{"product_id":"dji-agras-t50-oem-d12000i-rato-generator-camshaft-yc-dz-gr000054","title":"DJI Agras T50 OEM D12000i RATO Generator Camshaft (YC.DZ.GR000054)","description":"\u003cp\u003e\u003cstrong\u003eD12000i RATO Generator Camshaft | Valve Timing Component | Single-Cylinder Valve Train Core | Generator Engine Rebuild Component | Field-Ready OEM Replacement Component\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003chr\u003e\n\u003ch2\u003e🇺🇸 U.S.A. FIRST\u003c\/h2\u003e\n\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\n\u003cp\u003e\u003cstrong\u003eFREE \u0026amp; FAST Shipping is included for all U.S. customers.\u003c\/strong\u003e\u003c\/p\u003e\n\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\u003eThe camshaft is the timing brain of the little engine that charges your whole fleet. Every intake and exhaust event in that single cylinder happens because a machined lobe pushed a tappet at exactly the right crank angle, and nothing else can compensate once those lobes go soft. A worn cam does not announce itself with a bang — it shows up as an engine that cranks and cranks on a cold morning and will not pull rated output when three packs land on the charger at once.\u003c\/p\u003e\n\u003cp\u003eIgnoring it costs more than the shaft. A flattened lobe starves the cylinder of air, drives fueling rich, washes the bore, dilutes the oil, and pushes wear into the piston, rings, and rod — so a valve train repair becomes a full teardown. Replacing the camshaft while the rest of the engine is healthy restores correct lift and duration, clean starting, and full charging output.\u003c\/p\u003e\n\u003cp\u003eThat is why Ares Acres keeps hard-to-find OEM generator engine components in stock and shipped fast to the U.S.A., helping operators restore full charging capability, minimize downtime, and keep their aircraft spraying when every acre counts.\u003c\/p\u003e\n\u003cp\u003eFor professional farmers, aerial applicators, and commercial drone operators, this camshaft is the difference between a generator that turns fuel into battery turnarounds and one that turns fuel into noise.\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\u003chr\u003e\n\u003ch2\u003e✅ DJI Agras T50 \/ T40 \/ T30 Compatibility Guarantee\u003c\/h2\u003e\n\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\u003c\/ul\u003e\n\n\u003chr\u003e\n\u003ch2\u003e📦 Package Includes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1 × OEM Generator Camshaft (YC.DZ.GR000054)\u003c\/li\u003e\n\u003cli\u003e1 × RATO-build generator engine camshaft with integral lobe profiles and drive gear\u003c\/li\u003e\n\u003cli\u003eBench-ready — install with a new crankcase gasket and fresh SJ 10W-40\u003c\/li\u003e\n\u003cli\u003eOEM protective packaging\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\u003ch2\u003e🔧 Component Overview\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eDJI Agras T50 OEM D12000i RATO Generator Camshaft\u003c\/strong\u003e is the rotating valve timing shaft inside the RATO-build engine of the D12000i \/ D12000iE Multifunctional Inverter Generator — the ground charging unit that keeps DJI Agras T50, T40, and T30 flight batteries cycling fast enough to hold a spray schedule together.\u003c\/p\u003e\n\u003cp\u003eIn a four-stroke single-cylinder engine the camshaft is geared to the crankshaft and turns at half crank speed, so each lobe delivers one valve event per two crank revolutions. Lobes lift the tappets, tappets drive the pushrods, pushrods work the rockers, and the rockers crack the valves off their seats. Lobe shape alone sets how far each valve opens and how long it stays open.\u003c\/p\u003e\n\u003cp\u003eThat matters more on a charging generator than on most small engines. An inverter generator rectifies and re-synthesizes its output, which frees the engine to swing speed with demand instead of holding one fixed RPM — so the powerplant behind your charging cables ramps up and settles back every time a pack goes on or comes off. The camshaft absorbs that as constant valve train acceleration against spring pressure, all day.