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Western Star Truck Parts

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • Stainless Steel Recessed Air Line Box Radius Bottom W/ Flange, Trailer Air, 2 7-Way Hookups

    Stainless Steel Recessed Air Line Box Radius Bottom W/ Flange, Trailer Air, 2 7-Way Hookups

    IOWA CUSTOMS

    $594.99
    Stainless Steel Recessed Air Line Box Radius Bottom W/ Flange, Trailer Air & 2 7-Way HookupsThis quality Iowa Customs recessed air line box fits most trucks. It is made of polished stainless steel...
    09-050400010
    SKU:
    09-050400010
    Truck Class:
    Universal
    Make:
    Universal Items
    Material Options:
    Stainless Steel
    Style Options:
    Flush Mount
    Finish Options:
    Polished
    Product Type:
    Frame & Chassis
    $594.99
    Qty in Cart: 0
    Price:
    $594.99
    Subtotal:
  • Smooth Aluminum Recessed Air Line Box 45 Degree Front W/ Flange, Trailer Air, 7-Way, 4/6-Way Hookups

    Smooth Aluminum Recessed Air Line Box 45 Degree Front W/ Flange, Trailer Air, 7-Way, 4/6-Way Hookups

    IOWA CUSTOMS

    $490.99
    Smooth Aluminum Recessed Air Line Box 45 Degree Front W/ Flange, Trailer Air, 7-Way & 4/6-Way HookupsThis quality Iowa Customs recessed air line box fits most trucks. It is made of lightweight...
    09-050400006
    SKU:
    09-050400006
    Truck Class:
    Universal
    Make:
    Universal Items
    Material Options:
    Aluminum
    Style Options:
    Flush Mount
    Finish Options:
    Smooth
    Product Type:
    Frame & Chassis
    $490.99
    Qty in Cart: 0
    Price:
    $490.99
    Subtotal:
  • Stainless Steel Recessed Air Line Box 45 Degree Front W/ Flange, Trailer Air, 7-Way, 4/6-Way Hookups

    Stainless Steel Recessed Air Line Box 45 Degree Front W/ Flange, Trailer Air, 7-Way, 4/6-Way Hookups

    IOWA CUSTOMS

    $610.99
    Stainless Steel Recessed Air Line Box 45 Degree Front W/ Flange, Trailer Air, 7-Way & 4/6-Way HookupsThis quality Iowa Customs recessed air line box fits most trucks. It is made of polished stainless...
    09-050400005
    SKU:
    09-050400005
    Truck Class:
    Universal
    Make:
    Universal Items
    Finish Options:
    Polished
    Style Options:
    Flush Mount
    Material Options:
    Stainless Steel
    Product Type:
    Frame & Chassis
    $610.99
    Qty in Cart: 0
    Price:
    $610.99
    Subtotal:
  • Smooth Aluminum Recessed Air Line Box 45 Degree Front W/ Flange, Trailer Air, 2 7-Way Hookups

    Smooth Aluminum Recessed Air Line Box 45 Degree Front W/ Flange, Trailer Air, 2 7-Way Hookups

    IOWA CUSTOMS

    $490.99
    Smooth Aluminum Recessed Air Line Box 45 Degree Front W/ Flange, Trailer Air & 2 7-Way HookupsThis quality Iowa Customs recessed air line box fits most trucks. It is made of lightweight smooth...
    09-050400004
    SKU:
    09-050400004
    Truck Class:
    Universal
    Make:
    Universal Items
    Material Options:
    Aluminum
    Finish Options:
    Smooth
    Style Options:
    Flush Mount
    Product Type:
    Frame & Chassis
    $490.99
    Qty in Cart: 0
    Price:
    $490.99
    Subtotal:
  • Stainless Steel Recessed Air Line Box 45 Degree Front W/ Flange, Trailer Air, 2 7-Way Hookups

    Stainless Steel Recessed Air Line Box 45 Degree Front W/ Flange, Trailer Air, 2 7-Way Hookups

