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.

No matter your truck make or model, you’ll find trusted aftermarket options here. Keep your air brake system tight and your trailer air lines flowing freely with reliable parts that won’t let you down.

We provide a comprehensive range of semi truck bumpers that are crafted from semi aluminum materials, robust steel, and eye-catching chrome, tailored for popular models like the Freightliner …

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 …

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

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), …

Shop our clearance sale at 4 State Trucks for unparalleled savings on essential semi-truck parts! It's the perfect opportunity for truck owners to upgrade or maintain their fleet while saving.

From fleet workhorses to fully customized show trucks, we’ve got the truck lighting you need to elevate your Volvo. 4 State Trucks is the trusted source for quality lighting parts that blend safety, durability, …

Most of our semi truck cab lights are made for universal fitment. That means they work with just about any Class 8 truck—Freightliner, Kenworth, Peterbilt, Western Star, and more.