\u003c\/p\u003e\n\u003cp\u003eThe D12000iE ships in two engine builds, and that is the critical ordering detail here. Some machines carry a RATO engine and some carry a ZONGSHEN, and the internals are not interchangeable — DJI dual-sourced the powerplant and assigned separate material numbers down through camshafts, pistons, rings, rods, and gaskets. This camshaft, YC.DZ.GR000054, is the RATO part. The RATO engine assembly is YC.DZ.GR000020; the ZONGSHEN engine assembly is YC.DZ.GR000011.\u003c\/p\u003e\n\u003cp\u003eGet the build wrong and the box shows up useless.\u003c\/p\u003e\n\u003cp\u003eThe Generator Camshaft governs:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eValve opening timing for both the intake and the exhaust event\u003c\/li\u003e\n\u003cli\u003eValve lift — how far off its seat each valve travels at peak\u003c\/li\u003e\n\u003cli\u003eValve duration — how many crank degrees each valve stays open\u003c\/li\u003e\n\u003cli\u003eValve overlap at the top of the exhaust stroke, which drives scavenging\u003c\/li\u003e\n\u003cli\u003eCylinder breathing, which sets how much air the engine swallows under load\u003c\/li\u003e\n\u003cli\u003eMechanical drive of the tappets, pushrods, and rocker arms every stroke\u003c\/li\u003e\n\u003cli\u003eAny compression relief function carried on the shaft to ease cranking\u003c\/li\u003e\n\u003cli\u003eThe fixed timing relationship to the crankshaft, reset on every reassembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCommercial charging setups work brutally hard every day, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAll-day battery turnaround while two or three aircraft rotate through the field\u003c\/li\u003e\n\u003cli\u003eCold, damp pre-dawn starts on the coldest oil the engine will see\u003c\/li\u003e\n\u003cli\u003eContinuous run hours with no cool-down between packs during peak weeks\u003c\/li\u003e\n\u003cli\u003eConstant load swings as packs are plugged in, charged, and pulled back off\u003c\/li\u003e\n\u003cli\u003eBlowing dust, chaff, cotton lint, and freshly worked field dirt\u003c\/li\u003e\n\u003cli\u003eSummer heat soak on open ground with no shade and no airflow but its own\u003c\/li\u003e\n\u003cli\u003eTrailer and truck-bed miles over washboard field roads and rough turn rows\u003c\/li\u003e\n\u003cli\u003eLong off-season stand-downs with fuel and oil sitting inside the engine\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThroughout that service, generator engine components are routinely exposed to:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSliding contact pressure at the lobe-to-tappet interface every revolution\u003c\/li\u003e\n\u003cli\u003eValve spring load fighting the lobe open and slamming the valve closed\u003c\/li\u003e\n\u003cli\u003eOil film breakdown when the level drops or the oil is past its interval\u003c\/li\u003e\n\u003cli\u003eAbrasive silica that gets past a neglected air filter and into the oil\u003c\/li\u003e\n\u003cli\u003eFuel dilution of the oil from rich cold running, thinning the film\u003c\/li\u003e\n\u003cli\u003eHeat cycling from cold start to full charging load several times a day\u003c\/li\u003e\n\u003cli\u003eTorsional pulses from single-cylinder power strokes hammering the gear teeth\u003c\/li\u003e\n\u003cli\u003eDegraded oil carrying metal, carbon, and combustion acids across the lobes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThat duty ends a camshaft the way it ends every camshaft: the lobe loses its shape. Once the oil film fails, metal touches metal at the highest-pressure point in the valve train, and the lobe nose gives up material a few thousandths at a time. The engine quietly loses lift, valve clearance grows on its own between adjustments, and the cylinder stops breathing the way it was designed to.