{"product_id":"dji-agras-t50-oem-d12000i-rato-generator-ignition-coil-yc-dz-gr000018","title":"DJI Agras T50 OEM D12000i RATO Generator Ignition Coil (YC.DZ.GR000018)","description":"\u003cp\u003e\u003cstrong\u003eIgnition Coil | High-Tension Spark Source | D12000i RATO Engine Build | EFI Ignition 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 retailer 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 ignition coil turns the generator's low-voltage supply into the tens of thousands of volts it takes to jump the spark plug gap under compression. On the RATO build of the D12000i engine the electronic fuel injection control board switches it, picking the exact crankshaft moment to collapse the coil's magnetic field. Nobody thinks about a healthy coil. A dying one fails the worst way possible: fine cold, then it stumbles and quits once hot, and restarts twenty minutes later like nothing happened.\u003c\/p\u003e\n\u003cp\u003eThat failure lands mid-rotation, with three packs down and a loaded aircraft on the pad. The generator is the only thing feeding the chargers, so when it goes dark the whole spray fleet stops — not one aircraft, all of them. Operators chase the intermittent for days, swapping plugs and blaming the fuel system, while the weather window closes. A coil is one of the smallest parts in this engine and one of the most disruptive when it goes. A spare on the trailer turns a multi-day mystery into a fifteen-minute swap.\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 reliable hot-start ignition, 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 coil is the one part standing between a full fuel tank and a machine that will not make spark.\u003c\/p\u003e\n\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 Ignition Coil (YC.DZ.GR000018)\u003c\/li\u003e\n\u003cli\u003eOEM high-tension lead and spark plug boot as supplied on the assembly\u003c\/li\u003e\n\u003cli\u003eOEM low-tension primary connector and RATO-build mounting provisions\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 Ignition Coil\u003c\/strong\u003e is the high-tension ignition coil for the RATO engine build of the DJI Agras D12000i Multifunctional Inverter Generator, the ground charging generator behind T50, T40 and T30 flight batteries.\u003c\/p\u003e\n\u003cp\u003eThe coil is a two-winding transformer on a laminated iron core, sealed in potting compound. Current builds a field in the heavy primary winding, and when that current is interrupted the collapsing field induces spark voltage across thousands of fine secondary turns. All of it depends on the insulation between those windings. Once insulation breaks down the coil does not stop — it works worse, which is far harder to find than a clean failure.\u003c\/p\u003e\n\u003cp\u003eThe coil does not act alone here. The ignition trigger reports crankshaft position, the EFI control board computes spark advance from that signal plus load and temperature, and the board switches the primary. Meanwhile the spark plug's demand voltage climbs as its electrodes erode. A wide gap stresses weak secondary insulation, and weak insulation finds ground instead of the plug. That is why DJI puts the plug on a 100-hour check, clean or replace interval.\u003c\/p\u003e\n\u003cp\u003eDuty cycle makes this a wear item. The engine holds high, steady RPM against a heavy stepping electrical load for hours, under a cowling next to the exhaust, on a trailer that shakes down field roads between jobs. Heat cycling works the potting compound; vibration works the leads and connector. Micro-cracks and carbon tracking open up, and the first symptom is almost always a hot misfire under load.\u003c\/p\u003e\n\u003cp\u003eA coil rarely dies outright. It fades, and it fades hot.