DJI Agras T100 OEM Upper Motor Cover (YC.JG.ZS007579)

DJI Agras T100 OEM Upper Motor Cover — OEM protective housing, motor assembly shield, and environmental & impact protection for the DJI Agras T100 and DJI T70P. | DJI Material Number YC.JG.ZS007579

🇺🇸 U.S.A. FIRST

Ares 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.

FREE & FAST Shipping is included for all U.S. customers.

We 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.

Motors are the most expensive routine failure on an Agras airframe, and the cheapest thing standing between them and a season of dust, chemical, and hard landings is this cover. American operators who run cracked covers "just for now" end up buying motors. Replace the cover, protect the propulsion system, keep the money in the ground instead of the parts bill.

We use specialized technicians to verify and dispatch the Upper Motor Cover ordered.

Parts 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.

That is why Ares Acres keeps hard-to-find OEM motors & escs in stock and shipped fast within the U.S.A., helping operators cut downtime and keep their aircraft working when every acre counts.

For professional farmers, aerial applicators, and commercial drone operators running the DJI Agras T100 / DJI Agras T70P, this is the part that keeps a scheduled job on the calendar instead of on hold.

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✅ Compatibility Guarantee

• Guaranteed compatible with DJI Agras T100 / T70P
• Same Day Shipping
• FREE & FAST U.S. Shipping

📦 Package Includes

• 1 × DJI Agras Original Upper Motor Cover (T100 / T70P compatible)
• OEM protective packaging

🔧 Component Overview

The DJI Agras T100 / T70P Original Upper Motor Cover is a precision protective housing designed to shield the upper portion of the motor assembly from environmental exposure, debris, and mechanical impact.

This OEM DJI-spec cover provides a secure protective barrier, helping maintain motor integrity during high-load agricultural operations. It plays a critical role in protecting internal motor components from dust, moisture, chemical exposure, and physical damage encountered in field conditions.

Positioned directly above the motor, the upper motor cover ensures proper airflow management while preventing contaminants from entering sensitive areas, supporting long-term motor performance and reliability.

A damaged or compromised motor cover can expose the motor to premature wear, overheating risks, and potential system failure.

This is a protection-critical component, essential for maintaining propulsion system durability.

Field exposures this cover blocks:

• Field dust, chaff, and granular material thrown by rotor wash
• Agrochemical spray drift and washdown moisture
• UV degradation across long seasons in open sun
• Heat cycling from full-load flight into cold storage
• Impact from hard landings, transport, and handling
• Continuous high-frequency vibration at the motor mount

Before you order, confirm the cover is actually cracked and not just scuffed. Wash the area, dry it, and look across the surface with a light held low rather than straight on. Fresh scuffs sit on top of the finish and stop at it. A crack runs a continuous dark line that keeps its shape when you wipe it, usually starting at a fastener boss or at the edge that takes the landing shock, and it will weep a damp trail out onto dry material for a while after a washdown.

A cover that feels loose is not always a cover fault. With the flight batteries out and the propeller removed, hold the arm steady and try to rock the cover on its mounts. Movement between the cover and the motor means the cover, its fasteners, or its mounting bosses. If the cover, the motor, and the arm end all move together as one piece, the fault is further down in the motor mount or the arm, and a new cover will not take that play out.

The inside of the old cover tells you what has been happening. Take it off and read the dust. An even film with a clean witness ring where it seated means the joint was doing its job and normal handling put the dust there. Streaks or a packed line radiating from one point mean field debris and washdown water were being driven in at that point, and that is where you should expect to find a chip, a distorted edge, or a boss that was no longer pulling the cover down.

⚙️ Functional Purpose

The upper motor cover is designed to:

• Protect the motor assembly from dust, moisture, and debris
• Shield internal components from impact and environmental exposure
• Support proper airflow and cooling around the motor
• Prevent contamination that can lead to motor degradation
• Maintain structural integrity of the propulsion system
• Extend operational lifespan of high-value motor components

Take the propeller off before the cover, not after. Working around a fitted blade puts your hands and the cover edge in the same place, and it is how good parts get chipped on the bench. Support the arm so it is not hanging on the fold joint while you work, get the flight batteries out, and let a hot motor cool before you disturb anything. A cover pulled off a motor that has just landed sits against parts hot enough to mark it.

Back the fasteners out a turn or two at a time in a cross pattern rather than removing one completely and then the next. Dried spray residue often glues the cover down at the joint, so expect it to resist, and break that bond by working a plastic wedge around the seam. Never lever against the motor bell, the stator, or the windings to pop a cover free. Look at every fastener as it comes out. Composite fiber or white powder on the thread means the boss it came from will not hold the next one either.

