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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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  • 1 1/4 Inch Bullet Style Chrome Plastic Nut Cover Without Flange

    1 1/4 Inch Bullet Style Chrome Plastic Nut Cover Without Flange

    LIFETIME NUT COVERS

    $3.05
    1 1/4 Inch Bullet Style Chrome Plastic Nut Cover Without Flange By Lifetime Nut Covers* High Quality Nut Cover* Made Of Chrome Plated Plastic* 1 1/4 Inch* Bullet Style * Without Flange* Sold...
    09-0506105
    SKU:
    09-0506105
    Location:
    Made In USA
    Truck Class:
    Universal
    Style Options:
    Bullet
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Product Type:
    Frame & Chassis
    $3.05
    Qty in Cart: 0
    Price:
    $3.05
    Subtotal:
  • FREE SHIPPING OVER $249
    3/4 Inch Short Top Hat Nut Covers -10 Pack

    3/4 Inch Short Top Hat Nut Covers -10 Pack

    AFTERMARKET

    $12.89
    Top Hat Nut Covers* Made Of High Quality Chrome Plated Plastic* 3/4 Inches* Sold As Pack* Warranty On Nut Covers Against Defects In Workmanship & Material From Date Of Purchase*** High Quality...
    09-050609810
    SKU:
    09-050609810
    Truck Class:
    Universal
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $12.89
    Qty in Cart: 0
    Price:
    $12.89
    Subtotal:
  • FREE SHIPPING OVER $249
    33MM OD, 7/8 Inch ID Huck Sleeve - Navy Blue

    33MM OD, 7/8 Inch ID Huck Sleeve - Navy Blue

    LIFETIME NUT COVERS

    $0.82
    Navy Blue Huck Sleeve W/ 33MM Outer Diameter 7/8 Inch Inner DiameterDo you need a 33mm huck sleeve for your Volvo? 4 State Trucks stocks 7/8 inch inside diameter adapters which have an outside...
    09-0506097
    SKU:
    09-0506097
    Color:
    Blue
    Location:
    Made In USA
    Truck Class:
    Universal
    Size Options:
    33 mm
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $0.82
    Qty in Cart: 0
    Price:
    $0.82
    Subtotal:
  • FREE SHIPPING OVER $249
    30MM Huck Adapter 7/8 Inch - 10 Pack

    30MM Huck Adapter 7/8 Inch - 10 Pack

    AFTERMARKET

    $6.31
    7/8 Inch Inner 30MM Outer Huck Sleeves - Pack Of 10Keep huck bolts in place with this pack of red ten sleeves. They are designed to work in conditions of heavy levels of vibration. Each huck sleeve...
    09-050609610
    SKU:
    09-050609610
    Color:
    Red
    Truck Class:
    Universal
    Size Options:
    30 mm
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $6.31
    Qty in Cart: 0
    Price:
    $6.31
    Subtotal:
  • FREE SHIPPING OVER $249
    7/8 Inch Huck Sleeve

    7/8 Inch Huck Sleeve

    LIFETIME NUT COVERS

    $0.81
    Red Huck Sleeve W/ 30MM Outer Diameter 7/8 In Inner DIA.Secure a huck bolt with this heavy duty sleeve. It is designed to keep the bolt tight and in place during heavy levels of vibration. This huck...
    09-0506096
    SKU:
    09-0506096
    Color:
    Red
    Location:
    Made In USA
    Truck Class:
    Universal
    Size Options:
    30 mm
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $0.81
    Qty in Cart: 0
    Price:
    $0.81
    Subtotal:
  • FREE SHIPPING OVER $249
    33MM Huck Adapter 15/16 Inch - 10 Pack

    33MM Huck Adapter 15/16 Inch - 10 Pack

    AFTERMARKET

    $6.44
    15/16 Inch Inner 33MM Outer Huck Sleeves - Pack Of 10Keep huck bolts in place with this pack of ten sleeves. They are designed to work in conditions of heavy levels of vibration. Each huck sleeve has...
    09-050609510
    SKU:
    09-050609510
    Truck Class:
    Universal
    Size Options:
    33 mm
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $6.44
    Qty in Cart: 0
    Price:
    $6.44
    Subtotal:
  • FREE SHIPPING OVER $249
    15/16 Inch Huck Sleeve - White

    15/16 Inch Huck Sleeve - White

    LIFETIME NUT COVERS

    $0.82
    Huck Sleeve W/ 33MM Outer Diameter 15/16 In Inner DIA.Ensure your huck bolt is secure with this heavy duty huck sleeve by Lifetime Nut Covers. It is constructed to work in conditions of heavy levels...
    09-0506095
    SKU:
    09-0506095
    Truck Class:
    Universal
    Location:
    Made In USA
    Color:
    White
    Size Options:
    33 mm
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $0.82
    Qty in Cart: 0
    Price:
    $0.82
    Subtotal:
  • FREE SHIPPING OVER $249
    30MM Huck Sleeve -10 Pack

