Kenworth T700 Air Springs & Level Valves

Frequently Asked Questions About Kenworth T700 Air Springs & Level Valves

What do air springs and level valves actually do on my Kenworth T700?

Air springs (also called air bags) are part of the suspension system that supports the weight of the cab or chassis and helps smooth out road vibration. Level valves work alongside the air springs to automatically adjust air pressure and maintain proper ride height as load conditions change. Together, these components help keep the truck riding level and stable whether it is loaded or empty.

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

Common signs include a sagging cab or chassis, uneven ride height from side to side, a bouncy or rough ride, visible cracks or bulges in the air spring bellows, or hearing air leaking near the suspension components. If your level valve is failing, you may notice the ride height does not adjust properly when load changes or air continues to leak even when the truck is stationary.

Will these air springs and level valves fit my specific T700 configuration?

Kenworth T700 trucks can have different cab suspension and chassis setups depending on model year and options, so fitment can vary. We recommend checking the part number on your existing component or referencing your truck's suspension specs before ordering. If you are unsure, our team can help confirm compatibility based on your VIN or the part currently installed.

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

Many drivers and fleet techs with mechanical experience are able to replace these parts, especially if they have access to a lift and basic air system tools. However, because these components are tied into the truck's air supply and suspension geometry, improper installation can affect ride height and handling. If you are not comfortable working with air suspension systems, having a qualified technician install the part is a safer option.

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

OEM parts are built to match the original specifications of your Kenworth T700 and are often the safest choice for guaranteed fitment. Aftermarket options can offer a more budget-friendly alternative and, in many cases, comparable quality and durability. The right choice usually comes down to your budget, how the truck is used, and whether you prefer to stick with factory-matched components.