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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
  • Air Spring Rolling Lobe W/ Plastic Base Replaces K30322 For Kenworth

    Air Spring Rolling Lobe W/ Plastic Base Replaces K30322 For Kenworth

    AFTERMARKET

    $149.99
    9.00 Inch Diameter Air Spring Rolling LobeOptimize the suspension performance of your Kenworth truck with this high-quality Air Spring Rolling Lobe with Plastic Base, designed to replace K30322. With...
    02-05100003
    SKU:
    02-05100003
    Truck Class:
    Heavy Duty
    Material Options:
    Plastic/Poly
    Make:
    Kenworth
    Product Type:
    Frame & Chassis
    $149.99
    Qty in Cart: 0
    Price:
    $149.99
    Subtotal:
  • Flat Square Top U- Bolt Kit 3/4 In-16 X4 In X 6 In Grade 8 For Kenworth Front AG130

    Flat Square Top U- Bolt Kit 3/4 In-16 X4 In X 6 In Grade 8 For Kenworth Front AG130

    AFTERMARKET

    $72.99
    3/4 Inch Diameter Flat Square Bend U- Bolt KitReplace and reinforce suspension mounts with the Flat Square Top U-Bolt Kit - 3/4 In-16 x 4 In x 6 In. Crafted from Grade 8 steel, this U-bolt kit offers...
    02-05090016
    SKU:
    02-05090016
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Product Type:
    Frame & Chassis
    $72.99
    Qty in Cart: 0
    Price:
    $72.99
    Subtotal:
  • Drag Link 31 Inch C To C Replaces L24VU8432A11 For Kenworth T800

    Drag Link 31 Inch C To C Replaces L24VU8432A11 For Kenworth T800

    AFTERMARKET

    $272.99
    31 Inch C To C Drag Link Replaces L24VU8432A11, L24VU8432B11Restore accurate steering response on your Kenworth T800 with this 31-inch C to C Drag Link. Built with precision taper pins, 1.625-inch...
    02-05090013
    SKU:
    02-05090013
    Length Options:
    31 Inch
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Product Type:
    Frame & Chassis
    $272.99
    Qty in Cart: 0
    Price:
    $272.99
    Subtotal:
  • Drag Link 28.375 Inch C To C Replaces L24VU8006A11 For Kenworth T600

    Drag Link 28.375 Inch C To C Replaces L24VU8006A11 For Kenworth T600

    AFTERMARKET

    $274.99
    28.375 Inch C To C Drag Link Replaces L24VU8006A11, L24VU8006B11Restore accurate steering response on your Kenworth T600 with the 28.375-inch C to C Drag Link. With shaft diameter of 1.44 inches,...
    02-05090012
    SKU:
    02-05090012
    Length Options:
    28 Inch
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Product Type:
    Frame & Chassis
    $274.99
    Qty in Cart: 0
    Price:
    $274.99
    Subtotal:
  • 4 Leaf Parabolic Front Spring - K2231125, K2231125A For Kenworth

    4 Leaf Parabolic Front Spring - K2231125, K2231125A For Kenworth

    AUTOMANN USA

    $648.99
    4 Leaf Parabolic Front Spring Replaces K2231125, K2231125A* High Quality Parabolic Front Spring* Sold Individually* Warranty On Parabolic Front Springs Against Defects In Workmanship & Material From...
    02-05090005
    SKU:
    02-05090005
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Product Type:
    Frame & Chassis
    $648.99
    Qty in Cart: 0
    Price:
    $648.99
    Subtotal:
  • Air Spring Rolling Lobe - 9422, 1R11-028, 64255 For Kenworth

    Air Spring Rolling Lobe - 9422, 1R11-028, 64255 For Kenworth

    AFTERMARKET

    $117.99
    Kenworth Air Spring Rolling Lobe Replaces 9422, 1R11-028, 64255This Air Spring is engineered to meet OEM specifications, providing a smooth ride for both driver and cargo. Its features include...
    02-05100006
    SKU:
    02-05100006
    Truck Class:
    Heavy Duty
    Material Options:
    Plastic/Poly
    Make:
    Kenworth
    Product Type:
    Frame & Chassis
    $117.99
    Qty in Cart: 0
    Price:
    $117.99
    Subtotal:
  • Leaf Parabolic Steer Axle Spring 3 15/16 Inch Wide - B81-6067-001 For Kenworth T660 W/ AG130

    Leaf Parabolic Steer Axle Spring 3 15/16 Inch Wide - B81-6067-001 For Kenworth T660 W/ AG130

    AFTERMARKET

    $799.99
    Kenworth T660 Front Eye-Eye Leaf Spring* High Quality Parabolic Leaf Spring * Includes:  - 6 5/16 Inch Silent Block  - 5 7/16 Inch Silent Block* 100 Inch Width * 160 Arch* 3 15/16 Inch Wide* Front...
    02-05090015
    SKU:
    02-05090015
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Product Type:
    Frame & Chassis
    $799.99
    Qty in Cart: 0
    Price:
    $799.99
    Subtotal:
  • Drag Link 15.5 Inch C To C Replaces DS1280 For Kenworth W900B, W900L

