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.

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 …

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 …

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, …

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.

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 …

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

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 …

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.