Peterbilt 379 Fuel Tank Covers & Bras

Frequently Asked Questions About Peterbilt 379 Fuel Tank Covers & Bras

What are fuel tank covers and bras used for on a Peterbilt 379?

Fuel tank covers and bras are protective and decorative accessories that fit over or around the fuel tanks on your Peterbilt 379. They help shield the tank surface from road debris, dirt, and minor scratches while also giving the truck a customized, finished look. Many drivers choose them to protect polished or painted tanks from everyday wear.

Will a fuel tank cover fit my specific tank size and shape?

Fuel tank covers and bras are typically made to match specific tank diameters and lengths, so it is important to measure your tank or check your tank's gallon capacity before ordering. Peterbilt 379 trucks were built with different tank sizes over the years, so double checking dimensions against the product listing will help ensure a proper fit.

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

Most fuel tank covers and bras are made from durable materials such as diamond plate aluminum, stainless steel, or heavy duty vinyl and fabric blends, depending on the style. Metal covers tend to offer more rigid protection and a bold look, while fabric bras are easier to install and remove for cleaning or tank access. Both options are designed to withstand regular highway use, though care and cleaning will vary by material.

How difficult is it to install a fuel tank cover or bra?

Installation difficulty depends on the style you choose. Metal diamond plate covers usually require mounting with straps, clamps, or hardware and may take some time to align properly around fittings and straps. Fabric bras are generally simpler, often using snaps, ties, or elastic edges to secure them around the tank without tools. Reviewing the manufacturer's installation instructions before purchase can help you know what to expect.

Do fuel tank covers interfere with access to fuel caps, gauges, or drain valves?

Quality fuel tank covers and bras are designed with cutouts or flaps for fuel caps, sight gauges, and drain valves so you can still access these components without removing the entire cover. That said, designs vary between brands and styles, so it is a good idea to check product descriptions or images to confirm the cover you are considering allows easy access to the parts you use most often.