\u003c\/p\u003e\n\u003cp\u003eThe Ignition Coil governs:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSteps low voltage up to spark-gap voltage every combustion event\u003c\/li\u003e\n\u003cli\u003eStores energy in the primary winding's field between firings\u003c\/li\u003e\n\u003cli\u003eCollapses that field on command from the EFI control board\u003c\/li\u003e\n\u003cli\u003eDelivers the high-tension pulse through the boot to the plug\u003c\/li\u003e\n\u003cli\u003eHolds spark energy steady as charger load steps on and off\u003c\/li\u003e\n\u003cli\u003eIsolates high-tension energy from the low-voltage electronics\u003c\/li\u003e\n\u003cli\u003eCarries the stop circuit that lets the panel kill the engine\u003c\/li\u003e\n\u003cli\u003eGrounds through its mount to close the secondary circuit\u003c\/li\u003e\n\u003cli\u003eSupports hot restarts between battery rotations\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\u003eHours of high-RPM running while packs cycle through chargers\u003c\/li\u003e\n\u003cli\u003eLoad that steps hard every time a charger picks up a pack\u003c\/li\u003e\n\u003cli\u003eBack-to-back charge cycles with minutes of cool-down between\u003c\/li\u003e\n\u003cli\u003eHot afternoons where under-cowl heat never gets to fall\u003c\/li\u003e\n\u003cli\u003eCold pre-dawn starts before the first flight of the day\u003c\/li\u003e\n\u003cli\u003eDust, chaff and residue pulled across the engine by the fan\u003c\/li\u003e\n\u003cli\u003eTrailers that put road shock straight into the engine\u003c\/li\u003e\n\u003cli\u003eLong transport legs, then immediate restart at full load\u003c\/li\u003e\n\u003cli\u003eFuel of varying age, including ethanol blends left in the tank\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\u003eSustained under-cowl heat off the cylinder head and exhaust\u003c\/li\u003e\n\u003cli\u003eThermal cycling that works the potting compound loose\u003c\/li\u003e\n\u003cli\u003eConstant engine vibration through the mounting bracket\u003c\/li\u003e\n\u003cli\u003eRoad shock and impact during transport between fields\u003c\/li\u003e\n\u003cli\u003eMoisture and wash-down water at the low-tension connector\u003c\/li\u003e\n\u003cli\u003eDust packing into the gap between coil and flywheel\u003c\/li\u003e\n\u003cli\u003eVoltage spikes from loose battery terminals and jump starts\u003c\/li\u003e\n\u003cli\u003eHigh voltage demand created by an eroded, over-gapped plug\u003c\/li\u003e\n\u003cli\u003eChafing where the lead crosses an edge or a hot surface\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThat combination attacks the coil from the inside out. Heat and vibration open microscopic paths through the winding insulation, those paths carbonize, and spark starts leaking internally instead of reaching the plug. Leakage worsens as the coil warms, so the fault appears under load and hides during a cold bench test. That signature is what sends operators down the wrong road.\u003c\/p\u003e\n\u003cp\u003eThe Ignition Coil delivers:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFull-strength spark from first crank to the end of a session\u003c\/li\u003e\n\u003cli\u003eHot restarts that light immediately instead of cranking\u003c\/li\u003e\n\u003cli\u003eStable RPM when the chargers step load onto the engine\u003c\/li\u003e\n\u003cli\u003eClean combustion that keeps the plug reading tan, not sooted\u003c\/li\u003e\n\u003cli\u003eClosed-loop fuel control free of misfire-driven trim drift\u003c\/li\u003e\n\u003cli\u003eNo raw fuel dumped into the exhaust to cook the oxygen sensor\u003c\/li\u003e\n\u003cli\u003ePredictable battery turn times so the flight schedule holds\u003c\/li\u003e\n\u003cli\u003eAn end to shutdowns you cannot reproduce in the shop\u003c\/li\u003e\n\u003cli\u003eCorrect OEM fit to the RATO bracket, connector and routing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is the RATO part. If your generator is the ZONGSHEN build, the correct coil is a different DJI material number.\u003c\/p\u003e\n\n\u003chr\u003e\n\u003ch2\u003e⚙️ Functional Purpose\u003c\/h2\u003e\n\u003cp\u003eThe Ignition Coil is designed to generate and deliver the high-tension pulse that fires the spark plug at the exact crankshaft moment the EFI control board commands, every event, for hours under charging load.