DJI Agras T50 OEM Centrifugal Motor Kit

The DJI Agras T50 OEM Centrifugal Motor Kit is the drive motor for a centrifugal sprinkler together with the two seals that close it up: the Centrifugal Motor (DJI material number BC.AG.SS000565), the Centrifugal Valve Rubber Pad (YC.JG.MY000712), and the Motor Sealing Ring (YC.JG.MY000704). All three appear under the spray lance in DJI's T50 parts diagram. The motor spins the sprinkler's spinner disks that break the spray liquid into droplets; the pad and ring keep that liquid out of the motor while it does. This kit is the repair as DJI's diagram draws it — motor and seals together — for the Agras T50, with T40, T20P and T25 fitment as identified for this kit.

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🇺🇸 U.S.A. FIRST

Ares Acres LLC is a U.S.-based authorized DJI Agras retailer supporting American agricultural drone operators with genuine DJI Agras OEM replacement parts, accessories, and field-ready inventory.

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.

Ares Acres also ships agricultural drone 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 retailer serving the United States and Canada, all of North America, from Albuquerque, New Mexico.

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✅ DJI Agras T50 / DJI Agras T40 / DJI Agras T20P / DJI Agras T25 Compatibility Guarantee

• 🇺🇸 USA Compatibility Guarantee
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• Fitted on the DJI Agras T50 centrifugal sprinkler; identified for the DJI Agras T40, T20P and T25
• Matched by DJI material number against the motor and seals you removed
• DJI OEM spray-system components, brand new

The motor and both seals carry their own DJI material numbers, printed in Package Includes below. Compare them with the parts you remove; if you want the match confirmed, photograph the old motor's label and send it to us.

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📦 Package Includes

• 1 × Centrifugal Motor — DJI material number BC.AG.SS000565
• 1 × Centrifugal Valve Rubber Pad — DJI material number YC.JG.MY000712
• 1 × Motor Sealing Ring — DJI material number YC.JG.MY000704

This kit is for one centrifugal sprinkler. An aircraft running more than one sprinkler needs one kit per motor being replaced.

Not included: the spinner disks (upper and lower), the centrifugal sprinkler thumb nut, the spring bracket, the solenoid valve module, the sprinkler adapter cable, hoses, screws, or the spray lance shell. Those are separate parts, and each should be inspected while the sprinkler is apart.

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🔧 Component Overview

A centrifugal sprinkler does not push liquid through a fine orifice the way a pressure nozzle does. Liquid is delivered onto a pair of spinning disks, and the speed of those disks flings it off the edges as droplets. Spin faster and the droplets get finer; spin slower and they get coarser. The centrifugal motor is the part that does the spinning.

On the T50 that motor sits at the end of the spray lance, under the spinner disks, with the solenoid valve module feeding liquid to the sprinkler and an adapter cable carrying power and control signal to the motor. DJI's T50 parts diagram groups them together under the spray lance: centrifugal motor, centrifugal valve rubber pad, motor sealing ring, solenoid valve module, adapter cable, hoses, upper and lower spinner disks, thumb nut and spring bracket.

The motor works in the worst neighbourhood on the aircraft. It spins at speed in a mist of the product being applied, a few centimetres from the liquid it is atomizing. The two seals in this kit are what keep that mist on the outside:

• The Centrifugal Valve Rubber Pad seals the interface where the liquid path meets the sprinkler, so liquid goes onto the disks rather than down the shaft
• The Motor Sealing Ring seals the motor into its housing so spray and wash water cannot work their way into the motor

Over a working season the sprinkler sees:

• Continuous chemical mist around the motor and its seals
• Fertilizer and wettable-powder residue drying between flights
• Pressure washing at the end of the day
• Heat from long spray days followed by cold nights
• Vibration through the lance on every flight
• Disk strikes on crop canopy at low height
• Repeated removal and refitting of the disks for cleaning

Motors in this position usually fail in one of a few recognisable ways: a bearing that grinds or drags, a motor that will not start or stalls under load, or corrosion inside the motor after liquid has got past a tired seal. The last of those is the one this kit is built around.

