DJI Agras T100 OEM Four-Eyed Vision Cable Cover Plate (YC.JG.MQ003804)

DJI Agras T100 Parts | DJI Agras T100 OEM | DJI Agras OEM Parts | Four-Eyed Vision Cable Cover Plate | Vision Sensor Wiring Cover | Cable Protection Housing | DJI Material Number YC.JG.MQ003804

DJI Material Number YC.JG.MQ003804 — this is the official DJI part number for this exact component. Match it to your parts diagram or the label on the original part to confirm fitment; factory labels may carry a revision suffix, which is the same part.

🇺🇸 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.

We use specialized technicians to verify and dispatch the Four-Eyed Vision Cable Cover Plate 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 body shells & covers 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, this is the part that keeps a scheduled job on the calendar instead of on hold.

Ares 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.

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✅ DJI Agras T100 Compatibility Guarantee

• 🇺🇸 USA Compatibility Guarantee
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📦 Package Includes

• 1 × DJI Agras T100 OEM Four-Eyed Vision Cable Cover Plate
• OEM Four-Eyed Vision system cable protection cover
• Vision sensor wiring protective housing
• Factory-style cable routing protection component
• Direct-fit OEM replacement part
• OEM protective packaging

🔧 Component Overview

The DJI Agras T100 OEM Four-Eyed Vision Cable Cover Plate is a protective structural component designed to shield and secure the aircraft's Four-Eyed Vision system wiring while maintaining proper OEM cable routing throughout demanding agricultural operations.

This cover plate may appear small, but it plays an important role in protecting one of the most sensitive areas of the aircraft: the wiring and cable path connected to the vision system. The Four-Eyed Vision system helps support environmental awareness, obstacle detection, positioning, and overall aircraft confidence during field operations.

Designed specifically for the DJI Agras T100, this OEM cover plate helps protect vision-system cables from vibration, impact, abrasion, dust, moisture, chemical overspray, and handling damage that can occur during normal agricultural use.

Commercial agricultural drones work in real-world field conditions. They are not sitting in clean indoor environments. They are exposed to dirt roads, chemical residue, fertilizer dust, humidity, transport vibration, hot sun, rough handling, and repeated daily deployment.

During normal operation, the aircraft may be used for:

• Crop spraying
• Liquid fertilizer application
• Herbicide treatments
• Fungicide applications
• Insecticide spraying
• Orchard operations
• Vineyard treatments
• Specialty crop applications
• Field mapping
• Precision agriculture missions
• Daily commercial deployments
• Fleet-based service operations

In each of these environments, cable protection matters. A loose, cracked, missing, or damaged cover plate can leave wiring exposed to unnecessary wear. Over time, exposed cables may experience rubbing, vibration fatigue, moisture contact, or contamination. What begins as a small protective cover issue can eventually become a larger electrical or sensor-related repair.

The OEM Four-Eyed Vision Cable Cover Plate helps maintain:

• Proper cable positioning
• Protected vision-system wiring
• Reduced cable movement
• Improved electrical protection
• OEM structural fitment
• Cleaner aircraft appearance
• Reduced long-term wear
• Better field reliability
• More professional maintenance standards
• Increased confidence during commercial deployment

Manufactured to DJI OEM specifications, this cover plate is designed to integrate properly with the aircraft body and surrounding Four-Eyed Vision components. It helps restore factory-style protection while supporting long-term aircraft readiness.

For operators who rely on their T100 to generate revenue, small protective components like this should not be overlooked. Keeping covers, brackets, housings, and cable guards in proper condition helps protect the larger systems that keep the drone flying.

The plate itself carries evidence, and most people throw it away without reading it. Turn the removed plate over and look at the inner face along the cable path. A polished patch, a groove, or a worn-through spot there is the other half of the shiny band on the cable jacket, and it tells you which surface was doing the rubbing and from which direction. A chipped or broken edge matters just as much, because a fresh sharp edge on a composite plate becomes the next chafe point the moment the cover goes back on over a moving loom.

