DJI Agras T40 OEM Drone Arms (M1-M4 Full Set)

OEM Complete Aircraft Arm Set | M1, M2, M3 and M4 Folding Arm Assemblies | Agricultural Drone Propulsion Support Arms | Full Airframe Arm Replacement Kit | Field-Ready Original Replacement Components

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🇺🇸 U.S.A. FIRST

Ares Acres proudly supports 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, profitability, and customer commitments. When one or more aircraft arms are damaged during spraying or spreading season, the cost is not simply the replacement part—it is lost field time, delayed applications, missed weather windows, interrupted customer contracts, and reduced operational confidence.

That is why Ares Acres focuses on fast fulfillment, responsive support, reliable sourcing, and practical replacement components that help American drone operators keep their aircraft working when it matters most.

For farmers, applicators, service providers, repair technicians, and commercial drone operators, dependable aircraft arms are essential for maintaining proper propulsion alignment, structural stability, and reliable daily operation.

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✅ DJI Agras T40 Compatibility Guarantee

• 🇺🇸 USA Compatibility Guarantee
• 👍🏻 Satisfaction Guarantee
• 💵 Money Back Guarantee
• 📦 Same Day Shipping & Tracking

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📦 Package Includes

• 1 × DJI Agras T40 Original M1 Drone Arm
• 1 × DJI Agras T40 Original M2 Drone Arm
• 1 × DJI Agras T40 Original M3 Drone Arm
• 1 × DJI Agras T40 Original M4 Drone Arm
• Complete four-position aircraft arm set
• Position-specific structural arm assemblies
• Factory-style mounting and folding interfaces
• Direct-fit original replacement components
• Original protective packaging

This listing includes the complete M1, M2, M3, and M4 drone arm set.

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🔧 Component Overview

The DJI Agras T40 Original Drone Arms Full Set includes the M1, M2, M3, and M4 aircraft arm assemblies required to service all four primary arm positions on the DJI Agras T40.

These arm assemblies form a major part of the aircraft’s structural and propulsion-support system. Each arm connects to a specific position on the central frame and supports the components responsible for generating lift, transmitting power, routing electrical connections, and maintaining proper aircraft geometry.

The four positions included in this complete set are:

• M1 drone arm
• M2 drone arm
• M3 drone arm
• M4 drone arm

Each arm is designed for a specific location on the aircraft.

Position-specific differences may include:

• Structural orientation
• Folding direction
• Mounting geometry
• Motor position
• Cable-routing pathways
• Connector placement
• Protective component fitment
• Adjacent frame clearances
• Propulsion-system alignment

Because each arm serves a dedicated M1, M2, M3, or M4 position, the correct assembly must be installed in the correct location.

The DJI Agras T40 is designed for demanding agricultural operations that place repeated structural and operational stress on its airframe.

The aircraft may be used for:

• Crop spraying
• Liquid fertilizer application
• Herbicide treatments
• Fungicide applications
• Insecticide spraying
• Granular fertilizer spreading
• Seed distribution
• Cover-crop seeding
• Orchard operations
• Vineyard treatments
• Specialty crop applications
• Precision agriculture missions
• High-acreage commercial contracts
• Multi-aircraft fleet operations
• Daily professional deployment

Throughout these operations, the drone arms may be exposed to:

• Continuous flight vibration
• Heavy payload cycles
• Repeated takeoffs and landings
• Frequent folding and unfolding
• Rough field-road transportation
• Trailer vibration
• Accidental arm impacts
• Tree or branch contact
• Utility-pole contact
• Equipment collisions
• Hard landings
• Frame twisting
• Chemical overspray
• Fertilizer residue
• Dust and abrasive particles
• Moisture
• Mud
• UV exposure
• Temperature changes
• Long-term commercial wear

Over time, these demanding conditions may affect the arm tubes, mounting interfaces, folding areas, cable-routing channels, motor mounting locations, internal wiring pathways, and surrounding structural components.

A bent, cracked, twisted, loose, or otherwise damaged arm may prevent the aircraft’s propulsion system from maintaining the alignment and structural geometry intended by the manufacturer.

