Advance FAA Hub Seal Wear Sleeve

Advance FAA Hub Seal Wear Sleeve

This hub seal wear sleeve is a critical component for the front axle assembly (FAA) on Terex Advance front discharge mixer trucks equipped with Marmon-Herrington MT22 steerable drive axles. It is installed over the axle spindle to create a pristine, hardened surface for the wheel hub oil seal, ensuring proper lubrication retention and keeping contaminants out of the wheel bearings. Over time, grit and friction can score the sealing surface; replacing the wear sleeve during brake or hub service restores the sealing area without the need to replace or remachine the entire spindle. It is an essential maintenance item for preventing premature bearing failure and maintaining the integrity of the front drive axle in severe-duty concrete applications.

Key Features

• Designed specifically for Marmon-Herrington MT22 front drive axles (FAA)
• Provides a hardened, smooth counterface to maximize oil seal life
• Protects the axle spindle from scoring and grooving caused by seal friction and debris
• Restores the hub sealing surface without requiring costly spindle replacement or machining
• Direct OEM replacement for Terex Advance front discharge mixers

Fits These Mixers

Terex, Terex Advance, Oshkosh. Fits Terex Advance Commander Series front discharge concrete mixer trucks equipped with the Marmon-Herrington MT22 front drive axle assembly.

All measurements ± standard manufacturing tolerance.

Product descriptions are drafted with automated tools and reviewed as time allows. While we work to keep them accurate, specifications and fitment should be confirmed with a Customer Service specialist at 800-745-3414 before purchase. Found an error? Let us know and we’ll fix it.