\u003c\/p\u003e\n\u003cp\u003eThe assembly:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAccepts switched low-voltage supply through the primary circuit\u003c\/li\u003e\n\u003cli\u003eBuilds a magnetic field in the laminated core between firings\u003c\/li\u003e\n\u003cli\u003eReleases stored energy the instant the primary is interrupted\u003c\/li\u003e\n\u003cli\u003eInduces spark-gap voltage across the secondary winding\u003c\/li\u003e\n\u003cli\u003eRoutes that voltage through the high-tension lead to the boot\u003c\/li\u003e\n\u003cli\u003eHolds spark duration long enough to light the injected charge\u003c\/li\u003e\n\u003cli\u003eIsolates high-tension energy from the engine electronics\u003c\/li\u003e\n\u003cli\u003eHolds the flywheel air gap relationship the build depends on\u003c\/li\u003e\n\u003cli\u003eWithstands under-cowl heat without insulation breakdown\u003c\/li\u003e\n\u003cli\u003eResists vibration fatigue at the terminals and lead exits\u003c\/li\u003e\n\u003cli\u003eCarries the stop circuit for operator panel shutdown\u003c\/li\u003e\n\u003cli\u003eRestarts a hot engine on the first revolution, not the tenth\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eUnderstand what a marginal coil does to the rest of the engine. A misfire dumps raw fuel into the exhaust, and the extra oxygen riding with it makes the oxygen sensor report lean. The control board obediently adds fuel. Now the engine really is rich, the plug sooties, the misfire worsens, and the operator is staring at a fuel system that looks broken. That loop is how people buy injectors and control boards that were never faulty.\u003c\/p\u003e\n\u003cp\u003eThe discipline that saves money is simple. Put an inline spark tester between coil and plug and crank — you want fat, consistent blue, not thin yellow that skips. Do it on a hot engine, because a heat-soaked coil passes cold and fails warm. Check plug condition and gap, confirm the low-tension connector is clean, confirm the stop circuit is not shorting the coil to ground, and confirm the trigger is producing a signal. Only then is the coil the answer.\u003c\/p\u003e\n\u003cp\u003eA failing ignition coil costs you:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHot shutdowns mid-rotation with aircraft waiting on the pad\u003c\/li\u003e\n\u003cli\u003eCrank-and-catch hot starts that waste minutes every turn\u003c\/li\u003e\n\u003cli\u003eUnstable RPM and lost output when chargers step load on\u003c\/li\u003e\n\u003cli\u003eSpark plugs fouled by repeated misfire and unburned fuel\u003c\/li\u003e\n\u003cli\u003eOxygen sensor contamination from raw fuel in the exhaust\u003c\/li\u003e\n\u003cli\u003eFuel trim drift that makes a healthy injector look bad\u003c\/li\u003e\n\u003cli\u003eMoney spent on fuel parts chasing an ignition fault\u003c\/li\u003e\n\u003cli\u003eDays of intermittent troubleshooting you cannot reproduce\u003c\/li\u003e\n\u003cli\u003eA grounded fleet every time the generator quits mid-session\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSpark is not optional. Everything else waits on it.\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\u003eStarts and runs cold, then misfires or dies once fully warmed\u003c\/li\u003e\n\u003cli\u003eShuts down under charging load, restarts after cooling off\u003c\/li\u003e\n\u003cli\u003eHard hot starting — long cranking after a short shutdown\u003c\/li\u003e\n\u003cli\u003eWeak, thin or yellow spark on an inline tester, not fat blue\u003c\/li\u003e\n\u003cli\u003eSpark that drops out when the coil is warmed with a heat gun\u003c\/li\u003e\n\u003cli\u003eRough running or surging that worsens as temperature climbs\u003c\/li\u003e\n\u003cli\u003ePopping or backfiring through the exhaust under load\u003c\/li\u003e\n\u003cli\u003eA fresh spark plug that fouls or sooties within hours\u003c\/li\u003e\n\u003cli\u003eRPM sag exactly when a charger picks up a pack\u003c\/li\u003e\n\u003cli\u003eCracks, blisters, swelling or heat discoloration on the body\u003c\/li\u003e\n\u003cli\u003eCarbon tracking on the coil tower, lead or plug boot\u003c\/li\u003e\n\u003cli\u003eCorroded, green or loose low-tension connector terminals\u003c\/li\u003e\n\u003cli\u003eA lead that is stiff, cracked, chafed or melted near exhaust\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhat kills generator engine components like this coil: heat and vibration, in that order. Sustained under-cowl temperature degrades the insulation between primary and secondary windings, and every heat cycle works the potting compound until micro-cracks open. Vibration from high-RPM running and trailer transport fatigues terminals and lead exits. Moisture and agricultural chemicals corrode the primary terminals and build leakage paths on the outside of the coil. An eroded spark plug raises the voltage the coil must produce on every event, so a plug left past its interval accelerates the death of the coil behind it. Once a carbon track forms, spark takes the easy path to ground — more readily as the coil heats, which is exactly why the fault only shows when the machine is working.