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International 9900/i/ix Frame Crossmembers-Cov

Improve your International 9900/i/ix with premium frame crossmembers, retrofit kits, and walking beams. Explore our aftermarket options!
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  • 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:
  • FREE SHIPPING
    18 Inch Slide-In Rail Recessed Airline Box Deck Plate W/ Trailer Air And 2 Holes For 7-Way Plug Smooth Aluminum

    18 Inch Slide-In Rail Recessed Airline Box Deck Plate W/ Trailer Air And 2 Holes For 7-Way Plug Smooth Aluminum

    IOWA CUSTOMS

    $595.99
    Smooth Aluminum Slide-In Rail Deck Plate-18 Inch Recessed Airline Box W/ Trailer Air And 2 Holes For 7-Way PlugUpgrade your truck with Iowa Customs' Recessed Airline Box with Trailer Air and holes...
    09-0503115
    SKU:
    09-0503115
    Truck Class:
    Universal
    Make:
    Universal Items
    Material Options:
    Aluminum
    Style Options:
    Flush Mount
    Finish Options:
    Smooth
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $595.99
    Qty in Cart: 0
    Price:
    $595.99
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  • 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
    Ready To Ship:
    Yes
    $571.99
    Qty in Cart: 0
    Price:
    $571.99
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  • 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
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  • 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
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  • 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
    Ready To Ship:
    Yes
    $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
    Ready To Ship:
    Yes
    Now: $118.99
    Was: $169.99
    Qty in Cart: 0
    Price:
    Now: $118.99
    Was: $169.99
    Subtotal:
  • 304 Stainless Steel 12 Inch Sectionalized Deck Plate Filler Section

    304 Stainless Steel 12 Inch Sectionalized Deck Plate Filler Section

    IOWA CUSTOMS

    $268.99
    12 Inch 304 Stainless Steel Sectionalized Deck Plate Filler SectionDress up your truck with this stainless steel 12-inch plate filler. Part of Iowa Customs patented sectional deck place system, this...
    09-050300048
    SKU:
    09-050300048
    Truck Class:
    Universal
    Make:
    Universal Items
    Material Options:
    Stainless Steel
    Style Options:
    Surface Mount
    Product Type:
    Frame & Chassis
    $268.99
    Qty in Cart: 0
    Price:
    $268.99
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  • Smooth Aluminum On-Top Air Line Box Deck Plate W/ Trailer Air, 2 7-Way Hookups, 2 - 4 Inch Light Holes

    Smooth Aluminum On-Top Air Line Box Deck Plate W/ Trailer Air, 2 7-Way Hookups, 2 - 4 Inch Light Holes

    IOWA CUSTOMS

    $459.99
    On-Top Air Line Box Deck Plate W/ Trailer Air, 2 7-Way Hookups & 2 - 4 Inch Light Holes* High Quality Deck Plate Accessories* Made Of Smooth Aluminum* On-Top Airline Box * With Trailer Air Two 7-Way...
    09-050300047
    SKU:
    09-050300047
    Truck Class:
    Universal
    Make:
    Universal Items
    Material Options:
    Aluminum
    Style Options:
    Surface Mount
    Finish Options:
    Smooth
    Product Type:
    Frame & Chassis
    $459.99
    Qty in Cart: 0
    Price:
    $459.99
    Subtotal:
  • 304 Stainless Steel On-Top Air Line Box Deck Plate W/ Trailer Air, 2 7-Way Hookups, 2 - 4 Inch Light Holes

    304 Stainless Steel On-Top Air Line Box Deck Plate W/ Trailer Air, 2 7-Way Hookups, 2 - 4 Inch Light Holes

    IOWA CUSTOMS

    $512.99
    On-Top Air Line Box Deck Plate W/ Trailer Air, 2 7-Way Hookups & 2 - 4 Inch Light Holes* High Quality Deck Plate Accessories* Made Of Polished Stainless Steel* On-Top Airline Box * With Trailer Air...
    09-050300046
    SKU:
    09-050300046
    Truck Class:
    Universal
    Make:
    Universal Items
    Finish Options:
    Polished
    Style Options:
    Surface Mount
    Material Options:
    Stainless Steel
    Product Type:
    Frame & Chassis
    $512.99
    Qty in Cart: 0
    Price:
    $512.99
    Subtotal:
  • Smooth Aluminum On-Top Air Line Box Deck Plate W/ Trailer Air, 7-Way Hookup, 2 - 4 Inch Light Holes

    Smooth Aluminum On-Top Air Line Box Deck Plate W/ Trailer Air, 7-Way Hookup, 2 - 4 Inch Light Holes

