{"product_id":"dji-agras-t100-oem-aircraft-arm-buckle-module-bc-ag-ss001099","title":"DJI Agras T100 OEM Aircraft Arm Buckle Module (BC.AG.SS001099)","description":"\u003cp\u003e\u003cstrong\u003eDJI Agras T100 OEM Aircraft Arm Buckle Module (BC.AG.SS001099) — This is the arm trigger assembly that locks the folding arm mechanism on the DJI Agras T100 — mounted in the arm-mounted propulsion hardware, doing the work of converting battery power into thrust at every corner of the aircraft. A worn trigger stops confirming arm lock — and an arm that is not positively locked is an aircraft that does not fly. You feel this part's condition every working day, whether you think about it or not. DJI material number BC.AG.SS001099. Aircraft Arm Buckle Module | Propulsion System Electronics | DJI Agras T100 Replacement Module | Field-Ready OEM Replacement Component.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDJI Material Number (SKU): BC.AG.SS001099\u003c\/strong\u003e — this is the official DJI part number for this exact component. Match it to your parts diagram or your old part's label to confirm fitment before ordering.\u003c\/p\u003e\u003ch2\u003e🇺🇸 U.S.A. FIRST\u003c\/h2\u003e\u003cp\u003eAres Acres LLC is a U.S.-based authorized DJI Agras reseller supporting American agricultural drone operators with genuine DJI Agras OEM replacement parts, accessories, and field-ready inventory.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFREE \u0026amp; FAST Shipping is included for all U.S. customers.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eWe understand that every day of downtime can impact productivity, scheduling, and profitability. That's why we focus on providing fast fulfillment, responsive customer support, and reliable access to the parts operators need most.\u003c\/p\u003e\n\u003cp\u003eAres Acres also ships genuine DJI OEM parts to Canada, with free shipping included on Canadian orders. Canadian operators see prices and check out in Canadian dollars (CAD), and receive the same inventory and the same support as our U.S. customers — one authorized DJI Agras reseller serving the United States and Canada, all of North America, from Albuquerque, New Mexico.\u003c\/p\u003e\n\u003ch2\u003e✅ DJI Agras T100 Compatibility Guarantee\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e🇺🇸 USA Compatibility Guarantee\u003c\/li\u003e\n\u003cli\u003e👍🏻 Satisfaction Guarantee\u003c\/li\u003e\n\u003cli\u003e💵 Money Back Guarantee\u003c\/li\u003e\n\u003cli\u003e📦 Same Day Shipping \u0026amp; Tracking\u003c\/li\u003e\n\u003cli\u003eDJI material number BC.AG.SS001099 — listed verbatim on the official DJI Agras T100 parts breakdown\u003c\/li\u003e\n\u003cli\u003eSupplier-listed fitment: DJI Agras T100\u003c\/li\u003e\n\u003cli\u003eBrand new condition — never installed, never flown\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003e📦 Package Includes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e1 × OEM Aircraft Arm Buckle Module (BC.AG.SS001099)\u003c\/li\u003e\n\u003cli\u003eOEM protective packaging\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003e🔧 Component Overview\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eDJI Agras T100 OEM Aircraft Arm Buckle Module\u003c\/strong\u003e is the OEM aircraft arm buckle module fitted to the arm-mounted propulsion hardware of the DJI Agras T100, responsible for converting battery power into thrust at every corner of the aircraft.\u003c\/p\u003e\u003cp\u003eConverting battery power into thrust at every corner of the aircraft is the job description for the arm-mounted propulsion hardware, and this module is part of how it gets done. The T100 is a working machine — it earns its keep in fill-and-fly cycles, not hangar hours — and every component in the arm-mounted propulsion hardware is sized, shaped, and specified around that duty. On the official parts diagram it sits alongside ESC Module, Screw (M30-HC00930058-060030-5103-Y), Motor Cable Clamp.\u003c\/p\u003e\u003cp\u003eIgnore a failing aircraft arm buckle module and the bill compounds: downtime in the middle of an application window, collateral wear on the parts around it, and jobs that slip to a competitor while the aircraft sits. Replacing it costs a part; not replacing it costs acres. That trade only runs one direction.\u003c\/p\u003e\u003cp\u003eFor professional farmers, aerial applicators, and commercial drone operators, this module is how the arm-mounted propulsion hardware stays field-ready instead of becoming the reason the aircraft sits.\u003c\/p\u003e\u003cp\u003eThis is a working part on a working aircraft.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eThe aircraft arm buckle module handles:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePerforming its designed role within the arm-mounted propulsion hardware every second the aircraft operates\u003c\/li\u003e\n\u003cli\u003eInterfacing with the surrounding propulsion system components exactly as the factory architecture intends\u003c\/li\u003e\n\u003cli\u003eMaintaining stable operation across the full temperature range of a working day\u003c\/li\u003e\n\u003cli\u003eSurviving the vibration environment of a heavy-lift multirotor at working power\u003c\/li\u003e\n\u003cli\u003eReporting its status to the flight system so faults surface as errors, not surprises\u003c\/li\u003e\n\u003cli\u003eHolding calibration and performance over a full season of duty\u003c\/li\u003e\n\u003cli\u003eSealing its electronics against spray drift, dust, and washdown exposure\u003c\/li\u003e\n\u003cli\u003eRestoring factory behavior