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

Gray Vinyl Armrest Seat Covers

BOSTROM TRUCK SEATS

MSRP:

$55.99

Was:

Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksRight Side Gray Vinyl Armrest Seat CoversGray Vinyl Armrest Covers For Right Side Of Seat* High Quality...

PPR_299973

SKU:

PPR_299973

Product Type:

Seats

Location:

Made In USA

Material Options:

Vinyl

Position:

Driver Side

Color:

Gray

Position:

Passenger Side

Make:

Universal Items

MSRP:

$55.99

Was:

Qty in Cart: 0

Price:

MSRP:

$55.99

Was:

Subtotal:
2 Inch Beehive Light W/ Stainless Steel Rim, Pigtail & LED Color Options

GRAND GENERAL

MSRP:

Now: $18.43 - $19.91

Was:

Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks2 Inch Beehive Light Amber LED / Clear Lens W/ SS Rim And Pigtail2 Inch Beehive Amber/Clear LED Light...

PPR_299997

SKU:

PPR_299997

Product Type:

Lighting

Material Options:

Stainless Steel

Color:

Red

Diameter Options:

2 Inch

Color:

Amber/Clear

Style Options:

Beehive

Make:

Universal Items

MSRP:

Now: $18.43 - $19.91

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $18.43 - $19.91

Was:

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Wheel Bearing Cone W/ Bore Diameter Options

AUTOMANN USA

MSRP:

Now: $19.65 - $24.28

Was:

Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks2.625 Inch Wheel Bearing Cone Replaces 00929406, Hm212049Replacement 2.625 Inch Wheel Bearing Cone*...

PPR_299970

SKU:

PPR_299970

Product Type:

Wheels

Shape Options:

Round

Diameter Options:

2 1/2 Inch

Make:

Universal Items

MSRP:

Now: $19.65 - $24.28

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $19.65 - $24.28

Was:

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Turnpike Truck Trim Stainless Steel Mudflap Weights With Back Lip - Pair

TURNPIKE TRUCK TRIM

MSRP:

Now: $38.75 - $43.85

Was:

Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksTurnpike Truck Trim 16 Inch SS Mud Flap Weights With Back Lip - Pair16 Inch Mud Flap Weights With Back...

PPR_299984

SKU:

PPR_299984

Height Options:

5 Inch

Height Options:

6 Inch

Width Options:

16 Inch

Width Options:

18 Inch

Product Type:

Mud Flaps

Material Options:

Stainless Steel

Width Options:

24 Inch

Make:

Universal Items

Ready To Ship:

Yes

MSRP:

Now: $38.75 - $43.85

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $38.75 - $43.85

Was:

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V-Band Elbow Turbocharger W/ O-Ring & Clamp For Cummins/Detroit

FULL TILT PERFORMANCE

MSRP:

Now: $196.72 - $204.96

Was:

Choose Option(s) to see description.Fitment** Fits Makes & Models W/ Cummins & Detroit Engines45 degree V-Band Elbow For Cummins / Detroit Turbocharger45 Degree Cummins / Detroit V-Band Elbow* High...

PPR_299980

SKU:

PPR_299980

Product Type:

Engine Parts

Location:

Made In USA

Degree Options:

45

Degree Options:

90

Make:

Universal Items

Style Options:

Elbow

MSRP:

Now: $196.72 - $204.96

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $196.72 - $204.96

Was:

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Turnpike Truck Trim 34 Inch 304 Stainless Steel Rear Center Panel W/ 4 Rnd 4 Inch & 6 Rnd 2 Inch Light Holes

TURNPIKE TRUCK TRIM

MSRP:

Now: $129.99 - $259.99

Was:

Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksTurnpike Truck Trim 34 X18 Inch 304 SS Rear Center Panel Rounded Corners W/ 4 Rnd 4 Inch & 6 Rnd 2 Inch...

PPR_299976

SKU:

PPR_299976

Height Options:

16 Inch

Height Options:

18 Inch

Material Options:

Stainless Steel

Product Type:

Bumpers

Height Options:

14 Inch

Length Options:

7 Inch

Width Options:

34 Inch

Light Options:

Without Lights

Make:

Universal Items

Ready To Ship:

Yes

MSRP:

Now: $129.99 - $259.99

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $129.99 - $259.99

Was:

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Driver/Passenger Side Outboard Mount Hub Assembly

AFTERMARKET

MSRP:

Now: $333.99 - $379.99

Was:

Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrailersOutboard Hub Assembly 1320Zmrt, 0415502021, E5113Replacement Outboard Hub Assembly* High Quality Hub...