\u003c\/p\u003e\n\u003cp\u003eReplacement is easy; verification is what matters. Cool the engine, disconnect the battery, remove the shroud, pull the plug boot by the boot rather than the lead, unplug the low-tension connector and unbolt the coil. Fit the new one, set any flywheel air gap the build calls for with a feeler gauge before final tightening, route the lead clear of exhaust and sharp edges, and seat the connector and boot fully. Then verify: spark test for fat blue, start, and run under real battery charging load until fully hot. A coil swap is confirmed at operating temperature, not in the shop.\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.GR000018\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eComponent Type:\u003c\/strong\u003e High-tension ignition coil for the RATO engine build of the D12000i inverter generator\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\u003eThe generator serving DJI Agras T50, T40 and T30 flight battery charging\u003c\/li\u003e\n\u003cli\u003eRATO engine assembly YC.DZ.GR000020 — not ZONGSHEN engine assembly YC.DZ.GR000011\u003c\/li\u003e\n\u003cli\u003eDJI material number YC.DZ.GR000018 — confirm your engine build before ordering\u003c\/li\u003e\n\u003cli\u003eNot interchangeable with the ZONGSHEN-build ignition coil\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 Engine ignition system, mounted at the flywheel on the RATO-build D12000i engine\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFunction:\u003c\/strong\u003e Transforms low-voltage primary current into the high-tension pulse that fires the spark plug on command from the EFI control board\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEngine Build:\u003c\/strong\u003e RATO — separate material number from the ZONGSHEN build\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSystem:\u003c\/strong\u003e Electronically controlled ignition on a closed-loop EFI engine\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRelated Service:\u003c\/strong\u003e Spark plug check, clean or replace at 100 hours\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompanion Parts:\u003c\/strong\u003e Ignition trigger, spark plug, EFI control board and cable\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eConstruction:\u003c\/strong\u003e OEM two-winding coil on a laminated core, sealed in potting compound, with integral high-tension lead and plug boot\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 Genuine DJI OEM replacement for the D12000i RATO generator ignition system supporting T50, T40 and T30 fleet charging\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 fleets\u003c\/li\u003e\n\u003cli\u003eRow crop farmers flying their own acres with DJI Agras equipment\u003c\/li\u003e\n\u003cli\u003eCustom spray operators charging in the field all day\u003c\/li\u003e\n\u003cli\u003eAgricultural drone service providers billing by the acre\u003c\/li\u003e\n\u003cli\u003eOrchard, vineyard and specialty crop spray crews\u003c\/li\u003e\n\u003cli\u003eRice, cotton, corn and soybean application teams\u003c\/li\u003e\n\u003cli\u003eForestry and rangeland treatment operations\u003c\/li\u003e\n\u003cli\u003eCover crop and interseeding contractors\u003c\/li\u003e\n\u003cli\u003eMosquito and vector control programs\u003c\/li\u003e\n\u003cli\u003eCo-ops maintaining shared spray fleets\u003c\/li\u003e\n\u003cli\u003eDJI Agras dealer service departments and repair shops\u003c\/li\u003e\n\u003cli\u003eFleet managers responsible for generator uptime\u003c\/li\u003e\n\u003cli\u003eIndependent drone maintenance technicians\u003c\/li\u003e\n\u003cli\u003eTraining academies running Agras aircraft and ground support daily\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eEspecially valuable during:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePeak spray season when the generator runs dawn to dark\u003c\/li\u003e\n\u003cli\u003eHot afternoons when under-cowl temperature is at its worst\u003c\/li\u003e\n\u003cli\u003eMulti-aircraft rotations where charging is the bottleneck\u003c\/li\u003e\n\u003cli\u003ePre-season generator inspection and shakedown runs\u003c\/li\u003e\n\u003cli\u003eThe 100-hour spark plug and ignition service interval\u003c\/li\u003e\n\u003cli\u003eLong field days with no shop and no second generator\u003c\/li\u003e\n\u003cli\u003ePost-transport troubleshooting after rough road miles\u003c\/li\u003e\n\u003cli\u003eAny diagnosis of intermittent, heat-related shutdowns\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe generator is the charging station for the whole fleet. When it stops making spark, every aircraft on the trailer stops flying with it.\u003c\/p\u003e\n\n\u003chr\u003e\n\u003ch2\u003e💡 Why This Part Matters\u003c\/h2\u003e\n\u003cp\u003eNo spark, no charge. No charge, no flight.\u003c\/p\u003e\n\u003cp\u003eOperators think of the generator as a fuel-and-oil machine, then get blindsided by an ignition fault that behaves like a fuel problem. The pattern never changes: great in the morning, weird by mid-afternoon, perfect again the next day. That is a thermal failure, and on this engine the coil is the most common source of it. Knowing that pattern by heart points you at a small part instead of a major teardown.\u003c\/p\u003e\n\u003cp\u003eThis engine is electronically fuel injected, not carbureted, and that changes the diagnosis. The control board, injector, oxygen sensor and cable form a closed loop, and a misfire feeds bad data into it. Raw fuel at the oxygen sensor reads lean, the board adds fuel, and the fuel system takes the blame for an ignition problem. That trap has separated a lot of operators from a control board they did not need. Prove the spark first — quickest test in the sequence, and it eliminates the most expensive wrong answer.\u003c\/p\u003e\n\u003cp\u003eThe Ignition Coil delivers:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eReliable ignition through a full day of continuous charging\u003c\/li\u003e\n\u003cli\u003eHot restarts that catch immediately between rotations\u003c\/li\u003e\n\u003cli\u003eStable RPM and output as charger load steps on and off\u003c\/li\u003e\n\u003cli\u003eClean combustion that protects plug and oxygen sensor\u003c\/li\u003e\n\u003cli\u003eAccurate closed-loop fuel control, no misfire-driven drift\u003c\/li\u003e\n\u003cli\u003eA shelf spare that resolves this engine's common intermittent\u003c\/li\u003e\n\u003cli\u003eCorrect OEM fit for the RATO build with no improvising\u003c\/li\u003e\n\u003cli\u003eConfidence the next fault you chase is not this one\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRunning a worn ignition coil, operators risk:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLosing the generator mid-rotation and grounding the fleet\u003c\/li\u003e\n\u003cli\u003eBurning a spray window that will not reopen in time\u003c\/li\u003e\n\u003cli\u003eFouling spark plugs faster than you can replace them\u003c\/li\u003e\n\u003cli\u003eContaminating the oxygen sensor with unburned fuel\u003c\/li\u003e\n\u003cli\u003eChasing fuel system ghosts and replacing healthy parts\u003c\/li\u003e\n\u003cli\u003eCranking a hot engine until the starting battery is flat\u003c\/li\u003e\n\u003cli\u003eExhaust damage from unburned charge igniting downstream\u003c\/li\u003e\n\u003cli\u003eStanding in a field with full fuel and a dead machine\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor practical, hardworking operators, the value is simple:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProve the spark. Read the plug. Carry the spare. Keep it flying.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAres Acres stocks the RATO-build D12000i ignition coil, YC.DZ.GR000018, as a genuine OEM part with free and fast U.S. shipping — because an intermittent hot misfire is not a problem you solve slowly.