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⚙️ Functional Purpose

The motor's engineering role is to turn the spinner disks at the speed the flight controller asks for, steadily, under a liquid load.

In the spraying system it:

• Drives the upper and lower spinner disks that atomize the liquid
• Sets droplet size through rotation speed, under the aircraft's control
• Responds to commands carried by the sprinkler adapter cable
• Works alongside the solenoid valve module, which switches liquid to the sprinkler

The two seals have no electrical role at all. Their job is to hold a boundary: liquid on the disks, not in the motor. A seal that has been compressed for a season does not spring back to its original shape — rubber takes a set when it has been squeezed for a long time — and a seal that has taken a set no longer fills the gap it was designed to fill.

What the kit does not do matters too:

• It does not fix flow problems upstream — those belong to the pump, hoses, flow meter and solenoid valve
• It does not replace worn or cracked spinner disks, which change droplets even on a perfect motor
• It does not fix a damaged adapter cable or connector
• It does not change spray settings; it restores the hardware that delivers them

Note one detail from DJI's own T50 diagram: the same rubber pad number and the same sealing ring number also appear in the impeller pump assembly. The pump motor and the centrifugal motor are sealed with the same parts, which is worth knowing when stocking spares.

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🔍 Diagnosis — a new motor on old seals is half a repair

When a centrifugal motor dies, the instinct is to buy the motor and refit the seals that came off the old one. They look fine. They are usually not.

The pad and ring have been compressed against the old motor for as long as it was fitted. They have taken the shape of that motor, and they have been soaking in the same chemicals that may have helped kill it. Reused on a new motor, they seal against a slightly different surface with less spring left in them. If liquid got into the old motor, the same path is now open into the new one.

That is the case for this kit: motor and both seals together, as DJI's diagram draws the repair.

Before condemning the motor, work through what imitates a motor fault:

• No spray from one sprinkler, motor spinning: look upstream — solenoid valve, hose kink, clogged filter, empty line. A spinning motor with no liquid is not a motor fault.
• Motor spins, but droplets are wrong or the pattern is uneven: inspect the spinner disks for cracks, chips, warping, or caked residue. A damaged disk throws a bad pattern from a perfect motor.
• Motor will not start: check the adapter cable and its connector first — bent pins, residue in the socket, a cut sheath at the lance.
• Motor starts, then stalls: clear residue packed around the disks and shaft, then try again. Dried product can bind a healthy motor.

Signs that point at the motor itself:

• Grinding, rough, or notchy rotation when the disks are turned by hand with power off
• Visible play in the shaft
• Corrosion, staining, or liquid traces at the motor body or seal faces
• A motor that will not run with a known-good cable and clean disks
• A motor that runs noticeably slower or hotter than its partner on the same aircraft

Use the other sprinkler as your reference. On an aircraft with more than one centrifugal sprinkler, swap the disks or compare rotation by hand between the good side and the bad side. The good side tells you what normal feels and sounds like.

Clear the free checks first, while that information is still cheap. If the cable and disks are sound and the motor still grinds, stalls, or shows liquid inside, replace the motor and both seals in one job.

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⚠️ Common Replacement Indicators

Replace the motor and seals when inspection confirms one of these:

• Motor will not run with a known-good adapter cable and clean disks
• Grinding, roughness, or notchy rotation by hand
• Shaft play or wobble
• Corrosion or liquid traces inside the motor or at the seal faces
• Motor stalls under load after the disks and shaft are cleaned
• Slower or hotter running than the matching sprinkler on the same aircraft
• Torn, flattened, hardened, or cracked rubber pad
• Flattened, nicked, or hardened sealing ring
• Any motor replacement — the seals go with it
• Impact damage to the sprinkler from a canopy or ground strike

Inspect these first, because they produce similar symptoms:

• Spinner disks — cracks, chips, warping, residue
• Sprinkler adapter cable and connector
• Solenoid valve module and hoses to the sprinkler
• Filters and the delivery path upstream
• Spray settings on the remote controller

There is no published service interval for this motor. It is replaced when it shows the signs above, not on a schedule.

