Tough Roads Need Tougher Suspension Parts

Let’s face it—if your suspension isn’t doing its job, neither is your truck. Whether you're running long hauls or working locally, your frame and chassis take a beating every single day. That’s where we come in. Here at 4 State Trucks, we’ve got a solid lineup of aftermarket heavy-duty suspension parts built to handle the rough stuff. From frame rails and crossmembers to air ride suspensions, leaf springs, shocks, and bushings—we’ve got what you need to keep your rig riding smooth and staying strong.

Why Upgrade Your Suspension Components?

It’s simple. Worn-out suspension parts mess with your ride quality, handling, tire wear—even your fuel economy. Replacing those tired components with quality aftermarket options helps your truck handle better, ride smoother, and last longer. Need better control on turns? Grab some new king pins or tie rods. Want less bounce and more comfort? Swap in some high-performance shocks and bushings. Looking for frame parts that can actually take a hit? We’ve got heavy-duty rails and brackets built to take on anything.

Fitment? Covered.

Whether you drive a Peterbilt, Kenworth, Freightliner, or any other big-name truck, we’ve got parts that match your make and model. Plus, we carry universal options if you’re customizing your setup.

Better Ride. Longer Life. Less Downtime.

These aren’t just parts—they’re peace of mind. Keep your suspension tight, your steering straight, and your chassis solid. That means more time on the road and less time in the shop. So if your rig’s starting to feel a little rough—or you’re just ready for an upgrade—check out our full selection of frame and suspension parts. We’ll help you get back to hauling with confidence.