Outfit your semi to be Ready for the Road Ahead with a soft and smooth ride, with the Sampa SP 559069-KP Single Rolling Lobe Piston Air Spring for Volvo / Peterbilt / Navistar. 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 .