the moment a worn unit is swapped out\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eThe T100 works brutally hard for its living, including:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eConverting battery power into thrust at every corner of the aircraft\u003c\/li\u003e\n\u003cli\u003eDawn-to-dusk spray campaigns during narrow application windows\u003c\/li\u003e\n\u003cli\u003eRepeated fill-fly-return cycles with minutes on the ground between loads\u003c\/li\u003e\n\u003cli\u003eFull-payload takeoffs from field edges, dozens of times per day\u003c\/li\u003e\n\u003cli\u003eChemical exposure from fungicides, herbicides, insecticides, and foliar fertilizers\u003c\/li\u003e\n\u003cli\u003ePressure-washer rinse-downs at the end of every spray day\u003c\/li\u003e\n\u003cli\u003eVibration from eight propulsion motors running at working power\u003c\/li\u003e\n\u003cli\u003eTransport bouncing on trailers and truck beds between fields\u003c\/li\u003e\n\u003cli\u003eTemperature swings from cold morning starts to full-sun afternoons\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhat attacks this module in the field:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eContinuous vibration transmitted from the propulsion system\u003c\/li\u003e\n\u003cli\u003eThermal cycling from cold starts to full-load afternoons\u003c\/li\u003e\n\u003cli\u003eMoisture ingress pressure from spray drift and washdowns\u003c\/li\u003e\n\u003cli\u003eChemical-laden dust settling on housings and connectors\u003c\/li\u003e\n\u003cli\u003eVoltage transients during battery hot-swaps\u003c\/li\u003e\n\u003cli\u003eConnector fretting from repeated maintenance access\u003c\/li\u003e\n\u003cli\u003eUV exposure degrading housings over seasons\u003c\/li\u003e\n\u003cli\u003eShock loads from firm landings on rough ground\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThat duty cycle is exactly what retires this module. None of these stresses is dramatic on its own — the accumulation is what does it. This is why propulsion system modules are inspection items every time the arm-mounted propulsion hardware is opened up, and why operators who run hard keep spares on the shelf.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eA healthy aircraft arm buckle module delivers:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFactory-correct fit in the arm-mounted propulsion hardware — no modification, no adaptation\u003c\/li\u003e\n\u003cli\u003eExact OEM behavior the surrounding components were engineered around\u003c\/li\u003e\n\u003cli\u003eRestored performance you can verify on the first post-repair flight\u003c\/li\u003e\n\u003cli\u003eSealing and protection maintained to the factory standard\u003c\/li\u003e\n\u003cli\u003eOne less known-weak point flying through your application window\u003c\/li\u003e\n\u003cli\u003eConfidence that the repair is done, not patched\u003c\/li\u003e\n\u003cli\u003eA maintenance log entry with a real DJI part number behind it\u003c\/li\u003e\n\u003cli\u003eFull compatibility with the parts around it — because it is the part the diagram calls for\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eStock the aircraft arm buckle module before the season does its work, and the arm-mounted propulsion hardware never becomes the reason the aircraft sits.\u003c\/p\u003e\u003cp\u003eDiagnose this one by comparison, because the aircraft carries more than one arm and they should all behave the same. With the batteries out and the propellers off, unlock and relock each arm in turn and pay attention to three things: the effort the trigger takes, whether the latch snaps home with a definite click, and whether the trigger returns fully on its own when you let go. Three arms that agree and one that does not is your answer without a single tool.\u003c\/p\u003e\n\u003cp\u003eThen test the lock rather than trusting it. With the arm latched, take hold of it near the outer end and work it firmly in the plane it folds through. A properly engaged buckle gives you nothing at all. Any perceptible movement, a click as the arm takes up slack, or a soft feel that firms up as you push harder means the engaging faces are no longer holding the arm; they are only catching it. That is a replacement, not an adjustment.\u003c\/p\u003e\n\u003cp\u003eSplit the fault into mechanical engagement and lock detection before ordering anything. If the arm is rock solid when latched but the aircraft still reports it unlocked, the mechanism is doing its job and the problem is in how lock state is being sensed and reported. If the warning clears when you push the arm a little further and thump it home, the mechanism is not fully engaging and the reporting is honest. Those two symptoms feel similar in the field and lead to different repairs.\u003c\/p\u003e\n\u003cp\u003eGet a light on the engaging faces before you decide. What you are looking for is a corner that has gone round instead of square, a bright polished ramp where the latch has been sliding instead of dropping in, a step or groove worn into the catch, and any burr or raised edge stopping the parts from meeting flat. Then work the trigger slowly and watch the return. A trigger that comes back lazily, stops short, or needs help is telling you about a tired spring or grit in the mechanism.\u003c\/p\u003e\n\u003ch2\u003e⚙️ Functional Purpose\u003c\/h2\u003e\u003cp\u003eThe aircraft arm buckle module is designed to do one job in the arm-mounted propulsion hardware and do it to specification: converting battery power into thrust at every corner of the aircraft.