Product Overview
Allison Transmission Inverted Flare Plug is identified in Allison parts references as an inverted flare plug. Available sources do not conclusively confirm that it is specifically an oil pan drain plug, so the exact installation position should be checked against the physical packaging or current Allison parts data before publication. It is supplied under part number 29501131.
Key Features
- Inverted flare plug identification
- Genuine Allison Transmission component
- Exact installation position is not publicly confirmed
- Check the physical packaging or current Allison parts data before publication
- Supplied as one individual plug
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


