Peterbilt 359 Fuel Tank Fairings

Frequently Asked Questions About Peterbilt 359 Fuel Tank Fairings

What material options are available for Peterbilt 359 fuel tank fairings, and which is most durable?

Most Peterbilt 359 fuel tank fairings come in either 16-gauge steel or fiberglass. Steel fairings offer superior durability and resistance to road debris but require regular maintenance to prevent rust. Fiberglass fairings are lighter, won't rust, and are easier to repair from minor damage, but may crack under severe impact. For trucks regularly exposed to harsh weather or heavy road use, steel fairings typically last longer with proper care.

Will these fairings fit my specific Peterbilt 359 model year?

Peterbilt 359 fuel tank fairings are generally compatible with models from 1967 through 1987, as the fuel tank mounting configurations remained consistent throughout production. However, trucks with aftermarket fuel tanks or custom frame modifications may require additional fitting. Always measure your existing tank setup before ordering - standard fairings fit tanks between 23" and 26" in diameter mounted on standard Peterbilt 359 frame rails.

How difficult is the installation process, and what tools do I need?

Installation typically takes 2-4 hours per side for someone with basic mechanical skills. You'll need a drill with metal bits, a socket set, measuring tape, and safety equipment. Most fairings come with mounting brackets and hardware, but you may need to drill 4-6 mounting holes per side into your frame rails. The most challenging aspect is ensuring proper alignment with your fuel tanks - having a helper makes the job significantly easier.

What's the difference between full-wrap and half-moon style fairings?

Full-wrap fairings completely encircle the bottom portion of your fuel tanks, providing maximum protection and a cleaner appearance but limiting tank inspection access. Half-moon fairings cover only the visible outer portion of the tanks, making them easier to install and maintain while still improving aesthetics. Full-wrap styles typically cost 20-30% more but offer better protection against road spray and debris.

Do these fairings come polished, or will I need to finish them myself?

This depends on the specific product you choose. Stainless steel fairings usually come with a brushed finish that can be polished to a mirror shine with standard metal polish. Chrome-plated steel fairings arrive pre-finished but may require touch-ups over time. Raw steel fairings need to be primed and painted or powder-coated before installation to prevent rust. Fiberglass options typically come in gel-coat white and can be painted to match your truck.