    IOWA CUSTOMS

    $595.99
    Stainless Steel Recessed Air Line Box 45 Degree Front W/ Flange, Trailer Air & 2 7-Way HookupsThis quality Iowa Customs recessed air line box fits most trucks. It is made of polished stainless steel...
    09-050400003
    SKU:
    09-050400003
    Truck Class:
    Universal
    Make:
    Universal Items
    Finish Options:
    Polished
    Style Options:
    Flush Mount
    Material Options:
    Stainless Steel
    Product Type:
    Frame & Chassis
    $595.99
    Qty in Cart: 0
    Price:
    $595.99
    Subtotal:
  • Stainless Steel Recessed Air Line Box 45 Degree Front W/ Flange, Trailer Air, 7-Way Hookup

    Stainless Steel Recessed Air Line Box 45 Degree Front W/ Flange, Trailer Air, 7-Way Hookup

    IOWA CUSTOMS

    $595.99
    Stainless Steel Recessed Air Line Box 45 Degree Front W/ Flange, Trailer Air & 7-Way HookupThis quality Iowa Customs recessed air line box fits most trucks. It is made of polished stainless steel...
    09-050400002
    SKU:
    09-050400002
    Truck Class:
    Universal
    Make:
    Universal Items
    Material Options:
    Stainless Steel
    Style Options:
    Flush Mount
    Finish Options:
    Polished
    Product Type:
    Frame & Chassis
    $595.99
    Qty in Cart: 0
    Price:
    $595.99
    Subtotal:
  • FREE SHIPPING OVER $249
    CSM Frame Pinch Bar For Deck Plate Mounting

    CSM Frame Pinch Bar For Deck Plate Mounting

    CHROME SHOP MAFIA

    $28.27
    Frame Pinch Bar For Deck Plate Mounting By Chrome Shop Mafia* High Quality Frame Pinch Bar * Made Of Aluminum* Used For Mounting Deck Plates (Deck Plate Not Included) - Deck Plates - Center Light...
    09-050344
    SKU:
    09-050344
    Length Options:
    32 Inch
    Location:
    Made In USA
    Truck Class:
    Universal
    Material Options:
    Aluminum
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    Availability:
    Ready To Ship
    $28.27
    Qty in Cart: 0
    Price:
    $28.27
    Subtotal:
  • 18 Inch Slide-In Rail Recessed Airline Box Deck Plate W/ Trailer Air & 1 Hole For 7-Way Plug Smooth Aluminum

    18 Inch Slide-In Rail Recessed Airline Box Deck Plate W/ Trailer Air & 1 Hole For 7-Way Plug Smooth Aluminum

    IOWA CUSTOMS

    $571.99
    Smooth Aluminum Slide-In Rail Deck Plate-18 Inch Recessed Airline BoxUpgrade your truck with Iowa Customs' Recessed Airline Box with Trailer Air and hole for a 7 way plug! This sleek aluminum...
    09-0503114
    SKU:
    09-0503114
    Truck Class:
    Universal
    Make:
    Universal Items
    Finish Options:
    Smooth
    Style Options:
    Flush Mount
    Material Options:
    Aluminum
    Product Type:
    Frame & Chassis
    Availability:
    Ready To Ship
    $571.99
    Qty in Cart: 0
    Price:
    $571.99
    Subtotal:
  • Recessed Air Line Box 18 Inch Aluminum W/ Holes For Trailer Air And 2 Electric 7 Way Plugs

    Recessed Air Line Box 18 Inch Aluminum W/ Holes For Trailer Air And 2 Electric 7 Way Plugs

    IOWA CUSTOMS

    $487.99
    Iowa Customs Aluminum 18 Inch Recessed Air Line Box W/ Trailer Air And 2 Electric 7 Way Plugs* High Quality Air Line Box* Made Of Aluminum* 18 Inch* Recessed * With Trailer Air * 2 Electric 7 Way...
    09-0503024
    SKU:
    09-0503024
    Truck Class:
    Universal
    Make:
    Universal Items
    Style Options:
    Flush Mount
    Material Options:
    Aluminum
    Product Type:
    Frame & Chassis
    $487.99
    Qty in Cart: 0
    Price:
    $487.99
    Subtotal:
  • Aluminum 20 Inch Deck Plate Filler