    Drag Link 15.5 Inch C To C Replaces DS1280 For Kenworth W900B, W900L

    AFTERMARKET

    $181.99
    15.5 Inch C To C Drag Link Replaces DS1280, L24VU8036A11, L24VU8036A12, L24VU8036B11, L24VU8036B11L, L24VU8036C11, L24VU8036B11Keep your Kenworth W900B or W900L steering system operating safely with...
    02-05090011
    SKU:
    02-05090011
    Truck Class:
    Heavy Duty
    Length Options:
    15 1/2 Inch
    Material Options:
    Steel
    Make:
    Kenworth
    Product Type:
    Frame & Chassis
    $181.99
    Qty in Cart: 0
    Price:
    $181.99
    Subtotal:
  • On Sale
    Limited Quantity Available
    Grade C Lock Nut

    Grade C Lock Nut

    AUTOMANN USA

    $0.26 - $6.34
    Choose Option(s) to see description.Lock Nut 9/16 Inch -12 TPI Grade CGrade C Lock Nut With 9/16 Inch -12 Threads Replaces D85005002* High Quality Lock Nut* 0.86 Inch A/F* 0.47 Inch Height* Threads-...
    PPR_206104
    SKU:
    PPR_206104
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $0.26 - $6.34
    Qty in Cart: 0
    Price:
    $0.26 - $6.34
    Subtotal:
  • Center Beam Bushing 12 Inch - 22279, 22279-000 For Hendrickson

    Center Beam Bushing 12 Inch - 22279, 22279-000 For Hendrickson

    AFTERMARKET

    $231.99
    Center Beam Bushing 2 ID X 2 3/4 OD X 12 Inch W/ 3.5/8 OD Sleeve* High Quality Center Beam Bushing* Dimensions: - 2.0 Inch ID  - 2-3/4 Inch OD  - 12 Inch Length* Sleeve 3.5/8 Inch OD* Includes Plug-...
    29-05100111
    SKU:
    29-05100111
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Diameter Options:
    2 Inch
    Product Type:
    Frame & Chassis
    $231.99
    Qty in Cart: 0
    Price:
    $231.99
    Subtotal:
  • Shackle Side Bar 3.75 Inch - 1661966 For Blue Bird - 4 Inch Front Spring

    Shackle Side Bar 3.75 Inch - 1661966 For Blue Bird - 4 Inch Front Spring

    AUTOMANN USA

    $33.72
    3.75 Inch C To C Blue Bird Bus Side Bar Replaces 1661966* High Quality Side Bar* Dimensions: - 6.031 Inch Length - 2.25 Inch Width - 3.75 Inch C To C - 1.00 Inch Height/Thickness* Spring Pin Hole- 1...
    30-05090009
    SKU:
    30-05090009
    Truck Class:
    Heavy Duty
    Length Options:
    6 Inch
    Material Options:
    Steel
    Make:
    Bus
    Product Type:
    Frame & Chassis
    $33.72
    Qty in Cart: 0
    Price:
    $33.72
    Subtotal:
  • End Beam Bushing 5 3/4 Inch - 45900, 459004000, 459004000L For Hendrickson

    End Beam Bushing 5 3/4 Inch - 45900, 459004000, 459004000L For Hendrickson

    AFTERMARKET

    $87.99
    End Beam Bushing 2-1/2 ID x 4-3/4 OD x 5-3/4 Inch W/ 4-1/4in Sleeve* High Quality End Beam Bushing* Dimensions: - 2 1/2 Inch ID  - 4 3/4 Inch OD  - 5 3/4 Inch Length* 4 1/4 Inch Sleeve* Made In USA*...
    29-05100011
    SKU:
    29-05100011
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Diameter Options:
    2 1/2 Inch
    Product Type:
    Frame & Chassis
    $87.99
    Qty in Cart: 0
    Price:
    $87.99
    Subtotal:
  • Slider Block Assembly - S14264 For Hendrickson 2-1/2in Spring, 2-5/8in Block

    Slider Block Assembly - S14264 For Hendrickson 2-1/2in Spring, 2-5/8in Block

    AFTERMARKET

    $72.99
    Slider Block With Bolt & Nut Replaces E3777 And R303777* High Quality Slider Block* Consists Of  - (1) Slider Block - (1) 7/8 Inch Lock Nut  - (1) 7/8 Inch X 5-1/2 Inch Cap Screw * For 2 1/2 Inch...
    29-05200001
    SKU:
    29-05200001
    Length Options:
    2 1/2 Inch
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $72.99
    Qty in Cart: 0
    Price:
    $72.99
    Subtotal:
  • Cross Tube 1-1/8 -12 ID X 1.75 OD X 61.5 Inch - A3102H4532

