{"product_id":"dji-agras-t50-oem-generator-oil-seal-a-yc-dz-gr000250","title":"DJI Agras T100 OEM D14000iE Zongshen Generator Oil Seal A (YC.DZ.GR000250)","description":"\u003cp\u003e\u003cstrong\u003eDJI Agras T100 OEM D14000iE Zongshen Generator Oil Seal A (YC.DZ.GR000250) — the shaft oil seal that keeps engine oil in and contaminants out in the DJI Agras Zongshen generator engine, DJI material number YC.DZ.GR000250. DJI generator oil seal, crankshaft oil seal, DJI Agras OEM engine seal.\u003c\/strong\u003e\u003c\/p\u003e\u003ch2\u003e🇺🇸 U.S.A. FIRST\u003c\/h2\u003e\u003cp\u003eAres Acres LLC is a U.S.-based authorized DJI Agras reseller supporting American agricultural drone operators with genuine DJI Agras OEM replacement parts, accessories, and field-ready inventory.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFREE \u0026amp; FAST Shipping is included for all U.S. customers.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eWe understand that every day of downtime can impact productivity, scheduling, and profitability. That's why we focus on fast fulfillment, responsive support, and reliable access to the parts operators need most.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWe use specialized technicians to verify and dispatch the D14000iE Zongshen Generator Oil Seal A ordered.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eParts like this one are the reason a grounded aircraft is a repair and not a write-off. A single component held in U.S. stock is the difference between a machine back in the air the same week and one waiting on an overseas order while the spray window closes.\u003c\/p\u003e\n\u003cp\u003eThat is why Ares Acres keeps hard-to-find OEM generator parts in stock and shipped fast within the U.S.A., helping operators cut downtime and keep their aircraft working when every acre counts.\u003c\/p\u003e\n\u003cp\u003eFor professional farmers, aerial applicators, and commercial drone operators running the DJI Agras D14000iE \/ DJI Agras T70P, this is the part that keeps a scheduled job on the calendar instead of on hold.\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 Compatibility Guarantee\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e🇺🇸 USA Compatibility Guarantee\u003c\/li\u003e\n\u003cli\u003e👍🏻 Satisfaction Guarantee\u003c\/li\u003e\n\u003cli\u003e💵 Money Back Guarantee\u003c\/li\u003e\n\u003cli\u003e📦 Same Day Shipping \u0026amp; Tracking\u003c\/li\u003e\n\u003cli\u003eDJI material number YC.DZ.GR000250 — verified against the official DJI Agras generator parts list\u003c\/li\u003e\n\u003cli\u003eSupplier-listed fitment: DJI Agras D14000iE generator (T100 \/ T70P), Zongshen engine\u003c\/li\u003e\n\u003cli\u003eBrand new condition — never installed, never run\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003e📦 Package Includes\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e1 × Generator Oil Seal A (YC.DZ.GR000250)\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003e🔧 Component Overview\u003c\/h2\u003e\u003cp\u003eThe DJI Agras OEM Generator Oil Seal A, DJI material number YC.DZ.GR000250, is a rotating-shaft oil seal that keeps engine oil in and dirt and moisture out at a shaft in the Zongshen engine shared across the D12000iE and D14000iE generators.\u003c\/p\u003e\u003cp\u003eFind out where the oil is actually coming from before you blame the seal. Oil escaping anywhere above a shaft seal runs down the case and collects at the lowest point, which is usually the seal, so a wet seal is often a witness rather than the culprit. Degrease the whole area, dry it, dust it with talc or foot powder or add a trace of UV dye to the oil, then run the generator under load and look again. A fresh wet track that starts above the seal is a gasket or a cover, not this part.\u003c\/p\u003e\n\u003cp\u003eCheck the crankcase breather before you order anything. A shaft seal is designed to hold oil against a lightly vented crankcase, not against pressure. If the breather is blocked with sludge, if its hose is kinked or crushed, or if the engine is overfilled, crankcase pressure builds and pushes oil past a perfectly good lip. Operators who fit a second seal into the same leak almost always skipped this check. Clear the breather path first and re test.\u003c\/p\u003e\n\u003cp\u003eA shaft seal leak has a signature you can read. Oil leaving a rotating lip gets flung outward, so it lays down a fan or a ring of fine spray around the seal and coats the surrounding case rather than tracking straight down in one line. A static joint weeps and runs. If the residue is a broad misted circle centered on the shaft, the seal is doing it. If it is a single narrow run from a joint line, look at that joint.\u003c\/p\u003e\n\u003cp\u003eInspect the shaft where the lip rode before you decide a new seal will cure it. Run a fingernail across the running surface. A polished band is fine. A visible groove worn into the shaft is not, because the new lip will sit in that same groove and leak again within hours. If you find a groove, stop and take the question to DJI service documentation rather than fitting a seal and hoping, since the fix at that point is about the shaft rather than about the seal.