Product Overview
Allison Transmission P3 Retarder Output Speed Sensor measures P3 planetary or retarder output speed and returns a rotational speed signal to the TCM. The control system uses this feedback to monitor ratios and maintain shift quality. It is supplied under part number 29544139.
Key Features
- P3 planetary and retarder output speed sensing
- Sends rotational speed information to the TCM
- Supports ratio monitoring and shift control
- Specified resistance and signal characteristics
- Supplied as one sensor 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