DJI Agras T40 Spreader Control Module

Replacement electronic spreader control module for DJI Agras spreading systems, supplied new for T40, T20P, T30, and T10 configurations built on the matching spreader control architecture.

🇺🇸 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 Spreader Control Module 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 dji parts 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 T40 / DJI Agras T20P / DJI Agras T30 / DJI Agras T10, this is the part that keeps a scheduled job on the calendar instead of on hold.

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✅ DJI Agras T40 / DJI Agras T20P / DJI Agras T30 / DJI Agras T10 Compatibility Guarantee

🇺🇸 USA Compatibility Guarantee

👍🏻 Satisfaction Guarantee

💵 Money Back Guarantee

📦 Same Day Shipping & Tracking

Guaranteed compatible with DJI Agras T40 / DJI Agras T20P / DJI Agras T30 / DJI Agras T10

Brand new condition — never installed, never flown

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📦 Package Includes

1 × Spreader Control Module

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🔧 Component Overview

The Spreader Control Module is the electronic controller for a DJI Agras spreading system. It is not part of the aircraft's flight electronics and it is not part of the hopper. It sits between the two, taking direction from the aircraft and the spreading system and turning it into commands the material-delivery mechanism can act on. Supplied brand new, never installed and never flown.

Physically it is an electronic module in a protective housing with a connector interface into the spreader harness and defined mounting points on the spreading assembly. Housing shape, connector layout, and mounting pattern are what separate one generation of module from the next, which is why the module you remove should be compared directly against the replacement rather than matched from a photograph.

This module is supplied for DJI Agras T40, T20P, T30, and T10 aircraft running the corresponding spreader control architecture. Those airframes share a spreading-system family, but they do not share every revision of every component within it, so the spreader generation actually installed on your aircraft matters as much as the model number on the airframe. Confirm both before ordering.

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⚙️ Functional Purpose

In normal operation the module forms part of the electronic control path between the aircraft, the spreading system, and the mechanisms that move material out of the hopper. It participates in controlling and coordinating spreading-system operation, so granular product is delivered when the aircraft calls for it and held back when it does not. Spread rate, timing, and coverage all depend on that control path staying intact.

When the module fails, the failure does not look mechanical. The hopper is full, the dispensing hardware turns freely, nothing is visibly broken, and the spreader still will not respond correctly. That is the signature of a control-path fault rather than a material-handling fault, and it is the reason operators lose an afternoon inspecting the hopper when the problem sits upstream of it in the electronics.

A partial failure costs more than a clean one. An intermittent module can spread normally through part of a pass and drop out for the rest, which shows up afterward as striping, skipped ground, or an application rate that does not match the plan. By the time the pattern is visible in the field the product is already down, so intermittent spreading behavior deserves the same attention as a spreader that will not start at all.

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⚠️ Common Replacement Indicators

Spreading system fails to initialize when the aircraft is powered up.

Spreader does not respond to commands even though the hopper is loaded and the dispensing hardware turns freely.

Intermittent spreading during a pass that inspection traces to the control electronics rather than to a jam.

Spreading stops partway through a job and then resumes on its own.

Visible connector or housing damage on the installed module.

Moisture, corrosion, or electrical damage found on the module or inside its connector.

Bent, pushed-back, or contaminated pins where the spreader harness meets the module.

Diagnostic substitution or service testing isolates the controller as the faulty component.

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📐 Specifications

Part: Spreader Control Module

Component type: Electronic control module for the DJI Agras spreading system

Product category: DJI Parts

Compatible aircraft: DJI Agras T40 / T20P / T30 / T10

Function: Electronic control path between the aircraft, the spreading system, and the material-delivery mechanism

Assembly scope: Control module only — hopper and dispensing assembly are not included

Quantity supplied: 1 × Spreader Control Module

Condition: Brand new — never installed, never flown

Ships from: United States

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🧰 Fitment Verification Before You Order

Confirm fitment by part number before ordering. Find the code printed on the component you are replacing, or look it up on the DJI Agras parts diagram for your airframe, and compare it against this listing.

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 T40 / DJI Agras T20P / DJI Agras T30 / DJI Agras T10. 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 Spreader Control Module is easier to fit correctly when you can see how the original sat.

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

Restoring spreader operation on an aircraft that flies normally but will not dispense material.

Repairing a spreading system after moisture, corrosion, or electrical damage reaches the control module.

Replacing a module with a cracked housing or a damaged connector.

Clearing intermittent spread-rate faults that inspection has traced to the control electronics.

Returning a T40, T20P, T30, or T10 to fertilizer, seed, or granular application work inside an open window.

Confirming a diagnosis by substitution when the controller is the last untested item in the chain.