\u003c\/p\u003e\n\u003cp\u003eRead the seal itself once it is out. A serviceable lip is soft, flexible, and has a fine even wear band. A finished one is hard and glazed, cracked at the lip, split at the flex point, or has lost the garter spring that holds the lip against the shaft. Check whether the lip has been turned inside out, which happens when a seal is driven over a shoulder or a keyway without protection and is a common cause of a leak that shows up right after a repair.\u003c\/p\u003e\n\u003cp\u003eRule out the easy explanations that look like a seal failure. Oil pushed out through the filler cap or the dipstick tube, oil escaping from an overfilled crankcase, and fuel diluted oil that has thinned enough to pass a lip that would otherwise hold are all separate faults. Check the level on level ground, smell the oil for fuel, and confirm the dipstick and filler are seating properly. Those cost nothing to check and they change what you buy.\u003c\/p\u003e\n\u003ch2\u003e⚙️ Functional Purpose\u003c\/h2\u003e\u003cp\u003eThe seal keeps oil where it belongs at a rotating shaft. A hardened or worn seal weeps oil, drops the oil level, and lets grit in — a common service-interval leak point.\u003c\/p\u003e\u003cp\u003eRecord how the old seal sat before you disturb it. Note which way the lip faces, because a shaft seal is directional and a seal fitted backwards will leak from the day it goes in. Note also how deep the seal sits in its bore relative to the housing face, since many bores accept a seal at more than one depth and the correct one is the depth the engine was built with. A photograph and a note take a minute and remove all doubt at reassembly.\u003c\/p\u003e\n\u003cp\u003eClean before you extract. Wash the shaft, the housing face, and the surrounding case so nothing falls into the bore when the seal comes free, and wipe the shaft down to bare clean metal where the new lip will run. Dried spray residue and field dust sitting on a shaft will chew a new lip in the first hour of running, and once the seal is in you can no longer reach the surface it rides on.\u003c\/p\u003e\n\u003cp\u003eGet the old seal out without damaging what stays. Use a proper seal puller or a hooked tool that bites the seal case, and lever against a protected surface rather than against the shaft or against the sharp edge of the bore. A nick on the shaft becomes a leak path along the lip. A burr in the bore stops the new seal from going in square. If you drill the seal case to get a screw into it, expect swarf, and account for every piece before the engine is closed.\u003c\/p\u003e\n\u003cp\u003ePrepare the bore and the shaft before the new seal goes near them. Deburr and clean the bore, check it for scoring, and make sure the new seal will slide in without being forced sideways. Cover any keyway, thread, step, or splined section the seal has to pass over, because those edges will cut or invert a lip. A thin cone, an installation sleeve, or smooth tape wrapped over the sharp feature and removed once the lip is past is the difference between a seal that lasts and one that leaks immediately.\u003c\/p\u003e\n\u003cp\u003eFit it wet and fit it square. Wipe clean engine oil onto the lip and onto the shaft surface so the seal is never run dry, and drive it in with a tool that bears on the outer case across its full face, such as a correctly sized socket or a seal driver, never on the lip or on the inner edge. Push it in evenly, checking as you go that it is not going in cocked. A seal that starts crooked stays crooked and it will weep along the outside as well as the lip.\u003c\/p\u003e\n\u003cp\u003eDo not add sealant unless the design calls for it. Most shaft seals rely on an interference fit at the outer case, and a bead of silicone smeared into the bore can hold the seal off its seat, squeeze into the lip area, or break loose and travel into the oil. If the DJI or Zongshen procedure for this position specifies a sealant, use exactly what it specifies. If it does not, fit the seal dry on the outside and oiled on the lip.\u003c\/p\u003e\n\u003cp\u003eProve it before the generator goes back on a job. Set the seal to the depth you recorded, confirm it looks even all the way around, refill or check the oil to the correct level, then run the engine and let it reach normal temperature. Shut down, wipe the area completely dry, and run it again. A seal that is going to leak usually shows within the first heat cycle, and finding that in the shop is far better than finding it on a headland with a full tank waiting.