Kenworth Rear Fenders

Find Rear Fender Styles for Kenworth Semi Trucks

Explore a wide selection of styles, finishes, and designs: - Full Fenders: Full fenders give the most coverage front to back. They help control road spray, protect your trailer, suspension, and airlines, and keep the rear of your Kenworth cleaner in rain and snow. - Half Fenders: Half fenders sit closer to the tires and leave more open space. They're a solid choice if you deal with low-hanging trailers, dock plates, or tight yards where clearance is a problem. - Long-Drop Wrap Fenders: Long-drop wrap fenders come down lower and wrap around the tire. They offer strong splash control and help keep mist off tankers, hazmat trailers, and polished trailers. They also give your Kenworth a sharp, custom look. - Quarter Fenders: Mount between the axles to protect the rear drive axle. They're compact, simple, and better than running bare if you just want basic protection from rocks and debris. - Single Axle Fenders: Single axle fenders cover one axle per side. A smart choice if you run a single axle setup or you're replacing fenders one axle at a time.

Find the Right Material

Material affects weight, durability, and how much time you spend cleaning and polishing. - Polyethylene (Poly): Poly fenders are lightweight and budget friendly. They won't rust and handle everyday heavy duty use with minimal upkeep. - Aluminum / stainless Steel: stainless steel is very durable and corrosion resistant. Aluminum is lighter, which helps when you're watching every pound of payload. Both give a polished look and need occasional polishing to stay bright. - Fiberglass: Fiberglass is lightweight and can be painted to match your cab or frame. It looks great on highway and show trucks, but it's not ideal for rough off-road abuse. Find the right fender by thinking about how you drive and what your needs are. - Abuse Level: Run logging, construction, or rough oilfield roads? Choose super duty or extra thick-gauge fenders with strong brackets. Highway-only routes can use rolled or long-drop styles for a smoother ride and cleaner look. - Splash Control: Long-drop wrap fenders are ideal if you want to minimize road spray, especially when pulling tankers or hazmat loads. - Weight vs. Appearance: Need to maximize payload? Go with lighter materials like poly or rolled aluminum. Want a show-ready Kenworth? Pick polished stainless or painted fiberglass. - Maintenance: Poly fenders are the easiest to maintain. Metal fenders need polishing. Fiberglass may need paint touch-ups if it chips. Buying a new rear fender setup requires sturdy mounting gear. We sell that too. You can find brackets, mounting plates, and hardware built for Kenworth rear fender setups so your fenders stay solid and rattle-free. You can also pair your new rear fenders with Kenworth mud flaps, a Kenworth visor and even a Kenworth bumper to add more style. Choose from heavy duty brands like Minimizer, Merritt, Fibertech, TPHD, Hogebuilt, and more so you can match your budget, workload, and the look you want for your Kenworth.

Frequently Asked Questions About Kenworth Rear Fenders

Will these rear fenders fit my specific Kenworth model and year?

Our Kenworth rear fenders are designed to fit most W900, T800, T880, and T680 models from 1985 to present. However, fitment can vary based on your truck's configuration, wheelbase, and whether you have a day cab or sleeper. We recommend checking the product description for specific model years or calling our technical support team at 1-888-875-7787 with your OEM number for exact fitment verification.

What's the difference between poly, fiberglass, and stainless steel fenders?

Poly fenders are lightweight, rust-proof, and typically the most affordable option. They flex on impact and return to shape, making them ideal for work trucks. Fiberglass fenders offer a smooth, paintable surface and good durability at a mid-range price point. Stainless steel fenders are the premium choice, offering maximum durability, a mirror-like finish, and the best long-term value despite the higher upfront cost. All three materials mount using the same bracket systems.

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 standard hand tools including wrenches, a drill with metal bits, and possibly a grinder for bracket adjustments. Most fenders use existing mounting points, but some applications may require drilling new holes. Many customers report that having a second person helps significantly with alignment. Detailed installation instructions are included with each fender set.

Do these fenders come with mounting brackets and hardware?

Most of our Kenworth rear fenders are sold separately from mounting brackets to give you flexibility in choosing the right bracket style for your application. Standard L-brackets, adjustable brackets, and heavy-duty brackets are available separately on our website. Some premium fender packages do include brackets and hardware - these will be clearly marked as "complete kits" in the product description. All necessary mounting hardware specifications are listed in each product's details section.

What finish options are available, and can I paint them?

Stainless steel fenders come in mirror polish or brushed finishes. Poly fenders are available in black, white, or custom colors (with longer lead times). Fiberglass fenders come in a gel-coat finish that's ready to paint - we recommend using automotive-grade primer and paint for best results. For painted steel fenders, we offer primer-only or powder-coated black options. Custom painting services are available through our shop for an additional fee.