Advance FAA Kingpin Bushing Rf21

Advance FAA Kingpin Bushing Rf21

This replacement kingpin bushing is engineered for Meritor RF21, MX-140, and MX-160 front steer axles commonly found on Terex Advance and Oshkosh front discharge concrete mixers. Measuring 2.75 inches in inner diameter and 1.625 inches in length, it acts as a critical bearing surface to reduce friction and wear between the kingpin and the axle housing. Replacing worn kingpin bushings is essential for maintaining precise steering control, preventing uneven tire wear, and ensuring the safe operation of heavy-duty mixer trucks. This high-quality metal alloy bushing meets or exceeds OEM specifications for durability in demanding ready-mix applications.

Key Features

• Precision-machined metal alloy construction for high load-bearing capacity and wear resistance
• Direct replacement for Meritor RF21, MX-140, and MX-160 front steer axle kingpin assemblies
• Reduces steering friction and restores proper steering knuckle alignment
• Compatible with major mixer chassis including Terex Advance, Oshkosh, and McNeilus

Fits These Mixers

Terex, Terex Advance, Oshkosh. Fits Meritor RF21, MX-140, MX-160, and FDS-1800 front steer axles. Commonly used on Terex Advance front discharge mixers, Oshkosh front discharge mixers, and McNeilus rear discharge mixers.

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.