    30MM Huck Sleeve -10 Pack

    AFTERMARKET

    $6.44
    15/16 Inch Inner 30MM Outer Huck Sleeves - Pack Of 10Keep huck bolts in place with this pack of ten sleeves. They are designed to work in conditions of heavy levels of vibration. Each huck sleeve has...
    09-050609410
    SKU:
    09-050609410
    Truck Class:
    Universal
    Material Options:
    Plastic/Poly
    Size Options:
    30 mm
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $6.44
    Qty in Cart: 0
    Price:
    $6.44
    Subtotal:
  • FREE SHIPPING OVER $249
    15/16 Inch Huck Sleeve - Pink

    15/16 Inch Huck Sleeve - Pink

    LIFETIME NUT COVERS

    $0.81
    Huck Sleeve W/ 30MM Outer Diameter 15/16 In Inner DIA.Keep a huck bolt in place with this quality and heavy duty sleeve. It is designed to work in conditions with heavy levels of vibration. The...
    09-0506094
    SKU:
    09-0506094
    Truck Class:
    Universal
    Location:
    Made In USA
    Size Options:
    30 mm
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $0.81
    Qty in Cart: 0
    Price:
    $0.81
    Subtotal:
  • FREE SHIPPING OVER $249
    1.25 Inch Huck Sleeve

    1.25 Inch Huck Sleeve

    LIFETIME NUT COVERS

    $0.81
    Huck Sleeve W/ 33MM Outer Diameter 1.25 In Inner DIA.Set a huck bolt permanently in place with this quality sleeve. It fits around a grooved pin, measuring 1.25 inches in diameter inside the sleeve...
    09-0506093
    SKU:
    09-0506093
    Diameter Options:
    1 Inch
    Location:
    Made In USA
    Truck Class:
    Universal
    Size Options:
    33 mm
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $0.81
    Qty in Cart: 0
    Price:
    $0.81
    Subtotal:
  • FREE SHIPPING OVER $249
    Huck Adapter Sleeve - White 15/16 Inch ID X 1-1/4 Inch OD 10 Pack

    Huck Adapter Sleeve - White 15/16 Inch ID X 1-1/4 Inch OD 10 Pack

    AFTERMARKET

    $5.29
    White Plastic Huck Adapter Sleeve 15/16 Inch ID X 1-1/4 Inch OD 10 Pack* High Quality Nut Cover Huck Adapter* Adapter For Mounting Nut Covers Over Hucks * 1-1/4 Inch Outer Diameter* 15/16 Inch Inner...
    09-050609210
    SKU:
    09-050609210
    Color:
    White
    Truck Class:
    Universal
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $5.29
    Qty in Cart: 0
    Price:
    $5.29
    Subtotal:
  • FREE SHIPPING OVER $249
    Huck Adapter Sleeve - White 15/16 Inch Id X 1-1/4 Inch Od

    Huck Adapter Sleeve - White 15/16 Inch Id X 1-1/4 Inch Od

    LIFETIME NUT COVERS

    $1.01
    White Plastic Huck Adapter Sleeve 15/16 Inch ID X 1-1/4 Inch ODDo you need huck adapters for the frame of your truck? 4 State Trucks carries size options from Lifetime Nut Covers including white huck...
    09-0506092
    SKU:
    09-0506092
    Truck Class:
    Universal
    Diameter Options:
    1 Inch
    Location:
    Made In USA
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $1.01
    Qty in Cart: 0
    Price:
    $1.01
    Subtotal:
  • FREE SHIPPING OVER $249
    13MM & 1/2 Inch Chrome Plastic Top Hat Nut Cover With Flange - 10 Pack

    13MM & 1/2 Inch Chrome Plastic Top Hat Nut Cover With Flange - 10 Pack

    AFTERMARKET

    $11.85
    Top Hat Nut Cover* Made Of High Quality Chrome Plated Plastic* 1/2 Inch And 13MM Bolt Heads* Sold As Pack * Warranty On Nut Cover Against Defects In Workmanship & Material From Date Of Purchase***...
    09-050608910
    SKU:
    09-050608910
    Truck Class:
    Universal
    Style Options:
    Top Hat
    Material Options:
    Plastic/Poly
    Size Options:
    13 mm
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $11.85
    Qty in Cart: 0
    Price:
    $11.85
    Subtotal:
  • FREE SHIPPING OVER $249
    13MM And 1/2 Inch Chrome Plastic Top Hat Style Nut Cover

