Kenworth T800 Air Springs & Level Valves

Frequently Asked Questions About Kenworth T800 Air Springs & Level Valves

What do air springs and level valves actually do on my T800?

Air springs (also called air bags) support the weight of the cab or suspension and absorb road shock, while the level valve automatically adjusts air pressure in the springs to keep the truck riding at the correct height as load and road conditions change. Together, these components work to maintain a stable, controlled ride and help protect the frame and drivetrain from excess vibration.

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

Common signs include a sagging cab or axle, a rough or bouncy ride, uneven ride height side to side, audible air leaks near the suspension or cab mounts, or the compressor cycling more frequently than normal. If you notice any of these symptoms, it is a good idea to inspect the air springs for cracks, bulges, or dry rot, and check the level valve linkage for wear or misadjustment.

Will these parts fit my specific Kenworth T800 model year?

Air springs and level valves can vary based on cab suspension type, axle configuration, and model year, so it is important to confirm the part number matches your truck's specifications before ordering. If you are unsure, check your existing component's part number or reach out to our team so we can help verify fitment for your specific T800.

Can I install a new air spring or level valve myself, or should I have a professional do it?

Many experienced technicians and owner-operators are comfortable replacing air springs and level valves themselves, as the job typically involves supporting the cab or axle, releasing air pressure, and swapping the component with basic hand tools. However, because these parts affect ride height, handling, and cab stability, we recommend having the work done by a qualified technician if you are not familiar with air suspension systems, and always following proper safety procedures when supporting a lifted cab or axle.

What is the difference between OEM and aftermarket air springs and level valves?

OEM parts are made to match the original specifications of your Kenworth T800, while aftermarket parts are designed to offer comparable fit and function, often at a different price point. Both options can be reliable choices, but it is worth comparing materials, warranty coverage, and brand reputation so you can select the part that best fits your budget and performance expectations.