Kenworth W900A Steer Axle Springs & Hangers

Frequently Asked Questions About Kenworth W900A Steer Axle Springs & Hangers

Will these springs and hangers fit my specific Kenworth W900A?

Steer axle springs and hangers can vary depending on axle capacity, wheelbase, and the year your W900A was built. Before ordering, check your truck's axle rating and compare it to the specifications listed on the product page. If you are unsure, have your VIN or axle tag information ready and contact our parts team so we can confirm the correct fit for your truck.

What is the difference between the spring and the hanger, and do I need to replace both?

The spring is the leaf spring assembly that supports the weight of the front axle and absorbs road shock, while the hanger is the bracket that mounts the spring to the frame rail. You do not always need to replace both at the same time. If your hanger shows cracking, elongated bolt holes, or excessive wear, it is worth replacing along with the spring, but a hanger in good condition can often be reused with a new spring.

How do I know if my steer axle springs need to be replaced?

Common signs of worn or failing steer axle springs include uneven ride height, a sagging front end, cracked or broken leaves, excessive cab vibration, and uneven tire wear. If you notice the truck pulling to one side or a rougher ride than usual, it is a good idea to have the front suspension inspected.

What materials and finishes are these springs and hangers made from?

Steer axle springs are typically made from heat treated alloy steel to handle the constant flexing and load bearing demands of the front axle, while hangers are usually cast or forged steel for strength and durability. Finish options vary by manufacturer, with many parts featuring a protective coating to help resist rust and corrosion in everyday operating conditions. Check the specific product listing for finish details on the part you are considering.

Can I install steer axle springs and hangers myself, or should I have a professional do it?

Replacing steer axle springs and hangers involves supporting significant vehicle weight, working with torque specifications, and properly aligning suspension components, so this job is best handled by an experienced technician with the right lifting equipment and tools. Improper installation can affect steering, alignment, and tire wear, so if you do not have the proper shop setup, we recommend having the work done by a qualified truck repair facility.