Product Overview
Allison Transmission Rear Output Shaft Oil Seal seals the transmission output shaft at the rear cover. It is installed around the rotating output area to help retain transmission fluid and reduce contamination entering the housing. It is supplied under part number 29536379.
Key Features
- Rear output shaft oil seal
- Fits at the rear cover output opening
- Helps prevent transmission fluid leakage
- Protects the output area from contamination
- Supplied as one individual seal
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