Sort the fault by when it appears before you touch anything. A vision warning that shows up on a cold, damp morning and clears as the aircraft warms through is moisture in a connector or a wet cable run, not a broken conductor. One that appears immediately after a wash is water driven under the cover by the hose. One that only turns up in flight or after a rough transport leg is mechanical and lives in the routing. Three different faults produce the same warning, and the timing is what separates them.

If the aircraft tells you which direction is degraded, use that. A fault confined to one direction points at that sensor or the branch of the harness serving it, and the cable run under this plate is worth inspecting before anything is unplugged. A fault affecting several directions at once points further upstream, at a shared connector or a common feed, and a cover plate is unlikely to be the whole story. Narrowing it this way costs nothing and stops an expensive module being ordered on a hunch.

Photograph the area before your hand goes near the loom. Get the exact routing, which side of each rib or edge the cable passes, where every clip and tie sits, and how much slack sits in each section. Restoring a routing from memory is how a harness ends up bearing on an edge it never touched before, and the resulting chafe looks identical to the fault you were trying to cure. Cut old ties with flush cutters, never with a knife blade pointed at the loom, and keep the fasteners with the plate rather than loose on the bench.

⚙️ Functional Purpose

The OEM Four-Eyed Vision Cable Cover Plate is designed to protect, secure, and preserve the cable routing around the DJI Agras T100 Four-Eyed Vision system.

The component helps:

• Protect Four-Eyed Vision wiring
• Maintain factory cable routing
• Reduce cable vibration
• Shield sensitive electrical connections
• Protect against dust intrusion
• Help reduce moisture exposure
• Prevent cable abrasion
• Maintain OEM fitment
• Improve wiring durability
• Protect sensor communication pathways
• Support stable aircraft operation
• Reduce unnecessary maintenance
• Improve long-term component reliability
• Restore damaged or missing cable protection
• Support professional fleet maintenance
• Preserve aircraft appearance
• Reduce preventable repair costs
• Support dependable field performance

Reliable cable protection is part of reliable aircraft operation. When wiring is properly secured and shielded, operators reduce the risk of avoidable electrical issues. For commercial agricultural drone fleets, that means fewer interruptions, more predictable maintenance, and better readiness during peak season.

A damaged or missing cover may contribute to:

• Cable exposure
• Cable movement
• Wire abrasion
• Moisture intrusion
• Dust contamination
• Loose cable routing
• Vision-system warnings
• Sensor communication issues
• Electrical faults
• Increased repair complexity
• Higher maintenance costs
• Unexpected downtime

Slack is the part of the job people improvise, and it should not be. Too little and the cable is pulled against its connector every time the airframe flexes, which loads the pins and eventually backs the connector out. Too much and the extra loop has somewhere to move, finds an edge, and starts wearing a new flat spot. Reproduce what the factory left, using the photographs you took before disturbing anything, and resist the urge to tidy the loom into a neater shape than it came in.

Resist the temptation to add hardware. An extra cable tie cinched down on a jacket is a stress riser and a future chafe point, and a wrap of loom or tape at the rub area traps moisture against the damage and hides it from the next inspection. If a section is bearing on something, the correct answer is to find out why the geometry changed, not to pad the symptom. A cable that is riding on an edge it was never meant to touch usually means a clip has broken, a plate is missing, or the loom was reseated wrong at a previous repair.

Confirm nothing is trapped before the fasteners come up tight. With the plate held down but not final-tightened, give the cable a light tug on each side of the cover and feel for free movement. A cable pinched at the plate edge feels dead in one direction, and that is your only warning before the fasteners crush the jacket. A plate that will not sit flat, or that stands proud on one edge, is normally sitting on the cable rather than on the airframe, and forcing the screws in that condition damages both parts at once.

