Western Star Trucks

Looking for Western Star truck parts? At 4 State Trucks, you'll find everything from durable replacements to custom accessories for your rig. Explore and find the perfect parts for your Western Star truck today!

Product
Qty in Cart
Quantity
Price
Subtotal

Thread On Gearshift Knob With Adapter For Eaton Fuller 9/10 Speed

UNITED PACIFIC

MSRP:

$88.99

Was:

Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksThread On Chrome Flame Gearshift Knob With Adapter For Eaton Fuller 9/10 SpeedThread-On Flame Gearshift...

PPR_299865

SKU:

PPR_299865

Color:

Black

Finish Options:

Chrome-Plated

Product Type:

Interior

Make:

Universal Items

MSRP:

$88.99

Was:

Qty in Cart: 0

Price:

MSRP:

$88.99

Was:

Subtotal:
6 Inch Oval Double Fury Stop & Turn Light

UNITED PACIFIC

MSRP:

$21.35

Was:

Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks6 Inch Oval Double Fury Stop & Turn Light - Red To Amber LED / Clear Lens6 Inch Oval Double Fury Dual...

PPR_299858

SKU:

PPR_299858

Material Options:

Plastic/Poly

Product Type:

Lighting

Make:

Universal Items

Color:

Amber/Red

Color:

Red/White

Color:

Amber/Blue

Color:

Amber/White

Color:

Various

Color:

Amber/Purple

Color:

Amber/Green

Color:

Red/Purple

Color:

Red/Green

Shape Options:

Oval

Length Options:

6 Inch

Ready To Ship:

Yes

MSRP:

$21.35

Was:

Qty in Cart: 0

Price:

MSRP:

$21.35

Was:

Subtotal:
Watermelon Dual Function Double Fury Light Flush Mount Kit

UNITED PACIFIC

MSRP:

$26.11

Was:

Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksWatermelon Dual Function Double Fury Light Flush Mount Kit - Amber to Blue LED / Clear Lens17 Diode...

PPR_299860

SKU:

PPR_299860

Color:

Amber/Purple

Color:

Red/Green

Color:

Amber/Green

Color:

Amber/Red

Product Type:

Lighting

Color:

Red/Blue

Color:

Red/Purple

Material Options:

Plastic/Poly

Color:

Amber/Blue

Color:

Amber/White

Color:

Red/White

Make:

Universal Items

Ready To Ship:

Yes

Type Options:

Flush Mount

MSRP:

$26.11

Was:

Qty in Cart: 0

Price:

MSRP:

$26.11

Was:

Subtotal:
3/4 Inch Mini Dual Function Double Fury Clearance Marker Light

UNITED PACIFIC

MSRP:

$8.69

Was:

Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks3/4 Inch Mini Dual Function Double Fury Clearance Marker Light - Amber to Blue LED / Clear Lens3/4 Inch...

PPR_299859

SKU:

PPR_299859

Color:

Amber/Purple

Color:

Amber/Green

Color:

Red/Green

Color:

Red/Blue

Color:

Amber/Red

Product Type:

Lighting

Color:

Red/Purple

Style Options:

Grommet Mount

Color:

Amber/Blue

Color:

Amber/White

Color:

Red/White

Make:

Universal Items

Ready To Ship:

Yes

Diameter Options:

3/4 Inch

Material Options:

Stainless Steel

MSRP:

$8.69

Was:

Qty in Cart: 0

Price:

MSRP:

$8.69

Was:

Subtotal:
Dual Function Watermelon Reflector Sleeper Bunk Kit W/ Stainless Steel Bezel

UNITED PACIFIC

MSRP:

$42.53

Was:

Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksDual Function Watermelon Reflector Sleeper Bunk Kit With SS Bezel- Amber LED / Amber Lens17 Diode Dual...

PPR_299857

SKU:

PPR_299857

Color:

Amber

Color:

Amber/Clear

Product Type:

Lighting

Color:

Red

Material Options:

Plastic/Poly

Make:

Universal Items

Style Options:

Watermelon

Material Options:

Stainless Steel

Ready To Ship:

Yes

MSRP:

$42.53

Was:

Qty in Cart: 0

Price:

MSRP:

$42.53

Was:

Subtotal:
Dual Function GloLight Watermelon Sleeper Bunk Kit

UNITED PACIFIC

MSRP:

$42.53

Was:

Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksDual Function GloLight Watermelon Sleeper Bunk Kit Amber LED / Amber Lens9 Diode Dual Function GloLight...

PPR_299856

SKU:

PPR_299856

Color:

Amber/Clear

Color:

Red

Material Options:

Plastic/Poly

Product Type:

Lighting

Color:

Amber

Make:

Universal Items

Material Options:

Stainless Steel

Style Options:

Watermelon

MSRP:

$42.53

Was:

Qty in Cart: 0

Price:

MSRP:

$42.53

Was:

Subtotal:
Nylon Male Bullet Terminal

AUTOMANN USA

MSRP:

Now: $4.61 - $9.24

Was:

Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks16-14 Gauge Blue Nylon Bullet Terminal - 100 PackBullet 0.197 Inch 16-14 Gauge Nylon Terminal* High...

