null

International WorkStar Frame Crossmembers & Covers

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • Recessed Air Line Box Stainless Steel W/ Holes For Electric & 2 Air Hook Ups

    Recessed Air Line Box Stainless Steel W/ Holes For Electric & 2 Air Hook Ups

    IOWA CUSTOMS

    $608.99
    Air Line Box* High Quality Recessed Air Line Box* Made Of Stainless Steel * With Openings for 1 Electric And 2 Air Hook Up* Sold Individually* Warranty On Recessed Air Line Box Against Defects In...
    09-0504318
    SKU:
    09-0504318
    Truck Class:
    Universal
    Make:
    Universal Items
    Material Options:
    Stainless Steel
    Style Options:
    Flush Mount
    Product Type:
    Frame & Chassis
    $608.99
    Qty in Cart: 0
    Price:
    $608.99
    Subtotal:
  • FREE SHIPPING
    Trough Style Air Line Box Stainless Steel By Brunner

    Trough Style Air Line Box Stainless Steel By Brunner

    BRUNNER FABRICATION

    $618.99
    20.25 X 15 Inch Trough Style Air Line Box By Brunner FabricationProtect the air line connection on your truck with this high quality trough style airline box by Brunners Fabrication Inc. It is made...
    09-0504310
    SKU:
    09-0504310
    Length Options:
    20 Inch
    Truck Class:
    Universal
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Style Options:
    Surface Mount
    Product Type:
    Air, Electrical, & Safety
    $618.99
    Qty in Cart: 0
    Price:
    $618.99
    Subtotal:
  • Stainless Steel Airline Box W/ 2 Electric Plug Holes & Bolted In Ends

    Stainless Steel Airline Box W/ 2 Electric Plug Holes & Bolted In Ends

    PHOENIX DESIGN

    $291.99
    SS Air Line Box W/ 2 Electric Plug Holes & Bolted In EndsThis air-line box uses strong 304 stainless steel to keep your electrical connections safe. It includes two handy electrical plug holes with...
    09-0504308
    SKU:
    09-0504308
    Truck Class:
    Universal
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $291.99
    Qty in Cart: 0
    Price:
    $291.99
    Subtotal:
  • Air Line Box Stainless Steel 32 Inch W/ Hole For Single Electric Plug- Bolted In Ends

    Air Line Box Stainless Steel 32 Inch W/ Hole For Single Electric Plug- Bolted In Ends

    PHOENIX DESIGN

    $277.99
    Airline Box W/ Single Electric PlugCrafted from stainless steel, the Air Line Box incorporates two cutouts for air lines. For increased durability and security, its ends are bolted. The overall...
    09-0504307
    SKU:
    09-0504307
    Truck Class:
    Universal
    Length Options:
    32 Inch
    Style Options:
    Surface Mount
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $277.99
    Qty in Cart: 0
    Price:
    $277.99
    Subtotal:
  • FREE SHIPPING
    Air Line Box Diamond Plate Aluminum W/ Single Electrical Plug Hole by CSM

    Air Line Box Diamond Plate Aluminum W/ Single Electrical Plug Hole by CSM

    CHROME SHOP MAFIA

    $454.99
    Aluminum Air Line Box w/ Single Electrical Plug Hole By Chrome Shop MafiaHide unsightly connectors on the back of your truck with this CSM Air Line Box. Made of lightweight aluminum with diamond...
    09-0504200
    SKU:
    09-0504200
    Truck Class:
    Universal
    Location:
    Made In USA
    Material Options:
    Aluminum
    Make:
    Universal Items
    Finish Options:
    Diamond Plate
    Style Options:
    Surface Mount
    Product Type:
    Frame & Chassis
    $454.99
    Qty in Cart: 0
    Price:
    $454.99
    Subtotal:
  • Smooth Aluminum Recessed Air Line Box With Holes For 7-Way Plug, Air Lines

    Smooth Aluminum Recessed Air Line Box With Holes For 7-Way Plug, Air Lines

    IOWA CUSTOMS

    $590.99
    Smooth Aluminum Recessed Air Line BoxThis quality Series 7 Iowa Customs recessed air line box fits most trucks. It is made of lightweight smooth aluminum and has pre-cut openings for trailer air...
    09-0504103
    SKU:
    09-0504103
    Truck Class:
    Universal
    Finish Options:
    Smooth
    Make:
    Universal Items
    Style Options:
    Flush Mount
    Material Options:
    Aluminum
    Product Type:
    Frame & Chassis
    $590.99
    Qty in Cart: 0
    Price:
    $590.99
    Subtotal:
  • Smooth Aluminum Air Line Box W/ 45 Degree Front, Flange, Trailer Air, 7-Way Hook-Up

