{"product_id":"dji-agras-t50-oem-d12000i-rato-generator-start-motor-yc-dz-gr000016","title":"DJI Agras T50 OEM D12000i RATO Generator Start Motor (YC.DZ.GR000016)","description":"\u003cp\u003e\u003cstrong\u003eD12000i RATO Generator Start Motor | Electric Starting System Component | Engine Cranking Motor | Generator Starting Circuit Part | 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 start motor is the one component on the D12000i that has to work before anything else on your operation does. Flip the engine switch to START and this motor drags the RATO engine through compression until it fires. When it stops, you do not get a slow morning. You get a generator that will not light off, half-charged flight batteries, and aircraft sitting on the trailer while the wind comes up.\u003c\/p\u003e\n\u003cp\u003eA generator no-start is the most expensive kind of downtime because it is total. The engine may be perfect, the inverter and batteries healthy — none of it matters if the crankshaft never turns. Swapping the start motor is bench-level work with hand tools, and it puts a dead charging station back into production the same day.\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, the start motor is the difference between a spray window you work and a spray window you watch.\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 Start Motor (YC.DZ.GR000016)\u003c\/li\u003e\n\u003cli\u003eRATO-build electric start motor for the DJI Agras D12000i \/ D12000iE inverter generator\u003c\/li\u003e\n\u003cli\u003eDirect-fit replacement for the original starting motor\u003c\/li\u003e\n\u003cli\u003eFor RATO-engine generators only — not compatible with ZONGSHEN-build units\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 Start Motor\u003c\/strong\u003e is the electric cranking motor that spins the RATO engine inside the D12000i Multifunctional Inverter Generator — the ground charging unit that turns fuel into fast battery turnarounds for a DJI Agras T50, T40, or T30 spray fleet.\u003c\/p\u003e\n\u003cp\u003eEverything downstream of ignition depends on this motor doing one violent job reliably: pulling a cold single-cylinder engine through compression fast enough to start it. It draws very large current from the starting battery for a few seconds, throws a pinion into the flywheel ring gear, cranks, then disengages before the running engine can drive it backward. High load, short duration, and its whole life is lived in brutal bursts.\u003c\/p\u003e\n\u003cp\u003eThat duty cycle is why start motors wear the way they do. Brushes ride the commutator and get shorter every start. Bushings take side load each time the pinion slams into the ring gear. Solenoid contacts pit a little on every engagement. None of that is a defect — it is the job. But it means the motor has a service life, and on a generator started and stopped many times a day through spray season, that life arrives sooner than operators expect.\u003c\/p\u003e\n\u003cp\u003eThe D12000iE ships in two engine builds, RATO and ZONGSHEN, and they are not interchangeable. Separate material numbers run all the way down through the starting system, sensors, controllers, and operation panels. The RATO engine assembly is YC.DZ.GR000020; the ZONGSHEN engine assembly is YC.DZ.GR000011. This start motor, YC.DZ.GR000016, is the RATO-build unit. Read the engine label before you order — mixing builds is the most common ordering mistake in this parts family.\u003c\/p\u003e\n\u003cp\u003eNo crank, no charge. No charge, no flying.\u003c\/p\u003e\n\u003cp\u003eThe Start Motor handles:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInitial cranking of the RATO engine from a dead stop\u003c\/li\u003e\n\u003cli\u003eEngagement of the drive pinion with the flywheel ring gear\u003c\/li\u003e\n\u003cli\u003eCranking speed high enough to build compression and fire\u003c\/li\u003e\n\u003cli\u003eClean disengagement once the engine catches and overruns\u003c\/li\u003e\n\u003cli\u003eConversion of starting-battery current into cranking torque\u003c\/li\u003e\n\u003cli\u003eRepeatable cold starts and hot restarts, dozens per day\u003c\/li\u003e\n\u003cli\u003eThe mechanical link between starting circuit and engine\u003c\/li\u003e\n\u003cli\u003eFirst-attempt starting, so the crew is not chasing the generator\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\u003eContinuous field battery charging between flights\u003c\/li\u003e\n\u003cli\u003eHigh-tempo fill-and-fly rotations\u003c\/li\u003e\n\u003cli\u003eMultiple start and stop cycles per hour\u003c\/li\u003e\n\u003cli\u003eLong spraying campaigns across consecutive days\u003c\/li\u003e\n\u003cli\u003eSpreading