DJI Agras T20 OEM Motor Housing Base

The DJI Agras T20 OEM Motor Housing Base is the black moulded motor fixing holder that sits between the end of an arm and a propulsion motor. On top it carries a round socket with a split down one side; below it spreads into a ribbed base plate with four metal-lined screw holes, a pair of side tabs and an opening through its centre. It belongs to the propulsion system as a mounting part: it locates and holds the motor at the arm end, it does not drive, cool or electrically connect the motor. It is identified for the DJI Agras T20. Operators usually find it while searching for a T20 motor mount, a T20 motor base, a T20 motor fixing holder, a T20 motor seat, or a cracked T20 motor holder after a crash. It is a different part from the T20 Motor Protective Shell, the cup that wraps around the motor base, and from the T20 10015 Propulsion Motor itself. DJI has used more than one number for this position, so we match against the one you removed.

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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 T20 Compatibility Guarantee

• 🇺🇸 USA Compatibility Guarantee
• 👍🏻 Satisfaction Guarantee
• 💵 Money Back Guarantee
• 📦 Same Day Shipping & Tracking
• Identified for the DJI Agras T20, motor position at the arm end
• Matched by split socket, ribbed base plate, four metal-lined screw holes and side tabs against the base you removed
• Genuine DJI OEM propulsion mounting part, brand new

One base serves one motor position. If you want the match confirmed, photograph the base you removed from the socket side and from the base-plate side, so the split, the ribs and all four screw holes are visible, and send it to us — we will match it for you.

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📦 Package Includes

• 1 × Motor Housing Base — the one-piece black moulded motor fixing holder for one motor position

This is one base for one motor. It is a single moulded holder, not a set for the whole aircraft and not a motor assembly.

Not included: the propulsion motor, the Motor Protective Shell, the propeller and propeller clamp, the arm tube, the ESC, the motor cable, the screws that pass through the base, and any clamp bolt or nut used to close the socket. Reuse the original fasteners only if their threads and heads are sound.

Nothing is included because it appears near the base on the aircraft. If a fastener is missing from the position you are rebuilding, tell us which one and we will help you identify it.

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🔧 Component Overview

The motor housing base is the part that joins a propulsion motor to the end of its arm. Everything the motor does — lifting, steering, holding position in wind — passes into the airframe through this one moulding.

Its shape, as shown in the product images, has four working areas:

• The split round socket — the tall round collar on top, with a slit down one side so it can close around the part it mounts on
• The ribbed base plate — the wide lower plate, stiffened by a grid of moulded ribs underneath
• The four metal-lined screw holes — one near each corner of the base plate, with metal sleeves set into the moulding so the screws bear on metal rather than plastic
• The side tabs and centre opening — a tab on each side with a small hole, and an opening through the middle of the plate

Three neighbouring parts share this corner of the aircraft and are easy to confuse. The 10015 Propulsion Motor is the motor itself. The Motor Protective Shell is the black cup that wraps around the outside of the motor base. The motor housing base is the holder underneath both, the piece that actually fixes the motor in place. If your fault is a damaged cup, you need the shell; if the motor is noisy or will not spin, you need the motor; if the holder is cracked or has moved, you need this base.

Over a working season the base sees:

• Every load the motor produces, on every flight
• Motor vibration passing into the arm
• Tip-overs and arm-tip strikes that try to lever the motor off its arm
• Propeller strikes that twist the motor sideways
• Spray residue and wash water at the arm tip
• Sun and heat on the trailer between flights

Bases come out for three reasons: a crack in the socket or base plate after an impact, a metal-lined screw hole torn out of the moulding, or a base that has turned or shifted on the arm so the motor no longer points where its neighbours point. The last of these is the one that is easy to miss, and it is the point this part turns on.

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⚙️ Functional Purpose

The motor housing base has one engineering job: to hold the motor at the arm end in the position and angle DJI designed. The flight controller assumes every motor pushes in a known direction. The base is what makes that assumption true.