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eThe module:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eServes the arm-mounted propulsion hardware of the DJI Agras T100 exactly as the factory intends\u003c\/li\u003e\n\u003cli\u003eSupports converting battery power into thrust at every corner of the aircraft\u003c\/li\u003e\n\u003cli\u003eMaintains the tolerances and interfaces the surrounding parts depend on\u003c\/li\u003e\n\u003cli\u003eWithstands the chemical, vibration, and washdown environment of agricultural work\u003c\/li\u003e\n\u003cli\u003ePreserves the sealing and protection strategy of the platform\u003c\/li\u003e\n\u003cli\u003eKeeps failure modes visible and diagnosable instead of mysterious\u003c\/li\u003e\n\u003cli\u003eRestores factory behavior immediately upon correct installation\u003c\/li\u003e\n\u003cli\u003eProtects the more expensive components it works alongside\u003c\/li\u003e\n\u003cli\u003eCarries the exact DJI specification for its position\u003c\/li\u003e\n\u003cli\u003eSupports safe, predictable operation under full payload\u003c\/li\u003e\n\u003cli\u003eEliminates the guesswork of near-fit substitutes\u003c\/li\u003e\n\u003cli\u003eKeeps the aircraft inside its designed maintenance program\u003c\/li\u003e\n\u003cli\u003eHolds up across a full season of professional duty\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFunction on the T100 is a chain: propulsion system performance depends on the arm-mounted propulsion hardware, and the arm-mounted propulsion hardware depends on every part in it holding specification. This module is one link in that chain — and chains fail at the worn link, not the average one.\u003c\/p\u003e\u003cp\u003eThat is why the platform's maintenance philosophy is inspection and renewal, not run-to-failure. The operators with the best uptime records are not the ones with the newest aircraft — they are the ones who replace parts like this when inspection says so, on their own schedule instead of the failure's.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eA failing aircraft arm buckle module costs you:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDowntime in the middle of an application window — the most expensive hours in agriculture\u003c\/li\u003e\n\u003cli\u003eAcres not covered while the aircraft waits on a part\u003c\/li\u003e\n\u003cli\u003eCollateral wear on the components around the failing one\u003c\/li\u003e\n\u003cli\u003eDiagnostic hours chasing symptoms instead of causes\u003c\/li\u003e\n\u003cli\u003eRework when a temporary fix lets go mid-job\u003c\/li\u003e\n\u003cli\u003eCustomer trust when scheduled work slips\u003c\/li\u003e\n\u003cli\u003eHigher repair bills the longer the fault runs\u003c\/li\u003e\n\u003cli\u003eRisk exposure every flight the fault remains aboard\u003c\/li\u003e\n\u003cli\u003eResale value on an airframe with deferred maintenance\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFix it on your schedule, not the failure's.\u003c\/p\u003e\u003cp\u003ePull the batteries and take the propellers off before touching a folding arm mechanism, then support the arm so it cannot swing while the latch is out of it. An arm that drops or swings under its own weight with nothing holding it will find the hinge stops, the wiring inside, and your hand, in that order. Fold the arm to whatever position gives clear access to the module and block it there rather than holding it with one hand while you work.\u003c\/p\u003e\n\u003cp\u003ePhotograph the module in place, from more than one angle, before the first fastener moves. Note which way it faces, which face sits against the structure, and where any wiring or connector leaves it. Small fasteners near a folding joint disappear into the arm the moment they are dropped, so use a magnetic driver and tape over any opening they could fall into. Keep them in order as they come out; they are not always the same length.\u003c\/p\u003e\n\u003cp\u003eBefore the new module goes on, inspect the half it has to engage with. A latch and its catch wear as a pair, and fitting a fresh buckle against a catch that has a step worn into it just moves the wear onto the new part. Look at the catch under a light for rounding, a groove, or a bright polished band, and check that nothing has bent or shifted at its mounting. If the catch is worn, sort that out in the same visit rather than the next one.\u003c\/p\u003e\n\u003cp\u003eFit the module without forcing it into position, bring the fasteners to the torque given in DJI service documentation rather than to feel, and then cycle the arm a dozen times or more before you call the job done. What you are checking is that the latch engages the same way every single time, not that it worked once. Confirm the trigger returns fully on every cycle, confirm the arm is immovable when latched, and confirm the aircraft reports every arm locked before it leaves the ground.