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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
  • Camshaft Bushing 1.5 ID X 1.875 OD X 1.88 Inch

    Camshaft Bushing 1.5 ID X 1.875 OD X 1.88 Inch

    AUTOMANN USA

    $1.02
    Camshaft Bushing Replaces1225L1208, 1691529C2, 1125P640, 1125R1058* High Quality Cam Bushing* Dimensions:  - 1.5 Inch I.D.  - 1.875 Inch O.D.  - 1.88 Inch Length* Sold Individually* Warranty On Cam...
    09-0517112
    SKU:
    09-0517112
    Truck Class:
    Universal
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $1.02
    Qty in Cart: 0
    Price:
    $1.02
    Subtotal:
  • BESTfit Bronze Camshaft Bushing 1.5 ID X 1.875 OD X 1.25 Inch - 1125X336

    BESTfit Bronze Camshaft Bushing 1.5 ID X 1.875 OD X 1.25 Inch - 1125X336

    BESTFIT TRUCK PARTS

    $8.89
    BESTfit Bronze Camshaft BushingThe bronze camshaft bushing is used in Eaton and Meritor steer axles, as well as Eaton and Meritor drive axles. It features a 1.5-inch inner diameter, a 1.875-inch...
    09-05170149
    SKU:
    09-05170149
    Truck Class:
    Universal
    Material Options:
    Bronze
    Diameter Options:
    1 1/2 Inch
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $8.89
    Qty in Cart: 0
    Price:
    $8.89
    Subtotal:
  • Deep Nut 0.375 In-2 TPI X 0.531 Inch Grade 5

    Deep Nut 0.375 In-2 TPI X 0.531 Inch Grade 5

    AUTOMANN USA

    $0.34
    Grade 5 0.531 Inch Deep Nut With 0.375 Inch-24 Threads* High Quality Deep Nut* Dimensions:  - 0.562 Inch Diameter  - 0.531 Inch Height* Threads- 0.375 Inch-24 TPI* Sold Individually* Warranty On Deep...
    09-05250033
    SKU:
    09-05250033
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $0.34
    Qty in Cart: 0
    Price:
    $0.34
    Subtotal:
  • BESTfit Camshaft Bushing 1.50 ID X 1.875 OD X 1.187 Inch

    BESTfit Camshaft Bushing 1.50 ID X 1.875 OD X 1.187 Inch

    BESTFIT TRUCK PARTS

    $8.90
    BESTfit Camshaft Bushing Replaces 1225H1568* High Quality Camshaft Bushing* Dimensions: - 1.50 Inch ID  - 1.875 Inch OD  - 1.187 Inch Length* Sold Individually* Warranty On Camshaft Bushings Against...
    09-05170023
    SKU:
    09-05170023
    Truck Class:
    Universal
    Material Options:
    Polyester
    Diameter Options:
    1 1/2 Inch
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $8.90
    Qty in Cart: 0
    Price:
    $8.90
    Subtotal:
  • Brake Spider Bolt Assembly 1/2in-20 X 1-3/4 Inch

    Brake Spider Bolt Assembly 1/2in-20 X 1-3/4 Inch

    AUTOMANN USA

    $3.14
    1-3/4 Inch Bolt W/ 1/2 Inch SAE Plan Nut For Spider Brakes* High Quality Bolt Assembly* Consists Of  - (1) Bolt 1-3/4 Inch  - (1) SAE Plain Nuts 1/2 Inch* Thread 1/2 Inch-20* For Brake Spiders* Sold...
    09-05170085
    SKU:
    09-05170085
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $3.14
    Qty in Cart: 0
    Price:
    $3.14
    Subtotal:
  • Brake Kit W/ Anchor Pin & 9 1/2 Inch Black Springs For New Flyer 410mm X 160mm Brake

    Brake Kit W/ Anchor Pin & 9 1/2 Inch Black Springs For New Flyer 410mm X 160mm Brake

    AFTERMARKET

    $103.99
    Brake Kit W/ Anchor Pin & 9 1/2 Inch Black Springs* High Quality Brake Kit* Kit Consists Of: - (1) Anchor Pin Kit  - (2) 9 1/2 Inch Black Springs* Drum Diameter- 410 MM* Shoe Width- 160 MM* Double...
    09-05170071
    SKU:
    09-05170071
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $103.99
    Qty in Cart: 0
    Price:
    $103.99
    Subtotal:
  • Brake Rotor Bolt 14mm-1.5 X 65mm