\u003c\/p\u003e\n\u003cp\u003eThe Generator Camshaft delivers:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCorrect factory-profile valve lift on both the intake and exhaust side\u003c\/li\u003e\n\u003cli\u003eSharp cold starts instead of long cranking and a laboring starter\u003c\/li\u003e\n\u003cli\u003eFull cylinder breathing so the engine makes rated output under load\u003c\/li\u003e\n\u003cli\u003eStable idle and clean load pickup when packs come onto the charger\u003c\/li\u003e\n\u003cli\u003eValve clearances that hold where you set them between service intervals\u003c\/li\u003e\n\u003cli\u003eA quiet valve train with no tick that survives warm-up and readjustment\u003c\/li\u003e\n\u003cli\u003eCorrect fueling because the engine draws the air the ECU expects\u003c\/li\u003e\n\u003cli\u003eA gear mesh that holds timing under single-cylinder torque pulses\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA camshaft is not a scheduled maintenance item. It is the part you replace when the engine has told you its valve timing is gone.\u003c\/p\u003e\n\n\u003chr\u003e\n\u003ch2\u003e⚙️ Functional Purpose\u003c\/h2\u003e\n\u003cp\u003eThe Generator Camshaft is designed to convert crankshaft rotation into precisely timed valve motion and hold that timing for the service life of the generator engine.\u003c\/p\u003e\n\u003cp\u003eThe camshaft:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRotates at half crankshaft speed through its drive gear\u003c\/li\u003e\n\u003cli\u003eLifts the intake tappet at the correct angle to start the intake stroke\u003c\/li\u003e\n\u003cli\u003eLifts the exhaust tappet at the correct angle to open the exhaust port\u003c\/li\u003e\n\u003cli\u003eSets peak valve lift through the height of each lobe nose\u003c\/li\u003e\n\u003cli\u003eSets valve duration through the width of each lobe flank\u003c\/li\u003e\n\u003cli\u003eEstablishes valve overlap at the top of the exhaust stroke\u003c\/li\u003e\n\u003cli\u003eControls valve acceleration through the ramp profile on each flank\u003c\/li\u003e\n\u003cli\u003eTransfers valve spring load into the crankcase through its journals\u003c\/li\u003e\n\u003cli\u003eCarries the timing reference aligned to the crankshaft on assembly\u003c\/li\u003e\n\u003cli\u003eGives the pushrods and rockers the foundation they work against\u003c\/li\u003e\n\u003cli\u003eHolds valve clearance stable so the lash you set at service stays set\u003c\/li\u003e\n\u003cli\u003eMaintains the breathing the fuel injection calibration was built around\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eEverything an operator judges the generator by traces back to this shaft. Charge time per pack, how many packs the machine pushes through in an hour, whether it fires on the first crank when it is cold enough to see your breath. There is no software correction for a worn lobe — the ECU can add fuel, but it cannot add air the camshaft never let in.\u003c\/p\u003e\n\u003cp\u003eThis is also why cam wear gets misdiagnosed. The symptoms look exactly like fuel and ignition faults, so operators replace plugs, chase injectors, and swap sensors while the real problem sits under the crankcase cover. DJI's schedule calls for valve clearance adjustment at 300H, and lash that keeps growing on the same valve between adjustments is the clearest early warning a lobe is going away.\u003c\/p\u003e\n\u003cp\u003eA failing camshaft costs you:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLong cranking on cold mornings while the window burns off with the dew\u003c\/li\u003e\n\u003cli\u003eCharge cycles that stretch because the engine cannot make rated output\u003c\/li\u003e\n\u003cli\u003eAircraft on the tailgate waiting for packs that should already be done\u003c\/li\u003e\n\u003cli\u003eExtra fuel burned per charging hour for less useful power out\u003c\/li\u003e\n\u003cli\u003eStarter, relay, and starting battery life spent on failed start attempts\u003c\/li\u003e\n\u003cli\u003eMoney on plugs, injectors, and sensors that were never the problem\u003c\/li\u003e\n\u003cli\u003eProgressive damage as a rich, poorly breathing cylinder washes the bore\u003c\/li\u003e\n\u003cli\u003eMetal debris circulating from the cam into the rod and crank journals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFix the timing and the engine remembers how to make power.