Upgrade your PACCAR fleet with the precision and longevity of American-made polyurethane. The ATRO SP00-11601 is a heavy-duty Spring Eye Bushing engineered to replace standard rubber components in Kenworth and Peterbilt trucks. Unlike rubber, which softens and cracks over time, ATRO’s proprietary polyurethane is chemically resistant to grease, road salt, and environmental debris, ensuring a significantly longer service life and improved ride stability.
This versatile bushing is a high-performance solution for Kenworth and PACCAR heavy-duty suspension systems. It is designed for use in multiple positions:
Placement: Rear of Front Spring; Front of Front Spring.
The SP00-11601 serves as a direct upgrade for the following OEM and aftermarket part numbers:
Kenworth / PACCAR: B65-6010
TRP Parts: SB434134H058NP
Dayton Parts: RB338
Superior Resilience: ATRO’s polyurethane maintains its shape and structural integrity under extreme torsional loads, preventing the "pin-to-sleeve" contact that leads to premature failure.
Chemical Immunity: Completely unaffected by oil, grease, diesel, and road chemicals—contaminants that typically cause rubber bushings to rot and swell.
Maintenance-Free: The self-lubricating properties of the material eliminate the need for frequent greasing, reducing shop time and labor costs.
Consistent Ride Quality: Resists "spring walk" and maintains precise axle alignment, leading to more even tire wear and better steering response.
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