Product Overview
Allison Transmission Two Plug NSBU Switch Assembly is a two plug neutral start back up switch that converts selector position into electrical reference signals. The vehicle and TCM use these signals for range recognition, starter interlock and reverse lamp operation where configured. It is supplied under part number 29540479.
Key Features
- Two plug NSBU switch configuration
- Detects transmission selector position
- Provides range reference signals to the control system
- Supports neutral start and reverse lamp functions where configured
- Supplied as one switch assembly
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