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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
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  • FREE SHIPPING OVER $249
    Aluminum Side Bar 6.313 Inch W/ 1 Inch Pin Hole Replaces B20-1002 & B20-1008 For Kenworth

    Aluminum Side Bar 6.313 Inch W/ 1 Inch Pin Hole Replaces B20-1002 & B20-1008 For Kenworth

    AUTOMANN USA

    $132.99
    5 Inch C-C X 1.25 Inch Aluminum Side Bar Fits Kenworth K100, T2000, T300, T600, T800 & W900* High Quality Side Bar* Aluminum* 6.313 Inch Overall Length* 5 Inch Center To Center* 1.88 Inch Wide* 1.25...
    02-05091006
    SKU:
    02-05091006
    Width Options:
    1 Inch
    Length Options:
    6 Inch
    Truck Class:
    Heavy Duty
    Material Options:
    Aluminum
    Make:
    Kenworth
    Product Type:
    Frame & Chassis
    $132.99
    Qty in Cart: 0
    Price:
    $132.99
    Subtotal:
  • Steel Spring Shackle Side Bar 6.313 Inch Replaces K029-75 & K209-36 For Kenworth

    Steel Spring Shackle Side Bar 6.313 Inch Replaces K029-75 & K209-36 For Kenworth

    AFTERMARKET

    $38.23
    Steel Side Bar Fits Kenworth K100, T2000, T300, T600, T800 & W900 - Replaces K209-83* High Quality Side Bar* Steel* 6.313 Inch Overall Length* 4 Inch Center To Center* 1.75 Inch Width* 1.5 Inch...
    02-05091005
    SKU:
    02-05091005
    Width Options:
    1 Inch
    Length Options:
    6 Inch
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Kenworth
    Product Type:
    Frame & Chassis
    $38.23
    Qty in Cart: 0
    Price:
    $38.23
    Subtotal:
  • Aluminum Side Bar With 1.25 Inch Pin Holes Replaces 1918AA & P162-563 For Kenworth T300

    Aluminum Side Bar With 1.25 Inch Pin Holes Replaces 1918AA & P162-563 For Kenworth T300

    AFTERMARKET

    $66.99
    3.53 Inch Center To Center X 2 Inch Wide Aluminum Side Bar Fits Kenworth T300The Aluminum Side Bar is a high-quality replacement for your Kenworth T300, designed for strength and reliability. With 1...
    02-05091004
    SKU:
    02-05091004
    Width Options:
    2 Inch
    Length Options:
    5 Inch
    Truck Class:
    Heavy Duty
    Material Options:
    Aluminum
    Make:
    Kenworth
    Product Type:
    Frame & Chassis
    $66.99
    Qty in Cart: 0
    Price:
    $66.99
    Subtotal:
  • Steel Side Bar - 1918AA, P162-563 For Kenworth T300 - 1993 to 2008

    Steel Side Bar - 1918AA, P162-563 For Kenworth T300 - 1993 to 2008

    AFTERMARKET

    $54.99
    3.53 Inch Center To Center X 2 Inch Wide Steel Side Bar Fits Kenworth T300* High Quality Side Bar* Steel* 5.92 Inch Overall Length* 3.53 Inch Center To Center* 2 Inch Wide* 1.25 Inch Pin Hole* Sold...
    02-05091003
    SKU:
    02-05091003
    Width Options:
    2 Inch
    Length Options:
    5 Inch
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Kenworth
    Product Type:
    Frame & Chassis
    $54.99
    Qty in Cart: 0
    Price:
    $54.99
    Subtotal:
  • FREE SHIPPING OVER $249
    BESTfit 186MM OAL X 27MM OD M33.5-4 Threaded Spring Pin Replaces B65-1002 For Kenworth T2000

    BESTfit 186MM OAL X 27MM OD M33.5-4 Threaded Spring Pin Replaces B65-1002 For Kenworth T2000