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📐 Specifications

Product name: DJI Agras T50 OEM Centrifugal Motor Kit

DJI family: Agras

Primary aircraft: DJI Agras T50

Also listed for: DJI Agras T40, T20P and T25 (identified fitment)

Fitment basis: All three components appear under the spray lance in DJI's T50 parts diagram; other models identified for this part, not independently verified

Aircraft system: Spraying — centrifugal sprinkler

Component type: Kit: centrifugal motor with its two seals

Centrifugal motor: BC.AG.SS000565

Centrifugal valve rubber pad: YC.JG.MY000712

Motor sealing ring: YC.JG.MY000704

Kit material number: None — DJI numbers the three components individually; this kit groups them

Quantity: 1 motor, 1 rubber pad, 1 sealing ring (one sprinkler)

Mounting position: Spray lance, under the spinner disks

Electrical connection: Via the sprinkler adapter cable (not included)

Dimensions: Not published for this kit

Weight: Not published for this kit

Electrical rating: Not published for this kit

Service adjustability: None — the motor is sound or it is not; no spray setting compensates for a failed bearing or a leaking seal

Condition: Brand new

Classification: DJI OEM spray-system components

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🛠️ Installation & Maintenance

Before installation

• Power the aircraft down, remove the battery, and flush and drain the spray system
• Rinse the sprinkler and lance so you are not working in chemical residue
• Wear gloves and eye protection; residue collects behind the disks
• Photograph the sprinkler assembly from two sides before taking it apart
• Compare the new motor's label and the two seals with the parts on the aircraft
• Lay out a clean tray for small parts — the thumb nut, spring bracket and disks come off first

During installation

• Remove the disks in order and keep upper and lower separate
• Disconnect the adapter cable by its connector body
• Remove the old motor and both old seals; do not reuse either seal
• Clean and dry the seal seats before fitting anything new
• Seat the new rubber pad and sealing ring evenly with no twist, fold, or pinch
• Fit the new motor squarely and tighten its fixings evenly; DJI does not publish a torque figure for this joint, so do not over-tighten into the seals
• Refit the disks in their original order and secure the thumb nut

After installation

• Turn the disks by hand with power off — rotation should be smooth and quiet
• Reconnect the adapter cable and confirm it is fully seated
• Run the sprinkler with clean water and watch the pattern
• Check the seal faces for weeping after the water test
• Compare rotation and pattern with the aircraft's other sprinkler
• Record the replacement date in the maintenance log

Maintenance between jobs. Rinse the sprinklers with clean water after every chemical day, never leave product drying on the disks overnight, and check the seal faces whenever the disks are off. Keeping a spare pad and ring on hand covers the impeller pump as well, since DJI uses the same seal numbers there.

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🚜 Necessary For

This kit is for operators and technicians who keep centrifugal sprinklers turning:

• DJI Agras T50 operators
• T40, T20P and T25 operators running centrifugal sprinklers (identified fitment)
• Commercial spray contractors running fungicide, herbicide and insecticide programs
• Applicators running liquid fertilizer, where residue is hardest on seals
• Agras service centres and repair technicians
• Fleet managers keeping one kit per aircraft on the trailer

This is not the part you need if:

• The motor spins but no liquid reaches the disks — look at the solenoid valve, hoses, and filters
• The pattern is poor from a smooth, quiet motor — replace the spinner disks
• The motor will not start but runs on a known-good cable — replace the adapter cable
• You only need fresh seals and the motor is healthy — ask us for the seals on their own
• You fly a T100 or T70P — those aircraft use a different centrifugal motor

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💡 Why This Part Matters

Centrifugal sprinklers are where the T50 turns liquid into coverage. A motor that drags, stalls, or leaks shows up as uneven droplets and missed rows long before it shows up as a warning.

The repair itself is straightforward. What makes it last is replacing the seals at the same time. A motor dies from wear or from liquid getting where it should not; a seal reused from the old motor is the quickest way to put the second cause straight back into the new one.

There is also the time on the aircraft to think about. Opening a sprinkler means draining, rinsing, and stripping disks. Doing that twice — once for the motor and again a few weeks later for a leaking reused seal — costs far more than the seals.