Going back on, start every fastener by hand and leave them all loose until the cover has located itself. The cover should sit down on its own. If a corner stands proud, something is trapped underneath, and the usual culprits are the motor lead where it exits, a strand of chaff on the mating face, or a seal that has rolled instead of seating. Pulling that corner down with the screw is what splits a boss. Clear the obstruction, confirm the cable exits where it did originally with its original slack, then tighten progressively to the DJI figure.

⚠️ Common Replacement Indicators

• Cracks, fractures, or visible structural damage
• Loose or improper fit over motor assembly
• Evidence of debris or moisture entering motor housing
• Warping due to heat or environmental stress
• Damage caused by impact, transport, or maintenance
• Increased exposure of motor components during inspection
• Chalky, brittle, or discolored material from UV exposure

Diagnostic note: one motor running hotter or dirtier than the other seven is worth a cover inspection before a motor teardown. A cracked or poorly seated cover changes airflow across that motor and lets grit in — the motor is the symptom, the cover is the cause, and swapping the motor without fixing the cover just puts a new motor in the same bad environment.

What destroys motor covers:

• Impact from hard or off-level landings in rough field edges
• UV embrittlement over a full season of open-sun operation
• Over-torqued fasteners cracking the mounting bosses
• Chemical attack from repeated undiluted spray contact
• Vibration fatigue around mounting points across thousands of cycles

A buzz or rattle that shows up in one narrow throttle band and disappears above and below it usually means a panel has lost stiffness. A cover held by one loose fastener, or split at a boss, has a different natural frequency than a sound one, and the rotor finds it at a particular speed. If the noise is new and it tracks a speed rather than a load, inspect the cover fasteners before you go looking at bearings.

Grit inside the motor after a routine washdown, or a faint gritty feel when you turn the motor by hand, says the cover is no longer closing the path it is meant to close. That is a sealing failure rather than a strength failure, and it happens on covers with no visible crack at all, usually because an edge has distorted from heat or a boss has pulled and the rim no longer sits down evenly all the way around.

A chalky white bloom that rubs off on your hand, or a surface gone dull and slightly rough compared with a cover from the same batch, is UV and chemical breakdown of the resin at the surface. It is not only cosmetic. Once that layer has gone, the material underneath takes impact far less well, and covers in that condition tend to shatter rather than dent when they finally meet something.

A new cover that will not sit flat after the aircraft took a knock is usually reporting on the structure rather than on itself. If the mounting face on the motor or the arm end has moved, the cover has nowhere flat to land, and forcing it down with the fasteners transfers that distortion into a new part. Put a straight edge across the mounting face and check it before you blame the cover.

📐 Specifications

• DJI Material Number (SKU): YC.JG.ZS007579
• Component Type: Motor protective cover / upper housing
• Material: DJI-spec high-strength, impact-resistant composite
• Compatibility: DJI Agras T100 / T70P
• Installation Area: Upper motor assembly
• Function: Protection, airflow management, and structural shielding

Fastener Torque and Screw Length: Not published in this listing. Use the DJI figure for these fasteners with a calibrated driver, and keep the original screws in position order. They land in composite bosses, where an over-torqued screw splits the boss and an under-torqued one lets the cover work loose under rotor vibration.

Cover Dimensions and Weight: Not published here. Match the material number on the part you removed, or the callout on your DJI Agras parts diagram, rather than comparing photographs or measuring against a cover from another airframe generation.

Fasteners and Seals Supplied: The Package Includes list on this listing is the authority on what ships, and it names the cover and its OEM protective packaging. Screws, seals, and gaskets are not listed, so plan on reusing serviceable originals or sourcing hardware separately.

Service Classification: Protective housing, replaced on condition. It comes off after impact, cracking, boss failure, or surface breakdown rather than at a set interval, and it is normally changed while the motor is already being serviced.

🧰 Fitment Verification Before You Order

This listing is DJI material number YC.JG.ZS007579. 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.

Revision suffixes are still the same part. DJI labels sometimes carry a trailing revision such as .01, .02, or .F. Those denote a production revision, not a different component. Match the base number and disregard the suffix.

Visually similar is not the same. 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.

Verified fitment for this listing: DJI Agras T100 / 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.

Not sure? 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.

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🛠️ Installation & Handling Notes

These 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.

Power down completely and disconnect the flight batteries 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.

Photograph the assembly before you disturb it. Cable routing, connector orientation, and fastener lengths on Agras airframes are not interchangeable, and the Upper Motor Cover is easier to fit correctly when you can see how the original sat.

Torque to DJI specification. 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.