    Aluminum 20 Inch Deck Plate Filler

    IOWA CUSTOMS

    $294.99
    Deck Plate 20 Inch Filler Section AluminumUpgrade your Iowa Customs frame deck plates with this 20-inch smooth aluminum filler section. The easy-to-install flange attachment ensures a secure fit, so...
    09-0503021
    SKU:
    09-0503021
    Truck Class:
    Universal
    Make:
    Universal Items
    Length Options:
    20 Inch
    Style Options:
    Flush Mount
    Material Options:
    Aluminum
    Product Type:
    Frame & Chassis
    $294.99
    Qty in Cart: 0
    Price:
    $294.99
    Subtotal:
  • FREE SHIPPING
    Aluminum Deck Plate 18 Inch Sectional with Air line Box With Openings For Trailer Air & 7-Way Hookups

    Aluminum Deck Plate 18 Inch Sectional with Air line Box With Openings For Trailer Air & 7-Way Hookups

    IOWA CUSTOMS

    $456.99
    Sectional Deck Plate 18 Inch Aluminum with Air line BoxThis smooth aluminum deck plate measures 18 inches with a recessed air line box for easy integration of air lines. The box is designed to...
    09-0503013
    SKU:
    09-0503013
    Truck Class:
    Universal
    Make:
    Universal Items
    Style Options:
    Flush Mount
    Material Options:
    Aluminum
    Product Type:
    Frame & Chassis
    Availability:
    Ready To Ship
    $456.99
    Qty in Cart: 0
    Price:
    $456.99
    Subtotal:
  • On Sale
    Limited Quantity Available
    12 Inch Aluminum Sectional Deck Plate Filler Panel

    12 Inch Aluminum Sectional Deck Plate Filler Panel

    IOWA CUSTOMS

    Now: $118.99
    Was: $169.99
    Sectional Deck Plate 12 Inch Aluminum Filler Panel* Made Of High Quality Aluminum* 12 Inch* Made In USA* Sold Individually* Warranty On Deck Plate Filler Panels Against Defects In Workmanship &...
    09-0503012
    SKU:
    09-0503012
    Truck Class:
    Universal
    Make:
    Universal Items
    Material Options:
    Aluminum
    Style Options:
    Surface Mount
    Product Type:
    Frame & Chassis
    Availability:
    Ready To Ship
    Now: $118.99
    Was: $169.99
    Qty in Cart: 0
    Price:
    Now: $118.99
    Was: $169.99
    Subtotal:
  • 304 SS 18 Inch Recessed Air Line Box Sectionalized Deck Plate W/ 2 Air & 7-Way Cutout

    304 SS 18 Inch Recessed Air Line Box Sectionalized Deck Plate W/ 2 Air & 7-Way Cutout

    IOWA CUSTOMS

    $655.99
    18 Inch 304 Stainless Steel Recessed Air Line Box Sectionalized Deck Plate W/ 2 Air & 7-Way CutoutOrganize connectors on the back of your truck with this 18 inch recessed air line box by Iowa Customs...
    09-050300026
    SKU:
    09-050300026
    Truck Class:
    Universal
    Make:
    Universal Items
    Material Options:
    Stainless Steel
    Style Options:
    Flush Mount
    Product Type:
    Frame & Chassis
    Availability:
    Ready To Ship
    $655.99
    Qty in Cart: 0
    Price:
    $655.99
    Subtotal:
  • 304 Stainless Steel 24 Inch Deck Plate Filler Section

    304 Stainless Steel 24 Inch Deck Plate Filler Section

    IOWA CUSTOMS

    $466.99
    24 Inch 304 Stainless Steel Deck Plate Filler SectionDress up your truck with this stainless steel 24-inch plate filler. Part of Iowa Customs patented sectional deck place system, this plate filler...
    09-050300023
    SKU:
    09-050300023
    Truck Class:
    Universal
    Make:
    Universal Items
    Style Options:
    Surface Mount
    Material Options:
    Stainless Steel
    Product Type:
    Frame & Chassis
    $466.99
    Qty in Cart: 0
    Price:
    $466.99
    Subtotal:
  • Smooth Aluminum 22 Inch Deck Plate Filler Section

