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.

Shop our top-notch selection of International 4700-4900 parts from the best brands in the business. For the smoothest ride on the road, shop our aftermarket and custom parts to upgrade your semi truck's …

At 4 State Trucks, we carry a wide selection of aftermarket semi truck fenders in every shape and style. From full radius and half fenders to quarter fenders and custom full-wraps, we’ve got the setup that …

Signal your intentions clearly to other drivers when changing lanes or making turns. Stay compliant with DOT regulations for a smooth ride. Regularly check and maintain your lights for a worry-free journey. …

BESTFIT TRUCK PARTS Peterbilt Lower Step Without Brackets 7 X 29.5 Inch Aluminum by BESTfit (No reviews yet) Write a Review SKU: 01-050133 $72.99

Take all the guesswork out of tire pressure with a TPMS kit for your commercial truck. Get real-time PSI and temperature readings to address underinflation or overinflation issues before they cause problems.

Explore our inventory of essential components like Radiators, Charge Air Coolers, Fan Shrouds, Filters, and Transmission Coolers designed to fit your truck. Trust 4 State Trucks to provide reliable …

Hit the open road in style and comfort with the best custom gear for your Peterbilt heavy duty truck or 18 wheeler. A Peterbilt 359 semi truck driving by brings back nostalgia with a look that combines the …

Secure your gear with our heavy-duty Semi Truck Cab Racks at 4 State Trucks. These racks, available in aluminum and steel, offer essential storage for your tools, chains, and equipment, keeping …

We’re your one-stop shop for International semi truck parts and accessories. Whether you’re replacing worn components or customizing your engine setup for better performance, we’ve got what you need …