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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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  • Price
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  • Merritt 84.25 X 30.25 Inch Flush Mount Deck Plate W/ Non Skid Deck Surface

    Merritt 84.25 X 30.25 Inch Flush Mount Deck Plate W/ Non Skid Deck Surface

    MERRITT

    $799.99
    84.25 X 30.25 Inch Deck Plate- Flush Mount By MerrittProtect your cargo and enhance truck bed functionality with the Merritt 84.25 X 30.25 Inch Flush Mount Deck Plate, featuring a non-skid ribbed...
    449
    SKU:
    449
    Location:
    Made In USA
    Truck Class:
    Heavy Duty
    Material Options:
    Aluminum
    Make:
    Universal Items
    Style Options:
    Flush Mount
    Length Options:
    84 Inch
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $799.99
    Qty in Cart: 0
    Price:
    $799.99
    Subtotal:
  • Leaf Spring Bushing Shim Washer 1 1/4 Inch ID

    Leaf Spring Bushing Shim Washer 1 1/4 Inch ID

    OPP - ORIGINAL PARTS PROGRAM

    $10.50
    Leaf Spring Bushing Shim Washer W/ 1 1/4 Inch I.D.* High Quality Shim Washer* 1-.25 Inch ID* Made In USA* Sold Individually* Warranty On Shim Washers Against Defects In Workmanship & Material From...
    29-051063
    SKU:
    29-051063
    Truck Class:
    Heavy Duty
    Product Type:
    Frame & Chassis
    $10.50
    Qty in Cart: 0
    Price:
    $10.50
    Subtotal:
  • BESTfit Square U Bolt Kit- 3/4 x 4 x 10 Inch

    BESTfit Square U Bolt Kit- 3/4 x 4 x 10 Inch

    BESTFIT TRUCK PARTS

    $26.53
    3/4 x 4 x 10 Inch Square Bend Top U-Bolt Kit By BESTfitSecure your truck's suspension and axle components with the BESTfit Square U-Bolt Kit, 3/4 x 4 x 10 Inch. This high-quality kit includes two...
    29-0509010
    SKU:
    29-0509010
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    Height Options:
    10 Inch
    $26.53
    Qty in Cart: 0
    Price:
    $26.53
    Subtotal:
  • Bulldog HD Front Shock Absorber For Steer Axle W/ 21.34 Inch Extended Length For Peterbilt and Kenworth

    Bulldog HD Front Shock Absorber For Steer Axle W/ 21.34 Inch Extended Length For Peterbilt and Kenworth

    BULLDOG HD SHOCKS

    $71.99
    Heavy-Duty Shock AbsorberFind premium shock replacements for your truck at 4 State Trucks. We carry these front Bulldog Heavy Duty Shocks, reengineered to last longer and perform better than the part...
    29-0500002
    SKU:
    29-0500002
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Peterbilt
    Make:
    Kenworth
    Product Type:
    Frame & Chassis
    $71.99
    Qty in Cart: 0
    Price:
    $71.99
    Subtotal:
  • Bulldog HD Cab Shock Absorber Replaces 12021065 12021164 R711005 For Kenworth

    Bulldog HD Cab Shock Absorber Replaces 12021065 12021164 R711005 For Kenworth

    BULLDOG HD SHOCKS

    $55.99
    Bulldog Heavy Duty Cab Shock AbsorberBulldog HD Cab Shock Absorbers is a premium replacement part, isolating the cab from the frame to prevent road induced noise, vibration and harshness from...
    29-0500001
    SKU:
    29-0500001
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Kenworth
    Product Type:
    Frame & Chassis
    $55.99
    Qty in Cart: 0
    Price:
    $55.99
    Subtotal:
  • JOST Air Release Fifth Wheel Top Plate

    JOST Air Release Fifth Wheel Top Plate

    OPP - ORIGINAL PARTS PROGRAM

    $3,335.99
    Jost Fifth Wheel Top Plate - Low LubeTired of the hassle of lubricating your fifth wheel? Check out the JOST Greaseless 5th Wheel Top Plate. This top plate reduces maintenance time and keeps your...
    09-05110264
    SKU:
    09-05110264
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $3,335.99
    Qty in Cart: 0
    Price:
    $3,335.99
    Subtotal:
  • 5th Wheel Assembly W/ 24 Inch Travel Base BLH7AWB975024

