Product Overview
Allison Transmission HD B500 External Seal Ring Kit is a genuine replacement sealing kit supplied under part number 29518438. It is intended for a compatible Allison HD or B500 transmission application and is supplied as one complete kit.
Key Features
- Genuine Allison Transmission replacement kit
- External butt joint seal ring configuration
- Published 108 mm application reference
- Associated with compatible Allison HD and B500 transmissions
- Supplied as one complete seal ring kit
Kit Contents
Available specialist market information indicates that the kit contains two seal rings associated with component part number 29505800. This content has not been confirmed through current Allison OEM data, so the physical packaging should be checked before publishing the individual component quantity and part number.
Compatibility / Fitment
Public market information associates this seal ring kit with selected Allison HD and B500 transmission applications. Compatibility depends on the transmission model, internal assembly configuration, build specification and serial number. The published 108 mm reference and required sealing position should be checked against current Allison parts data before ordering.
Please message us with your engine serial number / Model / Type / Code to check compatibility.
Please also provide the Allison transmission serial number so the correct seal ring kit can be confirmed.
Why Buy Genuine OEM Parts
- Sealing components specified for the intended Allison Transmission application
- Provides the required profile for the compatible internal assembly
- Reduces the risk associated with unidentified alternative seal rings
- Provides a traceable Allison Transmission part number
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