At the motor position it:

• Locates the motor on the end of its arm
• Fixes the motor to that location through four screw holes lined with metal
• Sets the angle at which the motor, and therefore its thrust, points
• Carries motor thrust and vibration into the arm and the airframe
• Provides the seat that the Motor Protective Shell closes around

What it does not do:

• It does not drive the propeller; the motor does
• It carries no wiring and has no electrical function
• It does not cool the motor
• It is not the protective cup around the motor base; that is the Motor Protective Shell
• It does not compensate for a bent arm tube; a base clamped onto a bent arm is still pointing the wrong way

That division is why the base matters out of proportion to its size. A base that has failed rarely lets the motor fall off. It lets the motor point the wrong way, and the aircraft has to work around that on every flight.

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🔍 Diagnosis — a base that still holds the motor can still be wrong, because it has moved the angle it sets

The natural test for a motor holder is whether it holds. Grab the motor, pull, and if nothing moves, the holder is fine. For this part that test is not enough. A cracked socket or a base that has turned on its arm can still grip the motor firmly and still be the fault, because what it has lost is not its grip but its angle.

A multirotor steers by making some motors push harder than others. When one motor's thrust is tilted away from where its neighbours point, part of that thrust is spent pushing sideways or twisting the aircraft, and the flight controller has to correct for it continuously. The aircraft may still fly. It is working against itself to do it.

Symptoms that can come from a tilted or shifted motor:

• A slow yaw drift or a heading the aircraft has to keep correcting in calm air
• One motor running noticeably warmer than the others after a flight
• The aircraft holding a slight lean in hover
• A vibration that appeared after a crash and did not go away with a new propeller
• Shorter flights than the same load used to give

Each of those has other causes too — a motor, a propeller, an ESC, a calibration. That is why the base is checked by eye and by hand, not by symptom alone.

How to check the base:

• Sight the motors — with the propellers off, stand back and compare the angle of every motor shaft; one that leans differently from its pair has moved
• Look at the socket — check the split collar for cracks running away from the slit and for stress whitening around it
• Look at the base plate — check the ribs and the plate for cracks, especially around the four screw holes
• Check the metal-lined holes — a sleeve that has pulled, spun or lifted in the moulding means the screw is no longer clamping the motor properly
• Check for rotation — mark the base and the arm with a pencil line; if the line has opened up after a flight, the base is turning
• Check the arm — a bent arm tube tilts the motor whatever the base does; rule it out before blaming the base

Make these checks first, while the propellers are off and that information is still cheap. If the base is cracked, a sleeve has moved, or the motor leans and the arm is straight, the base is the part. If the base is whole and square and the motor still leans, look at the arm.

Do not judge the base by grip alone. A base can hold the motor tightly and still be holding it at the wrong angle.

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⚠️ Common Replacement Indicators

Replace the motor housing base when inspection confirms one of these:

• A crack in the split socket, particularly one running from the slit
• A crack in the base plate or its ribs
• A metal-lined screw hole pulled, spun or lifted in the moulding
• A side tab broken off
• A motor that leans relative to its pair while the arm tube is straight
• A base that has turned on its arm and will not stay put when correctly tightened
• Stress whitening in the moulding after a crash or a propeller strike
• Previous repairs with adhesive, tape or cable ties

Inspect these first, because they produce similar symptoms:

• The propulsion motor — bearings, shaft and fasteners
• The propeller on that position — chips, cracks and balance
• The arm tube — bends and cracks near the motor position
• The ESC and motor cable for that position
• The Motor Protective Shell — a cracked shell often marks where the strike landed

There is no published service interval for the motor housing base. It is replaced when it is cracked, has lost a screw hole, or no longer holds the motor at its angle, not on a schedule.