PPR_299854

SKU:

PPR_299854

Material Options:

Nylon

Product Type:

Air, Electrical, & Safety

Color:

Blue

Size Options:

16 Gauge

Color:

Red

Size Options:

22 Gauge

Make:

Universal Items

MSRP:

Now: $4.61 - $9.24

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $4.61 - $9.24

Was:

Subtotal:
Dual Function Glass Watermelon Sleeper Bunk Kit LED/Lens Color Options

UNITED PACIFIC

MSRP:

$40.21

Was:

Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksDual Function Glass Watermelon Sleeper Bunk Kit White LED / Clear LensDual Function Glass Watermelon...

PPR_299855

SKU:

PPR_299855

Color:

Amber

Color:

Amber/Clear

Material Options:

Glass

Product Type:

Lighting

Color:

Red

Color:

White

Make:

Universal Items

Style Options:

Watermelon

Material Options:

Stainless Steel

Ready To Ship:

Yes

MSRP:

$40.21

Was:

Qty in Cart: 0

Price:

MSRP:

$40.21

Was:

Subtotal:
Nylon Female Connector - 100 Pcs

AUTOMANN USA

MSRP:

Now: $10.39 - $11.55

Was:

Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks16-14 Gauge Blue Nylon Female Connector - 100 PackFemale R 0.197 Inch 16-14 Gauge Nylon* High Quality *...

PPR_299853

SKU:

PPR_299853

Color:

Blue

Color:

Red

Size Options:

16 Gauge

Size Options:

22 Gauge

Material Options:

Nylon

Product Type:

Air, Electrical, & Safety

Make:

Universal Items

MSRP:

Now: $10.39 - $11.55

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $10.39 - $11.55

Was:

Subtotal:
Quick Connect Terminal

AUTOMANN USA

MSRP:

Now: $8.08 - $18.50

Was:

Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks22-16 Gauge Red Heat Shrink Male Quick Connect - 50 PackMale Quick Connect 22-16 Ga Heat Shrink* High...

PPR_299852

SKU:

PPR_299852

Color:

Blue

Color:

Red

Product Type:

Air, Electrical, & Safety

Size Options:

12 Gauge

Color:

Yellow

Size Options:

16 Gauge

Material Options:

Nylon

Size Options:

22 Gauge

Make:

Universal Items

MSRP:

Now: $8.08 - $18.50

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $8.08 - $18.50

Was:

Subtotal:
4 Gauge Copper Lugs Stud - 10 Pack

AUTOMANN USA

MSRP:

Now: $10.16 - $10.17

Was:

Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks4 Gauge Copper Lug 5/16 Inch Stud - 10 PackLug Copper 4 GA 5/16 in Stud - 10pk* High Quality Lug*...

PPR_299850

SKU:

PPR_299850

Material Options:

Copper

Product Type:

Air, Electrical, & Safety

Size Options:

4 Gauge

Make:

Universal Items

MSRP:

Now: $10.16 - $10.17

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $10.16 - $10.17

Was:

Subtotal:
Ring Terminals - Various Styles, Gauges, Colors

AUTOMANN USA

MSRP:

Now: $5.50 - $25.43

Was:

Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks16-14 Gauge Blue Heat Shrink Spade Terminals No. 6 Stud - 50 PackSpade No 6 16-14GA Heat Shrink Pack*...

PPR_299851

SKU:

PPR_299851

Color:

Red

Color:

Blue

Size Options:

12 Gauge

Product Type:

Air, Electrical, & Safety

Color:

Yellow

Size Options:

16 Gauge

Material Options:

Nylon

Size Options:

22 Gauge

Make:

Universal Items

MSRP:

Now: $5.50 - $25.43

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $5.50 - $25.43

Was:

Subtotal:
Black Steel Center Fender Brackets

HOGEBUILT FENDERS

MSRP:

Now: $204.99 - $371.99

Was:

Choose Option(s) to see description.Black Steel Adjustable Fender Brackets For Center Or Rear Fender Mounts - Pair.Center Fender Brackets* High Quality Center Fender Bracket* Made Of Steel* Black...

PPR_299849

SKU:

PPR_299849

Location:

Made In USA

Material Options:

Steel

Product Type:

Rear Fenders

Position:

Driver Side

Finish Options:

Black Powder Coat

Position:

Passenger Side

Make:

Universal Items

Ready To Ship:

Yes

MSRP:

Now: $204.99 - $371.99

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $204.99 - $371.99

Was:

Subtotal:
Chrome Watermelon Light Sleeper Bunk LED Adapter - 1 PC Design

UNITED PACIFIC

MSRP:

$9.35

Was:

Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksChrome Watermelon Light Sleeper Bunk LED Adapter - Convex 1 PC Design2 Inch Mounting Light BracketThe...

