Shop Western Star Truck Parts & Accessories

Western Star Truck Parts

Tough jobs call for tough trucks. And when your Western Star needs parts, you want upgrades that can keep up. Whether you're driving a 4700 series, 4900, or the sleek 5700XE, we’ve got the aftermarket parts to match your truck’s power and personality.

Why Buy Aftermarket Western Star Parts?

- Save money over OEM without sacrificing quality - Upgrade performance with improved durability and function. - Customize your rig inside and out for comfort, style, or branding. - Stay DOT-compliant with lighting, mirrors, and safety upgrades. These parts aren’t just about replacing the old stuff. They’re about boosting what your truck can do—and how good it looks doing it.

Get the Job Done—And Look Good Doing It

We carry Western Star exterior and interior parts built for hard-working trucks. From rugged 5700xe truck bumpers to stylish chrome trim, our components are designed to perform under pressure—and turn heads while doing it. Need replacement parts to stay road-ready? We’ve got them. Want to customize your ride with aftermarket accessories or truck headlights that reflect your brand? You’ll find those here too.

Built for Fleets, Shops & Owner-Ops

Whether you’re wrenching in your shop or managing a fleet, 4 State makes it easy to shop Western Star truck components. Our inventory fits a wide range of models and job needs—from long-haul comfort upgrades to workhorse body parts built for logging, oilfield, or construction routes. We stock: - Cab and sleeper parts. - Engine and performance components. - Lights, visors, fenders, hoods, grilles, and more.

Let’s Get You Back on the Road

We know downtime costs money. That’s why we make it easy to shop Western Star parts online—fast shipping, expert support, and a huge selection of heavy-duty commercial truck parts ready to roll. Ready to make your rig better than new?

Frequently Asked Questions About Western Star Truck Parts

What year models do your Western Star replacement parts fit, and how can I verify compatibility?

Our Western Star parts are designed to fit specific model years and configurations. Most aftermarket parts cover models from 2002 to present, including the 4700, 4800, 4900, and 5700 series. To verify compatibility, check your VIN number and compare it with the fitment details listed on each product page. If you're unsure, contact our support team with your truck's year, model, and VIN - we'll confirm the exact fit before you order.

Are these genuine OEM Western Star parts or aftermarket alternatives?

We carry both OEM and high-quality aftermarket Western Star parts. Aftermarket options typically offer 30-50% savings while maintaining durability standards. Our aftermarket parts are manufactured from grade 304 stainless steel or heavy-duty chrome-plated steel, matching or exceeding OEM specifications. Each product listing clearly indicates whether it's OEM or aftermarket, along with material specifications and warranty details.

What tools and expertise do I need to install Western Star bumpers and exterior parts?

Most bumper installations require basic hand tools including socket sets, wrenches, and a torque wrench. Typical installation takes 2-4 hours for experienced mechanics. Bumpers usually mount using existing frame holes, though some models may require drilling. We recommend having a second person assist with heavy components like bumpers. Professional installation runs $200-500 depending on complexity. All parts include detailed instructions, and our tech support can walk you through any challenges.

What's the difference between chrome, stainless steel, and painted finishes for longevity?

Stainless steel offers the best corrosion resistance and typically lasts 10-15 years without pitting or rust. Chrome-plated steel provides excellent shine but may show wear after 5-7 years in harsh conditions. Painted finishes are most affordable but require touch-ups every 3-5 years. For trucks operating in salt-heavy regions, we strongly recommend stainless steel. Chrome works well for moderate climates with regular washing and maintenance.

Do your Western Star parts come with mounting hardware and warranties?

Yes, all bumpers and major components include necessary mounting hardware unless specifically noted. Standard warranties range from 1 year for chrome parts to 3 years for stainless steel components, covering defects in materials and workmanship. Electrical components typically carry 90-day warranties. Keep your receipt and register products online for faster warranty service. Note that warranties don't cover damage from improper installation or road hazards.