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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.
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  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • 33 Inch C To C Poly Cab Torque Rod - 2993-4032 For Peterbilt, Kenworth

    33 Inch C To C Poly Cab Torque Rod - 2993-4032 For Peterbilt, Kenworth

    AFTERMARKET

    $152.99
    Poly Cab Torque Rod With 5/8 Inch Through Bolt Both Ends* High Quality Torque Rod * Poly* 33 Inch C To C* (2) Bushings (Included)* Sold Individually* Warranty On Torque Rods Against Defects In...
    29-09500007
    SKU:
    29-09500007
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Length Options:
    33 Inch
    Make:
    Kenworth
    Make:
    Peterbilt
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $152.99
    Qty in Cart: 0
    Price:
    $152.99
    Subtotal:
  • 10.060 Inch King Pin Kit For Hendrickson / Turner ST, U, UT, UC

    10.060 Inch King Pin Kit For Hendrickson / Turner ST, U, UT, UC

    AFTERMARKET

    $403.99
    King Pin Kit Replaces OEM Numbers R006648 and R-006648This King Pin Kit is designed to fit Hendrickson Turner ST, U, UT, UC applications, featuring a 2-piece cast knuckle and draw keyed pin. It...
    29-05200010
    SKU:
    29-05200010
    Material Options:
    Steel
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $403.99
    Qty in Cart: 0
    Price:
    $403.99
    Subtotal:
  • Round U Bolt Kit 7/8 X 3 X 15-1/2 Inch

    Round U Bolt Kit 7/8 X 3 X 15-1/2 Inch

    AUTOMANN USA

    $58.99
    Round Bend U-Bolt Kit Replaces 58639008, 0308693395, 1422901, 21090155, 20872768, 8084013Maintain safe and reliable suspension mounting with this high-quality Round U Bolt Kit, sized 7/8 x 3 x 15-1/2...
    29-05100343
    SKU:
    29-05100343
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Make:
    Trailer
    Make:
    Volvo
    Product Type:
    Frame & Chassis
    $58.99
    Qty in Cart: 0
    Price:
    $58.99
    Subtotal:
  • Bimetal King Pin Bushing 1.91 ID, 2.05 OD, 2.5 Inch Replaces 5351110

    Bimetal King Pin Bushing 1.91 ID, 2.05 OD, 2.5 Inch Replaces 5351110

    AUTOMANN USA

    $24.16
    King Pin Bushing Replaces 5351110Protect your steering system with this Bimetal King Pin Bushing, replacing OEM part 5351110. Crafted from bimetal with a 1.91-inch ID, 2.05-inch OD, and 2.5-inch...
    29-05110202
    SKU:
    29-05110202
    Material Options:
    Steel
    Diameter Options:
    2 Inch
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $24.16
    Qty in Cart: 0
    Price:
    $24.16
    Subtotal:
  • 21 1/4 Inch C-C Adjustable Torque Rod For Rearward Axle

    21 1/4 Inch C-C Adjustable Torque Rod For Rearward Axle

    AFTERMARKET

    $344.99
    Adjustable T Rod With Bushings* High Quality Torque Rod* 21 1/4 Inch C To C* Adjustable* Rearward Axle* (2) Bushings (Included)* Made In USA* Sold Individually* Warranty On Torque Rods Against...
    29-05100264
    SKU:
    29-05100264
    Material Options:
    Steel
    Truck Class:
    Universal
    Length Options:
    21 Inch
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $344.99
    Qty in Cart: 0
    Price:
    $344.99
    Subtotal:
  • Bimetal Bushing 1-1/4 X 1-1/2 X 3 Inch

    Bimetal Bushing 1-1/4 X 1-1/2 X 3 Inch

    AUTOMANN USA

    $10.18
    Bimetal Bushing Replaces 3769289, C2Tz5781A, 51463, 51463000, And 1027756* High Quality Bushing* Dimensions: - 1-1/4 Inch ID - 1-1/2 Inch OD - 3.0 Inch Length* Sold Individually* Warranty On Bushings...
    29-05100340
    SKU:
    29-05100340
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Diameter Options:
    3 Inch
    Make:
    Chevrolet
    Make:
    Mack
    Make:
    Bus
    Make:
    International
    Make:
    Ford
    Make:
    Hino
    Make:
    Peterbilt
    Product Type:
    Frame & Chassis
    $10.18
    Qty in Cart: 0
    Price:
    $10.18
    Subtotal:
  • 14 1/2 Inch Fixed Torque Rod For Forward Axle

