Kenworth W990 Deck Plates & Air Line Boxes

Frequently Asked Questions About Kenworth W990 Deck Plates & Air Line Boxes

What are deck plates and air line boxes used for on a Kenworth W990?

Deck plates provide a durable, textured platform behind the cab where air lines, electrical cords, and gladhands are routed to the trailer. Air line boxes house and protect these connections from road debris, weather, and physical damage while keeping them organized and accessible.

Will these deck plates and air line boxes fit my W990 without modification?

Products in this category are designed to match the W990's frame and cab configuration, but exact fitment can vary depending on your truck's build, chassis setup, and any prior modifications. We recommend checking listed specifications and measurements against your truck, or contacting our team to confirm fitment before ordering.

What materials are these deck plates and air line boxes made from, and what finish options are available?

Most deck plates and air line boxes are constructed from aluminum or stainless steel for durability and corrosion resistance. Finish options commonly include polished, brushed, or diamond plate textures, allowing you to match the look of your existing chassis components or achieve a custom appearance.

How difficult is it to install a replacement deck plate or air line box?

Installation typically involves removing the factory unit and bolting the new component into the existing mounting points, so most installations can be handled with common hand tools. Some air line boxes may require disconnecting and rerouting air lines and electrical connections, so it helps to label or photograph the original setup before removal.

Do these parts help protect air lines and electrical connections from damage?

Yes, that is their primary function. A properly fitted deck plate and air line box shield hoses, wiring, and fittings from rock chips, moisture, and abrasion, which can reduce wear and help prevent air leaks or electrical faults caused by exposed lines dragging or rubbing against the frame.