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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
  • 8 Weld On Drawbar Eye For 2.5 Inch Round Tubing

    8 Weld On Drawbar Eye For 2.5 Inch Round Tubing

    PREMIER

    $267.99
    Weld-On Drawbar Eye For 2-1/2 Inch Round Tubing* High Quality Weld-On Drawbar Eye* Inside Diameter 2-3/8 Inch* Designed For 2-1/2 Inch Round Tubing* Max Gross Trailer Weight 100000 Lbs* Max Tongue...
    09-051100764
    SKU:
    09-051100764
    Rating:
    100000 LBS
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $267.99
    Qty in Cart: 0
    Price:
    $267.99
    Subtotal:
  • 4 Weld On Drawbar Eye

    4 Weld On Drawbar Eye

    PREMIER

    $201.99
    Weld-On Drawbar Eye W/ 2 3/8 Inch ID* High Quality Weld-On Drawbar Eye* Inside Diameter 2-3/8 Inch* Maximum Gross Trailer Weight 90000 Lbs* Maximum Tongue Weight 13500 Lbs* Never Attempt Weld Repair...
    09-051100779
    SKU:
    09-051100779
    Truck Class:
    Universal
    Rating:
    90000 LBS
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $201.99
    Qty in Cart: 0
    Price:
    $201.99
    Subtotal:
  • 300 Bolt On Drawbar Eye

    300 Bolt On Drawbar Eye

    PREMIER

    $273.99
    Bolt-On Drawbar Eye W/ 3 Inch ID* High Quality Bolt-On Drawbar Eye* Inside Diameter 3- Inch* Maximum Gross Trailer Weight 100000 Lbs* Maximum Tongue Weight 15000 Lbs* Never Attempt Weld Repair Of...
    09-051100790
    SKU:
    09-051100790
    Truck Class:
    Universal
    Rating:
    100000 LBS
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $273.99
    Qty in Cart: 0
    Price:
    $273.99
    Subtotal:
  • 205 Weld On Drawbar Eye For Rectangular Tubing

    205 Weld On Drawbar Eye For Rectangular Tubing

    PREMIER

    $290.99
    Weld On Drawbar Eye W/ 2-3/8 Inch ID* High Quality Weld-On Drawbar Eye* Inside Diameter 2-3/8 Inch* Designed For Rectangular Tubing 2 Inch X 4 Inch And 4 Inch X 4 Inch* Max Gross Trailer Weight...
    09-051100775
    SKU:
    09-051100775
    Truck Class:
    Universal
    Rating:
    100000 LBS
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $290.99
    Qty in Cart: 0
    Price:
    $290.99
    Subtotal:
  • 455A Hinge Assembly W/ Poly Bushings

    455A Hinge Assembly W/ Poly Bushings

    PREMIER

    $1,102.99
    Hinge Assembly Accepts 2 X 4 Inch Rectangular Tubing Or Channel* High Quality Hinge Assembly* Includes:   - (2) Bolts And Nuts  - Bracket  - Pin  - Adjustable Shoe  - (2) Poly Bushing  - Housing   -...
    09-051100856
    SKU:
    09-051100856
    Rating:
    100000 LBS
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $1,102.99
    Qty in Cart: 0
    Price:
    $1,102.99
    Subtotal:
  • 123 Drawbar Eye W/ 12 Inch Pushrod

    123 Drawbar Eye W/ 12 Inch Pushrod

    PREMIER

    $320.99
    Weld-On Slack Reducing Drawbar Eye For Use W/ 3 Inch Round Tubing* High Quality Weld-On Slack Reducing Eye* Includes:  - Shoe  - Drawbar Eye  - 12 Inch Pushrod* Inside Diameter 2-3/8 Inch* Designed...
    09-051100771
    SKU:
    09-051100771
    Truck Class:
    Universal
    Rating:
    100000 LBS
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $320.99
    Qty in Cart: 0
    Price:
    $320.99
    Subtotal:
  • 580 Permalloy Pintle Hitch Coupling