PPR_299971

SKU:

PPR_299971

Truck Class:

Heavy Duty

Product Type:

Trailer

Make:

Trailer

Position:

Passenger Side

Position:

Driver Side

Make:

Universal Items

MSRP:

Now: $333.99 - $379.99

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $333.99 - $379.99

Was:

Subtotal:
CSM 96 Inch Stainless Steel Rear T Bar

CHROME SHOP MAFIA

MSRP:

$1,429.99

Was:

Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksCSM 96 Inch SS Rear T Bar With Radius Corners Without Light Holes OnlyCSM 96 Inch Rear T Bar With...

PPR_299967

SKU:

PPR_299967

Product Type:

Bumpers

Finish Options:

Polished

Light Options:

Without Lights

Style Options:

Angled

Width Options:

96 Inch

Material Options:

Stainless Steel

Make:

Universal Items

Height Options:

20 Inch

MSRP:

$1,429.99

Was:

Qty in Cart: 0

Price:

MSRP:

$1,429.99

Was:

Subtotal:
Roadworks Stainless Steel License Plate Holder Hinged W/ Supernova Vertical Light Holes, Width/Plate Quantity Options

ROADWORKS

MSRP:

Now: $67.99 - $205.99

Was:

Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksRoadworks 32 Inch Stainless Steel License Plate Holder Hinged W/ Supernova Vertical Light Holes32 Inch...

PPR_299968

SKU:

PPR_299968

Make:

Universal Items

Width Options:

32 Inch

Location:

Made In USA

Light Options:

Without Lights

Width Options:

60 Inch

Material Options:

Stainless Steel

Product Type:

Bumpers

MSRP:

Now: $67.99 - $205.99

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $67.99 - $205.99

Was:

Subtotal:
Hub Assembly Dura-Light Evolution For Dual Wheels

AFTERMARKET

MSRP:

Now: $452.99 - $455.99

Was:

Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksHub Assembly Dura-Light Evolution For Dual Aluminum WheelsLightweight Dura-Light Evolution Hub Assembly...

PPR_299969

SKU:

PPR_299969

Color:

Black

Product Type:

Wheels

Make:

Universal Items

MSRP:

Now: $452.99 - $455.99

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $452.99 - $455.99

Was:

Subtotal:
On Sale

Limited Quantity Available

Fitting Hose End W/ SAE Flare Options

OPP - ORIGINAL PARTS PROGRAM

MSRP:

Now: $7.04 - $37.73

Was: $39.99

Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksNo 10 SAE Flare 90 Degree Fitting Hose End Med24710NReplacement 10 SAE Flare 90 Degree Fitting Hose...

PPR_299965

SKU:

PPR_299965

Degree Options:

90

Product Type:

Engine Parts

Make:

Kenworth

Ready To Ship:

Yes

Degree Options:

45

Make:

Universal Items

MSRP:

Now: $7.04 - $37.73

Was: $39.99

Qty in Cart: 0

Price:

MSRP:

Now: $7.04 - $37.73

Was: $39.99

Subtotal:
FREE SHIPPING OVER $249

7 Color Changing Single Diode Snake Lights W/ 12 Inch Lead Wire- 2 Pack

TRUX ACCESSORIES

MSRP:

$19.43

Was:

Single Diode Snake LightsLooking to add colorful light to the vents in your truck or another small area of your cab? 4 State Trucks has this pack of two single diode snake lights that routinely...

09-160105100

SKU:

09-160105100

Color:

Various

Truck Class:

Universal

Material Options:

Plastic/Poly

Length Options:

12 Inch

Product Type:

Interior

Make:

Universal Items

Ready To Ship:

Yes

MSRP:

$19.43

Was:

Qty in Cart: 0

Price:

MSRP:

$19.43

Was:

Subtotal:
Rubber Cushion Clamps With 3/8 Inch Hole

AUTOMANN USA

MSRP:

Now: $8.46 - $22.17

Was:

Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks2 Inch Rubber Cushion Clamp With 3/8 Inch HoleRubber Cushioned Clamp for 2 Inch TubingProvides...

PPR_299963

SKU:

PPR_299963

Finish Options:

Galvanized

Material Options:

Rubber

Material Options:

Steel

Make:

Universal Items

Product Type:

Lighting

MSRP:

Now: $8.46 - $22.17

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $8.46 - $22.17

Was:

Subtotal:
3.5 X 5.25 Inch Front Park/Turn Light, Grommet Mount - Amber LED / Amber Lens

AUTOMANN USA

MSRP:

Now: $21.96 - $43.28

Was:

Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks3.5 X 5.25 Inch Front Park/Turn Light, Grommet Mount - Amber LED / Amber Lens12V Amber LED Turn Signal...

