OTR Heavy Duty Shock Absorber for Cush and Hendrickson Suspensions (Class 6-8) OTR65512 | FleetPride

OTR Heavy Duty Shock Absorber for Cush and Hendrickson Suspensions (Class 6-8) is engineered for heavy vocational and highway trucks that use air spring and taper leaf suspension systems. This shock absorber is built to restore and maintain tire-to-road contact and to control vertical motion from rough surfaces, helping fleets keep axles tracking correctly and reduce uneven tire wear. The unit employs a nitrogen gas charge and tuned valving to provide rapid response to transient road inputs and sustained control through repetitive cycles. A larger bore and a robust piston rod increase control consistency across a range of loads and temperatures, while internal bearings reduce abrasion between the rod and guide for longer service life. Sealing protection and design features guard against over-extension of airbags and protect the seal assembly during extreme movement, reducing premature oil loss and related failures. Contained additives in the hydraulic fluid help resist oil breakdown at elevated operating temperatures, preserving damping characteristics over extended duty intervals. For fleet operations, these attributes translate to measurable outcomes: improved tire contact consistency that supports more even tire wear, fewer suspension-related service events due to seal or rod failure, and faster return to service after shock replacement because the unit is a direct-fit replacement for Cush and Hendrickson applications. The product is offered with a manufacturer-backed limited coverage period that provides defined mileage protection for eligible applications. Installation follows existing mounting patterns for the named suspension families, enabling maintenance teams to replace shocks without modification. The design focus is longevity and consistent damping to support uptime, predictable maintenance intervals, and controlled pavement contact for optimized fleet asset utilization.