\u003c\/p\u003e\n\n\u003chr\u003e\n\u003ch2\u003e⚠️ Common Replacement Indicators\u003c\/h2\u003e\n\u003cp\u003eTime to order when you see:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eExtended cranking before the engine catches, worst on the first cold start\u003c\/li\u003e\n\u003cli\u003eThe starter labors and the engine turns over harder than it once did\u003c\/li\u003e\n\u003cli\u003eA tick or tap from the valve cover area that never quiets after warm-up\u003c\/li\u003e\n\u003cli\u003eValve clearance on one valve opening up between scheduled 300H adjustments\u003c\/li\u003e\n\u003cli\u003eGenerator will not hold rated output when several packs come onto the charger\u003c\/li\u003e\n\u003cli\u003eCharge times per pack creeping longer with no change in conditions\u003c\/li\u003e\n\u003cli\u003eRough or hunting idle that survives new plugs, clean injectors, fresh fuel\u003c\/li\u003e\n\u003cli\u003ePower sagging instead of pulling when the charging load steps up\u003c\/li\u003e\n\u003cli\u003ePopping or backfire through the exhaust as the exhaust event lands wrong\u003c\/li\u003e\n\u003cli\u003eFuel consumption climbing for the same number of packs charged per day\u003c\/li\u003e\n\u003cli\u003eGray metallic paste or bright flakes in the drained oil or on the plug magnet\u003c\/li\u003e\n\u003cli\u003eCompression reads low while a leak-down test shows very little escaping air\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhat kills generator engine components in this position is almost always the oil. Low oil level is the leading cause of engine failure on these machines and DJI excludes low-oil damage from warranty — and the lobe-to-tappet contact patch carries so much pressure that it is among the first places the film fails. Oil past its change interval, oil diluted with fuel from long rich cold running, or oil loaded with silica that slipped past a clogged air filter does the same job more slowly. Add heat cycling and single-cylinder torque pulses on the gear teeth, and the lobes flatten while the timing the engine was designed around quietly disappears.\u003c\/p\u003e\n\u003cp\u003eReplacement is internal engine work on a bench. Drain the oil, pull the valve cover, back off the rockers, remove the pushrods and tappets, then take off the crankcase cover and lift the camshaft out. Inspect the tappet faces and drive gear before anything goes back — a cam that wore out its lobes almost always took the mating tappets with it. Install the new shaft with its timing mark aligned to the crank gear, close the case with a new crankcase gasket, refill with SJ 10W-40, set valve clearance, and run unloaded to temperature. Verify by re-checking lash after the heat cycle and confirming the machine starts promptly and holds output.\u003c\/p\u003e\n\n\u003chr\u003e\n\u003ch2\u003e📐 Specifications\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDJI Material Number:\u003c\/strong\u003e YC.DZ.GR000054\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eComponent Type:\u003c\/strong\u003e Engine valve timing shaft — RATO-build generator engine internal component\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDJI Agras D12000i \/ D12000iE Multifunctional Inverter Generator — RATO engine build only\u003c\/li\u003e\n\u003cli\u003eCharging platform for DJI Agras T50, T40, and T30 flight batteries\u003c\/li\u003e\n\u003cli\u003eRATO complete engine assembly YC.DZ.GR000020\u003c\/li\u003e\n\u003cli\u003eNOT compatible with the ZONGSHEN build (engine assembly YC.DZ.GR000011)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePackage Quantity:\u003c\/strong\u003e 1\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Area:\u003c\/strong\u003e Inside the crankcase of the RATO generator engine, riding in its journal bores and geared to the crankshaft\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFunction:\u003c\/strong\u003e Converts crankshaft rotation into timed intake and exhaust valve motion through tappets, pushrods, and rocker arms\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEngine Build:\u003c\/strong\u003e RATO — not interchangeable with the ZONGSHEN build\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSystem:\u003c\/strong\u003e Valve train \/ engine