\u003c\/p\u003e\n\u003ch2\u003e⚠️ Common Replacement Indicators\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOil weep or leak at the shaft\u003c\/li\u003e\n\u003cli\u003eDropping oil level\u003c\/li\u003e\n\u003cli\u003eOil film or residue around the seal\u003c\/li\u003e\n\u003cli\u003eHardened, cracked, or distorted seal\u003c\/li\u003e\n\u003cli\u003eContamination past the seal\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConfirm before you order:\u003c\/strong\u003e this part is DJI number YC.DZ.GR000250, listed for DJI Agras D14000iE generator (T100 \/ T70P), Zongshen engine. Match it to your parts diagram or the label on your existing part before ordering.\u003c\/p\u003e\u003cp\u003eA wet film that comes back within a day of every wash is an active leak rather than old residue, and it is the earliest honest sign. Residue from a leak that was fixed long ago stays put once you have cleaned it off. Anything that reappears is still moving. Clean it, note the date, and look again after a working day so you know whether you are watching a live fault or an old stain nobody wiped.\u003c\/p\u003e\n\u003cp\u003eDirt caked into a ring around the shaft is the same story told slowly. Oil misted out of a lip catches dust, chaff, and spray residue and builds a dark collar that packs harder as the season goes on. Operators often read that as normal grime because it accumulates too gradually to notice. If the collar is centered on the shaft and the rest of the case is comparatively clean, you have found the source.\u003c\/p\u003e\n\u003cp\u003eAn oil level that drops between services with no puddle under the machine is worth investigating even when nothing looks wet. A lip that leaks only at running speed and temperature can throw a fine mist that evaporates or blows away, leaving little on the ground. Track consumption between fills rather than trusting the absence of a drip, because a slow loss becomes a low oil event on the day nobody checks.\u003c\/p\u003e\n\u003cp\u003eOil that appears only after the engine stops, and never while it runs, is usually not this seal. A rotating lip leaks under motion and pressure. Oil that shows up on shutdown more often comes from a static joint, from oil draining back and finding a gasket, or from residue on a hot surface. Note when the drip happens, because the timing narrows the search faster than another hour of looking.\u003c\/p\u003e\n\u003cp\u003eGrit or water found on the oil side of the seal means it has failed in the direction operators forget about. A shaft seal keeps contamination out as well as oil in, and a lip that has hardened or lost its spring lets field dust and wash water into the engine. That damage does not announce itself as a leak. It shows up later as accelerated wear on bearings and running surfaces, which is why a hard, glazed seal gets replaced even when it is not visibly weeping.\u003c\/p\u003e\n\u003cp\u003eA brand new seal that leaks within the first few hours is almost never a faulty part. The usual causes, in the order they occur, are a lip inverted while passing a shoulder or a keyway, a seal driven in cocked or to the wrong depth, a grooved shaft the new lip cannot bridge, and crankcase pressure from a blocked breather. Work back through those four before ordering a second seal.\u003c\/p\u003e\n\u003ch2\u003e📐 Specifications\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eDJI Material Number:\u003c\/strong\u003e YC.DZ.GR000250\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePart:\u003c\/strong\u003e Generator Oil Seal A\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e DJI Agras D14000iE generator (T100 \/ T70P), Zongshen engine (supplier-listed fitment)\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eEngine:\u003c\/strong\u003e Zongshen\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e Brand new\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSeal Bore, Shaft Diameter, and Width:\u003c\/strong\u003e Not published in this listing. No inside diameter, outside diameter, or section width is given, so do not order this seal by measuring the old one and matching a generic size chart. Identify it by DJI material number YC.DZ.GR000250 against the label or packaging of the part you removed, or against the callout on the official generator parts breakdown for your unit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLip Material and Lip Count:\u003c\/strong\u003e Not stated by the supplier. Nothing in this listing names the elastomer or says whether the seal carries a single lip or an additional dust lip. That matters for chemical compatibility, so do not clean the new seal with solvent, fuel, or brake cleaner on the assumption that the material will tolerate it. Clean engine oil is the only thing that needs to touch the lip.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstalled Depth and Orientation:\u003c\/strong\u003e Not published here. Both are set by the engine, not by the part, so record them from the seal you are removing before it comes out. Note how far the seal face sits below the housing face and which way the lip points, and put the new one back the same way. Where DJI or Zongshen documentation gives a figure for this position, that figure takes precedence over your measurement.