Sterling L-Series Truck Air Springs & Level Valves

Frequently Asked Questions About Sterling L-Series Truck Air Springs & Level Valves

What do air springs and level valves actually do on a Sterling L-Series truck?

Air springs support the weight of the cab or chassis and absorb road shock as part of the suspension system, while the level valve automatically adjusts air pressure in the springs to keep the truck riding at a consistent height regardless of load. Together, these components help maintain ride quality, stability, and proper axle alignment.

How do I know if my air spring or level valve needs to be replaced?

Common signs include a sagging or uneven ride height, a rougher or bouncier ride than normal, visible cracking or bulging in the air spring bellows, audible air leaks near the suspension, or the cab not returning to its normal height after hitting a bump. If you notice any of these symptoms, it is a good idea to inspect the components closely before they fail completely.

Will these air springs and level valves fit my specific Sterling L-Series model?

Sterling L-Series trucks were built with different suspension setups depending on the model year and configuration, so it is important to confirm the part number matches your truck's specific application before ordering. If you are unsure which air spring or level valve your truck uses, check your existing part for identifying numbers or reach out to our team for help confirming fitment.

Can I install a replacement air spring or level valve myself?

Many truck owners and shops replace air springs and level valves as part of routine suspension maintenance, and the job is generally straightforward for someone comfortable working with air brake and suspension systems. That said, the truck must be properly supported, the air system fully depressurized, and any adjustments to the level valve linkage set correctly to restore proper ride height. If you are not familiar with these steps, having a qualified technician perform the installation is recommended.

Are these air springs and level valves made to OEM specifications?

Our Sterling L-Series air springs and level valves are designed to match the fit, form, and function of the original equipment they replace. Product listings will note whether an item is OEM, OEM-equivalent, or aftermarket so you can choose the option that best fits your truck and budget.