timing\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eService Oil:\u003c\/strong\u003e SJ 10W-40 (or equivalent) per DJI's published maintenance schedule\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eConstruction:\u003c\/strong\u003e Precision-machined hardened camshaft with integral lobe profiles, journals, and crankshaft drive gear\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMounting Type:\u003c\/strong\u003e Direct-fit OEM replacement component\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e Brand new — never installed, never flown\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApplication:\u003c\/strong\u003e Generator engine rebuild and valve train restoration for DJI Agras battery charging operations\u003c\/p\u003e\n\n\u003chr\u003e\n\u003ch2\u003e🚜 Necessary For\u003c\/h2\u003e\n\u003cp\u003eThis component is built for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCommercial aerial application businesses running multi-aircraft crews\u003c\/li\u003e\n\u003cli\u003eProfessional row crop farmers spraying their own acres\u003c\/li\u003e\n\u003cli\u003eCustom applicators billing by the acre with fixed daily targets\u003c\/li\u003e\n\u003cli\u003eAgricultural drone service providers covering multiple growers weekly\u003c\/li\u003e\n\u003cli\u003eLarge-scale precision agriculture operations with fleet charging demands\u003c\/li\u003e\n\u003cli\u003eOrchard and vineyard spray operators working tight seasonal windows\u003c\/li\u003e\n\u003cli\u003eRice, cotton, corn, soybean, and wheat application crews\u003c\/li\u003e\n\u003cli\u003ePasture, rangeland, and right-of-way vegetation management operators\u003c\/li\u003e\n\u003cli\u003eForestry and reforestation seeding crews working off-grid\u003c\/li\u003e\n\u003cli\u003eAgras dealers and service centers rebuilding customer generator engines\u003c\/li\u003e\n\u003cli\u003eIndependent drone repair shops supporting Agras fleets\u003c\/li\u003e\n\u003cli\u003eCooperatives and equipment-sharing groups running charging trailers\u003c\/li\u003e\n\u003cli\u003eUniversity, extension, and research programs operating Agras platforms\u003c\/li\u003e\n\u003cli\u003eAny operator whose entire crew charges off a single D12000i generator\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eEspecially valuable during:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePeak fungicide and insecticide windows when every hour counts\u003c\/li\u003e\n\u003cli\u003ePre-season generator inspection and engine rebuild before the first spray day\u003c\/li\u003e\n\u003cli\u003ePost-season teardown after a long, dusty year of charging duty\u003c\/li\u003e\n\u003cli\u003eCold early-spring mornings, where hard starting shows up first\u003c\/li\u003e\n\u003cli\u003eExtended multi-day burndown and pre-plant campaigns\u003c\/li\u003e\n\u003cli\u003eEmergency pest outbreak response when the fleet must fly immediately\u003c\/li\u003e\n\u003cli\u003eLong-haul custom application trips where a spare engine is not an option\u003c\/li\u003e\n\u003cli\u003eAny point where charge times stretch and output no longer holds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhen the charging station is down, the aircraft do not fly and the window closes. A camshaft is a small component with an entire spray operation standing behind it.\u003c\/p\u003e\n\n\u003chr\u003e\n\u003ch2\u003e💡 Why This Part Matters\u003c\/h2\u003e\n\u003cp\u003eEvery acre your fleet covers was charged into a battery first.\u003c\/p\u003e\n\u003cp\u003eThe D12000i generator is not a convenience item on a spray crew — it is the fuel depot. Aircraft endurance is measured in minutes and packs come off hot and empty all day, so the tempo of the whole operation is set by how fast the generator puts charge back. That tempo is set by whether the single cylinder can breathe, and the camshaft decides that.\u003c\/p\u003e\n\u003cp\u003eThis is also the ordering decision people get wrong. The RATO and ZONGSHEN builds look similar from the outside and do the same job, but their internals carry different DJI material numbers and will not swap. Ordering the wrong build's camshaft means an engine that stays apart on the bench while the crew waits. Buying YC.DZ.GR000054 against a confirmed RATO engine is the difference between a one-evening repair and a lost week.