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePosition on the Engine:\u003c\/strong\u003e This listing identifies the component as Oil Seal A for the Zongshen engine. Where a parts breakdown lists more than one oil seal for the same engine, the letter and the material number together are what fix the position. Confirm which seal you are replacing against the diagram before ordering, rather than assuming that the one you can see is the one called A.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQuantity and Related Parts:\u003c\/strong\u003e This listing itemizes one Generator Oil Seal A, DJI material number YC.DZ.GR000250. No gasket, retainer, cover, fastener, or sealant is stated as included. Any cover that has to come off to reach the seal will normally want its own gasket or O ring, so check what your job needs and order it at the same time rather than stopping halfway through.\u003c\/p\u003e\n\u003ch2\u003e🧰 Fitment Verification Before You Order\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eThis listing is DJI material number YC.DZ.GR000250.\u003c\/strong\u003e That number, not the description, is what makes a part match. Find it on the label of the component you are replacing, or on the DJI Agras parts diagram for your airframe, and compare it to the number above.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRevision suffixes are still the same part.\u003c\/strong\u003e DJI labels sometimes carry a trailing revision such as \u003cem\u003e.01\u003c\/em\u003e, \u003cem\u003e.02\u003c\/em\u003e, or \u003cem\u003e.F\u003c\/em\u003e. Those denote a production revision, not a different component. Match the base number and disregard the suffix.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVisually similar is not the same.\u003c\/strong\u003e DJI Agras parts diagrams list components that look nearly identical but sit at different positions, carry different tolerances, or belong to a different airframe generation. Ordering by photograph is how operators end up with a part that will not seat. Order by number.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVerified fitment for this listing:\u003c\/strong\u003e DJI Agras D14000iE \/ DJI Agras T70P. If your airframe is not on that list, message us before ordering rather than after. We would rather answer a question than process a return, and so would you.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNot sure?\u003c\/strong\u003e Send us a photo of the old part and the label, along with your aircraft model and serial. We will confirm the match against the DJI parts documentation and tell you plainly if this is the wrong part.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e🛠️ Installation \u0026amp; Handling Notes\u003c\/h2\u003e\n\u003cp\u003eThese are general safe-practice notes for component replacement on DJI Agras airframes. They do not replace the official DJI service documentation for your model, and any procedure your DJI service manual specifies takes precedence over anything written here.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePower down completely and disconnect the flight batteries\u003c\/strong\u003e before removing any panel, connector, or fastener. Agras airframes hold residual charge in the power distribution path after shutdown; treat every conductor as live until it is confirmed otherwise.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePhotograph the assembly before you disturb it.\u003c\/strong\u003e Cable routing, connector orientation, and fastener lengths on Agras airframes are not interchangeable, and the D14000iE Zongshen Generator Oil Seal A is easier to fit correctly when you can see how the original sat.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTorque to DJI specification.\u003c\/strong\u003e Overtightening into composite and magnesium-alloy structure strips threads and cracks mounts; undertightening lets a component walk loose under rotor vibration. Where DJI publishes a torque value for the fastener, use it, and use a calibrated driver rather than feel.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCheck the mating surfaces and seals while you are in there.\u003c\/strong\u003e A component is only as good as what it seats against. Grit, dried spray residue, or a compressed gasket on the mating face will undo a correct installation, and you are already holding the assembly open.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTest before you spray.\u003c\/strong\u003e Power up on the ground, confirm the aircraft reports no new errors, run the relevant system check in DJI Agras Assistant or the remote controller diagnostics, and hover-test in a clear area before returning to a paid job.\u003c\/p\u003e\n\u003cp\u003eIf the work is outside your comfort level, have it done by a DJI-authorized service technician. The part cost is small next to the airframe.