Product Overview
Allison Transmission Neutral Start Safety Switch detects whether the transmission selector is in an approved neutral or park position before the starter circuit is enabled. It supports neutral start safety and must match the installed selector arrangement. It is supplied under part number 29511977.
Key Features
- Neutral start safety switch
- Helps prevent starting in an engaged drive range
- Detects the applicable selector position
- Must match the installed selector and wiring arrangement
- 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