\u003c\/p\u003e\n\u003cp\u003eThe Generator Camshaft delivers:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRestored factory valve timing, lift, and duration in the charging engine\u003c\/li\u003e\n\u003cli\u003eFast, reliable cold starts at the front end of the spray day\u003c\/li\u003e\n\u003cli\u003eFull rated output when several packs land on the charger at once\u003c\/li\u003e\n\u003cli\u003eBattery turnaround times that hold steady instead of creeping longer\u003c\/li\u003e\n\u003cli\u003eA quiet valve train that keeps its adjustment between service intervals\u003c\/li\u003e\n\u003cli\u003eCorrect air delivery so the fuel injection calibration works as designed\u003c\/li\u003e\n\u003cli\u003eProtection for the piston, rings, rod, and crank downstream\u003c\/li\u003e\n\u003cli\u003eConfidence the machine every aircraft depends on will pull when asked\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRunning a worn camshaft, operators risk:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eA no-start on the one morning conditions are finally right to spray\u003c\/li\u003e\n\u003cli\u003eCharging output that cannot keep up with the aircraft in the field\u003c\/li\u003e\n\u003cli\u003eChasing fuel and ignition parts that were never at fault\u003c\/li\u003e\n\u003cli\u003eProgressive damage as a rich, poorly scavenged cylinder washes the bore\u003c\/li\u003e\n\u003cli\u003eMetal debris travelling from the cam and tappets into the rod and crank\u003c\/li\u003e\n\u003cli\u003eA valve train that will not hold clearance, forcing repeat teardowns\u003c\/li\u003e\n\u003cli\u003eStarter, relay, and battery failures from repeated hard-start attempts\u003c\/li\u003e\n\u003cli\u003eA full engine replacement instead of a single internal component swap\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor practical, hardworking operators, the value is simple:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCheck the oil. Confirm the build. Set the lash. Keep it flying.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAres Acres stocks genuine DJI Agras generator engine components so American operators can fix the actual fault, verify the repair, and get the charging station back under the crew before the next window opens.\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 T50 OEM D12000i RATO Generator Camshaft (YC.DZ.GR000054)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDJI material number:\u003c\/strong\u003e YC.DZ.GR000054\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eComponent:\u003c\/strong\u003e D12000i RATO Generator Camshaft\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct category:\u003c\/strong\u003e Generator Parts\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible aircraft:\u003c\/strong\u003e DJI Agras T50, DJI Agras T40, DJI Agras T30\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstalled position:\u003c\/strong\u003e Inside the crankcase of the RATO generator engine, riding in its journal bores and geared to the crankshaft\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePrimary function:\u003c\/strong\u003e Converts crankshaft rotation into timed intake and exhaust valve motion through tappets, pushrods, and rocker arms\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e Brand new — never installed, never flown\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 YC.DZ.GR000054; DJI YC.DZ.GR000054; YC.DZ.GR000054 DJI Agras; DJI Agras T50 D12000i RATO Generator Camshaft; T50 D12000i RATO Generator Camshaft; DJI T50 d12000i rato generator camshaft replacement; DJI Agras D12000i RATO Generator Camshaft; D12000i RATO Generator Camshaft OEM; D12000i RATO Generator Camshaft replacement part\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDefinition:\u003c\/strong\u003e The D12000i RATO Generator Camshaft (DJI material number YC.DZ.GR000054) is the genuine DJI OEM component inside the crankcase of the RATO generator engine on the DJI Agras T50, DJI Agras T40, DJI Agras T30, 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 YC.DZ.GR000054. Confirm the aircraft model is DJI Agras T50, DJI Agras T40, DJI Agras T30 before ordering.