    Brake Rotor Bolt 14mm-1.5 X 65mm

    AUTOMANN USA

    $4.46
    12 Point Brake Rotor Bolt Replaces 04375100911* High Quality Brake Rotor Bolt* Thread- M14-1.5* Head Type- 12 Point* Sold Individually* Warranty On Brake Rotor Bolts Against Defects In Workmanship &...
    09-05170110
    SKU:
    09-05170110
    Material Options:
    Steel
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $4.46
    Qty in Cart: 0
    Price:
    $4.46
    Subtotal:
  • Cotter Pin 1/4 X 1-1/2 Inch

    Cotter Pin 1/4 X 1-1/2 Inch

    AUTOMANN USA

    $0.44
    1/4 X 1-1/2 Inch Cotter Pin* High Quality Cotter Pin* 1/4 Inch X 1-1/2 Inch Length* Sold Individually* Warranty On Cotter Pins Against Defects In Workmanship & Material From Date Of Purchase*** High...
    09-05110021
    SKU:
    09-05110021
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $0.44
    Qty in Cart: 0
    Price:
    $0.44
    Subtotal:
  • BESTfit Nylon Brake Camshaft Bushing 1.5 ID X 2.125 OD X 1 Inch

    BESTfit Nylon Brake Camshaft Bushing 1.5 ID X 2.125 OD X 1 Inch

    BESTFIT TRUCK PARTS

    $2.04
    BESTfit Nylon Brake Camshaft Bushing Replaces E-2361, E2361, 714923, 1225-R-1058* High Quality Camshaft Bushing* Dimensions: - 1.500 Inch ID - 2.125 Inch OD - 1.00 Inch Length* Sold Individually*...
    09-05170003
    SKU:
    09-05170003
    Material Options:
    Rubber
    Diameter Options:
    1 1/2 Inch
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $2.04
    Qty in Cart: 0
    Price:
    $2.04
    Subtotal:
  • Brake Kit With Roller Pin And Hardware For New Flyer 410mm X 160mm Brake

    Brake Kit With Roller Pin And Hardware For New Flyer 410mm X 160mm Brake

    AFTERMARKET

    $85.99
    Brake Kit With Roller Pin And Hardware* High Quality Brake Kit* Includes:  - Roller Pin  - Hardware* Drum Diameter- 410 MM* Shoe Width- 160 MM* Components Not Available Separately* Made In USA* Sold...
    09-05170070
    SKU:
    09-05170070
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $85.99
    Qty in Cart: 0
    Price:
    $85.99
    Subtotal:
  • Pivot Hex Bolt 1 In -8 X 8 Inch Grade 8

    Pivot Hex Bolt 1 In -8 X 8 Inch Grade 8

    AUTOMANN USA

    $16.18
    Grade 8 Hex Bolts W/ Coarse Thread* High Quality Pivot Bolt* Dimensions: - 1 Inch Bolt Diameter - 8 Inch Bolt Length* Bolt Type- Hex Bolts* Thread- 8* Pitch- Coarse* Sold Individually* Warranty On...
    09-05090005
    SKU:
    09-05090005
    Length Options:
    8 Inch
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $16.18
    Qty in Cart: 0
    Price:
    $16.18
    Subtotal:
  • Semi-Round U Bolt Kit 3/4 X 4 X 14-1/4 Inch Grade 8 Replaces EUB8354142

    Semi-Round U Bolt Kit 3/4 X 4 X 14-1/4 Inch Grade 8 Replaces EUB8354142

    AFTERMARKET

    $60.99
    Semi Round 3/4 Inch-16 OD U-Bolt Kit, 4 Inch Wide, 14.25 Inch LongMaintain proper axle alignment and suspension integrity with this Semi-Round U Bolt Kit, a Grade 8 replacement for EUB8354142. The...
    09-05100009
    SKU:
    09-05100009
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $60.99
    Qty in Cart: 0
    Price:
    $60.99
    Subtotal:
  • King Pin Set 1.873 OD X 9.07 Inch Replaces ETN328349 For Kenworth T660, Peterbilt 379

    King Pin Set 1.873 OD X 9.07 Inch Replaces ETN328349 For Kenworth T660, Peterbilt 379

    AUTOMANN USA

    $333.99
    King Pin Replaces ETN328349, 328349, And 906638The King Pin Set 1.873 OD x 9.07 Inch is essential for maintaining precise steering and durable front suspension on Kenworth T660 and Peterbilt 379...
    09-051000003
    SKU:
    09-051000003
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $333.99
    Qty in Cart: 0
    Price:
    $333.99
    Subtotal:
  • 97DB Back-Up Alarm- 12/80VDC Dual Voltage 1250HZ

