The 4 State Trucks Blog

Every OTR truck driver needs reliable cooling for food and beverages on long haul drives. That's where semi truck refrigerators come in handy. When it comes to buying this must-have accessory, what's the best option to spend your money on?  3 Things to Look for in a Semi Truck Fridge Before buying, weigh these practical factors: Power usage & efficiencyHow well it runs on 12V without draining your batteries. Budget price pointUpfront cost versus long-term reliability and power s …

If you hang around truck shows long enough, you start hearing the same names over and over. Some are people. Some are companies. And a rare few are trucks. Ivy’s Poison is one of those trucks. This chopped, dropped, tribal-flamed 1986 Peterbilt 359 is the kind of ride that makes people stop mid-sentence and go, “Wait… what is THAT?” Built with serious love, serious parts, and a whole lot of attitude by Chrome Shop Mafia and the crew at 4 State Trucks, this rig is old-sch …

Almost any custom show truck prioritizes quality interior upholstery material and stitch design, be it vinyl, premium leather, or cloth.  Let's dig into some of the aftermarket semi truck upholstery designs that you can use when customizing your interior sleeper cab space.  Are Custom Semi Truck Upholstery Upgrades Worth the Price Tag? Like anything else that's custom-made, it can enhance the resale value of your truck and completely personalize the overall look and feel. Yup. It&rsqu …

Want to protect and clean your diesel fuel system in one go? The FASS (fuel air separation system) is the ideal aftermarket performance upgrade. Here's why.  FASS stops contaminants (air/water/debris) from entering your fuel stream and achieves consistent fuel delivery to your engine with this high-ROI performance upgrade. FASS's adjustable lift pump and fuel filtration systems are carefully engineered to perform beyond the limitations of standard OEM fuel delivery components, like the stoc …

Need to lower your exhaust and engine noise, but aren’t sure what muffler to get? We offer Pittsburgh Power, Donaldson, Automann, and BESTfit mufflers. In this quick guide, we’ll break down the basics of Class 8 semi-truck mufflers, list the top features of our aftermarket mufflers, and resonators.  When it comes to performance, the design of the muffler is just as critical as the exhaust diameter size: Do you want more power? Get a straight-through or low-restriction X-section …