Western Star 4700 Crossmembers- Covers

Frequently Asked Questions About Western Star 4700 Crossmembers- Covers

What exactly are frame crossmember covers and what do they do?

Frame crossmember covers are panels that attach over or around the crossmembers running between the frame rails on your Western Star 4700. They help conceal wiring, hoses, and other components mounted near the frame, protect the crossmember from road debris and corrosion, and give the underside of the truck a cleaner, more finished appearance.

Will these covers fit my Western Star 4700 without modification?

Fitment can vary depending on the model year, frame configuration, and whether your truck has factory or aftermarket crossmembers already installed. Before ordering, check the listed specifications and part numbers against your truck's VIN or existing components, and reach out to our sales team if you are unsure so we can help confirm the right fit for your specific setup.

What materials are these covers made from, and how do they hold up over time?

Crossmember covers are typically offered in steel, aluminum, or stainless steel. Steel options are durable and cost-effective but may require additional coating to resist rust. Aluminum is lighter and naturally corrosion-resistant, while stainless steel offers the best long-term resistance to weather and road salt at a higher price point. Choosing the right material often depends on your climate, routes, and how much weight savings matters for your application.

Are these covers easy to install, and what tools do I need?

Most covers bolt on using existing mounting holes or brackets, so basic hand tools such as a socket set and wrench are usually sufficient. Installation time depends on the condition of your existing hardware and whether any rust or debris needs to be cleared first. If your truck has aftermarket modifications near the frame, you may need to do some minor adjusting to ensure proper alignment before tightening everything down.

Do crossmember covers affect access to components mounted near the frame?

Since crossmember covers sit close to wiring, air lines, and other parts running along the frame, it is worth planning ahead for routine maintenance. Many covers are designed to be removable or have access points, but this can vary by design, so check the product details or ask us directly if you need frequent access to components in that area.