\u003c\/p\u003e\n\u003ch2\u003e⚠️ Common Replacement Indicators\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eError messages or warnings referencing this system in the app\u003c\/li\u003e\n\u003cli\u003eIntermittent operation that worsens with temperature or vibration\u003c\/li\u003e\n\u003cli\u003eFunction loss in the system this module serves\u003c\/li\u003e\n\u003cli\u003eVisible corrosion, moisture, or chemical residue at connectors\u003c\/li\u003e\n\u003cli\u003ePhysical damage to the housing after an impact\u003c\/li\u003e\n\u003cli\u003eErratic readings or behavior the aircraft cannot self-clear\u003c\/li\u003e\n\u003cli\u003eFailures that appear under load but pass on the bench\u003c\/li\u003e\n\u003cli\u003eBurnt smell or discoloration at the module\u003c\/li\u003e\n\u003cli\u003eRepeated faults after connector reseating\u003c\/li\u003e\n\u003cli\u003eFunction dropouts during arm fold or unfold\u003c\/li\u003e\n\u003cli\u003eBehavior that started after a hard landing or transport\u003c\/li\u003e\n\u003cli\u003eAge and hours — electronics in this environment are not lifetime parts\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhat kills propulsion system modules: the compounding of ordinary duty. Chemical exposure attacks materials, vibration works at every interface, UV ages every exposed surface, and washdowns drive water at every seam — repeated across hundreds of cycles per season. Add the occasional hard landing or transport knock and the result is predictable: the part that was fine in spring is the failure point by late season.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eReplacement and verification:\u003c\/strong\u003e Replacement is a standard shop task on the T100: open access to the arm-mounted propulsion hardware, document connections and hardware positions, swap the aircraft arm buckle module for the OEM unit, and reassemble with attention to seating, routing, and torque. Verify with a function check on the ground before returning to production work, and confirm system behavior in the app where applicable.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eConfirm before you order:\u003c\/strong\u003e this is DJI part BC.AG.SS001099. Check the label on your old aircraft arm buckle module or the position in your official parts diagram and match the number — revision suffixes like .01 or .F on a label are the same part.\u003c\/p\u003e\u003cp\u003eA latch that works all afternoon and sticks on the first cold morning is a real finding, not a quirk. Clearances tighten, residue stiffens, and a spring that was adequate in the heat of the day is not adequate at dawn. The aircraft is showing you a mechanism with almost no margin left, and the day it finally refuses to confirm lock will be a cold one when you are already behind. Act on that symptom rather than waiting for it to become permanent.\u003c\/p\u003e\n\u003cp\u003eA trigger that has been getting stiffer over a few weeks is describing contamination or corrosion, not fatigue. Fertilizer dust and dried spray work into a mechanism that lives in the open, absorb moisture, and turn into a paste that binds the moving parts and then eats the surfaces they slide on. Clean and dry it thoroughly and test again. If it frees up and stays free, change the wash habit. If it stiffens again within days, the surfaces underneath are already damaged.\u003c\/p\u003e\n\u003cp\u003eAn arm lock warning that appears in flight and clears on the ground is the worst version of this fault and the one to act on immediately. It means engagement or detection is marginal enough that vibration and flight loads move it across the threshold. Ground the aircraft on that symptom. A latch that is only just holding under load is not a maintenance item to schedule; it is the reason to stop flying that machine until the arm hardware has been gone through.\u003c\/p\u003e\n\u003cp\u003eInspect the arm hinge and the arm root while the latch is off. An arm that has been flying on a marginal lock has been moving a little at every load reversal, and that movement wears the hinge, elongates its bore, and leaves stress marks where the arm meets the structure. Look for a bright polished area, fretting powder, or play in the hinge with the latch removed. Fitting a new buckle to an arm that has been working loose fixes only half of what is wrong.\u003c\/p\u003e\n\u003cp\u003eA trigger that stays depressed after you let go, or a latch that has released on its own while the aircraft was being moved, is past the point of diagnosis. The first means the return spring or its guide has failed or something is jammed in the travel. The second means the mechanism is no longer capable of holding the arm at all. Neither one gets tested further and neither gets flown. Take the aircraft out of service and change the module.\u003c\/p\u003e\n\u003ch2\u003e📐 Specifications\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eDJI Material Number:\u003c\/strong\u003e BC.AG.SS001099\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePart:\u003c\/strong\u003e Aircraft Arm Buckle Module\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eType:\u003c\/strong\u003e OEM electronic module \/ assembly\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDJI Agras T100\u003c\/li\u003e\n\u003cli\u003ePosition: the arm-mounted propulsion hardware\u003c\/li\u003e\n\u003cli\u003eDiagram sheet: Arm Motor (official T100 parts list)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation Area:\u003c\/strong\u003e The arm-mounted propulsion hardware\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFunction:\u003c\/strong\u003e Converting battery power into thrust at every corner of the aircraft\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eConstruction:\u003c\/strong\u003e DJI OEM electronic assembly built to factory specification for the T100 platform\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eApplication:\u003c\/strong\u003e DJI Agras T100 propulsion system service and repair\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e Brand new\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMechanical Function:\u003c\/strong\u003e The trigger and latch that hold the folding arm positively in its flight