and granular application days\u003c\/li\u003e\n\u003cli\u003eMulti-aircraft fleet support from one charging unit\u003c\/li\u003e\n\u003cli\u003eRemote operation far from grid power or a service truck\u003c\/li\u003e\n\u003cli\u003eCold pre-dawn starts and hot afternoon restarts in one shift\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\u003eVery high inrush current on every start attempt\u003c\/li\u003e\n\u003cli\u003eShock loading at pinion-to-ring-gear engagement\u003c\/li\u003e\n\u003cli\u003eHeat soak from engine and exhaust in a closed enclosure\u003c\/li\u003e\n\u003cli\u003eField dust and chaff drawn into the housing vents\u003c\/li\u003e\n\u003cli\u003eDew, moisture, and washdown spray in the starting circuit\u003c\/li\u003e\n\u003cli\u003eChassis vibration and transport shock over rough ground\u003c\/li\u003e\n\u003cli\u003eVoltage sag from a weak or aging starting battery\u003c\/li\u003e\n\u003cli\u003eExtended cranking caused by fuel or ignition faults\u003c\/li\u003e\n\u003cli\u003eCorrosion at cable terminals and ground straps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThose loads all land on the same few parts. Brushes shorten and lose spring pressure, the commutator glazes, bushings develop play, solenoid contacts pit until they can no longer pass full current. The failure is rarely sudden — first a start that takes a beat longer, then one that needs two attempts, then a click and nothing. Act at stage one and you swap a part on your own schedule. Wait and you swap it in a field at 5 a.m.\u003c\/p\u003e\n\u003cp\u003eThe Start Motor delivers:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFirst-attempt starting on a cold engine\u003c\/li\u003e\n\u003cli\u003eFull cranking speed instead of a laboring, marginal start\u003c\/li\u003e\n\u003cli\u003eLess drain on the starting battery per start\u003c\/li\u003e\n\u003cli\u003eClean pinion engagement without grinding or ring-gear damage\u003c\/li\u003e\n\u003cli\u003eReliable hot restarts between charge cycles\u003c\/li\u003e\n\u003cli\u003ePredictable generator behavior at the start of a shift\u003c\/li\u003e\n\u003cli\u003eReduced risk of a total charging shutdown in the field\u003c\/li\u003e\n\u003cli\u003eRestored service life on an otherwise healthy generator\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor operators whose entire flight line charges off one generator, a spare start motor on the shelf is insurance against the one failure that stops everything at once.\u003c\/p\u003e\n\n\u003chr\u003e\n\u003ch2\u003e⚙️ Functional Purpose\u003c\/h2\u003e\n\u003cp\u003eThe Start Motor is designed to crank the RATO engine fast enough and long enough to start it, then get out of the way — reliably, in the cold, in the dust, dozens of times a day, for a whole season.\u003c\/p\u003e\n\u003cp\u003eThe assembly:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConvert starting-battery current into high cranking torque\u003c\/li\u003e\n\u003cli\u003eThrow the drive pinion into mesh with the flywheel ring gear\u003c\/li\u003e\n\u003cli\u003eSpin the crankshaft through compression to starting speed\u003c\/li\u003e\n\u003cli\u003eHold that speed long enough for fuel and spark to catch\u003c\/li\u003e\n\u003cli\u003eOverrun and disengage the moment the engine fires\u003c\/li\u003e\n\u003cli\u003eProtect the ring gear through clean, square engagement\u003c\/li\u003e\n\u003cli\u003eReturn the pinion to rest so it does not drag on the flywheel\u003c\/li\u003e\n\u003cli\u003eInterface with the starter relay and engine switch circuit\u003c\/li\u003e\n\u003cli\u003eCarry heavy current through its terminal and ground path\u003c\/li\u003e\n\u003cli\u003eResist heat soak, dust, and moisture in field conditions\u003c\/li\u003e\n\u003cli\u003eDeliver consistent cranking at low ambient temperature\u003c\/li\u003e\n\u003cli\u003eSupport high-frequency start-stop duty all day long\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eUnderstand what the generator is to a spray operation. It is not a convenience item, it is the charging station. A T50, T40, or T30 flies on intelligent flight batteries that come back hot and empty, and the pace of the whole day is set by how fast those batteries turn around. That pace has one prerequisite: the engine has to be running. The start motor is the gate everything else passes through.\u003c\/p\u003e\n\u003cp\u003eIt also sits in a circuit, not in isolation, and that matters for diagnosis. The starting battery supplies it, the engine switch and starter relay command it, the ground path completes it. A tired battery, a corroded ground strap, or a failing relay produces symptoms that look exactly like a bad start motor. On RATO-build units that relay is listed separately as YC.DZ.GR000046. Ruling those out first is five minutes with a multimeter and it saves you replacing a good part.