    Smooth Aluminum 22 Inch Deck Plate Filler Section

    IOWA CUSTOMS

    $294.99
    22 Inch Smooth Aluminum Deck Plate Filler SectionDress up your truck with this lightweight smooth aluminum 22-inch plate filler. Part of Iowa Customs patented sectional deck place system, this plate...
    09-050300022
    SKU:
    09-050300022
    Truck Class:
    Universal
    Make:
    Universal Items
    Finish Options:
    Smooth
    Style Options:
    Surface Mount
    Material Options:
    Aluminum
    Product Type:
    Frame & Chassis
    $294.99
    Qty in Cart: 0
    Price:
    $294.99
    Subtotal:
  • 304 Stainless Steel 22 Inch Deck Plate Filler Section

    304 Stainless Steel 22 Inch Deck Plate Filler Section

    IOWA CUSTOMS

    $453.99
    22 Inch 304 Stainless Steel Deck Plate Filler SectionDress up your truck with this stainless steel 22-inch plate filler. Part of Iowa Customs patented sectional deck place system, this plate filler...
    09-050300021
    SKU:
    09-050300021
    Truck Class:
    Universal
    Make:
    Universal Items
    Material Options:
    Stainless Steel
    Style Options:
    Surface Mount
    Product Type:
    Frame & Chassis
    $453.99
    Qty in Cart: 0
    Price:
    $453.99
    Subtotal:
  • Smooth Aluminum 24 Inch Deck Plate Filler Section

    Smooth Aluminum 24 Inch Deck Plate Filler Section

    IOWA CUSTOMS

    $310.99
    24 Inch Smooth Aluminum Deck Plate Filler SectionDress up your truck with this lightweight smooth aluminum 24-inch plate filler. Part of Iowa Customs patented sectional deck place system, this plate...
    09-050300020
    SKU:
    09-050300020
    Truck Class:
    Universal
    Make:
    Universal Items
    Material Options:
    Aluminum
    Style Options:
    Surface Mount
    Finish Options:
    Smooth
    Product Type:
    Frame & Chassis
    $310.99
    Qty in Cart: 0
    Price:
    $310.99
    Subtotal:
  • 304 Stainless Steel 20 Inch Deck Plate Filler Section

    304 Stainless Steel 20 Inch Deck Plate Filler Section

    IOWA CUSTOMS

    $436.99
    20 Inch 304 Stainless Steel Deck Plate Filler SectionDress up your truck with this stainless steel 20-inch plate filler. Part of Iowa Customs patented sectional deck place system, this plate filler...
    09-050300019
    SKU:
    09-050300019
    Truck Class:
    Universal
    Make:
    Universal Items
    Style Options:
    Surface Mount
    Material Options:
    Stainless Steel
    Product Type:
    Frame & Chassis
    $436.99
    Qty in Cart: 0
    Price:
    $436.99
    Subtotal:
  • Smooth Aluminum 18 Inch Deck Plate Filler Section

    Smooth Aluminum 18 Inch Deck Plate Filler Section

    IOWA CUSTOMS

    $265.99
    18 Inch Smooth Aluminum Deck Plate Filler SectionDress up your truck with this lightweight smooth aluminum 18-inch plate filler. Part of Iowa Customs patented sectional deck place system, this plate...
    09-050300018
    SKU:
    09-050300018
    Truck Class:
    Universal
    Make:
    Universal Items
    Finish Options:
    Smooth
    Style Options:
    Surface Mount
    Material Options:
    Aluminum
    Product Type:
    Frame & Chassis
    $265.99
    Qty in Cart: 0
    Price:
    $265.99
    Subtotal:
  • 304 Stainless Steel 18 Inch Deck Plate Filler Section

    304 Stainless Steel 18 Inch Deck Plate Filler Section

    IOWA CUSTOMS

    $405.99
    18 Inch 304 Stainless Steel Deck Plate Filler SectionDress up your truck with this lightweight smooth stainless steel 14-inch plate filler. Part of Iowa Customs patented sectional deck place system,...
    09-050300017
    SKU:
    09-050300017
    Truck Class:
    Universal
    Make:
    Universal Items
    Material Options:
    Stainless Steel
    Style Options:
    Surface Mount
    Product Type:
    Frame & Chassis
    $405.99
    Qty in Cart: 0
    Price:
    $405.99
    Subtotal:
  • Total: items /

Adding your products to cart

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 OEM 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 OEM - 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.


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