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📐 Specifications

Product name: DJI Agras T20 OEM Motor Housing Base

DJI family: Agras

Primary aircraft: DJI Agras T20

Fitment basis: Identified for the DJI Agras T20

Aircraft system: Propulsion — motor mounting

Component type: One-piece moulded motor fixing holder

Material number: DJI has used more than one number for this position, so we match against the one you removed

Quantity: 1 base (one motor position)

Form: Split round socket on top; ribbed base plate with four metal-lined screw holes, two side tabs and a centre opening

Material: Not published for this part

Colour: Black

Screw holes: Four, metal-lined, as shown in the product images

Dimensions: Not published for this part

Weight: Not published for this part

Electrical: None — mounting part with no wiring

Connector: None

Mounting position: At the end of an arm, between the arm and the propulsion motor

Installation method: Socket closed around its mounting point; motor fixed through the four screw holes; fasteners are not supplied

Hardware included: None

Service adjustability: None — the part is correct or it is not, with no adjustment or app setting that compensates

Condition: Brand new

Classification: DJI OEM propulsion mounting part

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🛠️ Installation & Maintenance

Before installation

• Power the aircraft down and remove the battery
• Remove the propeller from that motor position
• Rinse and dry the arm tip so you are not working in chemical residue
• Mark the old base and the arm with a pencil line so you can see its original rotation
• Photograph the motor position from the side and from above, including how the motor cable runs
• Lay the new base beside the old one and compare the socket, the ribs, the four screw holes and the side tabs

During installation

• Remove the Motor Protective Shell from that position
• Release the motor from the base and support it so its cable is not stretched
• Release the old base and slide it off without levering against the arm
• Inspect the arm tube where the base sat for cracks, crushing or a bend
• Fit the new base in the same rotation as your pencil mark and photograph
• Close the socket and fix the motor through the four metal-lined holes; DJI does not publish a torque figure for these fasteners, so tighten evenly in a cross pattern without crushing the moulding
• Refit the Motor Protective Shell and confirm the motor cable is not trapped

After installation

• Sight along the motors with the propellers off and confirm the new position matches its pair
• Turn the motor by hand and confirm nothing rubs
• Refit the propeller in its correct orientation for that position
• Run a short hover and watch for yaw drift or a lean
• After the first full flight, check the pencil line and the fasteners again
• Record the replacement in the maintenance log

Maintenance between jobs. Rinse the arm tips after spraying. During the pre-flight walk-around, glance along the motors; a motor that has started to lean is easiest to see beside its neighbours. After any propeller strike or tip-over, check the base at that position before the next flight, even if the shell looks undamaged.

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🚜 Necessary For

This base is for operators and technicians rebuilding a T20 motor position:

• DJI Agras T20 operators replacing a cracked motor holder after a crash or a tip-over
• Operators chasing a yaw drift or lean that traced back to a motor that had moved
• Commercial spray applicators keeping a working T20 square after field knocks
• Agras service centres and repair technicians rebuilding arm tips
• Fleet managers stocking one spare base so a cracked holder does not ground an aircraft

This is not the part you need if:

• The black cup around the motor base is cracked but the holder is sound — you need the Motor Protective Shell
• The motor is noisy, rough or will not spin while the base is whole — you need the 10015 Propulsion Motor or a check of its ESC
• The arm tube is bent — a new base on a bent arm still points the motor the wrong way; the arm comes first
• The propeller is chipped — replace the propeller
• Several bases are damaged — order one base per damaged motor position
• Your aircraft is not a T20 — this base is identified only for the DJI Agras T20, not the T16, T20P, T10, T30, T40 or T50

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💡 Why This Part Matters

The motor housing base matters because it decides where a motor points. Every other propulsion part at the arm tip — the motor, the propeller, the shell — works on the assumption that the base has put the motor at the right angle.

When a base fails by breaking, the fault is obvious. When it fails by cracking around a screw hole, or by turning a few degrees on its arm, it still holds the motor and the aircraft still flies. The cost turns up elsewhere: a heading that has to be held, a motor that runs warmer than its pair, a little less flight from the same load.

That is geometry, not strength. The question for this part is not whether it holds the motor but whether it holds the motor square, and the answer comes from sighting along the motors and looking at the socket, the plate and the metal-lined holes.

If the base is whole and square, leave it alone and look elsewhere. If it is cracked, has lost a hole, or lets the motor lean on a straight arm, this is the part that puts the motor back where the flight controller expects it to be.