\u003c\/p\u003e\n\u003cp\u003eA failing start motor costs you:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eA generator that will not start at the front of a spray window\u003c\/li\u003e\n\u003cli\u003eAircraft grounded because batteries cannot be charged\u003c\/li\u003e\n\u003cli\u003eA whole crew standing still while one component is diagnosed\u003c\/li\u003e\n\u003cli\u003eStarting-battery damage from repeated failed crank attempts\u003c\/li\u003e\n\u003cli\u003eRing-gear damage from a pinion that grinds instead of meshing\u003c\/li\u003e\n\u003cli\u003eExtended cranking that floods the engine and fouls the plug\u003c\/li\u003e\n\u003cli\u003eLost acres in a weather window that will not reopen\u003c\/li\u003e\n\u003cli\u003eA charging platform that is trailer weight until it is fixed\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eOne motor. One swap. The generator lights off again.\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\u003eA single loud click at START with no crank at all\u003c\/li\u003e\n\u003cli\u003eRapid machine-gun clicking instead of steady cranking\u003c\/li\u003e\n\u003cli\u003eCranking noticeably slower and lazier than it used to be\u003c\/li\u003e\n\u003cli\u003eThe engine cranks but never reaches the speed it needs to fire\u003c\/li\u003e\n\u003cli\u003eGrinding or metallic scraping at the moment of engagement\u003c\/li\u003e\n\u003cli\u003eA high-pitched whir with no rotation — the pinion is not catching\u003c\/li\u003e\n\u003cli\u003eThe starter staying engaged and screaming after the engine starts\u003c\/li\u003e\n\u003cli\u003eStarting that works cold but fails once the enclosure is heat soaked\u003c\/li\u003e\n\u003cli\u003eIntermittent no-starts that clear if you tap the starter housing\u003c\/li\u003e\n\u003cli\u003eA hot electrical or burnt-insulation smell after cranking\u003c\/li\u003e\n\u003cli\u003eThe starting battery going flat far faster than it used to\u003c\/li\u003e\n\u003cli\u003eTwo or three attempts for a start that used to take one\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhat kills generator engine components in the starting system is wear plus the electrical environment around them. Brushes are consumable — they shorten with every start until spring pressure can no longer hold them on the commutator, and cranking speed falls off. Solenoid contacts pit each time they make and break heavy current, until they pass enough to click but not enough to crank. A weak starting battery is the quiet accelerator behind most of it: low voltage means high current, high current means heat, heat cooks windings. Add dust, dew in the terminals, vibration, and long cranking caused by unrelated fuel or ignition faults.\u003c\/p\u003e\n\u003cp\u003eDiagnose before you buy. Confirm the starting battery is fully charged and holds voltage under crank load, clean and retighten the positive and ground connections, then check whether the starter actually sees battery voltage at its terminal with the switch held in START — that one test separates a bad start motor from a bad relay, switch, or ground. Replacement is bench-level work: disconnect the battery, remove the starter cable, unbolt the motor, inspect the flywheel ring-gear teeth, fit the new motor and torque evenly. Verify by starting cold — fast even cranking, first-attempt catch, clean pinion release — then run a full charge cycle before trusting it with the fleet.\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.GR000016\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eComponent Type:\u003c\/strong\u003e Electric engine cranking motor for the D12000i \/ D12000iE inverter generator, RATO engine build\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\u003eGenerator charging platform for the DJI Agras T50, T40, and T30\u003c\/li\u003e\n\u003cli\u003eDJI material number YC.DZ.GR000016 — RATO-build start motor\u003c\/li\u003e\n\u003cli\u003eNot compatible with ZONGSHEN-build generators, which use separate material numbers\u003c\/li\u003e\n\u003cli\u003eRATO engine assembly YC.DZ.GR000020 \/ ZONGSHEN engine assembly YC.DZ.GR000011 — confirm your build before ordering\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 Mounted to the RATO engine, engaging the flywheel ring gear, inside the D12000i generator enclosure\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFunction:\u003c\/strong\u003e Cranks the engine from rest