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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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  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • BESTfit Side Bar 5.063 Inch W/ 1/2In Offset - K20954 For Kenworth - 4 Inch Wide Spring

    BESTfit Side Bar 5.063 Inch W/ 1/2In Offset - K20954 For Kenworth - 4 Inch Wide Spring

    BESTFIT TRUCK PARTS

    $34.85
    BESTfit 5.063 Inch C To C Side Bar W/ 1/2 Inch Offset Replaces K20955, K20954, K20984* High Quality Side Bar* Dimensions:  - 7.50 Inch Length - 2.00 Inch Width - 5.063 Inch C To C - 1.125 Inch...
    02-05090004
    SKU:
    02-05090004
    Truck Class:
    Heavy Duty
    Material Options:
    Aluminum
    Make:
    Kenworth
    Product Type:
    Frame & Chassis
    $34.85
    Qty in Cart: 0
    Price:
    $34.85
    Subtotal:
  • Front Shackle Side Bar 6.9 Inch W/ 3/4 Inch Offset - B201004 For Kenworth W900L

    Front Shackle Side Bar 6.9 Inch W/ 3/4 Inch Offset - B201004 For Kenworth W900L

    AFTERMARKET

    $130.99
    Kenworth W900L 6.9 Inch C To C Front Shackle Side Bar W/ 3/4 Inch Offset Replaces B201004* High Quality Side Bar* Dimensions: - 6.9 Inch C To C - 1.060 Inch ID  - 1-1/4 Inch Thickness  - 1-3/4 Inch...
    02-05090017
    SKU:
    02-05090017
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Kenworth
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $130.99
    Qty in Cart: 0
    Price:
    $130.99
    Subtotal:
  • Shackle Side Bar Rear Of Front Type 5, 4 Inch Replaces K20959, K20961 For Kenworth

    Shackle Side Bar Rear Of Front Type 5, 4 Inch Replaces K20959, K20961 For Kenworth

    AUTOMANN USA

    $57.99
    4 Inch C To C Rear of Front Kenworth Side Bar Replaces K20981, K20989, K2098, K20982, K20987Ensure your Kenworth suspension system maintains optimal stability with the Shackle Side Bar Rear of Front...
    02-05090008
    SKU:
    02-05090008
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Length Options:
    4 Inch
    Make:
    Kenworth
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $57.99
    Qty in Cart: 0
    Price:
    $57.99
    Subtotal:
  • Stabilizer Bushing 54 ID X 78 OD X 70 MM For Kenworth

    Stabilizer Bushing 54 ID X 78 OD X 70 MM For Kenworth

    BESTFIT TRUCK PARTS

    $26.89
    Kenworth 70 MM Stabilizer Bushing Replaces E-10302, R3010302* High Quality Stabilizer Bushing* Dimensions - 54 Mm ID - 78 Mm OD - 70 Mm Length* Sold Individually* Warranty On Stabilizer Bushings...
    02-05100002
    SKU:
    02-05100002
    Material Options:
    Plastic/Poly
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Product Type:
    Frame & Chassis
    $26.89
    Qty in Cart: 0
    Price:
    $26.89
    Subtotal:
  • BESTFit Center Bolt 1/2 In-20 Thread - 7/16 Inch Head

    BESTFit Center Bolt 1/2 In-20 Thread - 7/16 Inch Head

    BESTFIT TRUCK PARTS

    $3.45 - $42.03
    Secure your suspension and maintain precise alignment with the BESTFit Center Bolt 1/2 In-20 Thread - 7/16 Inch Head, available in multiple lengths including 4-inch, 8-inch, 10-inch, and 12-inch...
    PPR_206116
    SKU:
    PPR_206116
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    Length Options:
    10 Inch
    Ready To Ship:
    Yes
    $3.45 - $42.03
    Qty in Cart: 0
    Price:
    $3.45 - $42.03
    Subtotal:
  • Brake Shoe Rivets W/ 0.5 Inch Head

