The 4 State Trucks Blog

You're driving at 70 mph, but your dash says 0. Each shift jerks you forward and the cruise control won't stay on. Sound familiar? It's your Peterbilt speed sensor that's breaking down.  Buy a low-cost speed sensor replacement ahead of time and store it for a rainy day. It can prevet a lot of costly downtime.  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 whi …

Decorative light panels are an outstanding way to start personalizing your truck. Air breather panels offer tremendous visual appeal and can elevate your big rig's nighttime appearance. There are five main styles of air cleaner panels you can buy: Vortox, Nelson, Donaldson, Donaldson Premium, and Donaldson Preferred Fit. The Types of Air Cleaners for Semi Trucks Explained You can even get custom engraved air breather panels with laser-etched logos or names to further personalize your big rig. Mo …

If there's one thing that a truck driver needs it's more storage space. Buying the right heavy-duty commercial truck storage boxes is one of the most useful purchases you can make. Here are some of the best aftermarket semi truck toolboxes to improve your storage capacity while adding style to your big rig.  In this guide, we'll cover the different brands, materials, and design options you can choose from.  Heavy Duty Savings! Find step boxes to accentuate your big rig. SHOP STEP B …

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 handling tasks in agriculture, construction, bulk hauling or other industries. But if you're already running dump trailers, walking floors, or tankers, then accurately installing a wetline kit ensures solid performance and profitability. Incorrect installs can lead to thousands of dollars down the drain on r …

When it comes to your semi truck’s power system, batteries are the lifeline for nearly any application, from your lighting to your hotel loads (interior appliances). In this brief guide, we’ll cover how to swap out and maintain your commercial truck’s batteries, as well as what battery cover boxes you should buy for maximum protection. Here’s the fastest way: disconnect the negative cables first, remove the old batteries, clean off the connections, and install a matching …