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e🚜 Necessary For\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eStopping a shaft oil leak\u003c\/li\u003e\n\u003cli\u003eEngine reseal \/ service\u003c\/li\u003e\n\u003cli\u003eReplacing a hardened or worn seal\u003c\/li\u003e\n\u003cli\u003eOil-loss diagnosis and repair\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe letter in the name is the whole point of it. This listing is Oil Seal A, and where an engine carries more than one shaft seal the letters mark different positions with different sizes and sometimes different lip arrangements. They look enough alike in a photograph that ordering by appearance is a coin toss. Match the letter and the material number together, and if your breakdown shows seals at more than one position, work out which one you are looking at before you buy.\u003c\/p\u003e\n\u003cp\u003eDo not confuse a rotating shaft seal with the static seals around it. An O ring, a paper or composite gasket, and a moulded cover seal all keep oil in as well, but none of them is designed to run against a turning shaft, and none of them will substitute here. If the surface the seal touches moves, you need a shaft seal. If the joint is metal to metal and static, you need a gasket or an O ring, and those carry their own numbers.\u003c\/p\u003e\n\u003cp\u003eOn the bench, a shaft seal is identified by its section rather than by its face. Look at the profile: the outer case and how it is finished, whether there is a garter spring behind the main lip, whether a secondary dust lip stands proud on the outboard side, and how tall the seal is through its width. Two seals that show the same diameter from the front can differ in every one of those, and each difference changes where it sits and what it holds back.\u003c\/p\u003e\n\u003cp\u003eThis seal lives in the generator engine, not in the aircraft. It is part of the Zongshen power unit that charges the aircraft, so no flight system reports on it and it does not appear anywhere on an airframe parts diagram. Operators looking for a leak on the aircraft itself should be looking at the spray plumbing and the pump instead. Oil on the ground under a generator and fluid under an airframe are different investigations.\u003c\/p\u003e\n\u003ch2\u003e💵 What Downtime Actually Costs\u003c\/h2\u003e\n\u003cp\u003eThe purchase price of a replacement part is almost never the real number. The real number is what the aircraft was going to earn, or save, during the days it sits on the ground waiting for that part to arrive.\u003c\/p\u003e\n\u003cp\u003eA commercial Agras airframe covers a meaningful block of acreage in a working day. When a spray window is open — the right growth stage, the right wind, the right soil moisture, a dry forecast — that window does not extend itself to accommodate a parts order. It closes. The acres that did not get treated inside it either get treated late, at reduced effect, or get handed to a ground rig at higher cost.\u003c\/p\u003e\n\u003cp\u003eAgainst that, the cost of a single OEM component is small, and the cost of holding one on the shelf before it fails is smaller still. Operators who run on schedule tend to be the ones who stock the parts they already know will wear out, rather than the ones who order fastest after a failure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFor the D14000iE Zongshen Generator Oil Seal A, that logic is straightforward:\u003c\/strong\u003e it is an inexpensive component relative to the DJI Agras D14000iE \/ DJI Agras T70P it serves, it is a known service item rather than a surprise, and having one in the truck or the shop converts a multi-day grounding into an afternoon of work.\u003c\/p\u003e\n\u003cp\u003eThis is also why we ship from U.S. stock rather than drop-shipping from overseas. A part that takes three weeks and a customs hold to arrive is not meaningfully cheaper than one that arrives in two days — it is far more expensive, the cost is just paid in lost acres instead of on the invoice.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e💡 Why This Part Matters\u003c\/h2\u003e\u003cp\u003eOil seals are small, cheap, and the usual suspect when oil shows up where it should not. Replace it during service and the leak stays gone — and the oil stays in the engine.\u003c\/p\u003e\n\u003cp\u003eWhile the seal is out, inspect the things that share its working life. Look at the bearing that supports the shaft, because play there loads the lip unevenly and is a common reason a seal that was fitted correctly still failed early. Check the shaft for a wear groove, for scoring, and for any burr picked up during the last repair. Check the cover or housing bore for ovality and for damage from a previous extraction. A seal is only as good as the geometry holding it.