Peterbilt 389 Glider Fuel Tank Fairings

Frequently Asked Questions About Peterbilt 389 Glider Fuel Tank Fairings

What are fuel tank fairings and what do they do?

Fuel tank fairings are the panels that fit between and around the fuel tanks on a Peterbilt 389 Glider, closing the gap beneath the cab and behind the tanks. They smooth out the airflow along the side of the truck, help reduce road spray and debris from reaching the tanks and frame, and give the truck a finished, streamlined look that matches the factory or custom styling of the 389.

Will these fairings fit my specific Peterbilt 389 Glider setup?

Fit depends on your tank size, tank spacing, and wheelbase configuration, since glider kits can vary from truck to truck. Before ordering, measure the distance between your fuel tanks and confirm your tank diameter so you can match the fairing to the correct listing. If you are unsure, reach out to our team with your truck's specs and we can help confirm the correct part number for your setup.

What material are these fairings made from, and how do the finish options compare?

These fairings are typically offered in materials like aluminum or fiberglass, depending on the specific product. Aluminum options are often available in a raw, brushed, or polished finish, while fiberglass versions are usually paintable to match your truck's color. Choose a finish based on how much maintenance you want to do -- polished aluminum looks great but requires more upkeep to stay shiny, while a painted or raw finish is generally lower maintenance.

How difficult is it to install fuel tank fairings, and can I do it myself?

Installation difficulty varies by design, but most fairings mount using brackets and hardware that bolt to the tank straps or frame, similar to the factory setup. Many customers with basic mechanical experience and common hand tools are able to install them at home, though having a second set of hands helps with alignment. If your fairings require any drilling or fabrication, we recommend having a shop assist if you are not comfortable with that level of work.

Do these fairings come with the necessary mounting hardware and brackets included?

This depends on the specific listing, so always check the product description before ordering. Some fairings include all mounting brackets and hardware needed for installation, while others are sold as the fairing panel only, requiring you to reuse your existing hardware or purchase brackets separately. If the listing does not clearly state what is included, contact us and we will confirm before you buy.