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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
  • 378M Drawbar Guide Used W/ 100 & 270 Couplings

    378M Drawbar Guide Used W/ 100 & 270 Couplings

    PREMIER

    $389.99
    Drawbar Guide* High Quality Drawbar Guide* Used With 100 And 270 Couplings* Guides Act As An Aid To Operators When Hooking Up Equipment* Cast From High Strength Steel And Are Easily InstalLED By...
    09-051100863
    SKU:
    09-051100863
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $389.99
    Qty in Cart: 0
    Price:
    $389.99
    Subtotal:
  • 271 Standard Thimble Pushrod, 7/8 X 6 1/2 Inch

    271 Standard Thimble Pushrod, 7/8 X 6 1/2 Inch

    PREMIER

    $59.99
    Standard Thimble Pushrod* High Quality Thimble Pushrod* 7/8 Inch X 6-1/2 Inch Length* Used On The End Of The Pushrod Of An Air Chamber That Contacts The Slack Adjustment Shoe In Air Take Up...
    09-051100878
    SKU:
    09-051100878
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $59.99
    Qty in Cart: 0
    Price:
    $59.99
    Subtotal:
  • 455 Hinge Assembly W/ Rubber Bushings

    455 Hinge Assembly W/ Rubber Bushings

    PREMIER

    $988.99
    Hinge Assembly Accepts 2 X 4 Inch Rectangular Tubing* High Quality Hinge Assembly* Includes:   - ( 2) Bolts And Nuts   - Bracket  - Pin  - Adjustable Shoe  - (2) Rubber Bushing  - Housing And   - (2)...
    09-051100855
    SKU:
    09-051100855
    Truck Class:
    Universal
    Rating:
    100000 LBS
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $988.99
    Qty in Cart: 0
    Price:
    $988.99
    Subtotal:
  • 467H Non-Standard Air Chamber Bracket, 3/4 Inch

    467H Non-Standard Air Chamber Bracket, 3/4 Inch

    PREMIER

    $118.99
    Non- Standard Air Chamber Bracket* High Quality Non- Standard Air Chamber Bracket* 3/4- Inch Overall Length* For Use With 360/370/470/470H/2300/2400/2400H And Saf-Tite 100-3/100-4 And 100-4H Slack...
    09-051100874
    SKU:
    09-051100874
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $118.99
    Qty in Cart: 0
    Price:
    $118.99
    Subtotal:
  • Replacement Rubber Bushing For 440 And 450 Hinge Assemblies

    Replacement Rubber Bushing For 440 And 450 Hinge Assemblies

    PREMIER

    $43.69
    3 1/2 In ID Rubber Replacement Hinge Bushing* High Quality Replacement Bushing* 1-3/4 Inch Length X 3-1/2 Inch OD X 2 Inch ID * Do Not Apply Lubricants To The Drawbar Eye Loop* Made In USA* Sold...
    09-051100851
    SKU:
    09-051100851
    Truck Class:
    Universal
    Diameter Options:
    3 1/2 Inch
    Material Options:
    Rubber
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $43.69
    Qty in Cart: 0
    Price:
    $43.69
    Subtotal:
  • Extended Life Coupling Hardware Kit

    Extended Life Coupling Hardware Kit

    PREMIER

    $311.99
    El Replacement Parts Kit* High Quality El Replacement Parts Kit* For Use With 2200/2300/2300B/2400/2400H/2880 Couplings* Made In USA* Sold As Set* Warranty On El Replacement Parts Kits Against...
    09-051100897
    SKU:
    09-051100897
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $311.99
    Qty in Cart: 0
    Price:
    $311.99
    Subtotal:
  • 767 Standard Air Chamber Bracket, 2.75 Inch

    767 Standard Air Chamber Bracket, 2.75 Inch

    PREMIER

    $195.99
    Chamber Bracket For 780, 880 And 2880 Slack Reducing Couplings* High Quality Standard Air Chamber Bracket* 2-3/4 Inch Overall Length* For Use With 780/880 And 2880 Slack Reducing Couplings* Made In...
    09-051100870
    SKU:
    09-051100870
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $195.99
    Qty in Cart: 0
    Price:
    $195.99
    Subtotal:
  • Replacement Poly Bushings For Use W/ 430 Hinge

