Name: DJI Matrice 400 178cc Gas Hybrid UAV Starter Motor | 12V 1.3kW 10T CW | OE 021000041
Brand: DJI
SKU: SM-DJI-M400-178-10T-CW

DJI Matrice 400 178cc Gas Hybrid UAV Starter Motor | 12V 1.3kW 10T CW | OE 021000041

Product Code:SM-DJI-M400-178-10T-CW

Brand:DJI

$22.00

Core Advantages

● Twelve volts. 1.3 kW. Ten teeth. Clockwise, read at the pinion face. Longer can than the 160cc unit. Plated steel barrel. Alloy nose. Flat flange, not stepped.
● 021000041 is on the label. That is the whole paper trail. Dealer lists came back empty. So did two cross-reference tools. Ten teeth and clockwise are what decide the fit, not the box print.
● Two flange bolts, 8 mm. One main stud. One trigger spade. Negative lead off first. Stand the old motor next to the new one. Count teeth with a fingertip. Do not shim a gap shut, shims change mesh depth.
● Key on. One click. No crank. Load test the battery, then the relay, then the ground strap. A whine with no spin is the bendix. Grinding right after fitting means the nose is not square.
● Matrice 400 lifts six kilos on TB100 packs, 59 minutes a flight. No ring gear on that frame. This starter turns the gasoline engine module in ground power and hybrid benches. Pure electric airframe, you do not need it. Measure first.

OEM Numbers

OEM Number

DJI021000041

Replacement Number

Factory Number

Technical Parameters

rated_voltage

12V

rated_power

1300W

rotation_direction

gear_teeth

installation_size

Two-bolt flange, 8 mm holes, pilot spigot; exact mm not publishedmm

moq

1pcs

delivery_lead_time

15days

stator_conductor_material

Pure copper winding

rotor_conductor_material

Pure copper winding

rated_torque_nm

Not publishedN·m

anti_corrosion_coating

Plated steel barrel

warranty_period

6months

Product Overview

Twelve volts. 1.3 kW. Ten teeth, clockwise, read with the pinion facing you. The can runs longer than the 160cc motor and the flange sits flat instead of stepped.

Direction is where people lose money. A nine-tooth counter-clockwise unit drops into the same two holes and then fights the engine. On a 178cc single that shows up as a kickback and a chewed bendix within a handful of starts.

Mounting. Flange to the block. Two 8 mm bolts, one stud for the cable, one spade for the trigger. Nothing hangs off the airframe.

The airframe side. Matrice 400 carries a 6 kg payload, flies 59 minutes, runs on TB100 packs. All electric, no flywheel, no ring gear. So this is not a drop-in part for the aircraft itself.

What it does drive. Ground power carts and hybrid test benches run a small gasoline single in this displacement range. That engine has a flywheel with a ring gear. This motor turns it.

One number. 021000041, on the label. I looked through dealer catalogues, cross-reference tools and auction listings. Nothing came back. Treat the label as the only authority and compare it with your old unit before money moves.

Before you pay. Photograph the old motor from four sides. Count teeth by touch. Measure the nose with a caliper. Measure bolt spacing centre to centre. A motor that looks right and meshes wrong will finish the ring gear in a week.

Fitting. Negative lead off. Trigger spade. Main stud. Flange bolts last, two passes, even load. Do not add shims to close a gap. Shim thickness sets mesh depth, and mesh depth is what kills teeth.

If it will not crank. Key on, one click, silence. Check the battery under load, not at rest. Then the relay. Then the ground strap. A whine with no rotation is the bendix, not the winding. Grinding on a fresh install is a crooked nose.

In the box. One motor, terminals capped. Six months against DOA and winding faults. Single samples are fine. Twenty pieces starts a production run. Fifteen to thirty days.

Vehicle Fitment

Brand	Model	Model Code	Year
DJI	Matrice 400	MATRICE-400	2026–2026

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