    14 1/2 Inch Fixed Torque Rod For Forward Axle

    AFTERMARKET

    $213.99
    14 1/2 Inch C To C Fixed Torque Rod Replaces E-9585, E958, R309585, 16585-01, 1658501* High Quality Torque Rod* 14 1/2 Inch C To C* Fixed* Forward Axle* (2) Bushings (Included)* Made In USA* Sold...
    29-05090163
    SKU:
    29-05090163
    Length Options:
    14 1/2 Inch
    Material Options:
    Steel
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $213.99
    Qty in Cart: 0
    Price:
    $213.99
    Subtotal:
  • 4.5 Inch Shackle Lock Bolt 5/8 Inch -18 Thread For Transpro

    4.5 Inch Shackle Lock Bolt 5/8 Inch -18 Thread For Transpro

    AUTOMANN USA

    $4.61
    Leaf spring Lock Shackle Bolt 5/8 In-18 x 4-1/2 inches* High Quality Shackle Bolt* Dimensions: - 5/8 Inch Bolt Diameter - 4 1/2 Inch Bolt Length* Lock Bolt* Bolt Type- Hex Bolts* Thread 18* Pitch-...
    29-05100351
    SKU:
    29-05100351
    Truck Class:
    Heavy Duty
    Diameter Options:
    5/8 Inch
    Material Options:
    Steel
    Make:
    Mack
    Make:
    International
    Make:
    Chevrolet
    Make:
    Volvo
    Make:
    Other - Semi-Truck
    Product Type:
    Frame & Chassis
    $4.61
    Qty in Cart: 0
    Price:
    $4.61
    Subtotal:
  • Beam Bushing Kit For Hendrickson Rear Air Suspension

    Beam Bushing Kit For Hendrickson Rear Air Suspension

    AUTOMANN USA

    $573.99
    Rear Air Suspension Bushing Kit* High Quality Beam Bushing Kit* Includes: - (4) End Beam Bushings - (2) Center Bushings - (4) Adapter Kits* Sold Individually* Warranty On Beam Bushing Kits Against...
    29-05100338
    SKU:
    29-05100338
    Material Options:
    Steel
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $573.99
    Qty in Cart: 0
    Price:
    $573.99
    Subtotal:
  • D-Pin Bolt Kit - 56659009 For Hendrickson Primaax

    D-Pin Bolt Kit - 56659009 For Hendrickson Primaax

    AFTERMARKET

    $47.23
    D-Pin Bolt Kit With Shackle Bolt, Washer & Lock Nut* High Quality D-Pin Bolt Kit* Includes: - (4) Shackle Bolt - (4) Iron Flat Washer  - (4) Lock Nut* Made In USA* Sold Individually* Warranty On...
    29-05250024
    SKU:
    29-05250024
    Material Options:
    Steel
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $47.23
    Qty in Cart: 0
    Price:
    $47.23
    Subtotal:
  • 24 1/2 Inch Fixed Torque Rod For Forward Axle

    24 1/2 Inch Fixed Torque Rod For Forward Axle

    AFTERMARKET

    $206.99
    24 1/2 Inch C To C Fixed Torque Rod Replaces E-15293, E15293, R3015293, 16589-01, 1658901* High Quality Torque Rod* 24 1/2 Inch C To C* Fixed* Forward Axle* (2) Bushings (Included)* Made In USA* Sold...
    29-05090162
    SKU:
    29-05090162
    Material Options:
    Steel
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $206.99
    Qty in Cart: 0
    Price:
    $206.99
    Subtotal:
  • Round U Bolt Kit 7/8 X 3 X 16-1/2 Inch

    Round U Bolt Kit 7/8 X 3 X 16-1/2 Inch

    AUTOMANN USA

    $70.99
    Round Bend U Bolt Kit Replaces 47417001, 58639-9, 58639009, 0850101, 0970901, 21090165, And 20872770* High Quality U Bolt Kit* Includes: - (2) U Bolts - (4) U Bolt Washers  - (4) Deep Nuts*...
    29-05100344
    SKU:
    29-05100344
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Make:
    Trailer
    Make:
    Volvo
    Product Type:
    Frame & Chassis
    $70.99
    Qty in Cart: 0
    Price:
    $70.99
    Subtotal:
  • Bi-Metal King Pin Bushing 187 ID, 2.054 OD, 1.997 Inch - 5351113

    Bi-Metal King Pin Bushing 187 ID, 2.054 OD, 1.997 Inch - 5351113

    AUTOMANN USA

    $29.67
    Bi-Metal Grooved King Pin Bushing Replaces Part 5351113* High Quality King Pin Bushing* Dimensions: - 1.87 Inch ID - 2.054 Inch OD - 1.997 Inch Length* Bimetal * Indented * Grooved* Sold...
    29-05100337
    SKU:
    29-05100337
    Truck Class:
    Universal
    Diameter Options:
    1 1/2 Inch
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $29.67
    Qty in Cart: 0
    Price:
    $29.67
    Subtotal:
  • Poly Insulator Kit With Hardware For Mack