to starting speed and disengages once it fires\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEngine Build:\u003c\/strong\u003e RATO\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSystem:\u003c\/strong\u003e Electric starting circuit — starting battery, engine switch, starter relay, start motor\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRelated Part:\u003c\/strong\u003e Starter motor relay is listed separately for RATO-build units as YC.DZ.GR000046\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eService Class:\u003c\/strong\u003e Wear component — replaced on condition, not on a fixed hour interval\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eConstruction:\u003c\/strong\u003e Genuine DJI OEM start motor built to the original starting-system specification for the RATO engine build\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 Field charging generator service supporting DJI Agras T50, T40, and T30 spray and spreading 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\u003eProfessional agricultural drone operators\u003c\/li\u003e\n\u003cli\u003eCommercial aerial application businesses\u003c\/li\u003e\n\u003cli\u003eCustom spray and spreading contractors\u003c\/li\u003e\n\u003cli\u003eRow crop farms running their own aircraft\u003c\/li\u003e\n\u003cli\u003eOrchard, vineyard, and specialty crop operators\u003c\/li\u003e\n\u003cli\u003eRice, cotton, and sugarcane applicators\u003c\/li\u003e\n\u003cli\u003eMulti-aircraft fleet operations\u003c\/li\u003e\n\u003cli\u003eAgricultural cooperatives and shared equipment programs\u003c\/li\u003e\n\u003cli\u003eDrone service providers running back-to-back jobs\u003c\/li\u003e\n\u003cli\u003eFarm equipment dealers and support shops\u003c\/li\u003e\n\u003cli\u003eDJI Agras service centers and repair technicians\u003c\/li\u003e\n\u003cli\u003eIndependent field mechanics supporting spray fleets\u003c\/li\u003e\n\u003cli\u003eForestry and rangeland treatment crews\u003c\/li\u003e\n\u003cli\u003eAny operator whose flight line charges from one generator\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eEspecially valuable during:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePre-season generator inspection and readiness checks\u003c\/li\u003e\n\u003cli\u003ePeak spray season when the generator starts and stops all day\u003c\/li\u003e\n\u003cli\u003eCold early-morning starts at the front of a weather window\u003c\/li\u003e\n\u003cli\u003eLong remote jobs with no service truck nearby\u003c\/li\u003e\n\u003cli\u003eHigh-acreage contract work on a fixed schedule\u003c\/li\u003e\n\u003cli\u003eFungicide and insecticide timing windows that cannot slip\u003c\/li\u003e\n\u003cli\u003eFleet expansions that put more charging demand on one unit\u003c\/li\u003e\n\u003cli\u003eEnd-of-season teardown, storage prep, and spares restocking\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eKeeping a start motor on the shelf turns the worst failure on the generator into a morning of work instead of a lost week waiting on parts.\u003c\/p\u003e\n\n\u003chr\u003e\n\u003ch2\u003e💡 Why This Part Matters\u003c\/h2\u003e\n\u003cp\u003eEvery acre a T50 covers was charged into it first — and none of that happens until this motor turns the engine over.\u003c\/p\u003e\n\u003cp\u003eOperators think about the generator in terms of its big pieces: engine, inverter, controller. Those matter. But the failure that most often stops a day cold is smaller and cheaper, and it is this one. A start motor that will not crank makes every other healthy component in the machine irrelevant. No workaround, no partial operation, no reduced output. It starts or the day is over.\u003c\/p\u003e\n\u003cp\u003eThat is why this is a stocking part, not an ordering part. It ships easily and it fails on a curve you can see coming. Replacing it at the first sign of slow cranking, on your schedule, in your shop, is one of the highest-return maintenance calls on this machine. Genuine DJI OEM specification matters too — cranking torque, engagement geometry, and current draw all have to match what the ring gear and starting circuit expect.