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.

Ready to shop for our newest semi truck product inventory to date? Check out our new semi truck products and tools!

Shop for semi truck air fittings, hoses, and connectors to stop leaks, replace broken lines, rebuild a trailer air setup, and find quick-connect fittings with ease.

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.

Browse through half-tandem truck fenders with various widths and gauge thicknesses, finishes, and style designs to perfectly customize your Class 8 truck. Filter for your make/model, whether it’s a …

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 …

Enhance your semi-truck with universal fit rear fenders from 4 State Trucks! We offer a range of options by top brands like Hogebuilt, Merritt, and Minimizer, including single axle, full tandem, and half …

Shop premium semi truck parts built for performance, durability, and style. From essential replacements to custom upgrades, keep your rig road-ready.

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 …