\u003c\/p\u003e\n\u003cp\u003eLook at the oil that came out and treat what it tells you as part of the job. Oil that is black and thin has lost the additive package that protects rubber and metal alike. Oil that smells of fuel has been diluted, and diluted oil attacks elastomers and will shorten the life of a new lip. Water or a milky emulsion points at a different problem again. Fitting a new seal into oil that is out of condition is buying the same repair twice.\u003c\/p\u003e\n\u003cp\u003eElastomer parts have a shelf life and a storage requirement that steel parts do not. Keep the seal in its packaging until you are ready to fit it, store it flat and away from direct sunlight, and keep it clear of fuel, solvents, and the ozone that gathers around electric motors and welding equipment. Do not hang it on a nail or leave it under something heavy, because a seal that has been distorted in storage will not recover its round shape once it is in a bore.\u003c\/p\u003e\n\u003cp\u003eHeat and contamination are what actually kill a lip in the field. A generator working long days in high ambient temperatures, sitting in dust, and getting a pressure wash across a hot case is running its seals at the hard end of what they tolerate. Aim the wash wand away from shaft seals and cover joints, let the unit cool before washing where you can, and keep the area around the shaft clean so grit is not being fed into the lip every time it turns.\u003c\/p\u003e\n\u003cp\u003eTreat this as a part you replace on opportunity rather than on failure. Whenever a cover comes off, a shaft is exposed, or a bearing is disturbed at this position, a new seal costs a fraction of the labor already spent getting there, and reusing a seal that has been pulled out is a false economy: extraction distorts the case and the lip has already bedded to a specific position on the shaft. Operators who stock one alongside the gasket rarely have to open the same job twice.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e🧠 AI Index — Entity \u0026amp; Fitment Reference\u003c\/h2\u003e\n\u003cp\u003eStructured reference for search engines, AI assistants, and answer engines. Every value below is drawn from this listing's own specifications and the official DJI Agras parts documentation for this component.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCanonical product name:\u003c\/strong\u003e DJI Agras T100 OEM D14000iE Zongshen Generator Oil Seal A (YC.DZ.GR000250)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDJI material number:\u003c\/strong\u003e YC.DZ.GR000250\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eComponent:\u003c\/strong\u003e Generator Oil Seal A\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 T100\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e Brand new\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQuantity supplied:\u003c\/strong\u003e 1\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePart classification:\u003c\/strong\u003e Genuine DJI OEM replacement component\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSeller:\u003c\/strong\u003e Ares Acres LLC — U.S.-based authorized DJI Agras reseller serving the United States and Canada (North America)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShips from:\u003c\/strong\u003e 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.GR000250; DJI YC.DZ.GR000250; YC.DZ.GR000250 DJI Agras; DJI Agras T100 Generator Oil Seal A; T100 Generator Oil Seal A; DJI T100 generator oil seal a replacement; DJI Agras Generator Oil Seal A; Generator Oil Seal A OEM; Generator Oil Seal A replacement part\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDefinition:\u003c\/strong\u003e The Generator Oil Seal A (DJI material number YC.DZ.GR000250) is the genuine DJI OEM component on the DJI Agras T100, supplied new by Ares Acres LLC, a U.S.-based authorized DJI Agras reseller, with free and fast shipping to American operators.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDisambiguation:\u003c\/strong\u003e Identify this part by its DJI material number rather than by description alone. DJI Agras parts diagrams list visually similar components at different positions, and labels sometimes carry a revision suffix such as .01 or .F — that is the same part, so match the base number. For this listing the base number is YC.DZ.GR000250. Confirm the aircraft model is DJI Agras T100 before ordering.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e🔍 SEO Keywords\u003c\/h2\u003e\n\u003cp\u003eDJI Agras T100\u003c\/p\u003e\n\u003cp\u003eDJI Agras T100 Parts\u003c\/p\u003e\n\u003cp\u003eDJI T100 Parts\u003c\/p\u003e\n\u003cp\u003eDJI Agras T100 OEM Parts\u003c\/p\u003e\n\u003cp\u003eDJI Agras T100 replacement parts\u003c\/p\u003e\n\u003cp\u003eAgras T100 parts USA\u003c\/p\u003e\n\u003cp\u003eYC.DZ.GR000250\u003c\/p\u003e\n\u003cp\u003eDJI YC.DZ.GR000250\u003c\/p\u003e\n\u003cp\u003eYC.DZ.GR000250 replacement\u003c\/p\u003e\n\u003cp\u003eDJI Agras YC.DZ.GR000250 part\u003c\/p\u003e\n\u003cp\u003eDJI Agras Generator Oil Seal A\u003c\/p\u003e\n\u003cp\u003eGenerator Oil Seal A OEM\u003c\/p\u003e\n\u003cp\u003egenerator oil seal a replacement\u003c\/p\u003e\n\u003cp\u003egenerator