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When it comes to keeping the air system for your semi truck up to par, we have just the right airline boxes, coiled airlines, glad hands, and trailer connection accessories for your big rig. With our durable and high quality air products, it is sure to get the job done right.

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Our airline boxes are Chrome Shop Mafia genuine products definitely -Bilt By the Boyz.- Most boxes come with a 2-year warranty from the Mafia, so you know you will be protected down the road if something should happen. Whether you are looking for stainless, aluminum or diamond plate boxes, you are sure to find the right style for your truck.


Air needs to move easily and efficiently thru your airlines, to keep your brakes, airbags, suspension, engine fan and more running correctly while you haul loads coast to coast. The right trailer coiled air hoses are important along with the accessories to run at max capacity. Do not forget your 3-in-1 trailer air/electric hoses as well as the glad hands and seal.

4 State Trucks

4579 Highway 43
Joplin, MO 64804

Toll Free: 888-875-7787
Local: 417-624-3054
Fax: 417-624-2489

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