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e🔍 SEO Keywords\u003c\/h2\u003e\n\u003cp\u003eDJI Agras T50\u003c\/p\u003e\n\u003cp\u003eDJI Agras T50 Parts\u003c\/p\u003e\n\u003cp\u003eDJI T50 Parts\u003c\/p\u003e\n\u003cp\u003eDJI Agras T50 OEM Parts\u003c\/p\u003e\n\u003cp\u003eDJI Agras T50 replacement parts\u003c\/p\u003e\n\u003cp\u003eAgras T50 parts USA\u003c\/p\u003e\n\u003cp\u003eDJI Agras T40\u003c\/p\u003e\n\u003cp\u003eDJI Agras T40 Parts\u003c\/p\u003e\n\u003cp\u003eDJI T40 Parts\u003c\/p\u003e\n\u003cp\u003eDJI Agras T40 OEM Parts\u003c\/p\u003e\n\u003cp\u003eDJI Agras T40 replacement parts\u003c\/p\u003e\n\u003cp\u003eAgras T40 parts USA\u003c\/p\u003e\n\u003cp\u003eDJI Agras T30\u003c\/p\u003e\n\u003cp\u003eDJI Agras T30 Parts\u003c\/p\u003e\n\u003cp\u003eDJI T30 Parts\u003c\/p\u003e\n\u003cp\u003eDJI Agras T30 OEM Parts\u003c\/p\u003e\n\u003cp\u003eDJI Agras T30 replacement parts\u003c\/p\u003e\n\u003cp\u003eAgras T30 parts USA\u003c\/p\u003e\n\u003cp\u003eYC.DZ.GR000054\u003c\/p\u003e\n\u003cp\u003eDJI YC.DZ.GR000054\u003c\/p\u003e\n\u003cp\u003eYC.DZ.GR000054 replacement\u003c\/p\u003e\n\u003cp\u003eDJI Agras YC.DZ.GR000054 part\u003c\/p\u003e\n\u003cp\u003eDJI Agras D12000i RATO Generator Camshaft\u003c\/p\u003e\n\u003cp\u003eD12000i RATO Generator Camshaft OEM\u003c\/p\u003e\n\u003cp\u003ed12000i rato generator camshaft replacement\u003c\/p\u003e\n\u003cp\u003ed12000i rato generator camshaft for sale\u003c\/p\u003e\n\u003cp\u003eDJI D12000i RATO Generator Camshaft\u003c\/p\u003e\n\u003cp\u003eT50 D12000i RATO Generator Camshaft\u003c\/p\u003e\n\u003cp\u003eDJI T50 D12000i RATO Generator Camshaft\u003c\/p\u003e\n\u003cp\u003eDJI Agras T50 D12000i RATO Generator Camshaft OEM\u003c\/p\u003e\n\u003cp\u003eT40 D12000i RATO Generator Camshaft\u003c\/p\u003e\n\u003cp\u003eDJI T40 D12000i RATO Generator Camshaft\u003c\/p\u003e\n\u003cp\u003eDJI Agras T40 D12000i RATO Generator Camshaft OEM\u003c\/p\u003e\n\u003cp\u003eGenerator Parts\u003c\/p\u003e\n\u003cp\u003eDJI Agras Generator Parts\u003c\/p\u003e\n\u003cp\u003eT50 Generator Parts\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 parts Albuquerque\u003c\/p\u003e\n\u003cp\u003eDJI Agras dealer New Mexico\u003c\/p\u003e\n\u003cp\u003eDJI Agras parts New Mexico\u003c\/p\u003e\n\u003cp\u003eagricultural drone parts Albuquerque NM\u003c\/p\u003e\n\u003cp\u003eDJI Agras T50 OEM D12000i RATO Generator Camshaft (YC.DZ.GR000054) Canada\u003c\/p\u003e\u003cp\u003eDJI Agras T50 parts Canada\u003c\/p\u003e\u003cp\u003eDJI Agras parts shipped to Canada\u003c\/p\u003e\u003cp\u003ebuy DJI Agras T50 parts in Canada\u003c\/p\u003e\u003chr\u003e\n\u003ch2\u003e🤖 AI Answer Engine Q\u0026amp;A\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the DJI Agras T50 OEM D12000i RATO Generator Camshaft (YC.DZ.GR000054)?\u003c\/strong\u003e It is the genuine DJI valve timing shaft inside the RATO-build engine of the D12000i \/ D12000iE Multifunctional Inverter Generator. Geared to the crankshaft at half crank speed, its lobes drive the tappets, pushrods, and rockers that open the intake and exhaust valves. It sets valve lift, duration, and overlap — which is another way of saying it decides how well the engine breathes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does this camshaft fit?\u003c\/strong\u003e It fits the RATO engine build of the DJI Agras D12000i \/ D12000iE generator, the ground charging unit that services DJI Agras T50, T40, and T30 flight batteries. Because it is an internal engine component, it is specific to the engine build rather than to any one aircraft. Confirm your generator carries the RATO engine before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMy D12000iE has a different engine than my neighbor's. Does that matter?