Western Star 5900 SBA Air Tanks, Wraps- Mount

Frequently Asked Questions About Western Star 5900 SBA Air Tanks, Wraps- Mount

What exactly is an air tank wrap/mount bracket, and do I need one?

The wrap and mount is the bracket assembly that secures the air tank (also called an air reservoir) to the truck's frame rail. If your original bracket is cracked, rusted through, or has been bent from road debris or a tank replacement, the wrap and mount will need to be replaced to keep the air tank properly secured and vibration-free.

Will this air tank wrap/mount fit my Western Star 5900 SBA?

These mounts are built to match the frame rail dimensions and air tank sizes used on the Western Star 5900 SBA, but tank placement and mounting configurations can vary by build year and how the truck was originally spec'd. Always compare the bolt pattern, tank diameter, and frame rail width against your existing setup or check with our parts team before ordering to confirm fit.

What material are these wraps/mounts made from, and how well do they hold up?

Air tank wraps and mounts are typically made from formed or cast steel to handle the constant vibration and weight load of a full air tank. Look for a durable finish, such as a powder coat or protective paint, to resist rust and corrosion, especially important given the mount's exposure to road salt, moisture, and debris under the frame.

Can I install a new air tank wrap/mount myself, or should I have a shop do it?

Many owner-operators and shop technicians replace these mounts themselves since the job mainly involves unbolting the old wrap from the frame rail, supporting the tank, and bolting in the new bracket. That said, air tanks are heavy and under pressure, so the tank should be drained and properly supported during removal and installation. If you're not comfortable safely supporting the tank's weight or don't have the right equipment, having a qualified technician handle the swap is a safer bet.

Does replacing the air tank wrap/mount affect my air brake system or DOT compliance?

The wrap and mount itself is a structural bracket and does not contain air lines or valves, so it doesn't directly affect brake system function. However, since a securely mounted air tank is required for proper air brake operation, a loose, cracked, or missing mount can be flagged during a roadside or annual DOT inspection. Installing a properly fitted replacement helps keep your truck inspection-ready.