null
Shop by Make, Model & Year
Semi-Truck Parts Universal

Semi-Truck Parts Universal

Looking for reliable heavy-duty semi-truck parts? Get fast shipping, easy returns, and quality products from trusted brands. Need help finding the right part? Our expert Part Pros are here for you every step of the way. Upgrade your rig hassle-free with 4 State Trucks' semi-truck parts!

Semi-Truck Parts Universal

We stock universal-fit aftermarket semi truck parts that will keep your truck, trailer, and business running strong—no matter what road you're on. Whether you need to upgrade your commercial truck for added performance, comfort, or visual appeal, our extensive inventory covers everything you need to repair or customize your big rig: engine and transmission parts, engine cooling components, LED lighting, chrome accessories, and more.

Class 8 Truck Parts Built to Last

These aren’t just parts—they're heavy-duty truck solutions made for real drivers doing real jobs. We carry trusted aftermarket parts that help you: - Run cooler, cleaner, and more efficiently. - Stand out with bold upgrades like chrome stacks and custom grilles. - Stay safe with reliable lighting, side mirrors, and brake parts. - Handle daily wear with durable filters, ergonomic tool storage boxes, connector hoses, and mounting gear. From cab and chassis to axles and exhaust, we stock it all for most makes and models of semi trucks and trailers.

Fast Access. Friendly Help.

Still unsure of what part you need? Our expert support team is here to assist. We'll help you get the perfect part or accessory for your rig so you can save time. Need something fast? Our site makes it easy to shop, compare, and get the parts out the door. Because downtime costs money—and you’ve got a job to do. Shop our vast selection of semi truck parts today.

Frequently Asked Questions About Semi-Truck Universal Parts

Will these universal parts fit my specific truck make and model?

Universal parts are designed to fit a wide range of semi-trucks, but compatibility varies by product. Each item listing includes specific fitment details such as mounting hole patterns, dimensions, and compatible years. We recommend checking the product specifications against your truck's measurements or contacting our support team with your truck's year, make, and model for confirmation. Common universal fits include Peterbilt 379/389, Kenworth W900/T800, Freightliner Cascadia/Classic, and International ProStar models from 1990-present.

What tools and hardware do I need for installation?

Most universal parts require basic hand tools including socket sets (typically 1/2" to 3/4"), wrenches, and drill bits for any custom mounting. Hardware is sometimes included but varies by product - check the "What's Included" section on each listing. You may need additional mounting brackets, bolts (usually Grade 8), washers, and thread locker. Professional installation typically takes 1-3 hours depending on the part. We provide installation guides for most products, and our tech support can walk you through specific challenges.

Are these parts made from durable materials that will last?

Our universal parts are manufactured from commercial-grade materials designed for long-haul durability. Chrome parts feature triple-plated chrome over steel or stainless steel bases. Plastic components use ABS or polycarbonate materials rated for extreme temperatures (-40?F to 180?F). Metal parts are typically 16-18 gauge steel or 304 stainless steel with corrosion-resistant coatings. Each product page specifies exact materials and includes warranty information, typically ranging from 1 year to lifetime coverage depending on the manufacturer.

What's the difference between OEM and aftermarket universal parts?

OEM universal parts are made by or for the original truck manufacturer and guarantee exact fit for specific models. Aftermarket universal parts offer broader compatibility across multiple truck brands and often provide better value. While OEM parts may have perfect color matching and integrated mounting points, quality aftermarket parts often exceed OEM durability standards and offer more style options. Both types are DOT compliant when applicable. Consider OEM for warranty requirements and aftermarket for customization and cost savings.

Can I return or exchange universal parts if they don't fit?

Yes, we offer a 30-day return policy on most universal parts in new, uninstalled condition with original packaging. Before ordering, we strongly recommend verifying measurements and compatibility to avoid return shipping costs. Our customer service team can help confirm fitment before you buy. Custom-ordered or modified parts may have different return policies. Exchange options are available if you need a different size or style. Contact us within 48 hours of delivery if you have any fitment concerns.


Introducing the Official 4 State Trucks Mobile App – Gear Up On the Go!