Product Overview
Allison Transmission Double NSBU Companion Harness is a genuine companion harness identified for a double NSBU switch arrangement. Available product information does not confirm the individual circuits, connector pinout or vehicle interface. It is supplied under part number 29541685.
Key Features
- Companion harness for a double NSBU arrangement
- Genuine Allison Transmission component
- Connector and pinout must match the installed system
- Individual circuits are not publicly confirmed
- Supplied as one complete companion harness
Compatibility / Fitment
Compatibility depends on the Allison transmission model, serial number, control generation and build specification. Please provide the transmission serial number before ordering so the part number and application can be checked.
Please message us with your engine serial number / Model / Type / Code to check compatibility.
Why Buy Genuine OEM Parts
- Designed for the intended Allison transmission application
- Supports correct fit and operating function
- Provides traceable OEM part identification
- Helps maintain the transmission to the specified component standard
Why Buy From Mitchell Powersystems
- Genuine OEM parts supplied with technical support
- UK based parts supply for professional workshops and operators
- Help available to confirm the correct part using your equipment details
- Trusted supplier for diesel engine, transmission and drivetrain parts


