Freightliner FL70-FL80 Air Tanks, Wraps & Mounting

Frequently Asked Questions About Freightliner FL70-FL80 Air Tanks, Wraps & Mounting

What is included in this category?

This category covers air tanks (also called air reservoirs) for Freightliner FL70 and FL80 models, along with the wraps (mounting straps or bands) and mounting hardware used to secure the tanks to the frame rail. These components are part of the truck's air brake system, storing compressed air used to operate the brakes and other air-powered accessories.

Will these air tanks and wraps fit my specific FL70 or FL80 model year?

Fit can vary depending on the model year, tank size, and frame configuration of your specific truck. Before ordering, check the tank dimensions, mounting bolt pattern, and port locations against your existing setup, or reach out to our team with your VIN or truck specs so we can help confirm compatibility.

How do I know if my air tank needs to be replaced versus just the wraps?

If the tank itself is rusted through, dented, leaking air, or has failed a visual or pressure inspection, it should be replaced. If the tank is still in good condition but the mounting wraps are cracked, rusted, or no longer holding the tank securely against the frame, replacing just the wraps may be sufficient. A visual inspection of both components during routine maintenance is the best way to catch issues early.

What material are these air tanks and wraps made from, and does that affect durability?

Air tanks are typically constructed from steel or aluminum, while wraps are commonly made from steel for strength and durability under constant vibration and load. Steel tanks are generally heavier but resistant to certain types of wear, while aluminum tanks offer weight savings. Regardless of material, tanks should be inspected periodically for corrosion, especially in regions with road salt or high moisture exposure, since internal condensation can lead to rust over time.

Are there DOT or FMCSA requirements I should be aware of when replacing air tanks?

Yes, air brake system components, including air tanks, are subject to DOT and FMCSA inspection standards since they are part of the brake system. Tanks must be free of leaks, corrosion damage, and structural defects, and must be securely mounted. If you're unsure whether a replacement tank or mounting setup meets the applicable standards for your truck, consult a qualified technician or refer to the FMCSA guidelines for air brake systems before installation.