\u003c\/p\u003e\n\u003cp\u003eThe Start Motor delivers:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConfidence that the generator will start when the crew shows up\u003c\/li\u003e\n\u003cli\u003eFull cranking speed instead of a labored, marginal start\u003c\/li\u003e\n\u003cli\u003eClean engagement that protects the flywheel ring gear\u003c\/li\u003e\n\u003cli\u003eLess stress on the starting battery every single start\u003c\/li\u003e\n\u003cli\u003eReliable hot restarts through a long working day\u003c\/li\u003e\n\u003cli\u003eA known-good starting circuit when you are diagnosing other faults\u003c\/li\u003e\n\u003cli\u003eRestored service life on an otherwise sound generator\u003c\/li\u003e\n\u003cli\u003eUninterrupted battery turnaround for the whole fleet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRunning a worn start motor, operators risk:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eA complete no-start at the front of a spray window\u003c\/li\u003e\n\u003cli\u003eGrounded aircraft with no way to charge flight batteries\u003c\/li\u003e\n\u003cli\u003eRing-gear damage from repeated poor pinion engagement\u003c\/li\u003e\n\u003cli\u003eA ruined starting battery from repeated failed crank attempts\u003c\/li\u003e\n\u003cli\u003eA flooded engine and fouled spark plug from extended cranking\u003c\/li\u003e\n\u003cli\u003eHeat damage spreading to cables, terminals, and the starter relay\u003c\/li\u003e\n\u003cli\u003eEmergency parts sourcing and expedited shipping at peak season\u003c\/li\u003e\n\u003cli\u003eLost acres, missed application timing, and unhappy customers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor practical, hardworking operators, the value is simple:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStart it once. Charge without drama. Fly the window. Keep it flying.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA generator that starts on the first attempt every time is not a luxury on a commercial spray operation — it is the baseline the whole day is built on, and this is the part that delivers it.\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 Start Motor (YC.DZ.GR000016)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDJI material number:\u003c\/strong\u003e YC.DZ.GR000016\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eComponent:\u003c\/strong\u003e D12000i RATO Generator Start Motor\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 Mounted to the RATO engine, engaging the flywheel ring gear, inside the D12000i generator enclosure\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePrimary function:\u003c\/strong\u003e Cranks the engine from rest to starting speed and disengages once it fires\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.GR000016; DJI YC.DZ.GR000016; YC.DZ.GR000016 DJI Agras; DJI Agras T50 D12000i RATO Generator Start Motor; T50 D12000i RATO Generator Start Motor; DJI T50 d12000i rato generator start motor replacement; DJI Agras D12000i RATO Generator Start Motor; D12000i RATO Generator Start Motor OEM; D12000i RATO Generator Start Motor replacement part\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDefinition:\u003c\/strong\u003e The D12000i RATO Generator Start Motor (DJI material number YC.DZ.GR000016) is the genuine DJI OEM component fitted at Mounted to the RATO 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.GR000016. 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.GR000016\u003c\/p\u003e\n\u003cp\u003eDJI YC.DZ.GR000016\u003c\/p\u003e\n\u003cp\u003eYC.DZ.GR000016 replacement\u003c\/p\u003e\n\u003cp\u003eDJI Agras YC.DZ.GR000016 part\u003c\/p\u003e\n\u003cp\u003eDJI Agras D12000i RATO Generator Start Motor\u003c\/p\u003e\n\u003cp\u003eD12000i RATO Generator Start Motor OEM\u003c\/p\u003e\n\u003cp\u003ed12000i rato generator start motor replacement\u003c\/p\u003e\n\u003cp\u003ed12000i rato generator start motor for sale\u003c\/p\u003e\n\u003cp\u003eDJI D12000i RATO Generator Start Motor\u003c\/p\u003e\n\u003cp\u003eT50 D12000i RATO Generator Start Motor\u003c\/p\u003e\n\u003cp\u003eDJI T50 D12000i RATO Generator Start Motor\u003c\/p\u003e\n\u003cp\u003eDJI Agras T50 D12000i RATO Generator Start Motor OEM\u003c\/p\u003e\n\u003cp\u003eT40 D12000i RATO Generator Start Motor\u003c\/p\u003e\n\u003cp\u003eDJI T40 D12000i RATO Generator Start Motor\u003c\/p\u003e\n\u003cp\u003eDJI Agras T40 D12000i RATO Generator Start Motor 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 Start Motor (YC.DZ.GR000016) 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 D12000i RATO Generator Start Motor?\u003c\/strong\u003e It is the electric cranking motor that spins the RATO engine inside the DJI Agras D12000i \/ D12000iE Multifunctional Inverter Generator, the ground unit that charges T50, T40, and T30 flight batteries. Move the engine switch to START and this motor throws a pinion into the flywheel ring gear and turns the crankshaft fast enough to fire. DJI material number YC.DZ.GR000016.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does it fit?