position\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFault Split:\u003c\/strong\u003e Distinguish mechanical engagement from lock state reporting before ordering, since both produce an unlocked arm warning\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFastener Torque, Spring Rate, and Engagement Dimensions:\u003c\/strong\u003e Not published on the part. Take fastener torque from DJI service documentation and match the module against the removed unit rather than estimating\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWear Basis:\u003c\/strong\u003e Wear accumulates per fold cycle rather than per flight hour, so transport and setup habits drive service life as much as acreage does\u003c\/p\u003e\n\u003ch2\u003e🚜 Necessary For\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eBuilt for:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eProfessional aerial application businesses running the DJI Agras T100\u003c\/li\u003e\n\u003cli\u003eCustom applicators covering row crops, orchards, and pasture\u003c\/li\u003e\n\u003cli\u003eFarm operations running their own spray drone program\u003c\/li\u003e\n\u003cli\u003eAgricultural service providers with multi-aircraft fleets\u003c\/li\u003e\n\u003cli\u003eSpray drone fleet maintenance managers\u003c\/li\u003e\n\u003cli\u003eAgricultural drone repair shops and service centers\u003c\/li\u003e\n\u003cli\u003eOperators who keep a bench stock of wear parts\u003c\/li\u003e\n\u003cli\u003eRice, corn, soybean, and wheat growers using aerial application\u003c\/li\u003e\n\u003cli\u003eOrchard and vineyard spray operations\u003c\/li\u003e\n\u003cli\u003ePasture and rangeland weed control operators\u003c\/li\u003e\n\u003cli\u003eCover crop seeding operations using the spreading system\u003c\/li\u003e\n\u003cli\u003ePrecision agriculture consultants supporting drone fleets\u003c\/li\u003e\n\u003cli\u003eDealers and technicians maintaining customer aircraft\u003c\/li\u003e\n\u003cli\u003eOperators running dawn-to-dusk during application windows\u003c\/li\u003e\n\u003cli\u003eAnyone restoring a DJI Agras T100 to factory-correct condition\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eEspecially valuable during:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePre-season maintenance and rebuild windows before spray campaigns begin\u003c\/li\u003e\n\u003cli\u003ePeak spray season, when a grounded aircraft costs acres per hour\u003c\/li\u003e\n\u003cli\u003eFungicide application windows measured in days, not weeks\u003c\/li\u003e\n\u003cli\u003eLate-season spreading and cover crop seeding work\u003c\/li\u003e\n\u003cli\u003ePost-season teardown, inspection, and winterization\u003c\/li\u003e\n\u003cli\u003eFleet inspections after a hard landing or transport damage\u003c\/li\u003e\n\u003cli\u003ePre-contract equipment checks before custom application work\u003c\/li\u003e\n\u003cli\u003eMid-season turnarounds where the machine has to fly tomorrow\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIf the DJI Agras T100 earns its keep on your operation, this module belongs on your parts shelf before it belongs on your aircraft. The time to buy it is before the season, not during the failure.\u003c\/p\u003e\u003cp\u003eThis is a hold or do not fly item, so treat marginal as failed. There is no partial credit on an arm lock: either the arm is positively held or it is not, and everything downstream of that assumption, from control response to how loads pass into the structure, is built on the arm being exactly where it is supposed to be. If the mechanism is worn, sticky, intermittent, or you simply do not trust it, take the aircraft out of service and change the part.\u003c\/p\u003e\n\u003cp\u003eIf one buckle has worn out on a machine that folds several times a day, the others are the same age with the same cycles behind them. Inspect all of them the day the first one fails, and consider stocking more than one spare on a fleet, because these are not parts that fail one at a time across a season. They tend to fail in the same few weeks, in the middle of the same application window, on the same aircraft that does the most travelling.\u003c\/p\u003e\n\u003ch2\u003e💡 Why This Part Matters\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eEvery acre the T100 covers depends on the arm-mounted propulsion hardware doing its job — and the arm-mounted propulsion hardware depends on parts exactly like this one.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe economics are simple. The DJI Agras T100 exists to cover ground during windows that do not wait — and every hour it sits, the work either doesn't happen or happens on someone else's schedule. A failed aircraft arm buckle module is rarely expensive because of what the part costs; it is expensive because of when it fails. Parts fail during use, and use happens during the season.