    Replacement Poly Bushings For Use W/ 430 Hinge

    PREMIER

    $96.99
    4..25 Inch OD Rubber Bushing W/ Tapered Hole* High Quality Replacement Bushing* 4-1/4 Inch OD X 5 Inch Length* Rubber Bushing* With Tapered Hole* For Use With 430 Hinge Assembly* Made In USA* Sold...
    09-051100847
    SKU:
    09-051100847
    Diameter Options:
    4 1/4 Inch
    Length Options:
    5 Inch
    Truck Class:
    Universal
    Material Options:
    Rubber
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $96.99
    Qty in Cart: 0
    Price:
    $96.99
    Subtotal:
  • Type 24 Air Chamber W/ 12 Inch Pushrod

    Type 24 Air Chamber W/ 12 Inch Pushrod

    PREMIER

    $158.99
    Air Chamber For Pintle Hook & Drawbar Eye Applications* High Quality Air Chamber* 12 Inch Pushrod* Type 24* Maximum Force At 100 PSI / 2400 Lbs* For Pintle Hook And Drawbar Eye Applications* Made In...
    09-051100866
    SKU:
    09-051100866
    Truck Class:
    Universal
    Length Options:
    12 Inch
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $158.99
    Qty in Cart: 0
    Price:
    $158.99
    Subtotal:
  • 330 Hinge Assembly W/ Rubber Bushings

    330 Hinge Assembly W/ Rubber Bushings

    PREMIER

    $1,078.99
    Hinge Assembly Accepts 2.5 Inch Round Tubing* High Quality Hinge Assembly* Includes:  - Locknut  - (2) Flat Washers  - Rubber Bushing  - Bracket  - (2) Bolts And Nuts  - Taper Pin  - Housing  -...
    09-051100843
    SKU:
    09-051100843
    Truck Class:
    Universal
    Rating:
    100000 LBS
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $1,078.99
    Qty in Cart: 0
    Price:
    $1,078.99
    Subtotal:
  • 271 Standard Thimble Pushrod, 7/8 X 5 1/2 Inch

    271 Standard Thimble Pushrod, 7/8 X 5 1/2 Inch

    PREMIER

    $48.88
    Standard Thimble Pushrod* High Quality Thimble Pushrod* 7/8 Inch X 5-1/2 Inch Length* Used On The End Of The Pushrod Of An Air Chamber That Contacts The Slack Adjustment Shoe In Air Take Up...
    09-051100877
    SKU:
    09-051100877
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $48.88
    Qty in Cart: 0
    Price:
    $48.88
    Subtotal:
  • 387 Drawbar Guide For 360, 370, 370B, 570, 770, 2300 And 2300B Couplings

    387 Drawbar Guide For 360, 370, 370B, 570, 770, 2300 And 2300B Couplings

    PREMIER

    $358.99
    Drawbar Guide* High Quality Drawbar Guide* Used With 360/370/370B/570/770/2300 And 2300B Couplings* Guides Act As An Aid To Operators When Hooking Up Equipment* Cast From High Strength Steel And Are...
    09-051100862
    SKU:
    09-051100862
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $358.99
    Qty in Cart: 0
    Price:
    $358.99
    Subtotal:
  • 320 Hinge Assembly W/ Rubber Bushings

    320 Hinge Assembly W/ Rubber Bushings

    PREMIER

    $1,078.99
    Hinge Assembly W/ Rubber Bushings Accepts 3 Inch Standard Channel Or Square Tubing* High Quality Hinge Assembly* Includes:   - Bolt  - Locknut  - (2) Flat Washers  - Rubber Bushing  - Bracket  - (2)...
    09-051100839
    SKU:
    09-051100839
    Rating:
    100000 LBS
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $1,078.99
    Qty in Cart: 0
    Price:
    $1,078.99
    Subtotal:
  • 267H Non - Standard Air Chamber Bracket, 3/4 Inch

