Frequently Asked Questions About Kenworth T660 Fairings & Steps

Will these fairings and steps fit my specific year model Kenworth T660?

Most aftermarket fairings and steps are designed to fit Kenworth T660 models from 2008 to 2017. However, there can be slight variations between model years, particularly in mounting hole locations and bracket designs. We recommend checking the specific product description for year compatibility or contacting our support team with your VIN number to ensure proper fitment. Some fairings may require minor modifications for trucks with factory-installed accessories or custom modifications.

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

Our T660 fairings are typically manufactured from either high-grade fiberglass or ABS plastic. Fiberglass options offer superior impact resistance and can handle temperature extremes from -40?F to 180?F, making them ideal for harsh weather conditions. ABS plastic fairings are lighter weight and more flexible, which helps prevent cracking from minor impacts. Both materials are UV-resistant to prevent fading and degradation from sun exposure. Steps are usually constructed from aluminum or steel with anti-slip surfaces rated for at least 500 pounds of weight capacity.

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

Installation difficulty varies by product, but most fairings can be installed in 2-4 hours with basic hand tools. You'll typically need a drill with various bit sizes, socket wrenches, screwdrivers, and measuring tape. Some installations may require cutting or trimming for proper fitment. Side fairings often use existing mounting points, while bumper fairings might require drilling new holes. We strongly recommend having a second person assist with alignment and holding pieces in place during installation. Professional installation typically runs $200-400 if you prefer not to do it yourself.

What finish options are available, and can they be painted to match my truck?

Most fairings come in either a gel-coat white finish or a primer-ready surface. Gel-coat finishes are ready to install but limited in color options. Primer-ready fairings allow for custom painting to match your truck's exact color but require additional prep work and painting. Chrome and stainless steel options are available for steps and some accent pieces. If you choose to paint, use automotive-grade primers and paints designed for the specific material (fiberglass or ABS) to ensure proper adhesion and longevity.

Do aftermarket fairings affect fuel economy, and are they DOT compliant?

Quality aerodynamic fairings can improve fuel economy by 3-7% depending on your typical driving speeds and conditions. The greatest improvements are seen at highway speeds above 55 mph. All fairings sold on our site meet DOT requirements for commercial vehicles. However, some states have specific regulations about overall vehicle width and the extension of accessories beyond certain points. Side fairings typically cannot extend more than 3 inches beyond the widest part of the truck. Always check your state's specific regulations before installation to ensure compliance.