\u003c\/strong\u003e It fits the DJI Agras D12000i \/ D12000iE Multifunctional Inverter Generator built with the RATO engine. That generator is the charging platform for the DJI Agras T50, T40, and T30. One start motor per order. It does not fit ZONGSHEN-build generators.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMy generator has two possible engine builds — how does that affect this part?\u003c\/strong\u003e DJI dual-sourced the D12000iE powerplant, so some units carry a RATO engine and some a ZONGSHEN, and the two share almost no part numbers. The RATO engine assembly is YC.DZ.GR000020; the ZONGSHEN engine assembly is YC.DZ.GR000011. This start motor is the RATO part, YC.DZ.GR000016. Read the engine label before ordering anything in this family.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I know the start motor is failing rather than something else?\u003c\/strong\u003e The classic progression is cranking that gets slower over weeks, then starts needing two or three attempts, then a single click with no rotation. Grinding at engagement, a whir with no rotation, a burnt smell after cranking, or a starter that keeps spinning after the engine catches are all strong indicators. Intermittent no-starts only when the machine is hot point at the motor too.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I confirm the diagnosis before I order?\u003c\/strong\u003e Start at the battery, because a weak starting battery mimics a bad starter almost perfectly. Confirm it is fully charged and holds voltage while cranking, then clean and retighten the positive cable and ground strap. Next, check for battery voltage at the starter terminal with the switch held in START. Full voltage present and no rotation means the start motor; no voltage means look at the relay, switch, and wiring instead.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat causes generator start motors to fail?\u003c\/strong\u003e Brush wear is the normal end of life — brushes shorten with every start until they cannot hold contact pressure. Behind that: burnt solenoid contacts, worn bushings, dust and moisture intrusion, heat soak, and constant vibration. A weak starting battery accelerates all of it by forcing higher current and more heat, and long cranking caused by fuel or ignition faults cooks the motor faster than the start count suggests.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does installation and verification look like?\u003c\/strong\u003e Disconnect the battery, remove the starter cable, unbolt the motor, and inspect the flywheel ring-gear teeth while you have access. Fit the new motor, torque its fasteners evenly, and make sure the terminal and ground are clean and tight. Verify by starting cold: fast even cranking, first-attempt catch, clean pinion release. Run a full charge cycle before putting the unit back on fleet duty.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs there a service interval for the start motor?\u003c\/strong\u003e No. Unlike the air filters, spark plug, and fuel filter, the start motor is not on a fixed-hour schedule — it is replaced on condition. That is exactly why operators get caught out: nothing on the maintenance chart tells you it is due. Treat any change in cranking speed as your notice, and keep a spare on the shelf through peak season.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I keep running the generator if starting is getting difficult?\u003c\/strong\u003e You can, but you are gambling with the one failure that stops your whole flight line at once. A marginal starter also punishes everything around it: it flattens the starting battery, it encourages long cranking that floods the engine and fouls the plug, and poor engagement chews ring-gear teeth. Replacing it while it still cranks is far cheaper than replacing it plus the collateral damage.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the DJI Agras T50 OEM D12000i RATO Generator Start Motor (YC.DZ.GR000016) also available in Canada?\u003c\/strong\u003e Yes. Ares Acres ships this T50 OEM D12000i RATO Generator Start Motor 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 a DJI Agras D12000i generator start motor in the U.S.?\u003c\/strong\u003e Ares Acres LLC is a U.S.-based authorized DJI Agras reseller stocking genuine DJI Agras OEM generator and engine parts for American operators. We ship YC.DZ.GR000016 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 T50","offer_id":52889828655424,"sku":"YC.DZ.GR000016","price":449.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/0159\/0848\/files\/IMG-0157.png?v=1785982262","url":"https:\/\/aresacres.com\/products\/dji-agras-t50-oem-d12000i-rato-generator-start-motor-yc-dz-gr000016","provider":"Ares Acres","version":"1.0","type":"link"}