\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 Ignition Coil (YC.DZ.GR000018)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDJI material number:\u003c\/strong\u003e YC.DZ.GR000018\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eComponent:\u003c\/strong\u003e High-tension ignition coil for the RATO engine build of the D12000i inverter generator\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 Engine ignition system, mounted at the flywheel on the RATO-build D12000i engine\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePrimary function:\u003c\/strong\u003e Transforms low-voltage primary current into the high-tension pulse that fires the spark plug on command from the EFI control board\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\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShips from:\u003c\/strong\u003e 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\n\u003cp\u003e\u003cstrong\u003eAlso searched as:\u003c\/strong\u003e YC.DZ.GR000018; DJI YC.DZ.GR000018; YC.DZ.GR000018 DJI Agras; DJI Agras T50 High-tension ignition coil for the RATO engine build of the D12000i inverter generator; T50 High-tension ignition coil for the RATO engine build of the D12000i inverter generator; DJI T50 high-tension ignition coil for the rato engine build of the d12000i inverter generator replacement; DJI Agras High-tension ignition coil for the RATO engine build of the D12000i inverter generator; High-tension ignition coil for the RATO engine build of the D12000i inverter generator OEM; High-tension ignition coil for the RATO engine build of the D12000i inverter generator replacement part\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDefinition:\u003c\/strong\u003e The High-tension ignition coil for the RATO engine build of the D12000i inverter generator (DJI material number YC.DZ.GR000018) is the genuine DJI OEM component fitted at Engine ignition system, mounted at the flywheel on the RATO-build D12000i 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.GR000018. 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.GR000018\u003c\/p\u003e\n\u003cp\u003eDJI YC.DZ.GR000018\u003c\/p\u003e\n\u003cp\u003eYC.DZ.GR000018 replacement\u003c\/p\u003e\n\u003cp\u003eDJI Agras YC.DZ.GR000018 part\u003c\/p\u003e\n\u003cp\u003eDJI Agras High-tension ignition coil for the RATO engine build of the D12000i inverter generator\u003c\/p\u003e\n\u003cp\u003eHigh-tension ignition coil for the RATO engine build of the D12000i inverter generator OEM\u003c\/p\u003e\n\u003cp\u003ehigh-tension ignition coil for the rato engine build of the d12000i inverter generator replacement\u003c\/p\u003e\n\u003cp\u003ehigh-tension ignition coil for the rato engine build of the d12000i inverter generator for sale\u003c\/p\u003e\n\u003cp\u003eDJI High-tension ignition coil for the RATO engine build of the D12000i inverter generator\u003c\/p\u003e\n\u003cp\u003eT50 High-tension ignition coil for the RATO engine build of the D12000i inverter generator\u003c\/p\u003e\n\u003cp\u003eDJI T50 High-tension ignition coil for the RATO engine build of the D12000i inverter generator\u003c\/p\u003e\n\u003cp\u003eDJI Agras T50 High-tension ignition coil for the RATO engine build of the D12000i inverter generator OEM\u003c\/p\u003e\n\u003cp\u003eT40 High-tension ignition coil for the RATO engine build of the D12000i inverter generator\u003c\/p\u003e\n\u003cp\u003eDJI T40 High-tension ignition coil for the RATO engine build of the D12000i inverter generator\u003c\/p\u003e\n\u003cp\u003eDJI Agras T40 High-tension ignition coil for the RATO engine build of the D12000i inverter generator 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 retailer\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\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 Ignition Coil?\u003c\/strong\u003e It is the genuine DJI ignition coil for the RATO engine build of the D12000i Multifunctional Inverter Generator, DJI material number YC.DZ.GR000018. It is a two-winding transformer that converts the engine's low-voltage supply into the high voltage needed to arc the spark plug gap under compression. The EFI control board switches it, setting spark timing from the ignition trigger signal.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does it fit?