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Kenworth Frame & Chassis

Reinforce your Kenworth's core with 4 State Trucks' superior Kenworth semi truck frame and chassis components. Count on us for high-grade Kenworth frame and chassis parts that boost structural integrity and durability, guaranteeing your rig handles every payload with unwavering stability. From critical replacements to performance-enhancing upgrades, our parts ensure your Kenworth semi truck's foundation remains rock-solid, making each journey safer and more dependable. Choose 4 State Trucks to fortify your Kenworth's backbone, providing the sturdy base needed for optimal performance and longevity. Whether you're navigating city streets or conquering long-haul routes, our frame and chassis components give you the confidence to tackle any challenge, load after load.
  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • Pivot Bolt Kit - 3/4 Inch -10

    Pivot Bolt Kit - 3/4 Inch -10

    AFTERMARKET

    $70.99
    Pivot Bolt Kit W/ Shackle Bolt* High Quality Pivot Bolt Kit* Consists Of  - (8) Shackle Bolt - (16) U-Bolt Washer  - (8) Lock Nut* 3/4 Inch Bolt Size* 10 x 5 Inch Length* Made In USA* Sold...
    29-05200024
    SKU:
    29-05200024
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Make:
    Trailer
    Product Type:
    Frame & Chassis
    $70.99
    Qty in Cart: 0
    Price:
    $70.99
    Subtotal:
  • 60 Inch Cross Tube - 1.75 In OD, 1-1/4 In-12 Ends Replaces 817020 For Kenworth T660

    60 Inch Cross Tube - 1.75 In OD, 1-1/4 In-12 Ends Replaces 817020 For Kenworth T660

    AFTERMARKET

    $196.99
    60 Inch C To C Cross Tube Replaces 817020, R00291522, 00291522* High Quality Cross Tube* 1-1/8 Inch-12 I.D.* 1.75 Inch O.D.* 60.00 Inch Length* Made In USA* Sold Individually * Warranty On Cross...
    29-05090143
    SKU:
    29-05090143
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Length Options:
    60 Inch
    Make:
    Kenworth
    Product Type:
    Frame & Chassis
    $196.99
    Qty in Cart: 0
    Price:
    $196.99
    Subtotal:
  • 57.54 Inch Cross Tube - 2 In OD, 1-1/4 In-12 Ends Replaces A3102J3858

    57.54 Inch Cross Tube - 2 In OD, 1-1/4 In-12 Ends Replaces A3102J3858

    AFTERMARKET

    $213.99
    57.54 Inch C To C Cross Tube Replaces A3102J3858, A3102Y3873, 8HR656* High Quality Cross Tube Assembly* 57.54 Inch Length* 2.00 Inch O.D.* 1-1/4 Inch-12 I.D.* Made In USA* Sold Individually* Warranty...
    29-05200017
    SKU:
    29-05200017
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Length Options:
    57 1/2 Inch
    Make:
    Trailer
    Product Type:
    Frame & Chassis
    $213.99
    Qty in Cart: 0
    Price:
    $213.99
    Subtotal:
  • 59 Inch Cross Tube - 1.75 In OD, 1-1/8 In-12 Ends Replaces 60239002

    59 Inch Cross Tube - 1.75 In OD, 1-1/8 In-12 Ends Replaces 60239002

    AFTERMARKET

    $206.99
    59 Inch C To C Cross Tube Replaces 60239-002, 1697807C91, A3102L4380* High Quality Cross Tube* 1-1/8 Inch-12* O.D.- 1.75 Inch* Length- 59.00 Inch* Made In USA* Sold Individually * Warranty On Cross...
    29-05090137
    SKU:
    29-05090137
    Length Options:
    59 Inch
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Make:
    International
    Make:
    Western Star
    Make:
    Volvo
    Make:
    Mack
    Product Type:
    Frame & Chassis
    $206.99
    Qty in Cart: 0
    Price:
    $206.99
    Subtotal:
  • Equalizer Shaft 8.625 X 1-7/16 Inch-12 Threads

    Equalizer Shaft 8.625 X 1-7/16 Inch-12 Threads

    AUTOMANN USA

    $28.10
    Equalizer Shaft Replaces E1967, R301967, 868601* High Quality Equalizer Shaft* 8.375 Inch Length* 1-7/16 Inch-12 Threads* Sold Individually* Warranty On Equalizer Shafts Against Defects In...
    29-05100228
    SKU:
    29-05100228
    Length Options:
    8 1/4 Inch
    Material Options:
    Brass
    Truck Class:
    Heavy Duty
    Make:
    Trailer
    Product Type:
    Frame & Chassis
    $28.10
    Qty in Cart: 0
    Price:
    $28.10
    Subtotal:
  • 56 Inch Cross Tube - 2 In OD, 1-1/4 In-12 Ends Replaces 820633

