The 40-Foot Trailer Wiring Harness with 6-Way M970 Plug provides an extended wiring solution for compatible trailer lighting and electrical systems requiring a longer wiring run.
Measuring approximately 40 feet (480 inches) long, this harness provides substantial routing length for larger trailers where electrical wiring needs to travel farther along the trailer frame.
The harness features a 6-way M970 plug, providing a dedicated connection point for compatible trailer electrical and lighting systems using the M970 connector configuration.
The extended 40-foot length makes this harness particularly useful for larger equipment trailers, enclosed trailers, cargo trailers, utility trailers, commercial trailers, and specialty trailer applications where shorter harnesses may not provide sufficient routing distance.
For trailer manufacturers and OEM applications, a preconfigured harness can simplify production by reducing the amount of individual wire routing, termination, and splicing required during assembly.
The additional length also gives installers greater flexibility when determining the best wiring route through or along the trailer frame while allowing electrical connections to be positioned where they are needed.
For replacement and repair applications, the complete harness provides a practical solution when existing trailer wiring has become damaged from vibration, abrasion, road debris, moisture exposure, corrosion, or previous modifications.
Rather than repairing multiple damaged sections of an existing wiring run, replacing the harness can provide a cleaner and more organized electrical installation.
For trailer repair facilities, fleet maintenance departments, upfitters, and trailer builders, the 40-foot configuration provides the additional reach required for servicing longer trailer platforms and custom electrical layouts.
Whether you're building a new trailer, replacing damaged wiring, or completing a custom electrical installation, this 40-Foot Trailer Wiring Harness with 6-Way M970 Plug provides a ready-to-route solution for compatible trailer electrical systems.
Specifications
| Specification | Details |
|---|
| Product Type | Trailer Wiring Harness |
| Overall Length | 40 ft / 480" |
| Connector Type | M970 Plug |
| Connector Configuration | 6-Way |
| M970 Plug Included | Yes |
| Function | Trailer Electrical / Lighting Wiring |
| Application Type | Replacement / OEM / New Installation |
| Primary Markets | Trailer / Commercial Trailer / OEM |
Features
- 40-foot trailer wiring harness
- Approximately 480 inches long
- Equipped with a 6-way M970 plug
- Preconfigured trailer wiring solution
- Extended length for larger and longer trailers
- Provides flexible routing along extended trailer frames
- Helps reduce individual wire splicing and termination
- Excellent for trailer lighting and electrical wiring
- Ideal for equipment trailers
- Great for cargo and enclosed trailers
- Suitable for utility trailers
- Excellent for commercial trailers
- Useful for specialty and custom trailer applications
- Great for trailer manufacturers and upfitters
- Ideal for OEM trailer wiring
- Suitable for replacement and repair applications
Applications & Compatibility
Designed for compatible trailer electrical systems requiring a 40-foot wiring harness with a 6-way M970 plug.
Common applications may include equipment trailers, cargo trailers, enclosed trailers, utility trailers, commercial trailers, specialty trailers, custom trailer builds, and OEM trailer manufacturing.
The longer 40-foot / 480-inch configuration is particularly useful for larger trailers requiring substantial wiring distance between electrical connection points.
For customers selecting between harness lengths, this 40-foot version provides additional routing capacity compared with the shorter 16', 20', 24', 28', 32', and 36' M970 harness configurations.
Fitment Note: Verify the 6-way M970 connector, pin configuration, circuit assignments, required harness length, voltage, routing requirements, and trailer electrical-system compatibility before installation.
Marketing Callout
40 FEET. M970 CONNECTION. BUILT FOR THE LONG HAUL.
Long trailer? No problem. With 480 inches of wiring and a 6-way M970 plug, this harness gives compatible larger trailer builds the reach needed for a clean, organized electrical installation.