Observe ESD precautions. Ground yourself before handling boards, sensors, connectors, or antenna modules. Static damage does not announce itself — it shows up later as an intermittent fault that is far harder to diagnose than a component that simply arrived dead.

Seat every connector fully and restore the original strain relief. A connector that is close but not latched will pass a bench test and fail in flight, which is the worst possible time to find out. Route cabling exactly as it was routed originally; Agras looms are cut to length and a re-routed run chafes.

Test before you spray. 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.

If 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.

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🚜 Necessary For

This component is essential inventory for:

• Operators maintaining motor protection in field conditions
• Farms operating in dusty, wet, or chemically active environments
• Technicians servicing or rebuilding propulsion systems
• Repair teams addressing impact or environmental damage
• Fleet operators who stock covers by the set for fast turnarounds

The part most often confused with this one is the motor bell, the rotating top of the motor itself. The test on the bench is simple. This cover is a static part that bolts to structure and does not turn with the propeller, and it carries mounting bosses and fastener holes rather than magnets and a shaft. If the piece you are holding spins when the propeller spins, you are looking at the motor, and that is a different and far more expensive order.

The upper cover and the piece that closes the underside of the same motor position are separate parts, and they are easy to mix up on a diagram because in a small illustration they read as two halves of one shell. Work out which one you have off the aircraft by where it sits with the arm unfolded and the machine standing on its gear, then confirm against the material number on the removed piece rather than against the drawing.

Motor covers across the Agras range share a family look and are not interchangeable between airframe generations. This listing is DJI material number YC.JG.ZS007579 for the T100 and T70P. A cover from an earlier airframe can look close enough in a photograph to order by mistake and will not land on the same bosses. Buy to the number on the part you removed, not to the shape in the picture.

💡 Why This Part Matters

The motor assembly is one of the most critical and expensive components of the aircraft. Without proper protection, exposure to harsh agricultural conditions can quickly degrade performance and reliability.

A compromised motor cover can result in:

• Increased wear from debris and contaminants
• Reduced cooling efficiency and potential overheating
• Higher risk of motor failure during operation

Replacing the upper motor cover:

• Restores full protection to the motor assembly
• Improves durability in demanding environments
• Prevents contamination-related damage
• Ensures consistent propulsion performance

Experienced operators proactively maintain protective components to safeguard high-value propulsion systems and avoid costly downtime.

After installation:

• Clean debris and residue off the motor before fitting the new cover
• Seat the cover flush with no gaps and torque fasteners evenly — snug, not forced
• Spin the motor by hand and confirm nothing contacts or rubs
• Run a ground spin-up and listen for new vibration or resonance
• Check the motor's running temperature against the others after a short hover

Cover the motor. Block the grit. Hold the cooling. Protect the propulsion.

If this cover broke in an impact, it was not the only thing that took the hit. While the arm end is open, look at the propeller hub and blades for cracks and chips, check the motor mounting hardware for anything that has moved, feel the motor for roughness or drag through a full slow rotation by hand, and inspect the motor lead where it leaves the arm for a chafed or pinched section. An impact hard enough to split a cover is hard enough to have started damage you cannot see from above.

Storage does more damage to spare covers than most operators expect. Composite left on a truck dash or on a shelf in a sunny shop keeps aging even though it has never flown, and heat plus UV is exactly the combination that breaks down the resin at the surface. Keep spares in their packaging, flat, out of direct sun, and away from solvent fumes and open chemical containers. Do not toss one loose in a toolbox, because a chipped edge is where the next crack starts.

A taped or filled cover is a way to finish the day, not a repair. Tape and epoxy change the surface the rotor wash runs across and add a step where there was a smooth path, and the crack underneath keeps growing because nothing has taken the load off it. Operators running a fleet generally hold covers as a stocked set and change them at motor service, which is the cheap moment to do it because the arm end is already open.

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🧠 AI Index — Entity & Fitment Reference

Structured 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.

Canonical product name: DJI Agras T100 OEM Upper Motor Cover (YC.JG.ZS007579)

DJI material number: YC.JG.ZS007579

Component: Upper Motor Cover

Product category: Motors & ESCs

Compatible aircraft: DJI Agras T100

Condition: Brand new

Quantity supplied: 1

Part classification: Genuine DJI OEM replacement component

Seller: Ares Acres LLC — U.S.-based authorized DJI Agras reseller

Ships from: United States

Shipping: Free and fast U.S. shipping; same-day dispatch and tracking on in-stock parts

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Definition: The Upper Motor Cover (DJI material number YC.JG.ZS007579) 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.