    56 Inch Cross Tube - 2 In OD, 1-1/4 In-12 Ends Replaces 820633

    AFTERMARKET

    $183.99
    56 Inch C To C Cross Tube Replace 820633* High Quality Cross Tube* 1-1/4 Inch-12 I.D.* 2.00 Inch O.D.* 56.00 Inch Length* Made In USA* Sold Individually * Warranty On Cross Tubes Against Defects In...
    29-05090139
    SKU:
    29-05090139
    Truck Class:
    Heavy Duty
    Length Options:
    56 Inch
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $183.99
    Qty in Cart: 0
    Price:
    $183.99
    Subtotal:
  • 3.75 Inch Poly Torque Rod Bushing - Oversized 2.375 Inch ID

    3.75 Inch Poly Torque Rod Bushing - Oversized 2.375 Inch ID

    BESTFIT TRUCK PARTS

    $30.25
    Over Sized 3.75 Inch Poly Torque Rod Bushing* High Quality Torque Rod* Poly* 3.75 Inch Length* 2.375 Inch I.D.* Sold Individually* Warranty On Torque Rods Against Defects In Workmanship & Material...
    29-05100211
    SKU:
    29-05100211
    Diameter Options:
    2 1/4 Inch
    Truck Class:
    Heavy Duty
    Material Options:
    Plastic/Poly
    Make:
    Trailer
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $30.25
    Qty in Cart: 0
    Price:
    $30.25
    Subtotal:
  • 20 Inch Fixed Torque Rod W/ 1-1/4 In OD Shaft, Passenger Side

    20 Inch Fixed Torque Rod W/ 1-1/4 In OD Shaft, Passenger Side

    AFTERMARKET

    $615.99
    Driver Side 20 Inch C To C Torque Rod Replaces 90045485* High Quality Torque Rod* Includes  - 4.375 Inch Torque Rod Bushing  - 8 Inch Torque Rod Bushing* 1-1/4 Inch Shaft Diameter* 20 Inch C To C*...
    29-05100182
    SKU:
    29-05100182
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Position:
    Passenger Side
    Length Options:
    20 Inch
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $615.99
    Qty in Cart: 0
    Price:
    $615.99
    Subtotal:
  • 19.625 Inch Adjustable Torque Rod, 1-1/4 Inch Dia Replaces 90045539

    19.625 Inch Adjustable Torque Rod, 1-1/4 Inch Dia Replaces 90045539

    AFTERMARKET

    $573.99
    19.625 Inch C To C Torque Rod Replaces 90045539* High Quality Torque Rod * 19.625 Inch * Shaft Diameter- 1-1/4 Inch* (2) Torque Rod Bushing* Side A And B- Straddle* Made In USA* Sold Individually *...
    29-05090131
    SKU:
    29-05090131
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Length Options:
    19 5/8 Inch
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $573.99
    Qty in Cart: 0
    Price:
    $573.99
    Subtotal:
  • 4.20 Inch Poly Torque Rod Bushing, Type 2 - Replaces 70032

    4.20 Inch Poly Torque Rod Bushing, Type 2 - Replaces 70032

    AFTERMARKET

    $30.06
    4.20 Inch Torque Rod Bushing Replaces 70032, D188, E8917, E-8917, R308917* High Quality Torque Rod Bushing* 4.20 Inch Length* 2.563 Inch I.D.* Oversized OD* Type 2 Spigot Joint* Made In USA* Sold...
    29-05100178
    SKU:
    29-05100178
    Material Options:
    Plastic/Poly
    Diameter Options:
    2 1/2 Inch
    Truck Class:
    Heavy Duty
    Make:
    Trailer
    Product Type:
    Frame & Chassis
    $30.06
    Qty in Cart: 0
    Price:
    $30.06
    Subtotal:
  • Tie Rod End 5.625 Inch W/ 1-1/8 Inch-12 Thread- Passenger Side

    Tie Rod End 5.625 Inch W/ 1-1/8 Inch-12 Thread- Passenger Side

    AFTERMARKET

    $81.99
    5.625 Inch Length C To E Passenger Side Tie Rod End Replaces 132284For smooth steering and consistent response, this passenger side tie rod end offers a rugged design and precision fit. The 1-1/8...
    29-05090150
    SKU:
    29-05090150
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Length Options:
    5 5/8 Inch
    Position:
    Passenger Side
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $81.99
    Qty in Cart: 0
    Price:
    $81.99
    Subtotal:
  • 55.50 Inch Cross Tube - 2.50 In OD, 1-5/8 In-12 Ends

