International DuraStar Deck Plates-Air Line Box

Frequently Asked Questions About International DuraStar Deck Plates-Air Line Box

What is the purpose of a deck plate and air line box on an International DuraStar?

The deck plate is the flat panel located behind the cab, typically where the air lines and electrical cables connect between the tractor and trailer. The air line box houses and protects the glad-hand connections, gladhand air lines, and electrical cable connections, keeping them organized, secure, and shielded from road debris and weather while the truck is in operation.

Will this deck plate and air line box fit my specific DuraStar model year?

International made changes to the DuraStar body and chassis layout over its production run, so mounting hole patterns and fitment can vary between model years. Before ordering, check your truck's VIN and compare it against the fitment details listed on the product page, or contact our parts specialists with your VIN or model year to confirm the correct part for your truck.

What material and finish options are available?

Deck plates and air line boxes are commonly available in painted or diamond plate aluminum, as well as stainless steel finishes. Aluminum diamond plate offers a lightweight option with added grip texture, while stainless steel provides added durability and corrosion resistance. Choose the finish that best matches your truck's existing hardware and your preference for maintenance versus long-term durability.

What is involved in installing a replacement deck plate or air line box?

Installation generally involves removing the old, damaged unit by unbolting it from the frame or cab mounts, disconnecting and relocating the air lines and electrical cables, then mounting the new plate or box in the same location using the existing bolt pattern. Most installations can be done with basic hand tools, but you should always disconnect air and electrical lines carefully and support them properly during the swap to avoid damage or leaks.

Why would I need to replace this part, and can it be repaired instead?

These components are exposed to constant road debris, moisture, and physical contact during trailer hookups, which commonly leads to cracking, bending, rust, or broken mounting brackets over time. Minor cosmetic damage can sometimes be smoothed out or patched, but cracked welds, broken mounts, or heavily corroded plates are usually more reliably and safely addressed with a direct replacement rather than a repair.