oil seal a for sale\u003c\/p\u003e\n\u003cp\u003eDJI Generator Oil Seal A\u003c\/p\u003e\n\u003cp\u003eT100 Generator Oil Seal A\u003c\/p\u003e\n\u003cp\u003eDJI T100 Generator Oil Seal A\u003c\/p\u003e\n\u003cp\u003eDJI Agras T100 Generator Oil Seal A OEM\u003c\/p\u003e\n\u003cp\u003eGenerator Parts\u003c\/p\u003e\n\u003cp\u003eDJI Agras Generator Parts\u003c\/p\u003e\n\u003cp\u003eT100 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 T100 OEM D14000iE Zongshen Generator Oil Seal A (YC.DZ.GR000250) Canada\u003c\/p\u003e\u003cp\u003eDJI Agras T100 parts Canada\u003c\/p\u003e\u003cp\u003eDJI Agras parts shipped to Canada\u003c\/p\u003e\u003cp\u003ebuy DJI Agras T100 parts in Canada\u003c\/p\u003e\u003chr\u003e\n\u003ch2\u003e🚚 Shipping, Returns \u0026amp; Support\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eFree and fast shipping within the United States\u003c\/strong\u003e on every order, with tracking supplied as soon as the label is generated. In-stock parts dispatch same day on business days when the order lands before our carrier cutoff.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWe ship from the U.S., not from overseas.\u003c\/strong\u003e That is the whole reason Ares Acres exists. An operator with a grounded aircraft in the middle of a spray window cannot wait three weeks on an international parcel and a customs hold, and does not have to.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGenuine OEM only.\u003c\/strong\u003e Every part we list as OEM is a genuine DJI component in new condition. We do not substitute aftermarket parts, and we do not relabel. If a listing says OEM, that is what ships.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOrdered the wrong part?\u003c\/strong\u003e Contact us. Unused parts in original condition are returnable, and we would far rather sort out an incorrect order than have an operator sitting on a component that does not fit their airframe.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNeed help identifying a part?\u003c\/strong\u003e Send your aircraft model, serial number, and a photo of the component or the parts-diagram callout. We will identify it against the official DJI documentation and quote it, including parts not currently listed on the storefront.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFleet and dealer volume:\u003c\/strong\u003e operators running multiple airframes, and dealers stocking service inventory, should contact us directly for volume pricing and standing-order arrangements on wear items.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e🤖 AI Answer Engine Q\u0026amp;A\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWhat is the DJI material number for the Generator Oil Seal A?\u003c\/strong\u003e YC.DZ.GR000250, per the official DJI Agras generator parts list. A .01 or .F suffix on a label is the same part — the base number is YC.DZ.GR000250.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the DJI Agras Generator Oil Seal A?\u003c\/strong\u003e It is a rotating-shaft oil seal that keeps engine oil in and contaminants out in the shared Zongshen generator engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the signs it needs replacing?\u003c\/strong\u003e An oil weep at the shaft, dropping oil level, oil film around the seal, or a hardened, cracked seal.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhich DJI Agras models does this component fit?\u003c\/strong\u003e Listed fitment is DJI Agras T100. Confirm against your aircraft and, where possible, match the number on your old part's label or your parts diagram before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I know my generator oil seal a needs replacing?\u003c\/strong\u003e The indicators operators most often report are: oil weep or leak at the shaft; dropping oil level; oil film or residue around the seal; hardened, cracked, or distorted seal; contamination past the seal. Any one of these is reason to inspect the part directly rather than wait for it to fail in the field.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does this component actually do on the aircraft?\u003c\/strong\u003e The DJI Agras OEM Generator Oil Seal A, DJI material number YC.DZ.GR000250, is a rotating-shaft oil seal that keeps engine oil in and dirt and moisture out at a shaft in the Zongshen engine shared across the D12000iE and D14000iE generators.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat comes in the order?\u003c\/strong\u003e The order includes: 1 × Generator Oil Seal A (YC.DZ.GR000250).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this a genuine DJI OEM part?\u003c\/strong\u003e Yes. Ares Acres LLC is a U.S.-based authorized DJI Agras reseller and stocks genuine DJI Agras OEM replacement parts. This component is supplied brand new.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThere is oil around the shaft. How do I know the seal is leaking and not something above it?