Finish the job with the aircraft running rather than at the bench. Power up and confirm the vision system reports clean, then hover in a safe, open area and let the airframe vibrate for a few minutes while you watch for the warning to return. Vibration is the condition the fault lived in, and a repair that passes on a still aircraft has only been half tested. If the warning comes back with the rotors turning, the cable path still has a problem and the cover is not the last thing that needs attention.

⚠️ Common Replacement Indicators

Replacement may be recommended when operators observe:

• Cracked cover plate
• Broken mounting tabs
• Missing cover
• Loose fitment
• Warped housing
• Exposed wiring
• Cable movement
• Impact damage
• Scratches or deformation
• Chemical-related wear
• UV degradation
• Dust intrusion
• Moisture exposure
• Damaged cable routing area
• Maintenance inspection findings
• Aircraft rebuild projects
• Fleet refurbishment
• Preventative maintenance replacement
• Long-term commercial wear

Field note: inspect the harness before you close the new cover, not after. Pull the plate and look for shiny polished bands on the cable jacket — that is chafe, and it tells you the cable has been moving against something. A rub mark means you have two jobs, not one: fit the new cover AND find out what it was rubbing on. When vision-system faults come and go, the useful test is whether they track vibration or handling: a fault that appears in flight or after transport but will not reproduce on the bench is almost always a wiring or connector problem, not a sensor problem — and that is exactly what this cover exists to prevent. Wiggle the harness at the cover area with the aircraft powered up and watch whether the warning follows your hand. Do not condemn an expensive vision module until you have ruled out the cable path underneath it. Restore the factory routing exactly; a cable rerouted to "clear" a cracked cover will chafe somewhere new. And never tape a chafed section and put the cover back on — tape traps moisture against the damage and hides it from the next inspection.

What damages this cover and the wiring underneath:

• Vibration fatigue cracking at the mounting tabs over high flight hours
• Impact during transport, folding, or trailer loading
• UV exposure making the plate brittle until it splits
• Chemical overspray and concentrate contact degrading the surface
• Grit working between the cover and the body and abrading both
• Over-tightened fasteners stripping the mounting bosses
• Flying with the cover missing, which puts the harness directly in the weather

Replacing damaged protective covers early can help prevent larger wiring, sensor, or electrical issues. For farmers and commercial operators, preventative replacement is often cheaper than waiting for a field failure. A small OEM cover plate can help protect expensive electronics, reduce downtime risk, and preserve aircraft reliability during critical operating windows.

The plate is present and the fasteners are tight, but one edge stands proud of the surrounding body: the plate is almost certainly resting on the cable instead of the airframe. Take it off and look for a jacket that has been flattened or a loom pushed out of its channel, and correct the routing rather than pulling the plate down harder.

A vision warning that appears within a few minutes of every wash and clears within an hour or two: water is getting under the cover and sitting in a connector. The cover may be cracked, missing a seal, or simply being hit square on with a pressure washer, and the fix starts with the wash technique as much as the part.

Green or white crust on connector pins found under the plate: moisture has been getting in long enough to corrode. Cleaning the pins buys time at best. Note how far the corrosion extends along the harness before deciding whether the cover is the whole repair.

Warnings that only appear with a full tank or in rougher air: the loom is moving under load. A full aircraft flexes and vibrates differently from an empty one, and cable faults that hide on a light airframe show up as soon as the structure works harder.

A rattle or buzz traced to the plate area: a fastener has backed out or its boss has failed. A plate that can vibrate is no longer holding the harness where the factory put it, and the chafe starts the same day the rattle does.

Sensor windows near the cover area crusted with dried chemical or fertilizer dust: this produces vision degradation that looks exactly like a wiring fault. Clean the windows properly and retest before opening anything up, because it is the cheapest possible answer and it is right more often than people expect.