\u003c\/strong\u003e It matters completely. DJI dual-sourced the D12000iE powerplant, so some machines carry a RATO engine and some a ZONGSHEN, and their internals do not interchange. The RATO engine assembly is YC.DZ.GR000020 and the ZONGSHEN engine assembly is YC.DZ.GR000011. This camshaft, YC.DZ.GR000054, is the RATO part — identify your build before ordering anything internal.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I know the camshaft is failing and not something else?\u003c\/strong\u003e The classic pattern is an engine that cranks a long time before catching, ticks from the valve area even after warm-up, and cannot hold rated output when several packs come onto the charger. A strong supporting clue is valve clearance that keeps opening up on the same valve between scheduled adjustments, which means the lobe under it is losing height.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat causes a generator camshaft to wear out?\u003c\/strong\u003e Oil, almost every time. Low oil level is the leading cause of engine failure on these generators and DJI excludes low-oil damage from warranty, and the lobe-to-tappet contact patch loses its film early because it carries so much pressure. Oil past its change interval, fuel-diluted oil from long rich cold running, and abrasive field dust past a neglected air filter all grind lobes down.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I confirm the diagnosis before I order?\u003c\/strong\u003e Start with a compression test, then a cylinder leak-down test. If compression is low but very little air escapes past the rings or valves, the fault points at the valve train rather than at sealing. Pull the valve cover, compare intake and exhaust rocker motion, re-check valve clearance, and inspect the drained oil and drain plug for gray paste or metal flakes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does installation and verification look like?\u003c\/strong\u003e This is bench work. Drain the oil, pull the valve cover, back the rockers off, remove pushrods and tappets, then take off the crankcase cover and lift the camshaft out. Replace worn tappets along with the shaft, install the new camshaft with its timing mark aligned to the crank gear, close the case with a new crankcase gasket, refill with SJ 10W-40, and set valve clearance. Verify by re-checking lash after a heat cycle and confirming the generator holds output under load.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat maintenance keeps a camshaft alive?\u003c\/strong\u003e Follow the schedule DJI publishes for this generator. Check the engine oil level before every use and keep it filled with SJ 10W-40, adjust valve clearance at 300H, check, clean, or replace the spark plug at 100H, and replace the fuel pipe every two years. Keep the air filter clean in dusty field conditions, because silica in the oil is what quietly polishes lobes away.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the DJI Agras T50 OEM D12000i RATO Generator Camshaft (YC.DZ.GR000054) also available in Canada?\u003c\/strong\u003e Yes. Ares Acres ships this T50 OEM D12000i RATO Generator Camshaft 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\u003cp\u003e\u003cstrong\u003eDoes Ares Acres ship DJI Agras T50 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\u003cp\u003e\u003cstrong\u003eWhere can I buy this camshaft in the USA?\u003c\/strong\u003e Ares Acres LLC is a U.S.-based authorized DJI Agras reseller stocking genuine DJI Agras OEM generator engine components, including this RATO-build camshaft, YC.DZ.GR000054. Orders ship with free and fast U.S. shipping and same-day dispatch with tracking, so a generator apart on the bench does not sit longer than it has to. If you are unsure whether your machine is the RATO or ZONGSHEN build, confirm it first — the two engines do not share internals. Ares Acres also ships to Canada with free shipping.\u003c\/p\u003e","brand":"Ares Acres","offers":[{"title":"DJI T50","offer_id":52889834291520,"sku":"YC.DZ.GR000054","price":149.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/0159\/0848\/files\/IMG-0171.png?v=1785982890","url":"https:\/\/aresacres.com\/products\/dji-agras-t50-oem-d12000i-rato-generator-camshaft-yc-dz-gr000054","provider":"Ares Acres","version":"1.0","type":"link"}