PPR_299848

SKU:

PPR_299848

Finish Options:

Chrome-Plated

Material Options:

Plastic/Poly

Product Type:

Interior

Make:

Universal Items

Style Options:

Concave

Style Options:

Watermelon

Style Options:

Convex

Location:

Made In USA

Ready To Ship:

Yes

MSRP:

$9.35

Was:

Qty in Cart: 0

Price:

MSRP:

$9.35

Was:

Subtotal:
Minimizer 50 X 16.7 X 20 Inch Poly Chest Tool Box

MINIMIZER

MSRP:

$732.99

Was:

Simplify truck storage with the Minimizer 50 x 16.7 x 20 Inch Poly Chest Tool Box, designed for resilience, convenience, and long-term performance. Made from heavy-duty polyethylene, this chest...

PPR_299846

SKU:

PPR_299846

Color:

Black

Color:

Gray

Color:

White

Color:

Yellow

Location:

Made In USA

Color:

Red

Material Options:

Plastic/Poly

Height Options:

17 Inch

Product Type:

Toolboxes

Color:

Silver

Length Options:

50 Inch

Width Options:

20 Inch

Make:

Universal Items

Width Options:

16 5/8 Inch

Height Options:

20 Inch

Color:

Various

MSRP:

$732.99

Was:

Qty in Cart: 0

Price:

MSRP:

$732.99

Was:

Subtotal:
Plastic Bolt-On Fender Bracket Kit

MINIMIZER

MSRP:

Now: $771.99 - $848.99

Was:

Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksMinimizer Carbon Fiber Plastic Bolt-On Fender Bracket KitCarbon Fiber Plastic Bolt-on Bracket KitThe...

PPR_299845

SKU:

PPR_299845

Location:

Made In USA

Material Options:

Plastic/Poly

Finish Options:

Carbon Fiber

Product Type:

Rear Fenders

Finish Options:

Mirror

Style Options:

Bolt On

Make:

Universal Items

MSRP:

Now: $771.99 - $848.99

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $771.99 - $848.99

Was:

Subtotal:
Legendary Glass Watermelon Cab Light

LEGENDARY

MSRP:

$55.99

Was:

The Legendary Glass Watermelon Cab Light combines classic styling with durable performance. Its bullet-style glass lens is available in Amber/Amber or Amber/Clear, offering bright, consistent...

PPR_299844

SKU:

PPR_299844

Style Options:

Chrome Housing

Product Type:

Lighting

Color:

Amber

Material Options:

Glass

Make:

Universal Items

Ready To Ship:

Yes

MSRP:

$55.99

Was:

Qty in Cart: 0

Price:

MSRP:

$55.99

Was:

Subtotal:
FREE SHIPPING OVER $249

24 Inch 304 Stainless Steel Exhaust Grab Handle With Mounting Clamps

UNITED PACIFIC

MSRP:

Now: $131.99 - $141.99

Was:

Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks6 X 24 Inch Stainless Steel Exhaust Grab Handle With Mounting ClampsExhaust Grab Handle 24 Inch x 6...

PPR_299842

SKU:

PPR_299842

Length Options:

24 Inch

Material Options:

Stainless Steel

Product Type:

Exhaust

Diameter Options:

6 Inch

Truck Class:

Universal

Make:

Universal Items

Ready To Ship:

Yes

MSRP:

Now: $131.99 - $141.99

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $131.99 - $141.99

Was:

Subtotal:
8 Inch Translucent Smoke Battery Jumper Cables

AFTERMARKET

MSRP:

$56.99

Was:

Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks8 Inch Translucent Smoke Battery Jumper CablesTranslucent Battery Cables - OEM Replacement for Easy...

PPR_299839

SKU:

PPR_299839

Length Options:

8 Inch

Product Type:

Engine Parts

Make:

Universal Items

MSRP:

$56.99

Was:

Qty in Cart: 0

Price:

MSRP:

$56.99

Was:

Subtotal:
FREE SHIPPING

Merritt E-Z Mount Tool Box Mounting Kit

MERRITT

MSRP:

Now: $305.99 - $346.99

Was:

Reinforce your truck's toolbox setup with the Merritt E-Z Mount Tool Box Mounting Kit, built for strength, convenience, and long-lasting use. Constructed from high-quality zinc-plated steel, this...

PPR_299836

SKU:

PPR_299836

Position:

Kit Full

Location:

Made In USA

Length Options:

18 Inch

Truck Class:

Heavy Duty

Product Type:

Toolboxes

Material Options:

Steel

Make:

Universal Items

Ready To Ship:

Yes

Length Options:

24 Inch

Finish Options:

Zinc-Plated

MSRP:

Now: $305.99 - $346.99

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $305.99 - $346.99

Was:

Subtotal:

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Western Star Semi Truck Parts and Accessories

Western Star trucks are known for strength, style, and staying power—and 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 job site or hauling across the country in a Western Star 5700, we’ve 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, we’ve 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 components—we 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.

Best Features of Western Star Parts & Accessories

When it comes to buying truck parts online, you want parts that are built to last. That’s 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 installs—saving you time and hassle. Wide inventory of online truck parts for maintenance, upgrades, and customization. Whether you’re replacing worn components or customizing your cab, you’ll 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 OEM range. For older Heritage models or specific configurations, we recommend contacting our support team with your OEM 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.