📐 Specifications

DJI Material Number (SKU): YC.JG.MQ003804

Component Type: Four-Eyed Vision cable cover plate / wiring protection cover

Compatibility:

• DJI Agras T100

Package Quantity: 1 Piece

Installation Area: Four-Eyed Vision sensor cable area

Function: Protects and secures vision-system wiring while maintaining OEM cable routing

Construction: DJI OEM high-strength engineering-grade composite

Mounting Type: Direct-fit OEM replacement component

Application: Agricultural drone vision system protection and cable management

Fastener Torque: No torque value is published for this plate. Snug the fasteners evenly until it is seated flat, and stop before the composite around the boss begins to compress

Plate Dimensions: Not published by DJI. Compare the replacement against the removed plate, inner face and edges included, before fitting

Cable Slack: No published figure exists. Reproduce the slack the factory left, working from photographs taken before the loom was disturbed, rather than adding or removing loop length by eye

Mounting Hardware: Fasteners are not itemized in this listing's package contents. Keep the original screws with the plate so a replacement is never fitted with mismatched hardware

Service Interval: None published in hours. This is a condition-replaced protective part, changed on cracking, chipped edges, a worn inner face along the cable path, stripped bosses, or ultraviolet embrittlement

🧰 Fitment Verification Before You Order

This listing is DJI material number YC.JG.MQ003804. 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. 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 Four-Eyed Vision Cable Cover Plate 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 ideal for:

• DJI Agras T100 operators
• Farmers running their own spray drones
• Commercial spraying contractors
• Agricultural aviation providers
• Fleet maintenance managers
• Agricultural drone technicians
• DJI Agras service teams
• Commercial drone fleets
• Agricultural drone repair facilities
• Precision agriculture businesses
• Preventative maintenance programs
• Aircraft refurbishment projects
• Daily commercial flight operations
• Emergency repair inventory
• Professional agricultural drone operators

For high-hour operators, keeping spare protective covers, brackets, clamps, and housings on hand can reduce downtime when minor damage occurs. This is especially important during:

• Spring application season
• Summer spraying windows
• Fungicide season
• Herbicide programs
• Orchard and vineyard work
• Custom application contracts
• Multi-drone fleet operations
• Time-sensitive field jobs

When the aircraft is needed, having the right part ready can make the difference between finishing the job and losing a day.

Chasing an intermittent vision fault that has already survived one round of parts swapping. Before another module is ordered, the cable path under this plate should be opened, inspected, and closed with a known-good cover, because a chafed harness will reproduce the same symptom through any number of new sensors.

Aircraft coming back from a season of dusty road transport and daily hosing down. Small protective plates take the worst of that combination, and an edge that has chipped or a boss that has let go leaves the harness exposed without anything obvious being wrong from three feet away.

Fleet inspections ahead of a contract where a vision-system warning would ground the aircraft mid-field. Replacing a marginal cover plate during scheduled downtime costs a few minutes; discovering the same fault at the end of a loading ramp costs a booking.

💡 Why This Part Matters

Every DJI Agras aircraft depends on protected wiring, stable sensors, and reliable communication between electronic systems. The Four-Eyed Vision Cable Cover Plate helps protect the wiring that supports the aircraft's vision system. While the part itself is simple, the system it protects is not.

Modern agricultural drones depend on electronic systems working together smoothly. Vision sensors, radar modules, flight controllers, batteries, motors, ESCs, and wiring harnesses all need to remain secure and protected throughout the aircraft's operating life.

A damaged or missing cover plate can expose wiring to vibration, dirt, moisture, chemical residue, and handling damage. Over time, this may create unnecessary electrical problems or sensor-related issues that could have been avoided with proper protection.