    Smooth Aluminum Air Line Box W/ 45 Degree Front, Flange, Trailer Air, 7-Way Hook-Up

    IOWA CUSTOMS

    $503.99
    Smooth Aluminum Custom Air Line Box W/ Trailer, Air & 1 7-Way Hookup* High Quality Airline Box* Smooth Aluminum * 45 Degree Front * With Flange * Trailer Air And One 7 Way Hook Up* Sold Individually*...
    09-0504102
    SKU:
    09-0504102
    Truck Class:
    Universal
    Make:
    Universal Items
    Material Options:
    Aluminum
    Style Options:
    Surface Mount
    Finish Options:
    Smooth
    Product Type:
    Frame & Chassis
    $503.99
    Qty in Cart: 0
    Price:
    $503.99
    Subtotal:
  • Smooth Aluminum Recessed Air Line Box W/ Flange - Hydraulic, Trailer Air, 7 Way Hookups

    Smooth Aluminum Recessed Air Line Box W/ Flange - Hydraulic, Trailer Air, 7 Way Hookups

    IOWA CUSTOMS

    $587.99
    Smooth Aluminum Recessed Air Line Box W/ FlangeThis quality Iowa Customs recessed air line box fits most trucks. It is made of lightweight aluminum with a radius bottom and a flange. The air line box...
    09-050400017
    SKU:
    09-050400017
    Truck Class:
    Universal
    Location:
    Made In USA
    Material Options:
    Aluminum
    Make:
    Universal Items
    Finish Options:
    Smooth
    Product Type:
    Frame & Chassis
    Type Options:
    Flush Mount
    Style Options:
    Flanged
    $587.99
    Qty in Cart: 0
    Price:
    $587.99
    Subtotal:
  • Smooth Aluminum Recessed Air Line Box Radius Bottom W/ Flange, Trailer Air, 7-Way, 4/6-Way Hookups

    Smooth Aluminum Recessed Air Line Box Radius Bottom W/ Flange, Trailer Air, 7-Way, 4/6-Way Hookups

    IOWA CUSTOMS

    $530.99
    Smooth Aluminum Recessed Air Line Box Radius Bottom 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 aluminum...
    09-050400013
    SKU:
    09-050400013
    Truck Class:
    Universal
    Make:
    Universal Items
    Finish Options:
    Smooth
    Style Options:
    Flush Mount
    Material Options:
    Aluminum
    Product Type:
    Frame & Chassis
    $530.99
    Qty in Cart: 0
    Price:
    $530.99
    Subtotal:
  • Stainless Steel Recessed Air Line Box Radius Bottom W/ Flange, Trailer Air, 7-Way, 4/6-Way Hookups

    Stainless Steel Recessed Air Line Box Radius Bottom W/ Flange, Trailer Air, 7-Way, 4/6-Way Hookups

    IOWA CUSTOMS

    $595.99
    Stainless Steel Recessed Air Line Box Radius Bottom 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...
    09-050400012
    SKU:
    09-050400012
    Truck Class:
    Universal
    Make:
    Universal Items
    Material Options:
    Stainless Steel
    Finish Options:
    Polished
    Style Options:
    Flush Mount
    Product Type:
    Frame & Chassis
    $595.99
    Qty in Cart: 0
    Price:
    $595.99
    Subtotal:
  • Smooth Aluminum Recessed Air Line Box Radius Bottom W/ Flange, Trailer Air, 2 7-Way Hookups

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

    IOWA CUSTOMS

    $490.99
    Smooth Aluminum 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 lightweight aluminum with a...
    09-050400011
    SKU:
    09-050400011
    Truck Class:
    Universal
    Make:
    Universal Items
    Finish Options:
    Smooth
    Style Options:
    Flush Mount
    Material Options:
    Aluminum
    Product Type:
    Frame & Chassis
    $490.99
    Qty in Cart: 0
    Price:
    $490.99
    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 Radius Bottom W/ Flange, Trailer Air, 7-Way Hookup