    BESTFIT TRUCK PARTS

    $21.03
    BESTfit 146MM Center To Center Threaded Spring Pin Fits Kenworth T2000 1996-2000Keep your Kenworth T2000's suspension aligned and performing at its peak with this BESTfit Threaded Spring Pin...
    02-05091002
    SKU:
    02-05091002
    Truck Class:
    Heavy Duty
    Length Options:
    7 Inch
    Size Options:
    27 mm
    Make:
    Kenworth
    Product Type:
    Frame & Chassis
    $21.03
    Qty in Cart: 0
    Price:
    $21.03
    Subtotal:
  • FREE SHIPPING OVER $249
    BESTfit 7.375 Inch OAL X 1.063 Inch OD Threaded Spring Pin Replaces 5296 For Kenworth

    BESTfit 7.375 Inch OAL X 1.063 Inch OD Threaded Spring Pin Replaces 5296 For Kenworth

    BESTFIT TRUCK PARTS

    $24.28
    BESTfit 5.75 Inch Center To Center 1.375 Inch 6 Thread Spring Pin Fits Kenworth K100, K300, T300-T800 & W900Keep your Kenworth suspension and linkage assemblies performing optimally with this...
    02-05091001
    SKU:
    02-05091001
    Length Options:
    7 Inch
    Truck Class:
    Heavy Duty
    Diameter Options:
    1 Inch
    Make:
    Kenworth
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $24.28
    Qty in Cart: 0
    Price:
    $24.28
    Subtotal:
  • FREE SHIPPING OVER $249
    Rear of Front Spring Hanger Replaces K056-595 & K056-596 For Kenworth T300 1993-2008

    Rear of Front Spring Hanger Replaces K056-595 & K056-596 For Kenworth T300 1993-2008

    AUTOMANN USA

    $148.99
    Aluminum Rear Of Front Suspension Hanger Fits Kenworth T300Ensure your Kenworth T300 suspension performs at its best with this high quality rear of front spring hanger, designed for model years...
    02-05091000
    SKU:
    02-05091000
    Truck Class:
    Heavy Duty
    Material Options:
    Aluminum
    Make:
    Kenworth
    Product Type:
    Frame & Chassis
    $148.99
    Qty in Cart: 0
    Price:
    $148.99
    Subtotal:
  • Spring Shackle Replaces K056474, K056508, K056598, K056615, E870 For Kenworth

    Spring Shackle Replaces K056474, K056508, K056598, K056615, E870 For Kenworth

    AFTERMARKET

    $208.99
    Front Or Rear Spring Shackle Fits KenworthRestore proper suspension function on your Kenworth with this premium Spring Shackle, a direct OE replacement for K056474, K056508, K056598, K056615, and...
    02-050909
    SKU:
    02-050909
    Truck Class:
    Heavy Duty
    Material Options:
    Plastic/Poly
    Make:
    Kenworth
    Product Type:
    Frame & Chassis
    $208.99
    Qty in Cart: 0
    Price:
    $208.99
    Subtotal:
  • Steer Leaf Spring Bushing Conversion Kit For Kenworth T600 T800 T300 T450

    Steer Leaf Spring Bushing Conversion Kit For Kenworth T600 T800 T300 T450

    AUTOMANN USA

    $264.99
    Suspension Spring Bushing Conversion KitIncrease the longevity and performance of your Kenworth T600, T800, T300, or T450 steer leaf springs with the Steer Leaf Spring Bushing Conversion Kit. This...
    02-050908
    SKU:
    02-050908
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $264.99
    Qty in Cart: 0
    Price:
    $264.99
    Subtotal:
  • On Sale
    Limited Quantity Available
    Front 3 Leaf Parabolic Spring 4 Inch Wide - HK1073-104 For Kenworth