\u003c\/p\u003e\u003cp\u003eThat is the case for OEM and the case for stocking ahead. The OEM module fits the first time, behaves the way the platform expects, and carries the exact specification the propulsion system was engineered around — DJI material number BC.AG.SS001099. No adaptation, no surprises, no second teardown to undo a near-fit part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eThis module delivers:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFactory-correct fit in the arm-mounted propulsion hardware — no modification, no adaptation\u003c\/li\u003e\n\u003cli\u003eExact OEM behavior the surrounding components were engineered around\u003c\/li\u003e\n\u003cli\u003eRestored performance you can verify on the first post-repair flight\u003c\/li\u003e\n\u003cli\u003eSealing and protection maintained to the factory standard\u003c\/li\u003e\n\u003cli\u003eOne less known-weak point flying through your application window\u003c\/li\u003e\n\u003cli\u003eConfidence that the repair is done, not patched\u003c\/li\u003e\n\u003cli\u003eA maintenance log entry with a real DJI part number behind it\u003c\/li\u003e\n\u003cli\u003eFull compatibility with the parts around it — because it is the part the diagram calls for\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eRunning a compromised aircraft arm buckle module, operators risk:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMid-job failure during an application window\u003c\/li\u003e\n\u003cli\u003eCollateral damage to surrounding components\u003c\/li\u003e\n\u003cli\u003eChasing intermittent symptoms across the whole system\u003c\/li\u003e\n\u003cli\u003eAlignment and fit problems spreading to adjacent parts\u003c\/li\u003e\n\u003cli\u003eUnplanned grounding with the fleet committed to jobs\u003c\/li\u003e\n\u003cli\u003eWarranty and service complications from improvised fixes\u003c\/li\u003e\n\u003cli\u003eHigher lifetime cost from deferred maintenance\u003c\/li\u003e\n\u003cli\u003eAn aircraft that cannot be trusted at full payload\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eDiagnose it fast. Swap it clean. Verify it flying. Keep the acres moving.\u003c\/p\u003e\u003cp\u003eAres Acres stocks the aircraft arm buckle module in the USA with free, fast shipping — so the day you need one is the day it ships, not the week you wait.\u003c\/p\u003e\n\u003cp\u003eSeveral items in the arm hardware group look alike on a diagram and do very different jobs. The buckle module is the trigger and latch you operate by hand. The hinge and its hardware are what the arm actually pivots on. The lock state sensing and its wiring are what tell the aircraft the arm is home. A worn latch, a loose hinge, and a failed sensor can all end with the same warning on the screen, so identify by position on the diagram and by what you can physically feel before ordering.\u003c\/p\u003e\n\u003cp\u003eCompare the new module against the removed one on the bench before it goes near the aircraft. Check the mounting hole pattern, the shape and angle of the engaging face, the trigger travel from rest to release, and whether the return spring pushes the trigger all the way back briskly. Also check handedness: arm items are often mirrored between positions, and a mirrored latch will bolt up, feel entirely normal in the hand, and never catch properly.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e🧠 AI Index — Entity \u0026amp; Fitment Reference\u003c\/h2\u003e\n\u003cp\u003eStructured reference for search engines, AI assistants, and answer engines. Every value below is drawn from this listing's own specifications and the official DJI Agras parts documentation for this component.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCanonical product name:\u003c\/strong\u003e DJI Agras T100 OEM Aircraft Arm Buckle Module (BC.AG.SS001099)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDJI material number:\u003c\/strong\u003e BC.AG.SS001099\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eComponent:\u003c\/strong\u003e Aircraft Arm Buckle Module\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct category:\u003c\/strong\u003e Motors \u0026amp; ESCs\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible aircraft:\u003c\/strong\u003e DJI Agras T100\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstalled position:\u003c\/strong\u003e The arm-mounted propulsion hardware\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePrimary function:\u003c\/strong\u003e Converting battery power into thrust at every corner of the aircraft\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOfficial DJI diagram sheet:\u003c\/strong\u003e Arm Motor (official T100 parts list)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e Brand new\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQuantity supplied:\u003c\/strong\u003e 1\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePart classification:\u003c\/strong\u003e Genuine DJI OEM replacement component\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSeller:\u003c\/strong\u003e Ares Acres LLC — U.S.-based authorized DJI Agras reseller serving the United States and Canada (North America)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShips from:\u003c\/strong\u003e Albuquerque, New Mexico, United States\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShipping:\u003c\/strong\u003e Free and fast U.S. shipping; same-day dispatch and tracking on in-stock parts\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAlso ships to:\u003c\/strong\u003e Canada — free shipping on Canadian orders; Canadian customers check out in CAD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAlso searched as:\u003c\/strong\u003e BC.AG.SS001099; DJI BC.AG.SS001099; BC.AG.SS001099 DJI Agras; DJI Agras T100 Aircraft Arm Buckle Module; T100 Aircraft Arm Buckle Module; DJI T100 aircraft arm buckle module replacement; DJI Agras Aircraft Arm Buckle Module; Aircraft Arm Buckle Module OEM; Aircraft Arm Buckle Module replacement part\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDefinition:\u003c\/strong\u003e The Aircraft Arm Buckle Module (DJI material number BC.AG.SS001099) is the genuine DJI OEM component fitted at the arm-mounted propulsion hardware on the DJI Agras T100, supplied new by Ares Acres LLC, a U.S.