    Cross Tube 1-1/8 -12 ID X 1.75 OD X 61.5 Inch - A3102H4532

    AFTERMARKET

    $329.99
    Cross Tube Replaces A3102H4532* High Quality Cross Tube* 61.5 Inch* 1.75 Inch OD* 1-1/8 Inch-12 ID* Made In USA* Sold Individually* Warranty On Cross Tubes Against Defects In Workmanship & Material...
    29-05090098
    SKU:
    29-05090098
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Length Options:
    61 1/2 Inch
    Product Type:
    Frame & Chassis
    $329.99
    Qty in Cart: 0
    Price:
    $329.99
    Subtotal:
  • Cross Tube Assembly 1-1/4 -12 X 1.075 OD X 68.6 Inch - A13102C4293

    Cross Tube Assembly 1-1/4 -12 X 1.075 OD X 68.6 Inch - A13102C4293

    AFTERMARKET

    $322.99
    68.6 Inch C To C Cross Tube Assembly Replaces A13102C4293* High Quality Cross Tube Assembly* Consists Of  - (1) Cross Tube - (1) Tie Rod End (Passenger Side)  - (1) Tie Rod End (Driver Side)* 1-1/4...
    29-05090091
    SKU:
    29-05090091
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Length Options:
    68 Inch
    Product Type:
    Frame & Chassis
    $322.99
    Qty in Cart: 0
    Price:
    $322.99
    Subtotal:
  • Cross Tube 1.75 OD X 55.37 Inch W/ 1-1/4 In-12 Ends - A3102T4544

    Cross Tube 1.75 OD X 55.37 Inch W/ 1-1/4 In-12 Ends - A3102T4544

    AFTERMARKET

    $186.99
    Cross Tube Replaces A3102T4544* High Quality Cross Tube* 1.75 Inch OD * 55.37 Inch Lg * With 1-1/4 Inch-12 Ends* Made In USA* Sold Individually* Warranty On Cross Tubes Against Defects In Workmanship...
    29-05090103
    SKU:
    29-05090103
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Length Options:
    55 Inch
    Product Type:
    Frame & Chassis
    $186.99
    Qty in Cart: 0
    Price:
    $186.99
    Subtotal:
  • BESTfit 1.125 ID X 4.25 Inch Poly Fifth Wheel Bushing

    BESTfit 1.125 ID X 4.25 Inch Poly Fifth Wheel Bushing

    BESTFIT TRUCK PARTS

    $20.01
    Poly Fifth Wheel Bushing Replaces D90, E7450, And R307450 By BESTfitThe BESTfit 1.125 ID X 4.25 Inch Poly Fifth Wheel Bushing delivers precision engineering and long-lasting durability. With a 4...
    29-05110002
    SKU:
    29-05110002
    Material Options:
    Plastic/Poly
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $20.01
    Qty in Cart: 0
    Price:
    $20.01
    Subtotal:
  • Beam Center Bushing 3.5 Sm OD X 12.00 Inch- 5919-000 For Hendrickson

    Beam Center Bushing 3.5 Sm OD X 12.00 Inch- 5919-000 For Hendrickson

    AFTERMARKET

    $330.99
    12 Inch Beam Center Bushing W/ 3.5 Small OD & 4.75 Large OD* High Quality Center Bushing* Dimensions: - 12.00 Inch Overall Length - 7.00 Inch C To C Length - 4.75 Inch Overall Diameter  - 3.50 Inch...
    29-05100041
    SKU:
    29-05100041
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Length Options:
    12 Inch
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $330.99
    Qty in Cart: 0
    Price:
    $330.99
    Subtotal:
  • Cross Tube 1-1/8 -12 ID X1.50 OD X 55.50 Inch - A3102S3451

    Cross Tube 1-1/8 -12 ID X1.50 OD X 55.50 Inch - A3102S3451

    AFTERMARKET

    $125.99
    55.50 Inch Cross Tube Replaces A3102S3451* High Quality Cross Tube* 55.50 Inch* 1.50 Inch OD* 1-1/8 Inch-12 ID* Made In USA* Sold Individually* Warranty On Cross Tubes Against Defects In Workmanship...
    29-05090097
    SKU:
    29-05090097
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Length Options:
    55 1/2 Inch
    Product Type:
    Frame & Chassis
    $125.99
    Qty in Cart: 0
    Price:
    $125.99
    Subtotal:
  • Cross Tube 1.90 Inch OD X 59.00 Inch , W/ 1- 1/4 In-12 ID - 818473

    Cross Tube 1.90 Inch OD X 59.00 Inch , W/ 1- 1/4 In-12 ID - 818473

    AFTERMARKET

    $196.99
    Cross Tube Replaces 818473* High Quality Cross Tube* 59.00 Inch* 1.90 Inch OD* 1- 1/4 Inch-12 ID* Made In USA* Sold Individually* Warranty On Cross Tubes Against Defects In Workmanship & Material...
    29-05090102
    SKU:
    29-05090102
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Length Options:
    59 Inch
    Product Type:
    Frame & Chassis
    $196.99
    Qty in Cart: 0
    Price:
    $196.99
    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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