Western Star Semi Truck Parts and Accessories
Western Star trucks are known for strength, style, and staying powerâand your parts should match that same level of toughness. At 4 State Trucks, we stock premium Western Star semi truck parts and accessories to help keep your rig running right. Whether you're working a Western Star 4900 on the jobsite or hauling across the country in a Western Star 5700, weâve got the commercial truck parts you need to stay rolling.
High-Quality Parts for Every Western Star Truck Model
No matter what kind of job your Western Star handles, weâve got the semi truck parts to keep it in top shape. Our inventory includes replacement and aftermarket parts for both heavy-duty vocational models like the 4900 and long-haul tractors like the 5700.
From bumpers and grilles to cab accessories, lights, and engine componentsâwe carry a full selection of truck parts and accessories to restore or upgrade your ride. Built to meet the demands of serious drivers, this lineup keeps your truck working as hard as you do.
Top Features
When it comes to buying truck parts online, you want parts that are built to last. Thatâs why our Western Star parts are known for:
Fuel-efficient engine compatibility to reduce long-term costs.
Rugged design for commercial use, off-road durability, and long-haul wear.
Precise fitment across multiple configurations, including day cab and sleeper setups.
Parts made for easy installsâsaving you time and hassle.
Wide inventory of online truck parts for maintenance, upgrades, and customization.
Whether youâre replacing worn components or customizing your cab, youâll find parts that deliver both function and style.
Shop Commercial Truck Parts Online with 4 State Trucks
At 4 State Trucks, we make it easy to find and order Western Star truck parts online. Whether you drive a 4900 or 5700, our goal is to keep your truck running at peak performance with minimal downtime.
From must-have semi truck parts to hard-to-find upgrades, we offer affordable pricing, fast shipping, and expert support. Shop online truck parts today and keep your Western Star on the road and working hard.
Frequently Asked Questions About Western Star Truck Parts
What year models and series are your Western Star parts compatible with?
Our Western Star parts cover models from the early 2000s through current production years, including the 4700, 4800, 4900, 5700XE, and 6900 series. Each product listing specifies exact compatibility by year, model, and VIN range. For older Heritage models or specific configurations, we recommend contacting our support team with your VIN number to ensure proper fitment, as Western Star made several mid-year changes that can affect compatibility.
Are your aftermarket parts built to the same quality standards as OEM Western Star parts?
Our aftermarket parts are manufactured to meet or exceed OEM specifications, using heavy-duty materials like 304 stainless steel for chrome parts and 16-gauge steel for painted components. Many of our suppliers are the same manufacturers that produce parts for Western Star's assembly lines. Each part undergoes quality testing for proper fitment and durability. We back this with detailed warranties that match or exceed OEM coverage periods.
What are the most common installation challenges for Western Star bumpers and grilles?
The most frequent installation issues involve bracket alignment on 4900 series trucks due to frame variations, and electrical connections for LED-equipped bumpers on 5700XE models. Most installations require basic hand tools and take 2-4 hours. Pre-2010 models may need mounting hole modifications. We provide detailed installation guides with measurements, and our tech support can walk you through any fitment concerns before you start the installation.
What finish options are available, and how do they hold up in different climates?
We offer chrome-plated steel, polished stainless steel, painted steel, and powder-coated aluminum options. Chrome performs well in dry climates but requires regular maintenance in salt-heavy regions. Stainless steel offers the best corrosion resistance for coastal and winter road conditions. Painted finishes use automotive-grade primers and paints that resist chipping and fading for 5-7 years under normal conditions. Powder coating provides the most durable colored finish option.
Do you carry hard-to-find parts for discontinued Western Star models?
Yes, we maintain inventory for many discontinued models including the Heritage Classic, older 4900 variants, and pre-2005 4800 series trucks. Our network includes specialized manufacturers who produce limited runs of obsolete parts. If a part is not listed on our website, our parts specialists can often source it through our supplier network or recommend compatible alternatives that have been successfully used by other Western Star owners.
Western Star 4700 Trucks
Western Star 4900 Constellation Trucks
Western Star 4900 Heritage Trucks
Western Star 5700XE Trucks
Western Star 5900 SBA Trucks
Western Star Truck Parts