    13MM And 1/2 Inch Chrome Plastic Top Hat Style Nut Cover

    LIFETIME NUT COVERS

    $2.07
    Chrome 13MM And 1/2 Inch Top Hat Style Nut CoverThis lug nut cover comes in chrome plastic and fits 1/2" and 13MM nuts. It's a top hat style cover with a flange, made of ABS plastic and triple chrome...
    09-0506089
    SKU:
    09-0506089
    Location:
    Made In USA
    Truck Class:
    Universal
    Style Options:
    Top Hat
    Size Options:
    13 mm
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Product Type:
    Frame & Chassis
    Diameter Options:
    1/2 Inch
    Ready To Ship:
    Yes
    $2.07
    Qty in Cart: 0
    Price:
    $2.07
    Subtotal:
  • Chrome Huck Rivet / Nut Cover Set - 48 Pieces

    Chrome Huck Rivet / Nut Cover Set - 48 Pieces

    UNITED PACIFIC

    $36.82
    Chrome Plastic Huck Nut CoversCheck out this chrome plastic huck rivet/nut cover set! This complete set includes forty-four 1 3/16-inch nut covers and four 3/4-inch nut covers. Perfect for enhancing...
    09-05060034
    SKU:
    09-05060034
    Truck Class:
    Universal
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $36.82
    Qty in Cart: 0
    Price:
    $36.82
    Subtotal:
  • Chrome-Plated 24 Inch Billet Aluminum Step Plate - Pair

    Chrome-Plated 24 Inch Billet Aluminum Step Plate - Pair

    LIFETIME NUT COVERS

    $611.99
    Chrome 24 Inch Step Plate Without LogoEasily mount these durable step plates by Lifetime Nut Covers to your tool box or battery box step. They are constructed of chrome plated billet aluminum. Each...
    09-0505300
    SKU:
    09-0505300
    Location:
    Made In USA
    Truck Class:
    Universal
    Length Options:
    24 Inch
    Width Options:
    6 Inch
    Material Options:
    Aluminum
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $611.99
    Qty in Cart: 0
    Price:
    $611.99
    Subtotal:
  • 16 Inch Chrome Billet Aluminum Step Plate Pair - Chrome Base With Rubber Raised Grip Insert

    16 Inch Chrome Billet Aluminum Step Plate Pair - Chrome Base With Rubber Raised Grip Insert

    LIFETIME NUT COVERS

    $489.99
    16 Inch Chrome Billet Aluminum Step Plate By Lifetime* High Quality Step Plate* Made Of Chrome Plated Billet Aluminum* 16 Inch* Chrome Base * With Rubber Raised Grip Insert* Made In USA* Sold As...
    09-0505240
    SKU:
    09-0505240
    Width Options:
    16 Inch
    Truck Class:
    Universal
    Location:
    Made In USA
    Material Options:
    Aluminum
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Product Type:
    Frame & Chassis
    $489.99
    Qty in Cart: 0
    Price:
    $489.99
    Subtotal:
  • Limited Quantity Available
    24 Inch Chrome Swoop Style Billet Step Plate W/ Rubber Inserts

    24 Inch Chrome Swoop Style Billet Step Plate W/ Rubber Inserts

    LIFETIME NUT COVERS

    $648.99
    24 Inch Chrome Swoop Style Billet StepEasily mount these durable step plates by Lifetime Nut Covers to your tool box or battery box step plates. They are constructed of chrome plated billet aluminum...
    09-0505239
    SKU:
    09-0505239
    Length Options:
    6 Inch
    Width Options:
    24 Inch
    Truck Class:
    Universal
    Location:
    Made In USA
    Material Options:
    Aluminum
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Product Type:
    Frame & Chassis
    $648.99
    Qty in Cart: 0
    Price:
    $648.99
    Subtotal:
  • 12 Gauge Billet Aluminum Step Plates -Universal Fit

    12 Gauge Billet Aluminum Step Plates -Universal Fit

    TWELVE GAUGE

    $174.99
    Billet Aluminum Step Plates* High Quality Step Plates* Made Of Billet Aluminum* Sold Individually* Warranty On Step Plates Against Defects In Workmanship & Material From Date Of Purchase*** High...
    09-0505238
    SKU:
    09-0505238
    Truck Class:
    Universal
    Material Options:
    Billet Aluminum
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $174.99
    Qty in Cart: 0
    Price:
    $174.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Stainless Steel Step Plates Wash Board Style

    Stainless Steel Step Plates Wash Board Style

    TWELVE GAUGE

    $117.99
    12 Gauge Wash Board Step Plates Stainless SteelProvide grip to any smooth surface with this pair of quality stainless steel step plates. Their raised washboard style design provides an excellent and...
    09-0505228
    SKU:
    09-0505228
    Length Options:
    28 Inch
    Truck Class:
    Universal
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $117.99
    Qty in Cart: 0
    Price:
    $117.99
    Subtotal:
  • Total: items /

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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