    IOWA CUSTOMS

    $459.99
    On-Top Air Line Box Deck Plate W/ Trailer Air, 7-Way Hookup & 2 - 4 Inch Light Holes* High Quality Sectionalized Deck Plate* Made Of Smooth Aluminum* On-Top Airline Box * With Trailer Air * One 7-Way...
    09-050300045
    SKU:
    09-050300045
    Truck Class:
    Universal
    Make:
    Universal Items
    Material Options:
    Aluminum
    Finish Options:
    Smooth
    Style Options:
    Surface Mount
    Product Type:
    Frame & Chassis
    $459.99
    Qty in Cart: 0
    Price:
    $459.99
    Subtotal:
  • 304 Stainless Steel On-Top Air Line Box Deck Plate W/ Trailer Air, 7-Way Hookup, 2 - 4 Inch Light Holes

    304 Stainless Steel On-Top Air Line Box Deck Plate W/ Trailer Air, 7-Way Hookup, 2 - 4 Inch Light Holes

    IOWA CUSTOMS

    $512.99
    On-Top Air Line Box Deck Plate W/ Trailer Air, 7-Way Hookup & 2 - 4 Inch Light Holes* High Quality Deck Plate Accessories* Made Of Polished Stainless Steel* On-Top Airline Box * With Trailer Air One...
    09-050300044
    SKU:
    09-050300044
    Truck Class:
    Universal
    Make:
    Universal Items
    Finish Options:
    Polished
    Style Options:
    Surface Mount
    Material Options:
    Stainless Steel
    Product Type:
    Frame & Chassis
    $512.99
    Qty in Cart: 0
    Price:
    $512.99
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  • Paintable Stainless On-Top Air Line Box Sectionalized Deck Plate W/ Trailer Air, 7-Way, Hydraulic Hookups

    Paintable Stainless On-Top Air Line Box Sectionalized Deck Plate W/ Trailer Air, 7-Way, Hydraulic Hookups

    IOWA CUSTOMS

    $459.99
    On-Top Air Line Box Sectionalized Deck Plate W/ Trailer Air, 7-Way & Hydraulic HookupsThis Deck Plate Accessory is made from paintable stainless steel, so you can customize it to match your style. It...
    09-050300043
    SKU:
    09-050300043
    Truck Class:
    Universal
    Make:
    Universal Items
    Style Options:
    Surface Mount
    Product Type:
    Frame & Chassis
    Finish Options:
    Paintable
    Material Options:
    Stainless Steel
    Location:
    Made In USA
    $459.99
    Qty in Cart: 0
    Price:
    $459.99
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  • On-Top Air Line Box 304 Stainless Steel W/ Holes For Trailer Air, 7-Way, Hydraulic Hookups

    On-Top Air Line Box 304 Stainless Steel W/ Holes For Trailer Air, 7-Way, Hydraulic Hookups

    IOWA CUSTOMS

    $514.99
    On-Top Air Line Box W/ Trailer Air, 7-Way & Hydraulic Hookups* High Quality On-Top Airline Box * Made Of 304 Stainless Steel* #8 Polished Finish* Includes:   - Trailer Air   - Hydraulic Hook-Ups  -...
    09-050300042
    SKU:
    09-050300042
    Truck Class:
    Universal
    Make:
    Universal Items
    Finish Options:
    Polished
    Style Options:
    Surface Mount
    Material Options:
    Stainless Steel
    Product Type:
    Frame & Chassis
    Location:
    Made In USA
    Ready To Ship:
    Yes
    $514.99
    Qty in Cart: 0
    Price:
    $514.99
    Subtotal:
  • Smooth Aluminum On-Top Air Line Box Sectionalized Deck Plate W/ Trailer Air, 2 7-Way Hookups

    Smooth Aluminum On-Top Air Line Box Sectionalized Deck Plate W/ Trailer Air, 2 7-Way Hookups

    IOWA CUSTOMS

    $459.99
    On-Top Air Line Box Sectionalized Deck Plate W/ Trailer Air & 2 7-Way Hookups* High Quality Deck Plate Accessories* Made Of Smooth Aluminum* On-Top Airline Box * With Trailer Air And Two 7-Ways *...
    09-050300041
    SKU:
    09-050300041
    Truck Class:
    Universal
    Make:
    Universal Items
    Material Options:
    Aluminum
    Finish Options:
    Smooth
    Style Options:
    Surface Mount
    Product Type:
    Frame & Chassis
    $459.99
    Qty in Cart: 0
    Price:
    $459.99
    Subtotal:
  • 304 Stainless Steel On-Top Air Line Box Sectionalized Deck Plate W/ Trailer Air, 2 7-Way Hookups

    304 Stainless Steel On-Top Air Line Box Sectionalized Deck Plate W/ Trailer Air, 2 7-Way Hookups

    IOWA CUSTOMS

    $577.99
    On-Top Air Line Box Sectionalized Deck Plate W/ Trailer Air & 2 7-Way Hookups* High Quality Deck Plate Accessories* Made Of Polished Stainless Steel* On-Top Airline Box * With Trailer Air And Two...
    09-050300040
    SKU:
    09-050300040
    Truck Class:
    Universal
    Make:
    Universal Items
    Finish Options:
    Polished
    Style Options:
    Surface Mount
    Material Options:
    Stainless Steel
    Product Type:
    Frame & Chassis
    $577.99
    Qty in Cart: 0
    Price:
    $577.99
    Subtotal:
  • Smooth Aluminum On-Top Air Line Box Deck Plate W/ Trailer Air, 7-Way Hookups