This may contribute to:

• Irregular motor positioning
• Propeller alignment concerns
• Increased vibration
• Structural imbalance
• Wiring strain
• Poor folding operation
• Difficulty locking an arm into place
• Uneven loading across the airframe
• Increased wear on connectors and brackets
• Reduced confidence in aircraft condition
• Unexpected operating interruptions

The Original M1, M2, M3, and M4 Drone Arm Set helps maintain:

• Correct four-arm aircraft geometry
• Proper propulsion-system positioning
• Secure structural attachment
• Stable folding-arm operation
• Position-specific factory fitment
• Consistent frame alignment
• Proper motor support
• Protected cable-routing pathways
• Reduced unwanted movement
• Improved structural reliability
• Professional repair standards
• Better fleet readiness
• Maximum aircraft availability
• Dependable commercial operation

This complete set is especially useful for major repairs where damage affects more than one arm or where the full airframe is being rebuilt or refurbished.

It is ideal for:

• Collision repair
• Multi-arm replacement
• Complete aircraft rebuilds
• Fleet restoration
• Frame refurbishment
• Preventative structural replacement
• Emergency repair inventory
• Repair facilities supporting multiple DJI Agras T40 aircraft

Damage following an accident is not always limited to the most visibly affected arm.

Impact forces may transfer through the aircraft and affect:

• Multiple arm assemblies
• Arm connectors
• Folding mechanisms
• Central frame mounting points
• Wiring harnesses
• Motor mounts
• Protective covers
• Adjacent brackets

Using a complete original arm set gives technicians the ability to inspect and restore all four positions during the same major repair process.

For operators who rely on the DJI Agras T40 for revenue-generating work, properly aligned and structurally sound arms are essential. Every flight depends on all four propulsion positions remaining securely supported and correctly located.

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⚙️ Functional Purpose

The Original Drone Arms Full Set is designed to provide the four structural arm assemblies that support the DJI Agras T40’s propulsion positions and connect them to the aircraft’s central frame.

The components help:

• Support the M1 propulsion position
• Support the M2 propulsion position
• Support the M3 propulsion position
• Support the M4 propulsion position
• Maintain correct motor placement
• Preserve proper four-arm geometry
• Support stable propeller positioning
• Connect each propulsion section to the central frame
• Support folding and unfolding operation
• Maintain position-specific structural alignment
• Provide protected pathways for power wiring
• Provide protected pathways for signal wiring
• Support electrical connector placement
• Reduce unwanted structural movement
• Maintain factory-style mounting geometry
• Restore damaged propulsion-support structures
• Improve long-term aircraft serviceability
• Support professional fleet maintenance
• Reduce preventable downtime
• Maintain commercial field readiness
• Support complete aircraft refurbishment
• Preserve overall aircraft reliability

A properly assembled DJI Agras T40 depends on all four arm positions working together as a single structural system.

Each arm may support or route important components such as:

• Motor assemblies
• Propellers
• Motor power cables
• Signal wiring
• Electronic speed-control connections
• Protective cable covers
• Structural fasteners
• Folding hardware
• Position-specific brackets
• Adjacent sensing or lighting components

The arm assembly provides the structural support required to keep these systems in the intended position.

A damaged or incorrectly installed arm may contribute to:

• Propulsion-system misalignment
• Loose motor positioning
• Increased aircraft vibration
• Irregular folding movement
• Difficulty securing the arm
• Strained wiring
• Pinched or twisted cables
• Fastener movement
• Uneven structural loading
• Premature wear of nearby components
• Frame noise
• Reduced aircraft confidence
• Increased inspection requirements
• More complex repairs
• Unexpected field interruptions

Replacing damaged arms with original position-specific components helps restore the factory structural configuration intended for the aircraft.

A complete set also allows operators to standardize the structural condition of all four arms during a major rebuild rather than mixing new components with heavily worn or previously damaged assemblies.