    Front 3 Leaf Parabolic Spring 4 Inch Wide - HK1073-104 For Kenworth

    AUTOMANN USA

    Now: $257.32
    Was: $508.99
    Leaf Parabolic Front Spring - 3 Leaves* High Quality Parabolic Spring* 3 Leaf Stack* 4 Inches Wide* 5.000 Inch Arch* 32.000 Inch Inch Short End Of Spring* 32.000 Inch Long End Of Spring* Includes 1...
    02-050907
    SKU:
    02-050907
    Truck Class:
    Heavy Duty
    Width Options:
    4 Inch
    Length Options:
    64 Inch
    Make:
    Kenworth
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    Now: $257.32
    Was: $508.99
    Qty in Cart: 0
    Price:
    Now: $257.32
    Was: $508.99
    Subtotal:
  • 2 Leaf Parabolic Front Spring Replaces HK48110-1440 For Kenworth

    2 Leaf Parabolic Front Spring Replaces HK48110-1440 For Kenworth

    AUTOMANN USA

    $547.99
    2 Leaf Parabolic Front Spring Fits KenworthEnhance the front suspension performance of your Kenworth truck with the 2 Leaf Parabolic Front Spring. This high-quality parabolic spring features a 2-leaf...
    02-050906
    SKU:
    02-050906
    Length Options:
    64 Inch
    Width Options:
    4 Inch
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Product Type:
    Frame & Chassis
    $547.99
    Qty in Cart: 0
    Price:
    $547.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Shock Upper Mounting Stud For Kenworth

    Shock Upper Mounting Stud For Kenworth

    AUTOMANN USA

    $54.99
    Upper Mounting Bracket Stud For Shock Fits KenworthImprove shock stability on your Kenworth truck with the High-Quality Shock Upper Mounting Stud, built for precise installation and heavy-duty...
    02-050905
    SKU:
    02-050905
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $54.99
    Qty in Cart: 0
    Price:
    $54.99
    Subtotal:
  • Drag Link 22.5 Inch C To C Replaces L20V48124A11 For Kenworth T300, T450

    Drag Link 22.5 Inch C To C Replaces L20V48124A11 For Kenworth T300, T450

    AFTERMARKET

    $280.99
    22.5 Inch C To C Drag Link Fits Kenworth T300, T450 Replaces L20V48124A11* High Quality Drag Link* 22.5 Inch Center To Center* Sold Individually* Warranty On Drag Link Against Defects In Workmanship...
    02-0509001
    SKU:
    02-0509001
    Length Options:
    22 Inch
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $280.99
    Qty in Cart: 0
    Price:
    $280.99
    Subtotal:
  • 2 Leaf Parabolic Steer Axle Spring - HK48110-3210 For Kenworth T300, T450, T600, T2000

    2 Leaf Parabolic Steer Axle Spring - HK48110-3210 For Kenworth T300, T450, T600, T2000

    AUTOMANN USA

    $729.99
    2 Leaf Parabolic Steer Axle Spring Fits Kenworth T300, T450, T600, T2000* High Quality Steer Axle Spring* 2 Leaf Parabolic* Sold Individually* Warranty On Steer Axle Springs Against Defects In...
    02-050900008
    SKU:
    02-050900008
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Kenworth
    Product Type:
    Frame & Chassis
    $729.99
    Qty in Cart: 0
    Price:
    $729.99
    Subtotal:
  • Drag Link 21.25 Inch C To C - L24VU8010B11 For Kenworth Cabover

    Drag Link 21.25 Inch C To C - L24VU8010B11 For Kenworth Cabover

    AFTERMARKET

    $263.99
    21.25 Inch C-C X 1.447 Inch Diameter Drag Link Fits Kenworth Cabover - Replaces L24VU8010B11* High Quality Drag Link* 21.25 Inch Length Center To Center * 1.447 Inch Bar Diameter* Sold Individually*...
    02-050900007
    SKU:
    02-050900007
    Length Options:
    21 Inch
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Product Type:
    Frame & Chassis
    $263.99
    Qty in Cart: 0
    Price:
    $263.99
    Subtotal:
  • Drag Link 28.25 Inch C To C - K162-536, E8732, FDL1454, DS1454 For Kenworth T800