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eClean the whole area with degreaser, dry it, and dust it with talc or foot powder, or put a trace of UV dye in the oil. Run the generator under load, then look at where the fresh oil starts. Oil from a shaft seal is flung outward and lays a fine ring or fan around the shaft. Oil from a gasket or a cover runs down in a narrow track from the joint and simply collects at the seal because that is the low point.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eI fitted a new seal and it leaked straight away. What did I do wrong?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAlmost always one of four things. The lip was turned inside out passing over a keyway, a step, or a thread. The seal went in cocked or to the wrong depth. The shaft has a groove worn where the old lip ran, so the new lip cannot seal against it. Or the crankcase breather is blocked and pressure is pushing oil past a lip that is otherwise fine. Check the breather first because it costs nothing, then pull the seal and look at the lip.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe shaft has a groove worn into it. Will a new seal fix the leak?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eUsually not on its own. The new lip sits in the same track the old one wore and has nothing to seal against, so the leak returns quickly. A groove means the repair is now about the shaft surface rather than about the seal, and the correct answer for this engine is in the DJI and Zongshen service documentation rather than in a general workshop trick. Look at the shaft before you order, not after the seal is in.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhich way round does the seal go, and does it matter?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eIt matters completely, and the answer comes from the part you removed rather than from us. A shaft seal is directional: the main lip faces the oil it is holding back, and fitted the other way it will leak from the first run. Before you extract the old one, note which way the lip points and how deep the seal sits in its bore, and photograph it. That single photograph settles the question at reassembly when the engine is apart and memory is not reliable.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShould I put sealant on the outside of the seal before I drive it in?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eOnly if the DJI or Zongshen procedure for this position says to. A shaft seal normally holds in its bore by interference, and silicone smeared into the bore can stop it seating square, work its way onto the lip, or break away later and circulate in the oil. Fit it dry on the outer case and oiled on the lip unless the documentation says otherwise, and make sure the bore is clean and free of burrs first.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs Oil Seal A the same part as the other oil seal on this engine?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eNo. The letter marks a different position, and seals at different positions differ in diameter, width, and sometimes in lip arrangement even when they look alike side by side. This listing is DJI material number YC.DZ.GR000250. Check your generator parts breakdown to see which seal sits where you are working, and match both the letter and the number before ordering rather than after.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I reuse a seal I removed intact while doing another job?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eNo, and it is not worth the risk. Getting a seal out distorts the outer case even when the lip looks perfect, so it will no longer grip the bore the way it did, and the lip has already worn a track that matches its old position on the shaft to a fraction of a millimeter. Refitted, it leaks. A seal is a consumable the moment it is disturbed, which is why operators order one with any job that exposes this shaft.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the DJI Agras T100 OEM D14000iE Zongshen Generator Oil Seal A (YC.DZ.GR000250) also available in Canada?\u003c\/strong\u003e Yes. Ares Acres ships this T100 OEM D14000iE Zongshen Generator Oil Seal A to Canada from its Albuquerque, New Mexico inventory with free shipping included, and Canadian customers see prices and check out in Canadian dollars (CAD).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes Ares Acres ship DJI Agras T100 parts to Canadian operators?\u003c\/strong\u003e Yes — Ares Acres is a U.S.-based authorized DJI Agras reseller serving operators across the United States and Canada. Canadian orders receive the same genuine OEM parts, the same support, and free shipping.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhere can I buy one in the USA?\u003c\/strong\u003e Ares Acres, a U.S.-based authorized DJI Agras reseller, carries Generator Oil Seal A YC.DZ.GR000250 with free and fast U.S. shipping. 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