    5th Wheel Assembly W/ 24 Inch Travel Base BLH7AWB975024

    OPP - ORIGINAL PARTS PROGRAM

    $5,750.99
    5th Wheel Assembly W/ 9-3/4 Inch Legs And 24 Inch Travel Base* High Quality Wheel Assembly * With 9.75 Inch Legs * 24 Inch Travel Base* Made In USA* Sold Individually* Warranty On Wheel Assembly...
    09-05110251
    SKU:
    09-05110251
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $5,750.99
    Qty in Cart: 0
    Price:
    $5,750.99
    Subtotal:
  • Holland 9 Inch Riser W/ FW35 Holland And Mounting Kit

    Holland 9 Inch Riser W/ FW35 Holland And Mounting Kit

    OPP - ORIGINAL PARTS PROGRAM

    $5,082.99
    9 Inch Riser With FW35 Holland 5th Wheel* High Quality Riser* 9 Inch* With Mounting Kit* With Fw35 Holland 5Th Wheel* Made In USA* Sold Individually* Warranty On Risers Against Defects In Workmanship...
    09-05110238
    SKU:
    09-05110238
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $5,082.99
    Qty in Cart: 0
    Price:
    $5,082.99
    Subtotal:
  • Black Forged Steel Receiver Mount Tow Eye For 2 Inch Receiver Tube

    Black Forged Steel Receiver Mount Tow Eye For 2 Inch Receiver Tube

    BUYERS PRODUCTS

    $43.12
    Receiver Mount Tow Eye* High Quality Receiver Mount Tow Eye* Forged Steel* Black Powder-Coated Finish* Handles Straight-Line Towing Up To 12000 Lb.* The Eye Fits Into Any Front Or Rear Mounted 2 Inch...
    09-051100917
    SKU:
    09-051100917
    Rating:
    12000 LBS
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $43.12
    Qty in Cart: 0
    Price:
    $43.12
    Subtotal:
  • FREE SHIPPING OVER $249
    Road Armor Steel 7/8 Inch Classic Shackle

    Road Armor Steel 7/8 Inch Classic Shackle

    ROAD ARMOR

    $184.99
    Textured Black Finish Steel Classic Shackle* High Quality Shackle* Steel* Textured Black Powder Coated Finish* Are Some Of The Toughest Hooks On The Market* Made In USA* Sold Individually* Warranty...
    09-051100903
    SKU:
    09-051100903
    Truck Class:
    Light Duty
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $184.99
    Qty in Cart: 0
    Price:
    $184.99
    Subtotal:
  • 5th Wheel Assembly With 9 Inch Legs & 36 Inch Outboard Slide Replaces FW35, A936XL00

    5th Wheel Assembly With 9 Inch Legs & 36 Inch Outboard Slide Replaces FW35, A936XL00

    OPP - ORIGINAL PARTS PROGRAM

    $4,186.99
    5Th Wheel Assembly W/ 9 Inch LegsBring superior hauling power to your truck with this heavy-duty 5th Wheel Assembly. Featuring 9-inch legs and a 36-inch outboard slide, it's made in the USA for...
    09-05110250
    SKU:
    09-05110250
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $4,186.99
    Qty in Cart: 0
    Price:
    $4,186.99
    Subtotal:
  • 10 Safety Chain Hanger - MGTW 90,000 Lbs

    10 Safety Chain Hanger - MGTW 90,000 Lbs

    PREMIER

    $188.99
    Safety Chain Hanger* High Quality Safety Chain Hanger* 9-3/16 Inch Overall Length * 5-1/2 Inch Width* 3-5/16 Inch Height* 3-1/16 Inch Diameter * MGTW 90000 Lbs* Made In USA* Sold Individually*...
    09-051100899
    SKU:
    09-051100899
    Truck Class:
    Universal
    Rating:
    90000 LBS
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $188.99
    Qty in Cart: 0
    Price:
    $188.99
    Subtotal:
  • Holland Fifth Wheel Handle Release Lever RK071511

    Holland Fifth Wheel Handle Release Lever RK071511

    OPP - ORIGINAL PARTS PROGRAM

    $128.99
    Handle Release LeverThe Holland Fifth Wheel Handle Release Lever makes connecting and disconnecting semi-trailers a breeze. Its durable design and smooth operation ensure a secure connection,...
    09-05110260
    SKU:
    09-05110260
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $128.99
    Qty in Cart: 0
    Price:
    $128.99
    Subtotal:
  • FREE SHIPPING OVER $249
    271 Thimble Pushrod, 7/8 X 2 1/8 Inch