    580 Permalloy Pintle Hitch Coupling

    PREMIER

    $681.99
    580 Low Profile Coupling W/ External Oil Cup* High Quality Coupling* Maximum Grow Trailer Weight 70000 Lbs* Maximum Tongue Weight 14000 Lbs* Ultimate Latch Capacity 30000 Lbs* Maximum Eye X-Section...
    09-051100748
    SKU:
    09-051100748
    Rating:
    70000 LBS
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $681.99
    Qty in Cart: 0
    Price:
    $681.99
    Subtotal:
  • Replacement Rubber Bushing, 2 PC For 440, 450 And 455 Hinge Assemblies

    Replacement Rubber Bushing, 2 PC For 440, 450 And 455 Hinge Assemblies

    PREMIER

    $78.99
    2 Piece Replacement W/ 3.5 Inch OD* High Quality Replacement Bushing* 1-3/4 Inch Length X 3-1/2 Inch OD X 2 Inch ID * Clean And Inspect Drawbar Eyes And Eye Assemblies For Damage Or Excessive Wear...
    09-051100852
    SKU:
    09-051100852
    Diameter Options:
    3 1/2 Inch
    Color:
    Orange
    Truck Class:
    Universal
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $78.99
    Qty in Cart: 0
    Price:
    $78.99
    Subtotal:
  • 110 Drawbar Eye W/ 8 Inch Pushrod

    110 Drawbar Eye W/ 8 Inch Pushrod

    PREMIER

    $415.99
    Weld-On Slack Reducing Drawbar Eye For Use W/ 2.5 Inch Round Tubing* High Quality Weld-On Slack Reducing Eye* Includes:  - Shoe  - Drawbar Eye  - 8 Inch Pushrod* Inside Diameter 2-3/8 Inch* Designed...
    09-051100767
    SKU:
    09-051100767
    Truck Class:
    Universal
    Rating:
    100000 LBS
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $415.99
    Qty in Cart: 0
    Price:
    $415.99
    Subtotal:
  • 3 Weld On Drawbar Eye

    3 Weld On Drawbar Eye

    PREMIER

    $182.99
    Weld On Drawbar Eye W/ 2 1/16 Inch ID* High Quality Weld-On Drawbar Eye* Inside Diameter 2-1/16 Inch* Maximum Gross Trailer Weight 70000 Lbs* Maximum Tongue Weight 10500 Lbs* Never Attempt Weld...
    09-051100778
    SKU:
    09-051100778
    Rating:
    70000 LBS
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $182.99
    Qty in Cart: 0
    Price:
    $182.99
    Subtotal:
  • 240KL Coupling W/ 133K Left Bar Latch Lock Installed

    240KL Coupling W/ 133K Left Bar Latch Lock Installed

    PREMIER

    $558.99
    Coupling W/ Latch BarThe 240KL Coupling with 133Kl Left Bar Latch lock installed has an effortless-to-handle latch mechanism that is highly resistant to impact. The pintle body is crafted using the...
    09-051100738
    SKU:
    09-051100738
    Truck Class:
    Universal
    Rating:
    45000 LBS
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $558.99
    Qty in Cart: 0
    Price:
    $558.99
    Subtotal:
  • Poly Bushing For Use With 430 Hinge Assembly

    Poly Bushing For Use With 430 Hinge Assembly

    PREMIER

    $131.99
    5 Inch Poly Bushing With 4 1/4 Inch OD* High Quality Replacement Bushing* 4-1/4 Inch OD X 5 Inch Length* Never Attempt Weld Repair Of Damaged Or Worn Drawbar Eyes* Made In USA* Sold Individually*...
    09-051100848
    SKU:
    09-051100848
    Color:
    Orange
    Truck Class:
    Universal
    Length Options:
    5 Inch
    Diameter Options:
    4 1/4 Inch
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $131.99
    Qty in Cart: 0
    Price:
    $131.99
    Subtotal:
  • 6A Weld On Drawbar Eye Retrofit For Fruehauf Dolly

    6A Weld On Drawbar Eye Retrofit For Fruehauf Dolly

    PREMIER

    $487.99
    Weld-On Drawbar Eye* High Quality Weld-On Drawbar Eye* Inside Diameter 2-3/8 Inch* Max Gross Trailer Weight 100000 Lbs* Max Tongue Weight 15000 Lbs* Slack Reducing Drawbar Eyes Must Be Used With An...
    09-051100763
    SKU:
    09-051100763
    Truck Class:
    Universal
    Rating:
    100000 LBS
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $487.99
    Qty in Cart: 0
    Price:
    $487.99
    Subtotal:
  • 23 Weld On Drawbar Eye W/ 45 Degree V Angle