    267H Non - Standard Air Chamber Bracket, 3/4 Inch

    PREMIER

    $115.99
    Non- Standard Air Chamber Bracket For 270/2200/Saf-Tite 100 And 820 Slack Reducing Couplings* High Quality Non- Standard Air Chamber Bracket* 3/4- Inch Overall Length* For Use With 270/2200/Saf-Tite...
    09-051100873
    SKU:
    09-051100873
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $115.99
    Qty in Cart: 0
    Price:
    $115.99
    Subtotal:
  • Replacement Poly Bushings For Use W/ 930A Hinge - 2 Piece

    Replacement Poly Bushings For Use W/ 930A Hinge - 2 Piece

    PREMIER

    $131.99
    4.25 Inch OD Poly Bushings W/ Tapered Holes* High Quality Replacement Bushing* OD 4-1/4 Inch Tapered X 2-1/4 Inch Length 1 X ID 1-7/8 In* Poly Bushing* For Use With 09-051100857 Hinge Assembly* Made...
    09-051100858
    SKU:
    09-051100858
    Diameter Options:
    4 1/4 Inch
    Color:
    Orange
    Truck Class:
    Universal
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $131.99
    Qty in Cart: 0
    Price:
    $131.99
    Subtotal:
  • 467 Standard Air Chamber Bracket, 2.75 Inch

    467 Standard Air Chamber Bracket, 2.75 Inch

    PREMIER

    $115.99
    Air Chamber Bracket* High Quality Standard Air Chamber Bracket* 2-3/4 Inch Overall Length* For Use With 360/370/470/470H2300/2400/2400H And Saf-Tite 100-3/100-4 And 100-4H Slack Reducing Couplings*...
    09-051100869
    SKU:
    09-051100869
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $115.99
    Qty in Cart: 0
    Price:
    $115.99
    Subtotal:
  • 450A Hinge Assembly W/ Poly Bushings

    450A Hinge Assembly W/ Poly Bushings

    PREMIER

    $1,060.99
    Hinge Assembly Accepts 2.5 Inch Round Tubing* High Quality Hinge Assembly* Includes:   - (2) Bolts And Nuts  - Bracket  - Pin  - Adjustable Shoe  - Housing  - (2) Bolts  - (2) Poly Bushings  -...
    09-051100854
    SKU:
    09-051100854
    Rating:
    100000 LBS
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $1,060.99
    Qty in Cart: 0
    Price:
    $1,060.99
    Subtotal:
  • Type 24 Air Chamber W/ 8 Inch Pushrod

    Type 24 Air Chamber W/ 8 Inch Pushrod

    PREMIER

    $149.99
    Air Chamber For Pintle Hook & Drawbar Eye Applications* High Quality Air Chamber* 8 Inch Pushrod * Type 24* Maximum Force At 100 PSI / 2400 Lbs * For Pintle Hook And Drawbar Eye Applications* Made In...
    09-051100865
    SKU:
    09-051100865
    Truck Class:
    Universal
    Length Options:
    8 Inch
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $149.99
    Qty in Cart: 0
    Price:
    $149.99
    Subtotal:
  • 440 Hinge Assembly W/ Ploy Bushings

    440 Hinge Assembly W/ Ploy Bushings

    PREMIER

    $1,073.99
    Hinge Assembly Accepts 3 Inch Standard Or Square Tubing* High Quality Hinge Assembly* Includes:   - (2) Bolts And Nuts  - Housing  - Bracket  - Pin  - Adjustable Shoe  - (2) Bolts  - (2) Poly...
    09-051100850
    SKU:
    09-051100850
    Truck Class:
    Universal
    Rating:
    100000 LBS
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $1,073.99
    Qty in Cart: 0
    Price:
    $1,073.99
    Subtotal:
  • 556B Front End Housing W/ Poly Bushings For Use W/ 207SE, 307SE, 405SE, 407SE Swivel Drawbar Eyes

    556B Front End Housing W/ Poly Bushings For Use W/ 207SE, 307SE, 405SE, 407SE Swivel Drawbar Eyes

    PREMIER

    $757.99
    5-3/16 Inch Front End Housing For Use W/ Swivel Drawbar Eyes* High Quality Front End Housing* Includes:  - Housing  - Rubber Bushings  - Washer* Bushing Inside Diameter 2 Inch* Bushing Outside...
    09-051100833
    SKU:
    09-051100833
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $757.99
    Qty in Cart: 0
    Price:
    $757.99
    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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