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.

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 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 …

Explore a diverse range of new semi-truck engine parts at 4 State Trucks. Discover quality OE and aftermarket replacement filters, belts, sensors, flywheel components, and more online to ensure your …

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.

Find the best semi-truck lighting at 4 State Trucks. Boost your truck's visibility and style with our wide range of options, including LED lights, fog lights, and driving lights.

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.

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), …

Browse top-quality Semi-Truck Wheels and Tires, including hubcap covers, nut covers, simulators, and equalizers. Enhance your truck’s performance – shop now!