    23 Weld On Drawbar Eye W/ 45 Degree V Angle

    PREMIER

    $278.99
    Weld On Drawbar Eye W/ 2-3/8 Inch ID* High Quality Weld-On Drawbar Eye* Inside Diameter 2-3/8 Inch* 45 Degree V Angle* Weld Tabs Can Be Heated And Bent Plus/Minus 10 Degrees To Accommodate...
    09-051100774
    SKU:
    09-051100774
    Rating:
    100000 LBS
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $278.99
    Qty in Cart: 0
    Price:
    $278.99
    Subtotal:
  • 330 Hinge Assembly W/ Poly Bushings

    330 Hinge Assembly W/ Poly Bushings

    PREMIER

    $1,180.99
    Hinge Assembly Accepts 2.5 Inch Round Tubing* High Quality Hinge Assembly* Includes:   - Locknut  - (2) Flat Washers  - Poly Bushing  - Bracket  - (2) Bolts And Nuts  - Taper Pin  - Housing  -...
    09-051100844
    SKU:
    09-051100844
    Rating:
    100000 LBS
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $1,180.99
    Qty in Cart: 0
    Price:
    $1,180.99
    Subtotal:
  • 320 Hinge Assembly W/ Poly Bushings

    320 Hinge Assembly W/ Poly Bushings

    PREMIER

    $1,161.99
    Hinge Assembly Accepts 3 Inch Standard Channel Or Square Tubing* High Quality Hinge Assembly* Includes:   - Bolt  - Locknut  - (2) Flat Washers  - Poly Bushing  - Bracket  - (2) Bolts And Nuts  -...
    09-051100840
    SKU:
    09-051100840
    Truck Class:
    Universal
    Rating:
    100000 LBS
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $1,161.99
    Qty in Cart: 0
    Price:
    $1,161.99
    Subtotal:
  • 123 Drawbar Eye W/ 8 Inch Pushrod

    123 Drawbar Eye W/ 8 Inch Pushrod

    PREMIER

    $320.99
    Weld-On Slack Reducing Drawbar Eye For Use W/ 3 Inch Round Tubing* High Quality Weld-On Slack Reducing Eye* Includes:  - Shoe  - Drawbar Eye  - 8 Inch Pushrod* Inside Diameter 2-3/8 Inch* Designed...
    09-051100770
    SKU:
    09-051100770
    Rating:
    100000 LBS
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $320.99
    Qty in Cart: 0
    Price:
    $320.99
    Subtotal:
  • 580J Pintle Hitch Coupling

    580J Pintle Hitch Coupling

    PREMIER

    $724.99
    580J Pintle Hitch Coupling* High Quality Coupling* Maximum Grow Trailer Weight 90000 Lbs* Maximum Tongue Weight 18000 Lbs* Ultimate Latch Capacity 30000 Lbs * Maximum Eye X-Section 1-13/16 Inch*...
    09-051100751
    SKU:
    09-051100751
    Rating:
    90000 LBS
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $724.99
    Qty in Cart: 0
    Price:
    $724.99
    Subtotal:
  • 556R Front End Housing W/ Poly Bushing For Use W/ 207SE Swivel Drawbar Eyes

    556R Front End Housing W/ Poly Bushing For Use W/ 207SE Swivel Drawbar Eyes

    PREMIER

    $478.99
    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 2-1/2 Inch* Bushing Outside...
    09-051100834
    SKU:
    09-051100834
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $478.99
    Qty in Cart: 0
    Price:
    $478.99
    Subtotal:
  • 110 Drawbar Eye W/ 7 Inch Pushrod

    110 Drawbar Eye W/ 7 Inch Pushrod

    PREMIER

    $428.99
    Weld-On Slack Reducing Drawbar Eye For Use W/ 2.5 Inch Round Tubing* High Quality Weld-On Slack Reducing Eye* Includes:  - Shoe  - Drawbar Eye  - 7 Inch Pushrod* Inside Diameter 2-3/8 Inch* Designed...
    09-051100766
    SKU:
    09-051100766
    Rating:
    100000 LBS
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $428.99
    Qty in Cart: 0
    Price:
    $428.99
    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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