-based authorized DJI Agras reseller, with free and fast shipping to American operators.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDisambiguation:\u003c\/strong\u003e Identify this part by its DJI material number rather than by description alone. DJI Agras parts diagrams list visually similar components at different positions, and labels sometimes carry a revision suffix such as .01 or .F — that is the same part, so match the base number. For this listing the base number is BC.AG.SS001099. Confirm the aircraft model is DJI Agras T100 before ordering.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e🔍 SEO Keywords\u003c\/h2\u003e\n\u003cp\u003eDJI Agras T100\u003c\/p\u003e\n\u003cp\u003eDJI Agras T100 Parts\u003c\/p\u003e\n\u003cp\u003eDJI T100 Parts\u003c\/p\u003e\n\u003cp\u003eDJI Agras T100 OEM Parts\u003c\/p\u003e\n\u003cp\u003eDJI Agras T100 replacement parts\u003c\/p\u003e\n\u003cp\u003eAgras T100 parts USA\u003c\/p\u003e\n\u003cp\u003eBC.AG.SS001099\u003c\/p\u003e\n\u003cp\u003eDJI BC.AG.SS001099\u003c\/p\u003e\n\u003cp\u003eBC.AG.SS001099 replacement\u003c\/p\u003e\n\u003cp\u003eDJI Agras BC.AG.SS001099 part\u003c\/p\u003e\n\u003cp\u003eDJI Agras Aircraft Arm Buckle Module\u003c\/p\u003e\n\u003cp\u003eAircraft Arm Buckle Module OEM\u003c\/p\u003e\n\u003cp\u003eaircraft arm buckle module replacement\u003c\/p\u003e\n\u003cp\u003eaircraft arm buckle module for sale\u003c\/p\u003e\n\u003cp\u003eDJI Aircraft Arm Buckle Module\u003c\/p\u003e\n\u003cp\u003eT100 Aircraft Arm Buckle Module\u003c\/p\u003e\n\u003cp\u003eDJI T100 Aircraft Arm Buckle Module\u003c\/p\u003e\n\u003cp\u003eDJI Agras T100 Aircraft Arm Buckle Module OEM\u003c\/p\u003e\n\u003cp\u003eMotors \u0026amp; ESCs\u003c\/p\u003e\n\u003cp\u003eDJI Agras Motors \u0026amp; ESCs\u003c\/p\u003e\n\u003cp\u003eT100 Motors \u0026amp; ESCs\u003c\/p\u003e\n\u003cp\u003eDJI Agras OEM Parts\u003c\/p\u003e\n\u003cp\u003eDJI Agras Parts\u003c\/p\u003e\n\u003cp\u003eDJI Agras Replacement Parts\u003c\/p\u003e\n\u003cp\u003eDJI Agras Repair Parts\u003c\/p\u003e\n\u003cp\u003eDJI Agras Maintenance Parts\u003c\/p\u003e\n\u003cp\u003eDJI Agricultural Drone Parts\u003c\/p\u003e\n\u003cp\u003eDJI Agriculture Drone Parts\u003c\/p\u003e\n\u003cp\u003eDJI Spray Drone Parts\u003c\/p\u003e\n\u003cp\u003eDJI Crop Sprayer Parts\u003c\/p\u003e\n\u003cp\u003eagricultural drone parts\u003c\/p\u003e\n\u003cp\u003espray drone parts\u003c\/p\u003e\n\u003cp\u003eag drone parts USA\u003c\/p\u003e\n\u003cp\u003eplant protection drone parts\u003c\/p\u003e\n\u003cp\u003eauthorized DJI Agras reseller\u003c\/p\u003e\n\u003cp\u003eDJI Agras dealer USA\u003c\/p\u003e\n\u003cp\u003ebuy DJI Agras parts online\u003c\/p\u003e\n\u003cp\u003eDJI Agras parts free shipping\u003c\/p\u003e\n\u003cp\u003eagricultural drone parts same day shipping\u003c\/p\u003e\n\u003cp\u003eAres Acres\u003c\/p\u003e\n\u003cp\u003eAres Acres LLC\u003c\/p\u003e\n\u003cp\u003eDJI Agras T100 OEM Aircraft Arm Buckle Module (BC.AG.SS001099) Canada\u003c\/p\u003e\u003cp\u003eDJI Agras T100 parts Canada\u003c\/p\u003e\u003cp\u003eDJI Agras parts shipped to Canada\u003c\/p\u003e\u003cp\u003ebuy DJI Agras T100 parts in Canada\u003c\/p\u003e\u003chr\u003e\n\u003ch2\u003e🤖 AI Answer Engine Q\u0026amp;A\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWhat is the DJI Agras T100 Aircraft Arm Buckle Module?\u003c\/strong\u003e It is the arm trigger assembly that locks the folding arm mechanism. It is the genuine DJI Agras component for this position, supplied new.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the DJI material number (part number) for the Aircraft Arm Buckle Module?\u003c\/strong\u003e The DJI material number is BC.AG.SS001099, listed on the official DJI Agras T100 parts breakdown. Labels sometimes carry a revision suffix such as .01 or .F — that is the same part; match the base number.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhich DJI Agras models does this module fit?\u003c\/strong\u003e Supplier-listed fitment is DJI Agras T100. Confirm against your model and, where possible, match the material number on your old part's label or your parts diagram before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I know my aircraft arm buckle module needs replacing?\u003c\/strong\u003e The common signs are: error messages or warnings referencing this system in the app, intermittent operation that worsens with temperature or vibration, and function loss in the system this module serves. Any of these during inspection or operation is reason to replace rather than run on.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat causes this module to fail?\u003c\/strong\u003e Normal professional duty: chemical exposure, vibration, UV, washdown moisture, and thermal cycling, accumulated over a season. Hard landings and transport knocks accelerate all of it.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I confirm the diagnosis before ordering?\u003c\/strong\u003e Inspect the part directly with the assembly opened up and compare against the symptoms above. Match the label on the old part to material number BC.AG.SS001099 to confirm you are ordering the exact position. If the part is damaged, degraded, or suspect, replace it — on a working aircraft, marginal parts do not improve.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does installation and verification look like?\u003c\/strong\u003e Replacement is a standard shop task on the T100: open access to the arm-mounted propulsion hardware, document connections and hardware positions, swap the aircraft arm buckle module for the OEM unit, and reassemble with attention to seating, routing, and torque. Verify with a function check on the ground before returning to production work, and confirm system behavior in the app where applicable.