    Smooth Aluminum Recessed Air Line Box Radius Bottom W/ Flange, Trailer Air, 7-Way Hookup

    IOWA CUSTOMS

    $503.99
    Smooth Aluminum Recessed Air Line Box Radius Bottom W/ Flange, Trailer Air & 7-Way HookupThis quality Iowa Customs recessed air line box fits most trucks. It is made of lightweight aluminum with a...
    09-050400009
    SKU:
    09-050400009
    Truck Class:
    Universal
    Make:
    Universal Items
    Finish Options:
    Smooth
    Material Options:
    Aluminum
    Product Type:
    Frame & Chassis
    Location:
    Made In USA
    Style Options:
    Recessed
    Type Options:
    Flush Mount
    $503.99
    Qty in Cart: 0
    Price:
    $503.99
    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
    Ready To Ship:
    Yes
    $28.27
    Qty in Cart: 0
    Price:
    $28.27
    Subtotal:
  • Slide In Rail Air Line Box Smooth Aluminum With Holes For 2 Air Lines, 7 Way Electric Plug, 4/6 Way Plug For Dyna Deck Modular Deck Plate Systems

    Slide In Rail Air Line Box Smooth Aluminum With Holes For 2 Air Lines, 7 Way Electric Plug, 4/6 Way Plug For Dyna Deck Modular Deck Plate Systems

    IOWA CUSTOMS

    $583.99
    Smooth Aluminum Slide In Rail Air Line Box W/ Mounting Brackets* High Quality Airline Box* Made Of Aluminum* Smooth Finish* Slide In Rail Design* Fits Dyna Deck Modular Deck Plate Systems* Includes: ...
    09-0503116
    SKU:
    09-0503116
    Location:
    Made In USA
    Truck Class:
    Universal
    Material Options:
    Aluminum
    Make:
    Universal Items
    Finish Options:
    Smooth
    Product Type:
    Frame & Chassis
    Style Options:
    Slide-In Rail Design
    Type Options:
    Flush Mount
    Ready To Ship:
    Yes
    $583.99
    Qty in Cart: 0
    Price:
    $583.99
    Subtotal:
  • Total: items /

Adding your products to cart

The International WorkStar Frame Crossmembers & Covers category offers essential components for maintaining and customizing your semi-truck. It includes walking beams, crossmember brackets, and fiberglass rear frame covers, all designed for durability, protection, and enhanced appearance. These parts are built to handle the demands of the road and improve both function and style. Whether replacing damaged parts or adding custom upgrades, this category provides high-quality solutions to keep your WorkStar running smoothly and looking great.

Frequently Asked Questions About International WorkStar Frame Crossmembers & Covers

What are frame crossmembers and covers used for on an International WorkStar?

Frame crossmembers connect the two main frame rails on your WorkStar, adding structural rigidity and helping the chassis handle torsional stress, load weight, and road vibration. Covers are used to shield components mounted near or on the frame, such as wiring, fuel lines, or crossmember sections, from road debris, moisture, and corrosion.

How do I know if a crossmember or cover will fit my specific WorkStar model?

Fitment can vary by model year, cab configuration, and chassis length, so it is important to check the part number and application details listed on each product page against your truck's VIN or existing part number before ordering. If you are unsure, our team can help confirm compatibility based on your truck's specifications.

What materials are these crossmembers and covers made from, and how do they hold up over time?

Most crossmembers are made from heavy-gauge steel to match OEM strength requirements, while covers may be steel or other durable materials depending on their application. Finish options, such as raw steel, primed, or coated, affect how well the part resists rust and wear, so choosing a finish suited to your operating environment can extend service life.

Can I install a replacement crossmember or cover myself, or do I need a professional?

Covers are generally straightforward to install with basic tools and can often be handled in a shop or even in the field. Crossmembers involve structural bolt patterns and sometimes welding or precise alignment with the frame rails, so we recommend having them installed by a qualified technician to ensure proper fit and safe load-bearing performance.

Will replacing a crossmember or cover affect my truck's warranty or DOT compliance?

Using a replacement part that matches OEM specifications should not negatively impact structural compliance, but any frame modification should be inspected to confirm it meets DOT frame integrity standards. If your truck is still under manufacturer warranty, check with International or your dealer before making frame-related repairs to avoid any warranty complications.


Introducing the Official 4 State Trucks Mobile App – Gear Up On the Go!