    Drag Link 28.25 Inch C To C - K162-536, E8732, FDL1454, DS1454 For Kenworth T800

    AUTOMANN USA

    $321.99
    Drag Link Fits Kenworth T800 - Replaces L24VT7035A11, L24VT8001A11 & L24VT8001C11* High Quality Drag Link* 28.25 Inch Center To Center* 7/8 Inch - 14 * 1-S* Sold Individually* Warranty On Drag Links...
    02-050900006
    SKU:
    02-050900006
    Length Options:
    28 Inch
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Product Type:
    Frame & Chassis
    $321.99
    Qty in Cart: 0
    Price:
    $321.99
    Subtotal:
  • 3 Leaf Parabolic Front Spring 4 Inch Wide - K223-730 For Kenworth K100C, K100 Cabover

    3 Leaf Parabolic Front Spring 4 Inch Wide - K223-730 For Kenworth K100C, K100 Cabover

    AUTOMANN USA

    $587.99
    Parabolic Front 3 Leaf Spring Fits Kenworth K100C & K100 Cabover* High Quality 3 Leaf Parabolic Spring* 4 Inch Width* 3 Leaf* 6.5 Inch Arch* 6100 Capacity* Eye Type Standard* Bushing Ends TB68,...
    02-050900005
    SKU:
    02-050900005
    Truck Class:
    Heavy Duty
    Width Options:
    4 Inch
    Make:
    Kenworth
    Product Type:
    Frame & Chassis
    $587.99
    Qty in Cart: 0
    Price:
    $587.99
    Subtotal:
  • Driver Side Rear Steer Axle Rear Spring Hanger Replaces K056-505 For Kenworth W900B

    Driver Side Rear Steer Axle Rear Spring Hanger Replaces K056-505 For Kenworth W900B

    AUTOMANN USA

    $506.99
    Rear Spring Hanger For Kenworth W900B Driver Side Rear Steer AxleOptimize your Kenworth W900B's rear suspension performance with this Driver Side Rear Steer Axle Rear Spring Hanger. Built for the...
    02-050900004
    SKU:
    02-050900004
    Position:
    Driver Side
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Product Type:
    Frame & Chassis
    $506.99
    Qty in Cart: 0
    Price:
    $506.99
    Subtotal:
  • BESTfit 2 Leaf Parabolic Front Spring 4 Inch Wide For Kenworth K100C, T300-T450, T600, T600B, T600 Aerocab, T800, T800 Curved Glass

    BESTfit 2 Leaf Parabolic Front Spring 4 Inch Wide For Kenworth K100C, T300-T450, T600, T600B, T600 Aerocab, T800, T800 Curved Glass

    BESTFIT TRUCK PARTS

    $557.99
    BESTfit 6,000 Lb. Capacity 4 Inch Wide 2 Leaf Parabolic SpringMaintain optimal suspension performance with the BESTfit 2 Leaf Parabolic Front Spring 4 Inch Wide, designed for a wide range of Kenworth...
    02-050900003
    SKU:
    02-050900003
    Truck Class:
    Heavy Duty
    Width Options:
    4 Inch
    Length Options:
    59 Inch
    Make:
    Kenworth
    Product Type:
    Frame & Chassis
    $557.99
    Qty in Cart: 0
    Price:
    $557.99
    Subtotal:
  • Drag Link 30.56 Inch C To C - K162-363, K162-494, L24VT7033A11 For Kenworth W900B

    Drag Link 30.56 Inch C To C - K162-363, K162-494, L24VT7033A11 For Kenworth W900B

    AUTOMANN USA

    $295.99
    1.811 Inch Diameter Male Drag Link With 1.25 Inch 12 Thread Shaft* High Quality Drag Link * Features: - C To C - 30.560 Inches- C to E or E To E - 26.125 Inches- Shaft Diameter (A) - 1.811 Inches-...
    02-050900002
    SKU:
    02-050900002
    Truck Class:
    Heavy Duty
    Length Options:
    30 Inch
    Make:
    Kenworth
    Product Type:
    Frame & Chassis
    $295.99
    Qty in Cart: 0
    Price:
    $295.99
    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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