Frequently Asked Questions About Kenworth T300-T450 Mud Flaps

What years and models of Kenworth T300-T450 trucks do these mud flaps fit?

Our mud flaps are designed to fit Kenworth T300 models from 1994-2007 and T450 models from 2008-2010. However, due to variations in truck configurations, we recommend measuring your existing mud flap brackets or the space between your rear wheels and bumper. Standard sizes include 24" x 30" and 24" x 36" options. For trucks with custom modifications or aftermarket bumpers, please contact our support team with your VIN for specific fitment guidance.

What materials are these mud flaps made from, and how long do they typically last?

We offer two primary material options: heavy-duty rubber compound (3/8" to 1/2" thick) and anti-sail polyethylene. The rubber flaps typically last 2-3 years under normal highway conditions, while the poly options can last 3-5 years. Both materials resist cracking in temperatures from -40?F to 180?F. For severe duty applications like construction or logging, expect approximately 30-40% shorter lifespan. All our mud flaps feature UV inhibitors to prevent sun damage and maintain flexibility.

Do I need special tools or brackets to install these mud flaps?

Most installations require basic hand tools: a drill with 3/8" and 1/2" bits, socket wrench set, and measuring tape. If your truck already has OEM mud flap brackets, our universal mounting kits will work with existing holes about 80% of the time. For trucks without brackets, you'll need our complete bracket kit (sold separately) which includes stainless steel brackets, bolts, and washers. Installation typically takes 30-45 minutes per flap. We include detailed instructions with diagrams for both bracket and no-bracket installations.

What's the difference between anti-sail, weighted, and standard mud flaps?

Standard mud flaps work well for local driving and moderate speeds. Weighted mud flaps feature a steel or rubber weight bar at the bottom (adding 2-4 lbs) to prevent flapping at highway speeds above 55 mph. Anti-sail mud flaps use either molded-in grooves or a stiffer polyethylene material to reduce wind lift without added weight - ideal for long-haul drivers concerned about fuel economy. For T300/T450 trucks frequently operating at highway speeds, we recommend either weighted or anti-sail options to prevent premature wear and reduce wind noise.

Can I get custom logos or lettering on these mud flaps?

Yes, we offer several customization options. Raised white lettering (typically your company name or DOT number) can be molded directly into black rubber flaps with a minimum order of 10 pairs. For smaller quantities, we provide stick-on reflective lettering kits in white, red, or yellow. Custom logo embossing requires a one-time die charge of $150-$300 depending on complexity, plus a 25-pair minimum order. Standard production time for custom orders is 2-3 weeks. Note that customized mud flaps cannot be returned unless defective.