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⚠️ Common Replacement Indicators

Replacement may be recommended when operators observe:

• Bent arm tube
• Cracked arm structure
• Twisted arm assembly
• Broken mounting interface
• Damaged folding section
• Worn hinge area
• Loose structural fitment
• Excessive arm movement
• Misaligned propulsion position
• Motor mount misalignment
• Difficulty folding an arm
• Difficulty unfolding an arm
• Difficulty securing an arm in operating position
• Visible impact damage
• Frame deformation
• Damaged fastener locations
• Cracked cable-routing channel
• Exposed internal wiring
• Pinched wiring
• Stretched wiring
• Connector damage
• Chemical-related deterioration
• Fertilizer residue damage
• Corrosion
• Abrasive wear
• UV degradation
• Excessive vibration
• Unusual frame or arm noise
• Uneven aircraft geometry
• Hard-landing damage
• Transportation damage
• Trailer-related damage
• Collision damage
• Tree or branch contact
• Utility-pole contact
• Equipment impact
• Damage discovered during inspection
• Multi-arm repair requirements
• Complete frame rebuild
• Aircraft refurbishment
• Fleet refurbishment
• Long-term commercial wear

Replacement may also be appropriate when one or more arms no longer maintain the correct factory relationship between the motor position and central aircraft frame.

Even relatively small changes in arm geometry can place additional stress on:

• Motor mounts
• Propellers
• Arm connectors
• Folding mechanisms
• Wiring harnesses
• Fasteners
• Frame supports
• Adjacent brackets
• Protective covers
• Propulsion-system components

Replacing damaged arms early may help prevent additional structural, propulsion, or electrical damage.

For commercial operators, preventative replacement is often more efficient than waiting for a compromised arm to interrupt a scheduled application.

During peak agricultural season, a damaged arm can stop an otherwise functional aircraft from completing critical work.

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📐 Specifications

Component Type: Complete original drone arm set

Included Positions:

• M1 drone arm
• M2 drone arm
• M3 drone arm
• M4 drone arm

Compatibility:

• DJI Agras T40

Package Quantity: 4 Pieces / 1 Complete Set

Installation Area: M1, M2, M3, and M4 aircraft arm positions

Primary Function: Supports the four propulsion positions while maintaining correct structural alignment, folding operation, motor placement, and factory airframe geometry

System Application: DJI Agras T40 folding-arm, propulsion-support, and airframe structure

Fitment: Position-specific original replacement components

Mounting Type: Direct-fit factory-style installation

Application: Agricultural drone collision repair, structural restoration, propulsion-support repair, frame rebuild, and fleet refurbishment

Product Classification: Original Replacement Parts

Installation should be completed by an experienced DJI Agras technician or operator familiar with the T40 frame, folding-arm, propulsion, wiring, and electrical systems.

Before installation, inspect:

• Central frame mounting points
• M1 arm connector
• M2 arm connector
• M3 arm connector
• M4 arm connector
• Folding mechanisms
• Locking interfaces
• Motor assemblies
• Motor mounting points
• Propellers
• Electrical connectors
• Power wiring
• Signal wiring
• Cable-routing channels
• Electronic speed-control connections
• Structural fasteners
• Adjacent brackets
• Protective covers
• Surrounding frame components

After installation, confirm:

• Each arm is installed in the correct M1, M2, M3, or M4 position
• All four arms align correctly
• Motor assemblies maintain proper orientation
• Propulsion positions appear symmetrical
• Fasteners are properly secured
• Folding movement is smooth
• Locking operation is correct
• Wiring is not pinched, stretched, twisted, or exposed
• Electrical connectors are fully engaged
• No arm has excessive movement
• Frame geometry appears consistent
• Propellers have proper clearance
• Aircraft diagnostics are completed
• Required calibration or testing procedures are successfully performed
• No related fault messages remain

The aircraft should not be returned to commercial service until all four arm assemblies are correctly installed, securely mounted, electrically connected, and verified for safe operation.

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🚜 Necessary For

This complete drone arm set is ideal for:

• DJI Agras T40 operators
• Farmers operating agricultural drones
• Commercial spraying contractors
• Agricultural application providers
• Precision agriculture businesses
• Agricultural drone technicians
• DJI Agras repair teams
• Commercial drone repair facilities
• Fleet maintenance managers
• Multi-aircraft agricultural fleets
• Aircraft collision repairs
• Multi-arm structural repairs
• Folding-arm system restoration
• Complete airframe rebuilds
• Aircraft refurbishment projects
• Preventative maintenance programs
• Emergency repair inventory
• High-hour agricultural drone operations
• Parts departments supporting commercial fleets

Keeping a complete M1, M2, M3, and M4 arm set available can significantly reduce repair delays when the full extent of structural damage is not known until the aircraft is disassembled.