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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 T20 OEM Motor Housing Base

Brand: DJI

DJI family: Agras

Primary aircraft: DJI Agras T20

Compatible models: DJI Agras T20

Fitment basis: Identified for the DJI Agras T20

Component: Motor housing base (motor fixing holder)

Aircraft system: Propulsion

Installed position: At the end of an arm, between the arm and the propulsion motor

Primary function: Locates and fixes the motor at the arm end and sets its angle

Form: Black moulding: split round socket, ribbed base plate, four metal-lined screw holes, side tabs, centre opening

Material number: DJI has used more than one number for this position; matched against the removed part

Quantity supplied: 1 base, one motor position

Not included: Motor, Motor Protective Shell, propeller, arm, ESC, motor cable, fasteners

Electrical function: None

Key diagnostic: A base can grip the motor and still tilt it; sight along the motors and inspect the socket, plate and metal-lined holes

Common failure modes: Cracked socket, cracked base plate, pulled metal-lined screw hole, base turned on the arm

Service interval: None published

Service adjustability: None

Condition: Brand new

Part classification: DJI OEM propulsion mounting part

Related parts: T20 Motor Protective Shell (outer cup); T20 10015 Propulsion Motor (the motor)

Also searched as: T20 motor mount; T20 motor base; T20 motor fixing holder; T20 motor seat; Agras T20 motor holder; DJI T20 motor bracket

Disambiguation: Not the motor, not the Motor Protective Shell, not an arm, not a propeller clamp

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 the DJI Agras T20 motor housing base? The black moulded holder that fixes a propulsion motor to the end of its arm. It has a split round socket on top and a ribbed base plate with four metal-lined screw holes.

Which aircraft does it fit? It is identified for the DJI Agras T20.

Is it the same as the Motor Protective Shell? No. The Motor Protective Shell is the black cup that wraps around the outside of the motor base. The motor housing base is the holder underneath that actually fixes the motor in place.

Does it come with the motor? No. It is the base only. The motor, shell, propeller, cable and fasteners are separate.

How many do I need? One base serves one motor position. Order one for each damaged position.

What is the DJI part number? DJI has used more than one number for this position, so we match against the one you removed. Photograph the old base from both sides and send it to us if you want that confirmed.

My base still holds the motor tightly. Can it still be faulty? Yes. A cracked socket or a base that has turned on its arm can grip the motor firmly and still hold it at the wrong angle. Sight along the motors with the propellers off and compare.

What does a tilted motor do to the aircraft? Part of that motor's thrust pushes sideways or twists the aircraft, and the flight controller corrects for it continuously. You may see a slow yaw drift, a lean in hover, or one motor running warmer than its pair.

The aircraft drifts in yaw. Is it the base? It can be, but motors, propellers, ESCs and calibration can cause it too. Check the base by eye and by hand — cracks, moved screw-hole sleeves, a leaning motor on a straight arm — before replacing it.

What are the metal linings in the screw holes for? They let the screws bear on metal rather than plastic. If one has pulled, spun or lifted in the moulding, the screw is no longer clamping the motor properly and the base should be replaced.

Will a new base fix a bent arm? No. A base fitted to a bent arm still points the motor the wrong way. Replace or straighten the arm first.

Does it fit the T16 or the T20P? This base is identified only for the T20. Do not fit it to a T16, T20P, T10, T30, T40 or T50 on the strength of a similar shape.

Are screws included? No. Reuse the original fasteners if their threads and heads are sound, or replace them separately.

Can I fit it myself? Most operators can. Remove the propeller and battery, mark the base's rotation on the arm, photograph the position, check the arm while it is exposed, and tighten the four screws evenly in a cross pattern.

Is there a torque value for the motor screws? DJI does not publish one for these fasteners. Tighten them evenly and stop before the moulding deforms.

Is there a service interval? No. Replace it when it is cracked, has lost a screw hole, or no longer holds the motor square. Check it after every propeller strike or tip-over.