\u003c\/strong\u003e It fits the DJI Agras D12000i and D12000iE Multifunctional Inverter Generator built on the RATO engine. That generator is the ground charging station for DJI Agras T50, T40 and T30 flight batteries, so this part keeps the charging source for those aircraft running. It does not install on the ZONGSHEN engine build of the same generator.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMy generator is listed with two engine versions. How do I know I need the RATO part?\u003c\/strong\u003e DJI dual-sourced this generator, so the D12000iE ships in either a RATO or a ZONGSHEN engine build, and those builds carry separate material numbers through the ignition and fuel systems. The RATO engine assembly is YC.DZ.GR000020 and the ZONGSHEN engine assembly is YC.DZ.GR000011. Check the engine label before ordering, because this coil is the RATO part and is not interchangeable.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I tell the ignition coil is failing?\u003c\/strong\u003e The classic signature is a machine that starts and runs fine cold, then misfires, loses power or shuts down once fully hot, and restarts after it cools. You may also see hard hot starting, RPM sag when a charger picks up a pack, popping through the exhaust, or a fresh plug that fouls quickly. A weak yellow or intermittent spark instead of fat blue points the same way.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat causes an ignition coil to fail on a charging generator?\u003c\/strong\u003e Heat and vibration do most of the damage. Sustained under-cowl temperature degrades the insulation between the primary and secondary windings, and repeated heat cycling cracks the potting compound until carbon tracking paths form. Vibration fatigues terminals and leads while moisture and chemical exposure corrode the connector. An over-gapped plug raises voltage demand and shortens coil life.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I confirm the diagnosis before I order?\u003c\/strong\u003e Test hot, not cold. Put an inline spark tester between the coil and the plug and crank after the engine has reached operating temperature; a healthy coil gives a fat, consistent blue spark. Warming the coil with a heat gun and watching for dropout reproduces a thermal failure on the bench. Before condemning it, check plug gap, the low-tension connector, the stop circuit, and the trigger signal.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy does an ignition fault make my fuel system look broken?\u003c\/strong\u003e This engine runs a closed loop between the EFI control board, the injector, the oxygen sensor and the cable. A misfire pushes unburned fuel and extra oxygen into the exhaust, the sensor reads that as lean, and the board adds fuel to compensate. The engine then genuinely runs rich and fouls plugs, which sends operators shopping for parts that were never faulty.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does installation and verification look like?\u003c\/strong\u003e Cool the engine, disconnect the battery, remove the shroud, pull the plug boot by the boot rather than the lead, unplug the low-tension connector and unbolt the old coil. Fit the new coil, set any flywheel air gap the build calls for with a feeler gauge, keep the lead away from exhaust and sharp edges, and seat the connector fully. Verify with a spark test, then run under real charging load until fully hot.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhere can I buy this part in the USA?\u003c\/strong\u003e Ares Acres LLC is a U.S.-based authorized DJI Agras retailer stocking genuine DJI OEM generator parts including the RATO-build ignition coil, YC.DZ.GR000018. Orders ship with free and fast U.S. shipping, same-day dispatch and tracking, so an intermittent hot misfire does not turn into a week of downtime. If you are unsure whether your generator is the RATO or ZONGSHEN build, reach out before ordering.\u003c\/p\u003e","brand":"Ares Acres","offers":[{"title":"DJI T50","offer_id":52889852805440,"sku":"YC.DZ.GR000018","price":249.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/0159\/0848\/files\/IMG-0062.png?v=1785912402","url":"https:\/\/aresacres.com\/products\/dji-agras-t50-oem-d12000i-rato-generator-ignition-coil-yc-dz-gr000018","provider":"Ares Acres","version":"1.0","type":"link"}