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

    PREMIER

    $30.27
    Thimble Pushrod* High Quality Thimble Pushrod* 7/8 Inch X 2-1/8 Inch Length* Used On The End Of The Pushrod Of An Air Chamber That Contacts The Slack Adjustment Shoe In Air Take Up Couplings* Made In...
    09-051100879
    SKU:
    09-051100879
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $30.27
    Qty in Cart: 0
    Price:
    $30.27
    Subtotal:
  • FREE SHIPPING OVER $249
    271 Standard Thimble Pushrod, 7/8 X 3/4 Inch

    271 Standard Thimble Pushrod, 7/8 X 3/4 Inch

    PREMIER

    $21.31
    Standard Thimble Pushrod* High Quality Standard Thimble Pushrod* 7/8 Inch X 2-3/4 Inch Length* Used On The End Of The Pushrod Of An Air Chamber That Contacts The Slack Adjustment Shoe In Air Take Up...
    09-051100875
    SKU:
    09-051100875
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $21.31
    Qty in Cart: 0
    Price:
    $21.31
    Subtotal:
  • Steel Receiver Mounted Tow Hook For 2 Inch Receiver Tube

    Steel Receiver Mounted Tow Hook For 2 Inch Receiver Tube

    BUYERS PRODUCTS

    $29.14
    RM10H Tow Hook* High Quality Receiver Mounted Tow Hook* Carbon Steel* Black Powder-Coated Finish* Handles Recovery Towing And Is Rated To 10000 Lb. * Fits Into Any Front Or Rear Mounted 2 Inch...
    09-051100916
    SKU:
    09-051100916
    Truck Class:
    Universal
    Rating:
    10000 LBS
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $29.14
    Qty in Cart: 0
    Price:
    $29.14
    Subtotal:
  • 267F Non Standard Air Chamber Bracket, 4 5/8 Inch For 270, 2200 Saf-Tite 100 And 820 Slack Reducing Couplings

    267F Non Standard Air Chamber Bracket, 4 5/8 Inch For 270, 2200 Saf-Tite 100 And 820 Slack Reducing Couplings

    PREMIER

    $118.99
    Non- Standard Air Chamber Bracket* High Quality Non- Standard Air Chamber Bracket* 4-5/8 Inch Overall Length* For Use With 270/2200 Saf-Tite 100 And 820 Slack Reducing Couplings* Made In USA* Sold...
    09-051100871
    SKU:
    09-051100871
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $118.99
    Qty in Cart: 0
    Price:
    $118.99
    Subtotal:
  • Holland 5th Wheel Bracket Pin And Bushing Kit

    Holland 5th Wheel Bracket Pin And Bushing Kit

    OPP - ORIGINAL PARTS PROGRAM

    $99.99
    Replacement Bracket Cushion And Pin Kit RK10605* High Quality Bracket Pin And Bushing Kit* Sold Individually* Warranty On Bracket Pin And Bushing Kits Against Defects In Workmanship & Material From...
    09-05110224
    SKU:
    09-05110224
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $99.99
    Qty in Cart: 0
    Price:
    $99.99
    Subtotal:
  • Type 30 Air Chamber W/ 8 Inch Pushrod

    Type 30 Air Chamber W/ 8 Inch Pushrod

    PREMIER

    $149.99
    Type 30 Air Chamber For Pintle Hook & Drawbar Eye Applications* High Quality Air Chamber* 8 Inch Pushrod* Type 30 * Maximum Force At 100 PSI / 3000 Lbs* For Pintle Hook And Drawbar Eye Applications*...
    09-051100867
    SKU:
    09-051100867
    Truck Class:
    Universal
    Length Options:
    8 Inch
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $149.99
    Qty in Cart: 0
    Price:
    $149.99
    Subtotal:
  • 9 Safety Chain Hanger - MGTW 30,000 Lbs

    9 Safety Chain Hanger - MGTW 30,000 Lbs

    PREMIER

    $72.99
    Safety Chain Hanger* High Quality Safety Chain Hanger* 5-1/2 Overall Length* 2 Inch Width* 3-1/2 Inch Height* 2-1/16 Inch Diameter* MGTW 30000 Lbs* Made In USA* Sold Individually* Warranty On Safety...
    09-051100898
    SKU:
    09-051100898
    Rating:
    30000 LBS
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $72.99
    Qty in Cart: 0
    Price:
    $72.99
    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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