Ensure your semi is Ready for the Road Ahead™ with a soft and smooth ride, with the Hendrickson S-38000 ZMD® Single Rolling Lobe Piston Air Spring. To optimize comfort, handling, or other features, this replacement air spring utilizes a bellow-like bag design to lift or lower the ride height. Fashioned with tight seals to minimize air leakage and deliver superb suspension. FleetPride knows you need quality suspension and steering parts to reduce wear and tear and ultimately, downtime. Whether you need cab, truck or trailer air springs, we have the heavy duty air bags you need for a quiet, stable ride. FleetPride is your First Click in Heavy Duty®.