    55.50 Inch Cross Tube - 2.50 In OD, 1-5/8 In-12 Ends

    AFTERMARKET

    $334.99
    55.50 Inch C To C Cross Tube* High Quality Cross Tube* 55.50 Inch Length* 2.50 Inch O.D.* 1-5/8 Inch-12 I.D.* (2) Sleeve Adapters At 1-5/8 Inch 12 OD To 1-1/4 Inch-12 ID Threading On Both Sides* Made...
    29-05090127
    SKU:
    29-05090127
    Material Options:
    Steel
    Length Options:
    55 1/2 Inch
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $334.99
    Qty in Cart: 0
    Price:
    $334.99
    Subtotal:
  • 64 Inch Cross Tube - 2 In OD, 1-1/4 Inch-12 Ends Replaces 820635

    64 Inch Cross Tube - 2 In OD, 1-1/4 Inch-12 Ends Replaces 820635

    AFTERMARKET

    $233.99
    64 Inch Cross Tube Replaces 820635Built for toughness and precision, this 64 Inch Cross Tube offers superior strength for your truck's steering system. With a 2.00-inch outer diameter and 1-1/4...
    29-05090125
    SKU:
    29-05090125
    Length Options:
    64 Inch
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $233.99
    Qty in Cart: 0
    Price:
    $233.99
    Subtotal:
  • 45.54 Inch Cross Tube - 1.75 In OD, 1-1/4 Inch-12 Ends Replaces A3102A3849

    45.54 Inch Cross Tube - 1.75 In OD, 1-1/4 Inch-12 Ends Replaces A3102A3849

    AFTERMARKET

    $158.99
    45.54 Inch C To C Cross Tube Replaces A3102A3849* High Quality Cross Tube* 1-1/4 Inch-12 I.D.* 1.75 Inch O.D.* 45.540 Inch Length* Made In USA* Sold Individually * Warranty On Cross Tubes Against...
    29-05090146
    SKU:
    29-05090146
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Length Options:
    45 1/2 Inch
    Product Type:
    Frame & Chassis
    $158.99
    Qty in Cart: 0
    Price:
    $158.99
    Subtotal:
  • 54.61 Inch Cross Tube - 1.75 In OD, 1-1/4 In-12 Ends Replaces 1009011

    54.61 Inch Cross Tube - 1.75 In OD, 1-1/4 In-12 Ends Replaces 1009011

    AFTERMARKET

    $202.99
    54.61 Inch C To C Cross Tube Replaces 1009011Built for toughness, the 54.61 Inch Cross Tube delivers the support your truck needs for challenging roads. With a 1.75-inch outer diameter and 1-1/4...
    29-05090123
    SKU:
    29-05090123
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Length Options:
    54 Inch
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $202.99
    Qty in Cart: 0
    Price:
    $202.99
    Subtotal:
  • 59.38 Inch Cross Tube - 1.625 In OD, 1-1/8 In-12 Ends Replaces 140TR106

    59.38 Inch Cross Tube - 1.625 In OD, 1-1/8 In-12 Ends Replaces 140TR106

    AFTERMARKET

    $201.99
    59.38 Inch Cross Tube Replaces 140TR106* High Quality Cross Tube* 1-1/8 Inch-12 I.D.* 1.625 Inch O.D.* 59.380 Inch Length* Made In USA* Sold Individually * Warranty On Cross Tubes Against Defects In...
    29-05090144
    SKU:
    29-05090144
    Length Options:
    59 Inch
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $201.99
    Qty in Cart: 0
    Price:
    $201.99
    Subtotal:
  • 54 Inch Cross Tube - 1.75 In OD, 1-1/4 Inch-12 Ends Replaces 818817

    54 Inch Cross Tube - 1.75 In OD, 1-1/4 Inch-12 Ends Replaces 818817

    AFTERMARKET

    $200.99
    54 Inch C To C Cross Tube Replaces 818817, 820661* High Quality Cross Tube* 1-1/4 Inch-12 I.D.* 1.75 Inch O.D.* 54.00 Inch Length* Made In USA* Sold Individually * Warranty On Cross Tubes Against...
    29-05090142
    SKU:
    29-05090142
    Material Options:
    Steel
    Length Options:
    54 Inch
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $200.99
    Qty in Cart: 0
    Price:
    $200.99
    Subtotal:
  • 60.410 Inch Cross Tube - 1.75 In OD, 1-1/4 In-12 Ends, Replaces 88936083

