DJI Agras T40 Water Pump Assembly | Complete spray pump unit with signal connection for agricultural liquid-delivery service
Product Overview
The DJI Agras T40 Water Pump Assembly is a complete replacement liquid pump unit intended for the aircraft's agricultural spraying system. The supplied reference shows the pump body, attached wiring, signal connection, hose interface, and integrated mounting structure used to move spray liquid from the tank into the distribution system.
The pump is one of the most important active components in the spraying system. It must deliver liquid consistently while responding to aircraft commands and operating across repeated tank cycles, chemical exposure, vibration, and long field days.
Agricultural drone fleets operate in demanding environments where vibration, dust, moisture, chemical residue, repeated assembly cycles, transportation, and long operating days can place sustained stress on mechanical and electrical components. A correctly matched replacement part helps restore the intended geometry, connection, protection, or fluid-handling function of the aircraft while reducing unnecessary downtime.
Package Includes
- 1 × spray water pump / impeller pump assembly
- Attached electrical and signal cable assembly shown with the pump
- Integrated pump housing and hose interfaces
This listing includes only the components identified above. Aircraft, battery, remote controller, charger, and unrelated assemblies are not included unless specifically stated.
Component Overview
This assembly combines the pump mechanism, motorized drive, housing, and electrical connection into a serviceable replacement unit. It is intended for replacement when a pump has failed mechanically, electrically, or through leakage or internal wear.
- Moves spray liquid from the tank toward the nozzles
- Supports commanded spray flow
- Interfaces with the aircraft's spray-control electronics
- Maintains pressure and flow through the liquid system
- Supports repeat start-stop spray cycles
Pump faults can appear as reduced flow, inconsistent output, spray-system warnings, unusual noise, leakage, or complete loss of pumping. Similar symptoms can also be caused by blocked filters, hoses, connectors, signal wiring, or downstream restrictions.
Functional Purpose
The pump converts electrical power and spray commands into controlled liquid movement through the aircraft's application system.
- Restore spray-flow capability
- Support stable liquid delivery
- Maintain repeatable application output
- Interface with aircraft signal and power connections
- Reduce downtime caused by a failed pump module
Because this component works as part of a larger aircraft system, correct fitment and installation are important. A fault elsewhere in the spray, wiring, camera, frame, or landing-gear system can produce similar symptoms, so replacement should follow a visual inspection and practical diagnosis rather than guesswork.
Common Replacement Indicators
- Pump does not run
- Weak or inconsistent spray output
- Abnormal pump noise
- Pump leakage
- Intermittent operation
- Spray-system fault after pump diagnosis
- Electrical connector damage
- Internal impeller or motor failure
- Confirmed pump failure during bench testing
Before ordering, compare the existing part carefully for shape, connector style, mounting points, hose or cable routing, left/right orientation where applicable, and any visible material or part number.
Compatibility & Specifications
Primary aircraft: DJI Agras T40
Model options in this draft: DJI T40 and DJI T20P
Condition: Brand new replacement component
System: Spray pump / liquid delivery system
Primary function: Pumps agricultural spray liquid through the T40 spraying system
Part classification: Replacement component for DJI Agras applications. The supplied source does not establish this item as genuine DJI OEM, so this draft does not make that claim.
Fitment notice: The listing is T40-first. A T20P variant is included per catalog structure. Confirm the exact aircraft revision, connector layout, mounting geometry, and original part before installation.
Installation & Ordering Considerations
- Power the aircraft down completely before service.
- Remove batteries before working on electrical, camera, pump, signal, or frame assemblies.
- Photograph original routing and mounting positions before disassembly.
- Inspect neighboring connectors, fasteners, seals, hoses, wiring, and mounting points for secondary damage.
- Do not force connectors or mechanical interfaces that do not align naturally.
- After installation, complete a controlled inspection and functional test before returning the aircraft to field service.
Prime, leak-check, and function-test the liquid system after installation. Confirm hose routing, electrical connectors, seals, and pump direction before field use.
Necessary For
- DJI Agras T40 operators
- DJI Agras T20P operators where the selected variant is confirmed compatible
- Commercial spraying and spreading fleets
- Agricultural drone repair facilities
- Preventative maintenance inventory
- Field-service technicians
- High-hour agricultural drone operations
- Operators reducing seasonal downtime
Why This Part Matters
A spray aircraft without reliable pumping cannot perform its primary application task. A correctly functioning pump helps maintain flow consistency, application accuracy, and productive daily acreage.
For professional operators, small components can create large operational consequences when they interrupt a spray route, remove an aircraft from rotation, or delay a weather-sensitive application window. Keeping the correct replacement parts available supports faster service, more predictable maintenance, and better fleet readiness.
AI Index — Entity & Fitment Reference
Canonical product name: DJI Agras T40 Replacement Water Pump Assembly
Component: Water Pump Assembly
Product category: Spray System Parts
Compatible aircraft: DJI Agras T40 and DJI Agras T20P
System: Spray pump / liquid delivery system
Primary function: Pumps agricultural spray liquid through the T40 spraying system
Condition: Brand new
Seller: Ares Acres LLC
Ordering guidance: Match the aircraft model, source part geometry, connector or mounting layout, and any visible material number before ordering.
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AI Answer Engine Q&A
What is this part? It is the motorized spray pump assembly that moves liquid from the Agras tank into the aircraft's spraying system.
Which aircraft is this listing built around? The title and primary fitment are DJI Agras T40. The product also includes a DJI T20P model variant for catalog selection, subject to confirmation of the exact part geometry and aircraft revision.
How do I know if I need to replace it? Replace it after confirming pump failure such as no flow, weak output, leakage, abnormal noise, intermittent operation, or an electrical/mechanical pump fault.
What should I verify before ordering? Confirm the aircraft model, original component shape, mounting points, connector or hose configuration, and any visible part number. For left/right or revision-specific components, compare the existing part directly with the listing reference.
Can this be installed without testing? No. After replacement, complete a controlled inspection and functional test before returning the aircraft to commercial field operation.