The OEM Four-Eyed Vision Cable Cover Plate helps maintain:

• Protected electrical wiring
• Stable cable routing
• Reduced vibration wear
• Improved vision-system reliability
• Better long-term durability
• Factory-style protection
• Cleaner aircraft maintenance
• Reduced preventable failures
• Lower repair risk
• Professional fleet readiness
• Maximum aircraft uptime
• Dependable commercial performance

Without a properly functioning cover plate, operators risk:

• Exposed wires
• Cable abrasion
• Moisture contamination
• Dust buildup
• Sensor communication issues
• Electrical faults
• Increased maintenance
• Unexpected downtime
• Higher repair costs
• Reduced operational confidence
• Delayed field work
• Lower fleet reliability

In service:

• Inspect the harness for chafe, cuts, or moisture staining before fitting the new plate
• Confirm no cable is pinched between the plate and the body before final tightening
• Restore the exact factory routing — do not reroute to make it easier
• Start fasteners by hand and snug evenly; do not over-torque into composite bosses
• Power up and confirm the vision system reports normally before flight
• Re-check the plate after the first few flight hours and after any hard landing

Professional DJI Agras operators understand that aircraft reliability is built from every component working together — not just the motors, batteries, pumps, or tanks. Small OEM protection parts help preserve the larger systems that keep the aircraft productive. The DJI Agras T100 OEM Four-Eyed Vision Cable Cover Plate restores factory cable protection, helps preserve vision-system reliability, reduces preventable wear, and supports dependable aircraft operation throughout demanding commercial agricultural use.

Protect the wiring. Protect the sensor system. Protect the aircraft. Protect the job.

Cable faults are expensive not because the cable is expensive but because the symptom points somewhere else. A degraded vision warning names the sensor, so that is what gets replaced, and when the fault returns the next suspect is the flight controller. Meanwhile the actual damage is a polished flat spot on a jacket a few inches long, sitting under a cracked plate that costs a fraction of any of the parts already fitted. Protecting the cable path is the cheapest way to keep a diagnosis honest.

Chafe is a slow mechanical process with a fast electrical ending. The jacket wears through gradually while everything works normally, then a strand breaks and the circuit becomes intermittent under vibration, then the conductor parts and the system fails outright. Operators tend to meet it at stage two and describe it as a fault that comes and goes, which is exactly the description that leads to sensors being replaced. Reading the shiny band on a jacket is what turns that guesswork into a repair.

There is a reason the factory routing looks fussier than it needs to. Each clip position, each bend radius, and each length of slack is there so that when the airframe flexes and vibrates, the cable moves with the structure rather than against it. Change the routing to clear a broken cover or to make a loom look tidier and the cable now bears on a surface nobody designed for it, which is why a repair carried out with the best intentions can produce a new chafe point within a season.

Small protective parts get skipped because they are small, and the economics run the other way. A cover plate is among the least expensive items on the aircraft and it sits over one of the more sensitive ones. Operators who keep one on the shelf are not being cautious about the plate, they are being cautious about a grounded aircraft in the middle of a spraying window and a diagnosis that starts with the most expensive component because the cheap one was not available.

🧠 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 Four-Eyed Vision Cable Cover Plate (YC.JG.MQ003804)

Component: Four-Eyed Vision Cable Cover Plate

DJI material number: YC.JG.MQ003804

Product category: Body Shells & Covers

Compatible aircraft: DJI Agras T100

Part classification: Genuine DJI OEM replacement component

Condition: Brand new — never installed, never flown

Quantity supplied: 1 × DJI Agras T100 OEM Four-Eyed Vision Cable Cover Plate

Seller: Ares Acres LLC — U.S.-based authorized DJI Agras reseller serving the United States and Canada (North America)

Ships from: Albuquerque, New Mexico, United States

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

Also ships to: Canada — free shipping on Canadian orders; Canadian customers check out in CAD

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Definition: The Four-Eyed Vision Cable Cover Plate is the genuine DJI OEM component supplied for the DJI Agras T100, sold 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. 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 DJI material number (part number) for the Agras T100 Four-Eyed vision cable cover plate? The official DJI material number is YC.JG.MQ003804. Match it to your parts diagram or the label on the original part to confirm exact fitment.

What is the DJI Agras T100 Four-Eyed Vision Cable Cover Plate? It is the genuine DJI OEM protective plate that shields and secures the wiring path of the T100's Four-Eyed Vision system, holding the harness in its factory routing and protecting it from vibration, abrasion, chemical overspray, and weather. It carries DJI material number YC.JG.MQ003804.