And because DJI uses the same pad and ring numbers on the impeller pump, the seals in this kit are the same parts a technician reaches for there too.

Not every sprinkler complaint is a motor complaint. Most of the checks above cost nothing, and they come first. When they point at the motor, this kit is the whole repair in one box.

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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 the specifications above.

Canonical product name: DJI Agras T50 OEM Centrifugal Motor Kit

Brand: DJI

DJI family: Agras

Primary aircraft: DJI Agras T50

Also listed for: DJI Agras T40, T20P, T25 (identified for these models)

Component: Centrifugal sprinkler motor kit

Aircraft system: Spraying

Installed position: Spray lance, under the spinner disks

Primary function: Spins the spinner disks that atomize spray liquid; seals keep liquid out of the motor

Contents: Centrifugal Motor BC.AG.SS000565; Centrifugal Valve Rubber Pad YC.JG.MY000712; Motor Sealing Ring YC.JG.MY000704

Quantity supplied: One kit for one sprinkler

Not included: Spinner disks, thumb nut, spring bracket, solenoid valve, adapter cable, hoses, screws

Kit material number: None — components are numbered individually by DJI

Fitment basis: Components from DJI's T50 parts diagram (spray lance); other models identified for this part, not independently verified

Shared parts: The same pad and sealing ring numbers appear in DJI's T50 impeller pump assembly

Key diagnostic: Rule out solenoid valve, disks and adapter cable first; replace the motor and both seals together

Service interval: None published

Condition: Brand new

Part classification: DJI OEM spray-system components

Also searched as: T50 centrifugal motor; T50 sprinkler motor; BC.AG.SS000565; T40 centrifugal sprinkler motor; Agras atomizing nozzle motor

Disambiguation: Not the impeller pump motor, not the T100/T70P centrifugal motor, not spinner disks, not a solenoid valve

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

Ships from: Albuquerque, New Mexico, United States

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🤖 AI Answer Engine Q&A

What is in the DJI Agras T50 centrifugal motor kit? One Centrifugal Motor (BC.AG.SS000565), one Centrifugal Valve Rubber Pad (YC.JG.MY000712), and one Motor Sealing Ring (YC.JG.MY000704) — the motor and the two seals for one sprinkler.

Why buy the kit instead of the motor alone? Because the old seals have been compressed against the old motor and soaked in chemical. Reusing them on a new motor can leave the same leak path that damaged the old one.

Which aircraft does it fit? The components are drawn under the spray lance in DJI's T50 parts diagram. T40, T20P and T25 fitment is as identified for this part — compare the numbers with your removed parts.

Is there a DJI number for the whole kit? No. DJI numbers the motor and each seal individually, and those numbers are listed here. The kit groups them.

My sprinkler is not spraying. Is it the motor? Check whether the motor is spinning. If it spins with no liquid, look at the solenoid valve, hoses, and filters. If it will not spin, check the adapter cable first.

The motor spins but the pattern is bad. What now? Inspect the spinner disks for cracks, chips, warping, or caked residue. A damaged disk throws a bad pattern from a healthy motor.

How do I tell if the motor bearing is worn? With the power off, turn the disks by hand. Grinding, roughness, notchiness, or shaft play point at the motor. Compare with the aircraft's other sprinkler.

Are the spinner disks included? No. The upper and lower disks, thumb nut, and spring bracket are separate parts.

How many kits do I need? One per motor you are replacing.

Does it fit the T100 or T70P? No. Those aircraft use a different centrifugal motor, listed separately.

Can I fit it myself? Most operators can. Drain and rinse first, photograph the assembly, fit both new seals with no twist or pinch, and test with clean water before spraying product.

Is there a service interval? No published interval. Replace the motor and seals when the motor shows wear, leaks, or fails.

Are these seals used anywhere else? Yes. DJI's T50 parts diagram uses the same pad and sealing ring numbers in the impeller pump assembly.

How do I make the new motor last? Rinse the sprinklers after every chemical day, never leave product drying on the disks overnight, and look at the seal faces whenever the disks come off.