Cabin Air Spring for Western Star & Freightliner – Heavy-Duty Sleeper Shock – Replaces 1S5-175 67638

Restore the legendary ride quality of your rig with this premium Cabin Air Spring. Specifically engineered for Western Star and Freightliner trucks, this air bag is a critical component of your cabin's suspension system. In the high-vibration world of long-haul trucking, a worn or leaking Cabin Air Spring can lead to a punishing ride, increased interior noise, and unnecessary wear on your cab’s mounting points. This heavy-duty replacement is designed to absorb the road shock and vertical movement that standard shocks can't handle alone. This unit is a direct replacement for 1S5-175, 67638, and 660033406.

Industrial-Grade Comfort: The Cabin Air Spring Advantage

This Cabin Air Spring is constructed from high-tensile, ozone-resistant rubber to prevent dry rotting and cracking—a common issue in the fluctuating temperatures of the Midwest. By maintaining a consistent air cushion, it isolates the driver and the sleeper compartment from chassis vibration, significantly reducing driver fatigue during those 11-hour shifts. Note: This air spring features a precision-molded top and bottom plate to ensure a leak-free seal and an exact OEM fit, meaning no modifications are required for installation. This is the go-to choice for owner-operators looking to maintain "factory-fresh" cab stability.

As we continue to build the largest inventory of commercial truck parts in Illinois, we prioritize suspension hardware that balances durability with industrial performance. This Cabin Air Spring has been pressure-tested to meet or exceed OEM specifications, ensuring it can handle the weight and torque of modern Class 8 cabs. Whether you are traversing rough construction sites in a Western Star or cruising the interstate in a Freightliner, this air bag provides the necessary dampening for a professional, comfortable ride. Upgrade your cab suspension today with a Cabin Air Spring built for the long haul.