If you’re looking to enhance your International truck, you’ve come to the right place. At 4 State Trucks, we offer a vast selection of parts for everything from the classic 9900 semi to the latest LT Series.

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 …

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 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 …

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.

Sep 9, 2025 · Ready to transform your rig into a hydraulic powerhouse? A semi truck wetline kit can do the trick. One of these will turn your truck from a normal highway hauler into a workhorse capable of …

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 …

Sep 23, 2025 · What is a Speed Sensor in a Semi Truck? Basically, the speed sensor monitors the rotational speed of the wheels, converting the motion of the wheel into an electronic signal which is …

From old-school classics to sleek modern LEDs, 4 State Trucks is your one-stop shop for clearance and marker lights for commercial trucks. With competitive prices, fast shipping, and a massive inventory …

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, …