Freightliner Cascadia 113/125 Fuel Tank Fairings

Frequently Asked Questions About Freightliner Cascadia 113/125 Fuel Tank Fairings

What exactly are fuel tank fairings, and what do they do?

Fuel tank fairings are the exterior panels that cover the space between and around the fuel tanks on your Cascadia's chassis. They smooth out the airflow along the sides of the truck, help reduce drag, and give the truck a cleaner, more finished look. They also help shield the tanks, hoses, and mounting hardware from road debris.

Will these fairings fit both the Cascadia 113 and 125, and how do I know they'll match my truck?

Fairings are typically designed around specific tank sizes, mounting configurations, and wheelbase setups, so fitment can vary even within the 113 and 125 model lines. Always check the listed specifications, such as tank diameter and mounting hole pattern, against your truck before ordering. If you're unsure, having your VIN or tank measurements handy will make it easier to confirm the right fit.

What material are these fairings made from, and how durable are they?

Most fuel tank fairings are molded from durable plastics or composites designed to hold up to road debris, weather, and vibration. Some are offered in colored or textured finishes that reduce the need for painting, while others are sold primed or unpainted so they can be color-matched to your truck. Check the product details for the specific material and finish options available.

Do these fairings come pre-painted, or will I need to paint them myself?

This depends on the specific product. Some fairings are available in a range of factory colors to match common Cascadia paint codes, while others are sold in a raw or primed finish for those planning to paint them to match their truck. Be sure to check the color and finish options listed on each product page before ordering.

How difficult is it to install fuel tank fairings, and do I need any special tools?

Installation generally involves removing the factory panels or brackets and bolting the new fairings into place using the existing mounting points. Most installations can be done with common hand tools, though having an extra set of hands is helpful since the panels can be bulky. If your fairing includes new brackets or hardware, following the included instructions will help ensure a proper fit and alignment.