Which models does this cable cover plate fit? It is specified for the DJI Agras T100 as a direct-fit OEM replacement for the Four-Eyed Vision sensor cable area.

Why does my T100 vision system throw intermittent warnings after transport or only in flight? Intermittent vision faults tend to start where cable protection ends. A warning that tracks vibration or handling and will not reproduce on the bench points at the cable path rather than the sensor — and a cracked or missing cover plate is the first place that path loses its protection. Rule out the wiring under this plate before condemning an expensive vision module.

Can I fly the T100 with the vision cable cover missing? Replace it first. A cracked plate still shields most of the harness, but a missing plate puts vision-system wiring directly into the weather, dust, and chemical spray on every flight — converting one of the smallest parts on the aircraft into a future electrical repair.

How do I confirm a fault is in the cable path and not the vision module? With the aircraft powered on the ground, gently wiggle the harness at the cover area and watch whether the warning follows your hand. A fault you can steer with your fingers is a wiring or connector problem, not a sensor problem.

I found a shiny band on the cable jacket under the old plate — what does it mean? That polished band is chafe, and it means two jobs, not one: fit the new cover and find what the cable was rubbing against, or the replacement harness wears through in exactly the same spot.

How should the new cover plate be installed? Check the harness for chafe, cuts, or moisture staining first, restore the exact factory routing, confirm nothing is pinched between plate and body, snug the fasteners evenly into the composite bosses without over-torquing, and confirm the vision system reports normally before flight.

The vision warning only appears on cold, damp mornings and clears later in the day. What does that point to?

Moisture rather than mechanical damage. Water sitting in a connector or on a damp cable run raises resistance and leaks between pins until the aircraft warms through and dries out. Open the cover, look for staining, water tracks, or crust on the pins, and check whether the plate is cracked or seated badly enough to let water in. A broken conductor does not behave this way; it follows movement, not temperature.

How do I work out which sensor branch is involved?

Use whatever direction the aircraft reports. A degradation confined to one direction narrows the search to that sensor and the section of harness feeding it, which is where the cable run under this plate becomes the first thing to inspect. Several directions failing together points upstream to a shared connector or feed instead. Narrowing before disassembly saves both time and the risk of disturbing a healthy harness.

The plate sits proud on one edge even with the screws tight. What is wrong?

It is almost certainly sitting on the cable rather than on the airframe. Take it off and look for a flattened jacket or a loom pushed out of its channel, then restore the routing so the cable sits where the plate can close over it. Pulling the screws down to close the gap crushes the jacket and cracks the plate, so you finish with two damaged parts instead of a routing that needed thirty seconds of attention.

Can I 3D print a replacement cover plate to get through the week?

It is a poor substitute for this particular part. Printed polymers commonly go brittle under ultraviolet exposure and chemical contact, and a layered inner face is rougher than a molded one, so the plate meant to protect the jacket becomes the thing abrading it. A printed part also lacks the exact inner clearance around the cable path, which is the dimension that matters most and the one you cannot check against a published figure.

How much slack should the cable have under the cover?

There is no published figure, so the target is simply what the factory left. Photograph the routing before you disturb it and put back the same loop length in the same places. Too little slack pulls on the connector every time the airframe flexes; too much gives the loom room to move and find an edge. Both produce faults, and both look like careful work at the time they are created.

Can I add a cable tie or wrap the rub area to stop the chafe?

Do neither. A tie cinched onto the jacket creates a stress riser, and tape or loom wrap holds moisture against the damaged spot while hiding it from the next inspection. Chafe is a geometry problem: something changed so the cable now bears where it never used to. Find the broken clip, the missing plate, or the reseated loom that caused it, fix that, and the rubbing stops without anything being added.

I cleaned the sensor windows and the fault is still there. What next?