Holding a spare controller in the service truck so a spreading failure costs an afternoon instead of a week.

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💵 What Downtime Actually Costs

The 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.

A 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.

Against 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.

For the Spreader Control Module, that logic is straightforward: it is an inexpensive component relative to the DJI Agras T40 / DJI Agras T20P / DJI Agras T30 / DJI Agras T10 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.

This 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.

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💡 Why This Part Matters

A spreading aircraft with a dead control module is a fully airworthy machine that cannot earn. The rotors turn, the batteries are charged, the hopper is loaded, and none of it matters, because the component that tells the material-delivery mechanism what to do is not answering. That is the most expensive kind of failure to own: everything else on the aircraft is ready and the job still does not happen.

Spreading work runs on windows that do not wait. Fertilizer timing, seeding dates, and granular applications are set by the crop and the weather, not by a parts order. Acres that miss their window get treated late at reduced effect, get handed to a ground rig at higher cost, or do not get treated at all. Against those numbers the price of the module is a rounding error, and the price of having one already on the shelf is smaller still.

Getting the diagnosis right matters as much as getting the part quickly. A control module is not a blind fix for every spreading error. Loose connectors, damaged wiring, a jammed dispensing mechanism, a failed sensor, or a spreader configuration that does not match the aircraft all produce overlapping symptoms. Inspect harnesses, connectors, power delivery, and the mechanical path first. Replacing a good module leaves the real fault in the aircraft, and the aircraft still on the ground.

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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 T40 Spreader Control Module

Component: Spreader Control Module

Product category: DJI Parts

Compatible aircraft: DJI Agras T40, DJI Agras T20P, DJI Agras T30, DJI Agras T10

Condition: Brand new — never installed, never flown

Quantity supplied: 1 × Spreader Control Module

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 Spreader Control Module is equipment supplied for use with the DJI Agras T40, DJI Agras T20P, DJI Agras T30, DJI Agras T10, sold new by Ares Acres LLC, a U.S.-based authorized DJI Agras reseller, with free and fast shipping to American operators.

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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.

New condition, correctly described. We describe what we ship and we do not overstate it. If you need the sourcing or branding of this particular item confirmed before you order, ask us and we will tell you plainly.

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

Does this listing include the hopper or the complete spreading system?

No. This is the spreader control module on its own. The hopper, the dispensing hardware, and the rest of the spreading assembly are separate components and are not included. If you need any of those as well, send us your aircraft model and the spreader generation you are running and we will quote them.

Can a wiring or connector fault look exactly like a failed control module?

Yes, and it often does. Loose connectors, chafed or broken wiring, and interrupted power delivery all produce the same no-response behavior as a dead controller. Harness and connector inspection should be part of the diagnosis before the module is replaced, not after.

The spreader will not start at all. Is the module always the cause?

No. A spreader that will not initialize can also come from a jammed dispensing mechanism, a sensor fault, a power-supply problem, or a spreading-system configuration that does not match the aircraft. The module is a strong candidate once those have been ruled out, not before.

Does one module cover the T40, T20P, T30, and T10?

This module is supplied for those aircraft where they use the corresponding spreader control architecture. Spreading systems were revised across that range, so confirm the spreader generation installed on your aircraft and compare the housing, mounting points, and connector layout against the module you are removing.

What should I check before I order a replacement module?

Four things. Confirm the aircraft model. Confirm which spreader generation is installed. Compare the housing and connector layout to the part you are removing. And confirm that your diagnosis actually points at the controller rather than at the harness or the mechanical path.

Can moisture or fertilizer dust kill the module?

Moisture, corrosion, and electrical damage are among the normal reasons these modules are replaced. Granular product and washdown water both find their way into connectors. When you have the assembly open, inspect the connector for contamination and moisture and make sure seals go back correctly.

What test should I run after installing the module?

Power the aircraft up and run a controlled functional test of the spreading system before you load material. Confirm the spreader initializes, responds to commands, and reports no new errors. Only then load product and fly a check pass. Finding a problem with an empty hopper is far cheaper than finding it over a field.

Is intermittent spreading an electronics problem or a mechanical problem?

It can be either, which is why it needs to be traced rather than guessed. Partial jams, worn dispensing hardware, and sensor faults produce intermittent delivery just as a failing controller does. Inspect the mechanical path and the harness first, and treat the module as the answer only when the fault follows the electronics.

Will this fit my aircraft?

This part is supplied for the DJI Agras T40 / DJI Agras T20P / DJI Agras T30 / DJI Agras T10. Confirm against your model's DJI Agras parts diagram before ordering. 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 Spreader Control Module 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.

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