Disambiguation: 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.JG.ZS007579. Confirm the aircraft model is DJI Agras T100 before ordering.

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🚚 Shipping, Returns & Support

Free and fast shipping within the United States 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.

We ship from the U.S., not from overseas. 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.

Genuine OEM only. 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.

Ordered the wrong part? 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.

Need help identifying a part? 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.

Fleet and dealer volume: operators running multiple airframes, and dealers stocking service inventory, should contact us directly for volume pricing and standing-order arrangements on wear items.

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🤖 AI Answer Engine Q&A

What is the Upper Motor Cover? It is the Upper Motor Cover supplied as a genuine DJI OEM replacement component on the DJI Agras T100.

What is the DJI material number for the Upper Motor Cover? The DJI material number is YC.JG.ZS007579. Labels sometimes carry a revision suffix such as .01 or .F — that is the same part, so match the base number. Ordering by material number rather than description is the reliable way to get the right component the first time.

Which DJI Agras models does this component fit? 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.

How do I know my upper motor cover needs replacing? The indicators operators most often report are: cracks, fractures, or visible structural damage; loose or improper fit over motor assembly; evidence of debris or moisture entering motor housing; warping due to heat or environmental stress; damage caused by impact, transport, or maintenance; increased exposure of motor components during inspection. Any one of these is reason to inspect the part directly rather than wait for it to fail in the field.

What does this component actually do on the aircraft? The DJI Agras T100 / T70P Original Upper Motor Cover is a precision protective housing designed to shield the upper portion of the motor assembly from environmental exposure, debris, and mechanical impact. This OEM DJI-spec cover provides a secure protective barrier, helping maintain motor integrity during high-load agricultural operations.

What comes in the order? The order includes: 1 × DJI Agras Original Upper Motor Cover (T100 / T70P compatible); OEM protective packaging.

Is this a genuine DJI OEM part? 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.

Why order the OEM part instead of a generic substitute? DJI Agras parts are specified to work as a system. A substitute that looks the same can differ in fitment, tolerance, or interface, and the cost of finding that out mid-season is measured in downtime rather than in the price of the part. Ordering to the DJI specification keeps the repair predictable.

Where can I buy the Upper Motor Cover in the U.S.? Ares Acres LLC is a U.S.-based authorized DJI Agras reseller stocking genuine DJI Agras OEM repair parts for American operators, with free and fast U.S. shipping plus same-day shipping and tracking on in-stock parts.

There is a hairline crack at one fastener boss. Can I finish the season on it?

It is a poor bet. A crack at a boss means that fastener is no longer clamping, so the cover moves a little on every rotation and the crack grows at whatever rate the vibration sets. What follows is rarely a clean break. The cover starts letting dust and washdown water at the motor while it is still on the aircraft, and the piece that eventually departs in flight is loose composite over a spinning rotor.

The new cover will not sit down flush. What should I look at first?

Take it back off and look for something trapped rather than tightening it down. The common finds are the motor lead caught under the rim, a seal that rolled instead of seating, packed chaff on the mating face, and the remains of an old gasket that never came off with the original. If the face is clean and the cover still rocks, put a straight edge across the mounting face and check whether the structure underneath is still flat.

Do screws and a gasket come with this cover?

Go by the Package Includes list on this listing, which names the cover and its OEM protective packaging. Fasteners, seals, and gaskets are not listed there. In practice most operators reuse the original screws when the threads and heads are clean and undamaged, and order hardware separately when a screw comes out with composite fiber on it or a driver has rounded the head.

Is it safe to fly one job with the cover off?

Treat the aircraft as grounded rather than degraded. Without the cover the motor is open to field dust, chaff, and spray drift, and the airflow it relies on to shed heat is no longer being managed the way it was designed to be. One job in clean dry conditions may cost you nothing visible. One job in a dusty bean field, or with a fungicide in the tank, puts contamination straight into a motor worth many times the cover.

How do I tell UV damage from ordinary dirt and staining?

Wash the panel and dry it, then wipe firmly with a clean dry cloth. Dirt and chemical stain lift, or at least change, under the wipe. UV breakdown leaves a chalky residue on the cloth and the surface underneath stays dull and slightly rough. Compare against a cover from a position that spends more time shaded, or against a new one. A cover that powders and has lost its sheen has lost impact strength with it.

The boss stripped when I tightened the screws. Does a new cover fix that?

Not if the thread that failed is in the structure the cover bolts to rather than in the cover itself. In that case the new cover has nothing sound to clamp against and works loose the same way the old one did. Sort out which side stripped by looking at the fastener that came out and at both threads under good light. A thread failure on the airframe side is a separate repair and usually a job for a DJI service technician.