    Poly Insulator Kit With Hardware For Mack

    AFTERMARKET

    $1,141.99
    Severe Duty Insulator Poly Mack Kit* High Quality Insulator Kit* Includes:  - (4) 3.75 Inch Insulator - (4) 3 Inch Insulator - (4) Insulator Bolts - (12) 7/8 Inch -14 X 6 Inch Insulator Bolts - (16)...
    11-05100049
    SKU:
    11-05100049
    Material Options:
    Plastic/Poly
    Truck Class:
    Heavy Duty
    Make:
    Mack
    Product Type:
    Frame & Chassis
    $1,141.99
    Qty in Cart: 0
    Price:
    $1,141.99
    Subtotal:
  • Poly Lower Upper Premium Insulator Kit With Hardware For Mack

    Poly Lower Upper Premium Insulator Kit With Hardware For Mack

    AFTERMARKET

    $906.99
    Mack Poly Lower Upper Premium Insulator KitImprove your Mack truck's vibration control and structural support with the Poly Lower Upper Premium Insulator Kit. Made from durable poly material, it...
    11-05100050
    SKU:
    11-05100050
    Truck Class:
    Heavy Duty
    Material Options:
    Plastic/Poly
    Make:
    Mack
    Product Type:
    Frame & Chassis
    $906.99
    Qty in Cart: 0
    Price:
    $906.99
    Subtotal:
  • Universal Joint Strap Kit For 5279X

    Universal Joint Strap Kit For 5279X

    AUTOMANN USA

    $5.08
    Universal Joint Strap Kit - 2.310 Inch C To C* High Quality Joint Strap Kit* Dimensions: - 2.310 Inch C To C - 5/16 Inch-24 Bolt - 0.36 Inch Bolt Hole Diameter - 0.62 Inch Serration Length* Sold...
    09-05210031
    SKU:
    09-05210031
    Material Options:
    Aluminum
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $5.08
    Qty in Cart: 0
    Price:
    $5.08
    Subtotal:
  • 11 Inch Hex Bolt 7/8in-14 Thread Grade 8

    11 Inch Hex Bolt 7/8in-14 Thread Grade 8

    AUTOMANN USA

    $16.18
    Grade 8 - 11 Inch Hex Bolt Replaces OE 1140023* High Quality Bolt* Dimensions: - 7/8 Inch Bolt Diameter - 11 Inch Bolt Length * 14 Threads* Pitch- Fine* Grade- 8* Sold Individually* Warranty On Bolts...
    09-05200015
    SKU:
    09-05200015
    Material Options:
    Steel
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $16.18
    Qty in Cart: 0
    Price:
    $16.18
    Subtotal:
  • Universal Joint Strap Kit For 1710, 1760, 1810 Series

    Universal Joint Strap Kit For 1710, 1760, 1810 Series

    AUTOMANN USA

    $10.17
    Universal Joint Strap Kit - 2.437 Inch C To CKeep your drive shaft functioning at its best with this precision Universal Joint Strap Kit, designed for 1710, 1760, and 1810 series vehicles. With 2...
    09-05210032
    SKU:
    09-05210032
    Material Options:
    Aluminum
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $10.17
    Qty in Cart: 0
    Price:
    $10.17
    Subtotal:
  • Adjustable Drag Link Passenger Side Thread 20.850 Inch C To C Replaces DL2348 For Kenworth Cabover & K100 Cabover

    Adjustable Drag Link Passenger Side Thread 20.850 Inch C To C Replaces DL2348 For Kenworth Cabover & K100 Cabover

    AUTOMANN USA

    $317.99
    Passenger Side Thread 20.850 Inch C To C Adjustable Drag Link Replaces DL2348 FDL998 K162420 R250061 Fits Kenworth Cabover & K100 CaboverReplace a worn or damaged steering component with this High...
    02-05090020
    SKU:
    02-05090020
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Product Type:
    Frame & Chassis
    $317.99
    Qty in Cart: 0
    Price:
    $317.99
    Subtotal:
  • Drum Bolt Assemblies 2 Inch

    Drum Bolt Assemblies 2 Inch

    AFTERMARKET

    $229.99 - $321.99
    Choose Option(s) to see description.Drum Bolt Assemblies 5/8 Inch-18 x 2 Inch - 150 Pieces150 Pieces - 2 Inch Bolt Assembly W/ 5/8 Inch-18 Thread* High Quality Drum Bolt Assembly* 5/8 Inch-18 x 2...
    PPR_205994
    SKU:
    PPR_205994
    Material Options:
    Steel
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $229.99 - $321.99
    Qty in Cart: 0
    Price:
    $229.99 - $321.99
    Subtotal:
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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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