PPR_299955

SKU:

PPR_299955

Shape Options:

Rectangular

Product Type:

Lighting

Style Options:

Grommet Mount

Color:

Amber

Make:

Universal Items

Height Options:

3 1/2 Inch

Width Options:

5 1/4 Inch

MSRP:

Now: $21.96 - $43.28

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $21.96 - $43.28

Was:

Subtotal:
Mini Blade Replacement Fuses For ATM & MIN Series - 5 Pack

AUTOMANN USA

MSRP:

Now: $3.45 - $3.80

Was:

Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks5 Amp Mini Blade Fuses - 5 PackMini Blade Replacements for ATM and MIN Series* High Quality Mini Blade*...

PPR_299960

SKU:

PPR_299960

Product Type:

Air, Electrical, & Safety

Rating:

5.0 Amps

Rating:

3.0 Amps

Color:

Red

Color:

Yellow

Make:

Universal Items

MSRP:

Now: $3.45 - $3.80

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $3.45 - $3.80

Was:

Subtotal:
6 Inch Oval Strobe Warning Light Kit With Reflector

AUTOMANN USA

MSRP:

Now: $61.99 - $62.99

Was:

Improve vehicle visibility and on-site safety with the 6 Inch Oval Strobe Warning Light Kit With Reflector, designed for dependable warning performance. This LED strobe light features a...

PPR_299956

SKU:

PPR_299956

Color:

Amber/Green

Color:

Green

Style Options:

Grommet Mount

Product Type:

Lighting

Make:

Universal Items

Shape Options:

Oval

Ready To Ship:

Yes

MSRP:

Now: $61.99 - $62.99

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $61.99 - $62.99

Was:

Subtotal:
Automatic Reset Circuit Breaker With Vertical Mount- 12V/24V

AUTOMANN USA

MSRP:

Now: $4.61 - $4.63

Was:

Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks15A Circuit Breaker With Vertical Mount 66215, 82219012V - 24V Automatic Reset 15 Amp Circuit Breaker*...

PPR_299959

SKU:

PPR_299959

Product Type:

Air, Electrical, & Safety

Make:

Universal Items

MSRP:

Now: $4.61 - $4.63

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $4.61 - $4.63

Was:

Subtotal:
2-Inch Round Reflector

AUTOMANN USA

MSRP:

Now: $2.14 - $2.31

Was:

Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks2 Inch Amber Round Quick Mount ReflectorQuick Mount Round Amber ReflectorThis compact 2-inch round...

PPR_299958

SKU:

PPR_299958

Product Type:

Lighting

Color:

Red

Width Options:

2 Inch

Color:

Amber

Make:

Universal Items

Diameter Options:

2 Inch

MSRP:

Now: $2.14 - $2.31

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $2.14 - $2.31

Was:

Subtotal:
Mini Warning Slimline 1 Inch LED Strobe Light

AUTOMANN USA

MSRP:

Now: $50.99 - $59.99

Was:

Boost your vehicle's safety with the Mini Warning Slimline 1 Inch LED Strobe Light, available in 3, 3.5, or 4.5-inch sizes with amber or white LEDs and clear lenses. This slimline strobe provides...

PPR_299957

SKU:

PPR_299957

Color:

Amber/Clear

Color:

White

Style Options:

LED

Product Type:

Lighting

Make:

Universal Items

Height Options:

1 Inch

Width Options:

3 Inch

Width Options:

4 1/2 Inch

Shape Options:

Rectangular

Width Options:

4 Inch

Width Options:

3 1/2 Inch

Style Options:

Black Housing

MSRP:

Now: $50.99 - $59.99

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $50.99 - $59.99

Was:

Subtotal:
4 Inch Back Up Light, Grommet Mount

AUTOMANN USA

MSRP:

Now: $28.44 - $35.97

Was:

Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks4 Inch Back Up Light, Grommet Mount 17 DiodeUniversal 12V LED Backup LightThis 4-inch LED back-up light...

PPR_299954

SKU:

PPR_299954

Product Type:

Lighting

Length Options:

4 Inch

Style Options:

Grommet Mount

Make:

Universal Items

Diameter Options:

4 Inch

MSRP:

Now: $28.44 - $35.97

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $28.44 - $35.97

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.