90008139
Bushing
SAF-Holland

With a length of 5.25 inches, inner bore of 1.12 inches and outer diameter of 3.50 inches, this polyurethane insert provides a resilient yet controlled interface in trailer suspension assemblies. Engineered for the trailer axle and suspension family, it pairs with the NEWAY architecture to deliver consistent energy absorption, vibration isolation, and load distribution across the mounting interface. The polyurethane compound yields superior resistance to environmental exposure, oil, and temperature variations, reducing swelling, stiffness fluctuations, and premature wear that can compromise alignment and steering feel. VMRS 016-008-108 locates it in the same family of wear parts for suspensions, while cross references ATR PB57 21139 and TDA R304382A offer practical ways to source compatible replacements. In service, expect improved tire uniformity, quieter operation, and prolonged life of springs, mounts, and fasteners by preventing repeated metal-to-metal contact. When replacing, confirm the bolt pattern and mounting geometry match OEM specs, and follow standard installation practices to maintain consistent clamping forces and geometry under load. This part plays a crucial role in maintaining overall ride quality on long-haul routes and in fleet maintenance programs.