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat other parts should I inspect at the same time?\u003c\/strong\u003e On the official diagram this part sits alongside ESC Module, Screw (M30-HC00930058-060030-5103-Y), Motor Cable Clamp. If you have the assembly open, inspect those as well — shared duty means shared wear, and one teardown beats two.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe aircraft says an arm is not locked but the arm feels solid. What now?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThat pattern points at lock state reporting rather than at the latch itself. If the arm is genuinely immovable when you work it in the plane it folds through, the mechanism is doing its job and the fault sits in how the aircraft is being told. Check the module and its wiring for damage, contamination, and a connector that is not fully seated. If instead the warning clears when you push the arm a little further home, the mechanism is the problem and the reporting was honest.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow can I tell a worn latch from one that is just dirty?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eClean it and retest. Wash the dust and dried product out of the mechanism, dry it thoroughly, and cycle the trigger and the arm a dozen times. A mechanism that frees up and stays free was contaminated, and the fix is a wash habit rather than a part. One that stiffens or starts catching again within a few days has damaged sliding surfaces underneath the dirt, and no amount of cleaning brings those back.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShould I grease the arm latch to keep it working?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eNot unless DJI service documentation calls for a specific lubricant in that mechanism. A latch living in fertilizer dust and dried spray does not want heavy grease, because grease holds grit against the sliding faces and turns it into a grinding paste that wears the engagement surfaces far faster than running dry ever would. Clean, dry, and free is the target. If a mechanism needs lubricant before it will work, it is already worn.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it safe to fly with an arm lock that only sometimes confirms?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eNo. There is no partial credit on an arm lock: either the arm is positively held in its flight position or it is not, and everything from control response to how loads pass into the structure assumes that it is. An intermittent confirmation means engagement or sensing is sitting right on the threshold, and vibration and flight loads are enough to push it across. Ground the aircraft and go through the arm hardware.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat else should I look at while the latch is off the arm?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe catch the latch engages, for rounding, a worn step, or a polished band, since the two wear as a pair. The hinge, for play, elongation, or fretting powder, because an arm that has been locking marginally has been moving at every load reversal. The arm root, for stress marks. And any wiring or connector in the area, for chafe from the arm cycling. Fixing the latch alone leaves behind whatever the loose arm damaged.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy did this wear out when the aircraft has low flight hours?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eBecause this part wears per fold cycle, not per flight hour. Every trailer move, every setup and pack down, and every trip through a shop door is a full cycle on the latch and its engaging faces. A crew relocating four times a day puts more work into these mechanisms in a week than a machine flying off one pad does in a month. Two aircraft with identical hours can be in very different condition here.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the DJI Agras T100 OEM Aircraft Arm Buckle Module (BC.AG.SS001099) also available in Canada?\u003c\/strong\u003e Yes. Ares Acres ships this T100 OEM Aircraft Arm Buckle Module to Canada from its Albuquerque, New Mexico inventory with free shipping included, and Canadian customers see prices and check out in Canadian dollars (CAD).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes Ares Acres ship DJI Agras T100 parts to Canadian operators?\u003c\/strong\u003e Yes — Ares Acres is a U.S.-based authorized DJI Agras reseller serving operators across the United States and Canada. Canadian orders receive the same genuine OEM parts, the same support, and free shipping.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhere can I buy this part in the USA?\u003c\/strong\u003e Ares Acres is a U.S.-based authorized DJI Agras reseller stocking the Aircraft Arm Buckle Module (BC.AG.SS001099) with free and fast U.S. shipping, plus same-day shipping and tracking on in-stock parts. Ares Acres also ships to Canada with free shipping.\u003c\/p\u003e","brand":"Ares Acres","offers":[{"title":"DJI T100","offer_id":52893157032256,"sku":"BC.AG.SS001099","price":99.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/0159\/0848\/files\/IMG-0363_45911dc7-51c2-4626-b8f2-844aeb29091c.png?v=1786060905","url":"https:\/\/aresacres.com\/products\/dji-agras-t100-oem-aircraft-arm-buckle-module-bc-ag-ss001099","provider":"Ares Acres","version":"1.0","type":"link"}