Shocks & Air Springs
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Freightliner Shock Absorbers & Air Springs
A smooth, stable ride isn't just about driver comfort—it is critical for protecting your cargo, extending tire life, and maintaining safe braking distances. In Freightliner’s industry-leading AirLiner® suspension systems, your air springs (air bags) and shock absorbers must work together in perfect harmony. The air springs carry the heavy freight and maintain ride height, while the shocks control the rebound and keep your tires firmly planted on the pavement.
At Fast Lane Truck Parts, we stock OEM and high-quality aftermarket shocks and air springs for the entire Freightliner lineup, including the Cascadia, M2 106/112, Columbia, Century Class, and Severe Duty models. We offer both Genuine OEM replacements and trusted aftermarket brands designed for the punishing demands of commercial hauling.
Chassis & Cab Suspension Components
Whether you are experiencing aggressive tire cupping, a sagging trailer connection, or a jarring ride inside the sleeper, we have the components to restore your suspension:
- ► Heavy-Duty Drive Axle Air Springs: Replace leaking, dry-rotted, or blown air bags with our durable, high-burst-pressure air springs. Designed for exact fitment on Freightliner drive axles, they ensure your truck maintains level operation under maximum fifth-wheel loads.
- ► Commercial Grade Shock Absorbers: Worn shocks can cause dangerous wheel hop and premature tire wear. Our selection of heavy-duty shocks features robust piston rods, advanced valving, and superior hydraulic fluid designs to dampen extreme road vibration and stabilize your chassis.
- ► Cab Shocks & Sleeper Air Bags: Driver retention starts with a comfortable workspace. Don't neglect your cab suspension. We carry the specific mini-air springs and cab shock absorbers required to isolate your Cascadia or Columbia cab from harsh frame vibrations.
Verify Your Ride Height and Fitment
Installing an air spring with the incorrect extended height or a shock with the wrong stroke length can severely damage your suspension. Because Freightliner builds trucks for various weight ratings, parts vary widely. To guarantee you receive the correct shocks and air springs, please contact us with the last 6 characters of your VIN before ordering.