This is especially valuable after:

• Hard landings
• Vehicle transportation incidents
• Trailer movement
• Multiple arm impacts
• Tree contact
• Utility-pole contact
• Equipment collisions
• Folding-mechanism damage
• Major structural damage
• Complete aircraft teardown
• Fleet refurbishment
• Insurance-related repair work

This complete set is especially important during:

• Spring application season
• Fungicide programs
• Herbicide applications
• Insecticide spraying
• Liquid fertilizer operations
• Granular spreading operations
• Cover-crop seeding
• Orchard treatments
• Vineyard applications
• Specialty crop work
• Large-acreage contracts
• Multi-drone fleet operations
• High-volume commercial applications
• Time-sensitive weather windows
• Peak agricultural operating periods

When an aircraft is needed for a scheduled application, having all four position-specific arms available can make the difference between completing the repair immediately and waiting for additional components to arrive.

For repair facilities, stocking a complete set also makes it easier to respond to major structural damage without having to predict which individual arm positions will require replacement.

For fleet operators, a complete arm set can serve as critical emergency inventory for multiple aircraft and a wide range of collision or transportation-related repairs.

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💡 Why This Part Matters

The DJI Agras T40 depends on four properly secured, structurally sound, and accurately aligned arm assemblies.

Each arm supports one of the aircraft’s primary propulsion positions.

Together, the four arms establish:

• Aircraft geometry
• Motor placement
• Propeller positioning
• Structural balance
• Wiring pathways
• Folding functionality
• Propulsion alignment

While motors and propellers generate lift, the arms are responsible for holding those components in the correct physical relationship to the central frame.

The Original M1, M2, M3, and M4 Drone Arms Full Set helps maintain:

• Correct four-arm geometry
• Secure propulsion support
• Proper motor positioning
• Stable folding-arm operation
• Consistent frame alignment
• Protected wiring pathways
• Reduced unwanted structural movement
• Lower vibration-related wear
• Better long-term durability
• Professional maintenance standards
• Faster major repairs
• Improved fleet readiness
• Maximum aircraft utilization
• Dependable commercial performance

Without properly functioning drone arms, operators may risk:

• Structural misalignment
• Irregular motor positioning
• Propeller alignment problems
• Increased vibration
• Unstable folding or locking
• Wiring strain
• Exposed cables
• Fastener movement
• Uneven structural loading
• Accelerated frame wear
• Repeated maintenance
• Higher repair costs
• Unexpected aircraft downtime
• Delayed field applications
• Missed weather windows
• Reduced fleet productivity
• Lower operational confidence

The complete four-arm set provides an important advantage over purchasing individual arms one at a time.

Following a collision, major teardown, or full refurbishment, replacing all affected assemblies with matching original components can help restore consistent structural condition across the aircraft.

It can also help:

• Simplify repair planning
• Reduce repeated parts orders
• Improve component consistency
• Support complete frame restoration
• Increase emergency inventory coverage
• Shorten major repair turnaround
• Return the aircraft to service sooner

For commercial agricultural operators, structural reliability is part of productive application.

The aircraft must not only generate lift—it must maintain the correct geometry and structural support across all four propulsion positions throughout takeoff, application, landing, transport, and repeated daily deployment.

A damaged arm can affect far more than the visible structural tube.

It may also influence:

• Motor positioning
• Propeller clearance
• Wiring integrity
• Folding operation
• Connector alignment
• Frame loading
• Aircraft vibration
• Long-term component wear

For practical operators, the value is straightforward:

Restore every arm. Align every motor. Protect the airframe. Keep the aircraft working.

Professional DJI Agras operators understand that dependable aircraft performance begins with a stable structural foundation.

The DJI Agras T40 Original Drone Arms Full Set provides the M1, M2, M3, and M4 position-specific assemblies needed to restore factory-style propulsion support, maintain correct aircraft geometry, reduce preventable structural wear, and support dependable commercial agricultural operation.

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