At 4 State Trucks, you can upgrade the style of your rig with semi truck rear fenders. We offer a range of options from top brands like Hogebuilt, Merritt, and Minimizer, as well as budget-friendly choices …

4 State Trucks carries the best new semi truck parts for Peterbilt, Kenworth, Freightliner, International, and more.

Find top-quality Mack truck parts at 4 State Trucks. Upgrade your rig with OE replacements and aftermarket solutions to ensure peak performance and durability. From bumpers and engine parts to …

Your semi truck’s exhaust system does more than just move fumes out of the engine—it plays a huge role in performance, emissions control, and style. That’s why we carry a massive selection of heavy …

Find reliable aftermarket upgrades and replacement components that are make-model specific, whether you need Kenwoth W900 truck parts or T680 replacement parts, we have your make/model-specific …

That’s why we offer some of the best semi truck seats and accessories in the industry—built for comfort, durability, and long-haul performance. Whether you drive a Peterbilt, Kenworth, Freightliner, or …

Discover the perfect semi-truck seat at 4 State Trucks for ultimate comfort and support. Explore adjustable features, durable materials, and vibration dampening for a smooth ride.

At 4 State Trucks, you'll find the perfect semi-truck sun visors made to fit your ride. We have easy-to-install and super-durable options, making driving safer and more comfortable on long hauls.

Check out the best semi truck air horns over at 4 State Trucks. Whether you're into powerful train horns or sleek dual-tone options, we've got you covered for loud, reliable performance.

Will a CSM bumper fit my specific truck model and year? CSM bumpers are designed for specific truck models and years. Most commonly, they fit Peterbilt 379 (1987-2007), Peterbilt 389 (2008-present), …