null

Kenworth T660 Frame Crossmembers & Covers

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • 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:
  • FREE SHIPPING
    Coffin Style Air Line Box 304 SS 24 Inch With 2 Electric Plugs by CSM

    Coffin Style Air Line Box 304 SS 24 Inch With 2 Electric Plugs by CSM

    CHROME SHOP MAFIA

    $307.99
    16 Gauge 304 Stainless Steel Coffin Style Air Line Box By Chrome Shop MafiaThis 24-inch CSM Coffin Style air line box is made of 16 Gauge 304 stainless steel and is corrosion-resistant. It has...
    09-0504002
    SKU:
    09-0504002
    Truck Class:
    Universal
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Size Options:
    16 Gauge
    Style Options:
    Coffin Style
    Product Type:
    Frame & Chassis
    Width Options:
    24 Inch
    Type Options:
    Surface Mount
    Ready To Ship:
    Yes
    $307.99
    Qty in Cart: 0
    Price:
    $307.99
    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:
  • 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
    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
    Ready To Ship:
    Yes
    $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:
  • Total: items /

Adding your products to cart

Enhance your Kenworth T660 with Crossmembers & Covers from our comprehensive selection. These durable, high-quality parts are designed to provide a sturdy foundation and stylish finishing touches for your semi-truck. Upgrade your truck's appearance and functionality with our extensive range of crossmembers, protective covers, and other accessories. Whether you need to replace worn components or customize your rig, our Kenworth T660 parts deliver the strength, style, and performance you demand. Elevate your ride with our premium selection of Kenworth T660 Frame Crossmembers & Covers.

Frequently Asked Questions About Kenworth T660 Frame Crossmembers & Covers

What are frame crossmembers and covers used for on the Kenworth T660?

Frame crossmembers are structural components that run laterally between the frame rails, helping maintain frame rigidity and support other chassis components. Covers are typically used to protect these crossmembers or nearby frame areas from road debris, moisture, and corrosion. Together, they help preserve the structural integrity of the truck's frame over time.

Will these crossmembers and covers fit my specific Kenworth T660?

Fitment can vary depending on the model year, chassis configuration, and specific application of your T660. Because frame components are often built to close tolerances, we recommend verifying part numbers or dimensions against your truck's specifications, or contacting our parts team with your VIN or existing part number to confirm compatibility before ordering.

What materials are these crossmembers and covers made from?

Most crossmembers and covers in this category are constructed from heavy-duty steel or aluminum, depending on the specific part and its intended location on the frame. Steel components are generally chosen for load-bearing strength, while aluminum or coated steel covers may be used where corrosion resistance and weight savings are a priority.

Do these parts come with a protective finish or coating?

Finish options vary by product. Some crossmembers and covers are sold with a factory-style paint, primer, or galvanized coating to help resist rust and corrosion, while others may be bare metal and require the buyer to apply a finish before or after installation. Check the individual product listing for specific finish details before purchasing.

Can I install a replacement crossmember or cover myself, or should I use a professional shop?

Frame crossmembers are structural parts, so installation typically involves proper alignment, torque specifications, and sometimes welding or drilling into the frame rail. While experienced fleet technicians or shop personnel can often handle this type of replacement, we recommend having the work done by a qualified technician to ensure the part is installed correctly and the frame's structural integrity is maintained.


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