Move to the cable path. With the aircraft powered on the ground, work along the harness at the cover area and watch whether the warning tracks your hand, then open the plate and inspect for polished bands, flattened sections, staining, or corroded pins. Also check the inner face of the plate itself for a worn groove. Only after the cable path and both connectors have been cleared does a module become the reasonable suspect.

How do I get old cable ties off without damaging the harness?

Flush cutters, blade parallel to the loom, and cut the tie at the tail rather than at the head so the cutter never closes on a jacket. Never run a knife along a tie toward the cable; that is how a jacket gets nicked, and a nick does the same job as chafe with none of the warning. Replace ties in the same positions and at the same tension, snug enough to locate the loom and no tighter.

How do I tell this plate from the other small covers on the T100?

Look at the inner face. This one is shaped to bridge and protect a cable run, so it has a clear path or relief for the harness rather than a flat closing face for a compartment. Its position over the vision cable area is the other identifier. Small composite plates look alike in photographs, so compare the inner face against the removed part and confirm the label reads YC.JG.MQ003804 before anything is fitted.

What should I check after fitting, before I go back to spraying?

Confirm the plate is flat with no cable trapped, power up and check the vision system reports clean, then hover in an open area for a few minutes and watch whether the warning returns once the airframe is vibrating. A repair that only passes on a still aircraft has not been tested in the condition the fault lived in. Take a look under the plate again after the first working day to confirm nothing has moved.

Is this a genuine DJI OEM Four-Eyed Vision Cable Cover Plate?

Yes. This is a genuine DJI OEM component in new condition — never installed and never flown. Ares Acres LLC is a U.S.-based authorized DJI Agras reseller. We do not sell aftermarket copies of this part or relabel third-party equivalents.

Will this fit my aircraft?

This part is supplied for the DJI Agras T100. Confirm by matching DJI material number YC.JG.MQ003804 against the label on your original part or your model's DJI Agras parts diagram. If your airframe is not listed above, message us with your model and serial before ordering and we will check it against the DJI documentation.

How fast does it ship, and where does it ship from?

It ships free and fast from within the United States, with tracking. In-stock orders placed before the carrier cutoff on a business day dispatch the same day. Nothing routes through an overseas warehouse or customs.

Can I install the Four-Eyed Vision Cable Cover Plate myself?

Many operators do. Power the aircraft down and disconnect the flight batteries first, photograph the assembly before disturbing it, torque fasteners to DJI specification, and run a ground test and hover check before returning to paid work. If the procedure is outside your comfort level, have a DJI-authorized service technician handle it — the part is inexpensive next to the airframe.

What if I order the wrong part?

Contact us. Unused parts in original condition are returnable. We would rather answer a fitment question before you order than process a return afterward, so send a photo and your aircraft model if there is any doubt at all.

Do you stock other parts for this aircraft?

Yes. Ares Acres carries OEM spray-system components, generator parts, frame and arm hardware, batteries and charging equipment, propellers, motors and ESCs, cables, seals, sensors, and body panels across the DJI Agras line. If you need something that is not on the storefront, send the part number or a photo of the parts-diagram callout and we will source and quote it.

Is the DJI Agras T100 OEM Four-Eyed Vision Cable Cover Plate (YC.JG.MQ003804) also available in Canada? Yes. Ares Acres ships this T100 OEM Four-Eyed Vision Cable Cover Plate to Canada from its Albuquerque, New Mexico inventory with free shipping included, and Canadian customers see prices and check out in Canadian dollars (CAD).

Does Ares Acres ship DJI Agras T100 parts to Canadian operators? 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.

Where can I buy a genuine DJI Agras T100 Four-Eyed Vision Cable Cover Plate in the USA? Ares Acres, an authorized DJI Agras retailer based in the U.S., stocks this OEM cover plate with free and fast U.S. shipping, plus same-day shipping and tracking on in-stock parts. This part is listed under DJI material number YC.JG.MQ003804. Ares Acres also ships to Canada with free shipping.