    60.410 Inch Cross Tube - 1.75 In OD, 1-1/4 In-12 Ends, Replaces 88936083

    AFTERMARKET

    $189.99
    60.41 Inch C To C Cross Tube Replaces 88936083, 7Qh331P4. 8226L20Rt1364X1* High Quality Cross Tube* 60.410 Inch Length* 1.75 Inch OD* 1-1/4 Inch-12 ID* Made In USA* Sold Individually* Warranty On...
    29-05090119
    SKU:
    29-05090119
    Length Options:
    60 Inch
    Material Options:
    Stainless Steel
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $189.99
    Qty in Cart: 0
    Price:
    $189.99
    Subtotal:
  • 62.25 Inch Cross Tube - 1.75 In OD, 1-1/8 In-12 Ends Replaces 1009249, 806963

    62.25 Inch Cross Tube - 1.75 In OD, 1-1/8 In-12 Ends Replaces 1009249, 806963

    AFTERMARKET

    $279.99
    62.25 Inch C To C Cross Tube Replaces 1009249, 806963Reinforce your truck's chassis with this high-quality 62.25 Inch Cross Tube, built to deliver strength and durability where you need it most...
    29-05090121
    SKU:
    29-05090121
    Length Options:
    62 Inch
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $279.99
    Qty in Cart: 0
    Price:
    $279.99
    Subtotal:
  • 53.54 Inch Cross Tube, 1.812 In OD, 1-1/4 In-12 Ends Replaces A3102Y3847

    53.54 Inch Cross Tube, 1.812 In OD, 1-1/4 In-12 Ends Replaces A3102Y3847

    AFTERMARKET

    $165.99
    53.54 Inch C To C Cross Tube Replaces A3102Y3847* High Quality Cross Tube* 1-1/4 Inch-12 I.D.* 1.812 Inch O.D.* 53.540 Inch Length* Made In USA* Sold Individually * Warranty On Cross Tubes Against...
    29-05090140
    SKU:
    29-05090140
    Length Options:
    53 1/2 Inch
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $165.99
    Qty in Cart: 0
    Price:
    $165.99
    Subtotal:
  • Total: items /

Adding your products to cart

Find the premium, aftermarket parts for your Kenworth Frame & Chassis. This category has everything you need for your Kenworth's frame, chassis, and suspension. Find air tanks, shocks, bushings, leaf springs, and more to maintain your truck's structural integrity and smooth ride for models like the T800, W900, and T660. Replacement Parts: Direct-fit OEM replacements for seamless installation. Performance Upgrades: Stiffer leaf springs and adjustable shocks for better handling and weight capacity. Custom Accessories: stainless trim, fender flares, and mud flaps to enhance style and protection. Whether you're doing repairs, boosting performance, or customizing your rig's look, this category has you covered.

Frequently Asked Questions About Kenworth Frame & Chassis

What years and models are compatible with your Kenworth frame and chassis parts?

Our Kenworth frame and chassis components are designed for W900, T800, T880, T680, and T660 models. Most parts fit 1985-current year models, but compatibility varies by specific component. Always check the product description for exact year ranges, or contact our team with your OEM for guaranteed fitment. We maintain detailed compatibility charts for each product to ensure proper installation.

Are these aftermarket or OEM Kenworth frame parts, and what's the quality difference?

We carry both genuine OEM Kenworth parts and high-quality aftermarket alternatives. OEM parts guarantee exact factory specifications and fitment. Our aftermarket options are manufactured to meet or exceed OEM standards, often using upgraded materials like 304 stainless steel instead of mild steel. All aftermarket suppliers are vetted for quality control and many offer lifetime warranties on their products.

What tools and experience level do I need to install frame-mounted accessories?

Most frame-mounted accessories require basic hand tools, a drill with metal bits, and safety equipment. Installation difficulty ranges from simple bolt-on parts (30-60 minutes) to more complex items requiring cutting or welding. Professional installation is recommended for structural modifications or if you lack experience with heavy truck maintenance.

What finish options are available and how do they hold up against road salt and weather?

Common finishes include chrome-plated steel, polished stainless steel, powder-coated steel, and raw steel for custom painting. Stainless steel offers the best corrosion resistance without maintenance. Chrome requires regular cleaning to prevent pitting. Powder coating provides excellent protection when properly applied. For trucks operating in salt-heavy regions, we recommend stainless steel or powder-coated options with zinc primer.

Do frame extensions or modifications affect my truck's warranty or DOT compliance?

Frame modifications can potentially void manufacturer warranties if not performed to factory specifications. Always consult your warranty documentation before making structural changes. For DOT compliance, ensure any modifications maintain proper weight distribution and don't exceed manufacturer GVWR ratings. Frame extensions must be properly reinforced and may require engineering certification in some states. We recommend consulting a certified truck mechanic or frame shop for major modifications.


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