    Smooth Aluminum On-Top Air Line Box Deck Plate W/ Trailer Air, 7-Way Hookups

    IOWA CUSTOMS

    $459.99
    On-Top Air Line Box Deck Plate W/ Trailer Air & 7-Way Hookups* High Quality Deck Plate Accessories* Made Of Smooth Aluminum* On-Top Airline Box * With Trailer Air And One 7-Way Hook Ups* Made In USA*...
    09-050300039
    SKU:
    09-050300039
    Truck Class:
    Universal
    Make:
    Universal Items
    Material Options:
    Aluminum
    Style Options:
    Surface Mount
    Finish Options:
    Smooth
    Product Type:
    Frame & Chassis
    $459.99
    Qty in Cart: 0
    Price:
    $459.99
    Subtotal:
  • 304 Stainless Steel On-Top Air Line Box Deck Plate W/ Trailer Air, 7-Way Hookups

    304 Stainless Steel On-Top Air Line Box Deck Plate W/ Trailer Air, 7-Way Hookups

    IOWA CUSTOMS

    $563.99
    On-Top Air Line Box Deck Plate W/ Trailer Air & 7-Way Hookups* High Quality Deck Plate Accessories* Made Of Polished Stainless Steel* On-Top Airline Box * With Trailer Air And One 7-Way Hook Ups*...
    09-050300038
    SKU:
    09-050300038
    Truck Class:
    Universal
    Make:
    Universal Items
    Finish Options:
    Polished
    Style Options:
    Surface Mount
    Material Options:
    Stainless Steel
    Product Type:
    Frame & Chassis
    $563.99
    Qty in Cart: 0
    Price:
    $563.99
    Subtotal:
  • Smooth Aluminum On-Top Air Line Box Deck Plate W/ Trailer Air, 7-Way, 4/6-Way Hookups

    Smooth Aluminum On-Top Air Line Box Deck Plate W/ Trailer Air, 7-Way, 4/6-Way Hookups

    IOWA CUSTOMS

    $459.99
    On-Top Air Line Box Deck Plate W/ Trailer Air, 7-Way & 4/6-Way Hookups* High Quality Deck Plate Accessories* Made Of Smooth Aluminum* On-Top Airline Box * With Trailer Air * One 7-Way And One 4/6 Way...
    09-050300037
    SKU:
    09-050300037
    Truck Class:
    Universal
    Make:
    Universal Items
    Material Options:
    Aluminum
    Finish Options:
    Smooth
    Style Options:
    Surface Mount
    Product Type:
    Frame & Chassis
    $459.99
    Qty in Cart: 0
    Price:
    $459.99
    Subtotal:
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Adding your products to cart

Find high-quality replacement and upgrade parts for your truck in the International 9900/i/ix Frame Crossmembers-Cov product lineup. This selection includes stainless steel rear frame covers, adjustable walking beams, and heavy-duty crossmember retrofits for many models. These components are designed to replace worn or damaged OEM parts and maintain your truck. With durable options like fiber-reinforced rear covers and specialized hardware, this product lineup offers reliable solutions to keep your International semi running smoothly.

Frequently Asked Questions About International 9900/i/ix Frame Crossmembers-Cov

What exactly are frame crossmember covers, and what purpose do they serve?

Frame crossmember covers are the panels that fit over or around the crossmembers running between the frame rails on your International 9900, 9900i, or 9900ix. They help finish out the underside and frame area of the truck, providing a cleaner look while also offering a layer of protection to the crossmember structure from road debris, moisture, and corrosion buildup.

Will these covers fit my specific International 9900, 9900i, or 9900ix model year?

Fitment can vary between the 9900, 9900i, and 9900ix depending on frame configuration and production year, so it is important to check the listed specifications on each product page against your VIN or existing crossmember dimensions before ordering. If you are unsure, reach out to our team with your truck's details and we can help confirm the correct part.

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

Crossmember covers in this category are typically made from steel or aluminum, depending on the specific product listed. Steel covers tend to offer more rigidity, while aluminum options are lighter and naturally more resistant to rust. Check the individual product description for material specifics, gauge, and any protective coating or finish applied.

Do these covers come with a finish already applied, or will I need to paint or coat them myself?

Some covers are available with a raw or mill finish, while others may come pre-treated or coated depending on the manufacturer. If a specific finish or paint match is important for your build, review the product listing closely or contact us beforehand so you know what to expect out of the box.

What does installation typically involve, and can I install a crossmember cover myself?

Installation generally involves aligning the cover with the existing mounting points on the crossmember and securing it with bolts or hardware, which may or may not be included depending on the product. Most experienced DIYers or shop technicians can handle this without major issues, but you should always reference your truck's service manual or have a qualified technician verify fitment, especially if any drilling or modification is required.


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