    97DB Back-Up Alarm- 12/80VDC Dual Voltage 1250HZ

    AUTOMANN USA

    $26.30
    Type C Back Up Alarm W/ Nylon HousingKeep your worksite safe with the 97DB Back-Up Alarm, engineered for heavy-duty vehicles with 12/80VDC dual voltage. Featuring a robust nylon housing and a...
    09-02050000
    SKU:
    09-02050000
    Truck Class:
    Universal
    Material Options:
    Nylon
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $26.30
    Qty in Cart: 0
    Price:
    $26.30
    Subtotal:
  • Round U-Bolt Kit 3/4 In-16 X 4in X 13-3/8 Inch Grade 8 For Blue Bird, Kenworth

    Round U-Bolt Kit 3/4 In-16 X 4in X 13-3/8 Inch Grade 8 For Blue Bird, Kenworth

    AFTERMARKET

    $54.99
    3/4 Inch Diameter Rounded Top U-Bolt KitDepend on the Round U-Bolt Kit 3/4 In-16 X 4in X 13-3/8 Inch Grade 8 to secure your Blue Bird or Kenworth truck suspension. This complete kit features two...
    02-05090002
    SKU:
    02-05090002
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Make:
    Bus
    Product Type:
    Frame & Chassis
    Position:
    Kit Full
    Ready To Ship:
    Yes
    $54.99
    Qty in Cart: 0
    Price:
    $54.99
    Subtotal:
  • BESTfit Round U Bolt Kit 3/4 In-16 X 4in X 10.375 Inch Grade 8 For Kenworth T660

    BESTfit Round U Bolt Kit 3/4 In-16 X 4in X 10.375 Inch Grade 8 For Kenworth T660

    BESTFIT TRUCK PARTS

    $29.59
    BESTfit Rounded Top U-Bolt Kit Replaces K241570257Ensure your Kenworth T660's suspension is safely secured with this high-quality BESTfit Round U-Bolt Kit. Designed for 3/4 In-16 X 4in X 10.375-inch...
    02-05090001
    SKU:
    02-05090001
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $29.59
    Qty in Cart: 0
    Price:
    $29.59
    Subtotal:
  • Bronze Bushing For Leaf Spring

    Bronze Bushing For Leaf Spring

    AUTOMANN USA

    $8.80 - $11.56
    Keep your suspension operating at peak performance with these Bronze Bushings for Leaf Spring systems, engineered for heavy-duty truck and trailer applications. Precision-machined for consistent...
    PPR_206139
    SKU:
    PPR_206139
    Truck Class:
    Heavy Duty
    Material Options:
    Bronze
    Make:
    International
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $8.80 - $11.56
    Qty in Cart: 0
    Price:
    $8.80 - $11.56
    Subtotal:
  • King Pin Shims 0.005 Inch Thick - 10 Pack

    King Pin Shims 0.005 Inch Thick - 10 Pack

    AUTOMANN USA

    $8.63
    Choose Option(s) to see description.King Pin Shims 1.875 x 2.812 Inch - 10 PackKing Pin Shims Replaces 60259-001, 80P1-2, KP2382, R210227* High Quality King Pin Shim* Dimensions: - 1.875 Inch ID  - 2...
    PPR_206118
    SKU:
    PPR_206118
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $8.63
    Qty in Cart: 0
    Price:
    $8.63
    Subtotal:
  • Joint Strap Kit Fits 1.375 Inch Bearing Cap - 6E7Z4635AA

    Joint Strap Kit Fits 1.375 Inch Bearing Cap - 6E7Z4635AA

    AUTOMANN USA

    $12.72
    Joint Strap Kit Fits 1.375 Inch Bearing Cap - 6E7Z4635AA* High Quality Joint Strap Kit* 2.13 Inch C/L To C/L* Sold Individually* Warranty On Joint Strap Kits Against Defects In Workmanship & Material...
    29-05210001
    SKU:
    29-05210001
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Product Type:
    Frame & Chassis
    $12.72
    Qty in Cart: 0
    Price:
    $12.72
    Subtotal:
  • Deep Nut 7/8 - 14 X 1.156 Grade 8

    Deep Nut 7/8 - 14 X 1.156 Grade 8

    AUTOMANN USA

    $1.33
    Grade 8 Deep Nut 7/8 Replaces OE D85005435, 2300461007, 23-00461-007, FSP00601001, SA13001, 3400, 144425H, 21AX406, 21AX65, 25098611, R303002A, CS65514B, 1055FX, 935201, 2068801, And 935201This Grade...
    29-05250013
    SKU:
    29-05250013
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $1.33
    Qty in Cart: 0
    Price:
    $1.33
    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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