The 4 State Trucks Blog
Buyerâs Guide: Choosing the Right Semi Truck Heat Shield
A semi truck’s exhaust pipe heat shield is more than just some polished piece of metal.
It’s the only thing that stands between those searing hot exhaust fumes and your sleek-looking chrome, paint, and fuel tank end caps and straps.
If you’re looking for an in-depth guide to how to buy the best heat shield for your semi truck, this is it.
In this post, we’ll cover design options, the science behind heat shields, and the top-picks for your truck make/model.
Wh
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10th Oct 2025
Semi Truck Winter Fronts: Useful or Outdated?
So, you're prepping your big rig for a cold and rainy season and you're thinking about winter fronts for your semi truck.
Are they an outdated relic from the past or a useful seasonal accessory for a saavy owner-operator?
Here are the key points you have to know:
Winter fronts are only applicable to trucks that operate in extreme cold (-22F) – especially if you’re driving through rain, sleet, and corrosive road salt. Frozen chunks of ice can accumulate in your front grill and
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7th Oct 2025
Peterbilt Clutch Parts: A No-Nonsense Guide for Owner-Operators
Your Peterbilt clutch is a small, but critical part that connects the engine power to the transmission.
Without it working right, you'll have trouble stopping, idling, or shifting. Although most new Peterbilt models don't operate on a clutch - a lot of older models do.
Peterbilt Models: 379, 389, 589, 567, 579.
And if you're looking for tips on replacing clutch parts or learn more about what they do, this post is for you.
Here’s What a Semi Truck Clutch Does
By pressing the foo
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3rd Oct 2025
Preventative Maintenance Checklist for Semi Trucks
Every truck driver knows one thing: semi-truck repairs are a nightmare for the pocketbook.
Sticking to a solid, consistent maintenance schedule is the best way to prevent this from happening. But like any good habit, it’s something we tend to put off for tomorrow…until it’s too late!
Your truck is your income. Preventative maintenance is a business strategy.
In this post, we’ll cover the need for a preventative maintenance checklist, and some of the common replacem
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30th Sep 2025
Semi Truck Buying Guide: Questions to Ask Before Investing in a Rig
Choosing to invest your hard-earned dollars into a class 8 big rig is a massive decision.
And if you're buying a semi truck for the first-time, there's bound to be a tsunami of details being hurled your way, from warranty information and spec'ing parameters to various market options. Yup. It's daunting.
Thankfully, we've put together a list of the TOP QUESTIONS TO ASK before investing money into a semi truck.
Want to know your truck's target rate per mile?
Calculate your CPM here.
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26th Sep 2025