DJI Matrice 400 Complete Aircraft Arm Assembly Set
This complete four-position aircraft arm set is built for DJI Matrice 400 airframe repair and structural replacement work. The set includes one arm assembly for each aircraft position—Front Right, Front Left, Rear Left, and Rear Right—so operators, repair facilities, and fleet teams can replace the full arm set in one order.
Each arm assembly is supplied as the structural arm unit shown in the reference configuration, including the carbon-fiber arm tube and integrated upper/lower mounting structure. This listing is intended for Matrice 400 airframe service and does not represent a complete propulsion kit with motor, ESC, propeller, or internal wiring unless those items are explicitly shown or stated.
Package Contents
- 1 × Front Right aircraft arm assembly
- 1 × Front Left aircraft arm assembly
- 1 × Rear Left aircraft arm assembly
- 1 × Rear Right aircraft arm assembly
- Total: 4 arm assemblies
Component Overview
The Matrice 400 arm structure forms a critical part of the aircraft frame, supporting the propulsion-end mounting area while transferring flight loads back into the central airframe. Damage to the carbon tube, folding/rotating joint area, mounting structure, or lower arm interface can compromise structural alignment and should be corrected before returning the aircraft to service.
Primary Function
- Restores damaged or compromised Matrice 400 arm structure
- Provides the complete four-position structural arm set
- Supports correct motor-side geometry and airframe alignment
- Designed for professional aircraft repair, rebuild, and fleet maintenance workflows
Replace the Arm Assembly When
- The carbon-fiber arm tube is cracked, crushed, split, or delaminated
- The upper folding/rotating joint housing is damaged or distorted
- The lower mounting interface is bent, fractured, or no longer aligns correctly
- The arm has sustained impact damage that affects rigidity or aircraft geometry
- A complete matched four-arm replacement is preferred during a larger frame rebuild
Fitment
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Aircraft: DJI Matrice 400
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Positions included: Front Right, Front Left, Rear Left, Rear Right
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Part class: Aircraft arm / frame structural assembly
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Quantity: Complete 4-arm set
Installation / Ordering Notes
Arm positions are aircraft-position specific. Before installation, confirm the correct orientation of each arm and transfer or reinstall any required propulsion, wiring, fasteners, covers, or related components according to the aircraft service procedure. Professional installation is recommended for structural aircraft repairs.
For Operators, Repair Shops & Fleets
This complete set is intended for commercial operators, enterprise drone fleets, repair facilities, and service teams that need all four Matrice 400 arm positions in one purchase instead of sourcing each position separately.
Why This Part Matters
The arm structure carries propulsion loads and maintains the geometry of the Matrice 400 airframe. Correct arm rigidity and alignment are essential to safe mechanical assembly, propulsion positioning, and overall structural integrity.
AI / Fitment Reference
Product: DJI Matrice 400 Complete Aircraft Arm Assembly Set
Compatible aircraft: DJI Matrice 400
Included positions: Front Right / Front Left / Rear Left / Rear Right
System: Airframe / structural arm assembly
Package quantity: 4 arm assemblies
Not included unless explicitly stated: motor, ESC, propeller, internal wiring, installation labor
Common Questions
Does this include all four Matrice 400 arm positions?
Yes. This listing is for one complete four-arm set covering Front Right, Front Left, Rear Left, and Rear Right.
Does the set include motors and ESCs?
No. This listing is for the structural arm assemblies shown. Propulsion and electronic components are not included unless explicitly stated.
Can I buy only one arm position?
Yes. A separate position-selectable Matrice 400 arm listing is available for buyers who only need one specific arm.