    Brake Shoe Rivets W/ 0.5 Inch Head

    AUTOMANN USA

    $76.99 - $199.99
    Choose Option(s) to see description.0.563 Inch Steel Brake Shoe Rivets - RV3109SSteel Brake Lining Shoe Rivets Replaces OE RV3109S* High Quality Brake Shoe Rivet* Steel* Dimensions: - 0.563 Inch...
    PPR_206134
    SKU:
    PPR_206134
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $76.99 - $199.99
    Qty in Cart: 0
    Price:
    $76.99 - $199.99
    Subtotal:
  • 3/16 Cotter Pin

    3/16 Cotter Pin

    AUTOMANN USA

    $0.44 - $1.13
    Choose Option(s) to see description.Cotter Pin 3/16 X 3 Inch - 17800001 For HendricksonCotter Pin 3/16 X 3 Inch Replaces 17800001* High Quality Cotter Pin* 3/16 Inch X 3 Inch* Sold Individually*...
    PPR_206095
    SKU:
    PPR_206095
    Truck Class:
    Universal
    Material Options:
    Aluminum
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $0.44 - $1.13
    Qty in Cart: 0
    Price:
    $0.44 - $1.13
    Subtotal:
  • Spring Equalizer Hex Bolt 1.0in -14 x 6-1/2 Inch Grade 8 For Chevrolet, GM

    Spring Equalizer Hex Bolt 1.0in -14 x 6-1/2 Inch Grade 8 For Chevrolet, GM

    AUTOMANN USA

    $12.71
    Grade 8 Hex Spring Bolt W/ Fine Pitch Replaces FSP00503028, 3822130, 70002002, And ST1004* High Quality Spring Bolt * Dimensions: - 1 Inch Bolt Diameter - 6-1/2 Inch Bolt Length* Bolt Type- Hex...
    29-05250014
    SKU:
    29-05250014
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $12.71
    Qty in Cart: 0
    Price:
    $12.71
    Subtotal:
  • Flange Bolt 5/16 - 18 X 1/2 Inch Grade 8

    Flange Bolt 5/16 - 18 X 1/2 Inch Grade 8

    AUTOMANN USA

    $1.15
    Grade 8 Flange Bolt Replaces 3512558C1, W300602* High Quality Flange Bolt* 5/16 Inch X 1/2 Inch * Sold Individually * Warranty On Flange Bolts Against Defects In Workmanship & Material From Date Of...
    29-05250010
    SKU:
    29-05250010
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $1.15
    Qty in Cart: 0
    Price:
    $1.15
    Subtotal:
  • V-Rod Rebush Kit - SRK645 For Neway

    V-Rod Rebush Kit - SRK645 For Neway

    AFTERMARKET

    $242.99
    V-Rod Rebush Kit Replaces 48100511 And SRK645* High Quality V-ROD Rebush Kit* Consists Of  - (2) Torque ROD Bushing - (1) Apex Bushing.  - (2) Spacer Washer - (2) U Bolt Washers - (1) Lock Nut  - (1)...
    29-05100169
    SKU:
    29-05100169
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Product Type:
    Frame & Chassis
    $242.99
    Qty in Cart: 0
    Price:
    $242.99
    Subtotal:
  • Hex Head Flange Bolt 5/8-18 X 1-1/2 Inch Grade 8

    Hex Head Flange Bolt 5/8-18 X 1-1/2 Inch Grade 8

    AUTOMANN USA

    $2.31
    Grade 8 Hex Head Flange Bolt W/ Fine Pitch Replaces 23-11015-150 And 414076C1* High Quality Flange Bolt* Dimensions: - 5/8 Inch Bolt Diameter - 1-1/2 Inch Bolt Length* Bolt Type- Flanged Bolt*...
    29-05250009
    SKU:
    29-05250009
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $2.31
    Qty in Cart: 0
    Price:
    $2.31
    Subtotal:
  • Shackle Pin - Double Lock Bolt Slotted - 43146000 For Kenworth

    Shackle Pin - Double Lock Bolt Slotted - 43146000 For Kenworth

    AUTOMANN USA

    $13.28
    5.375 Inch C To C Double Lock Bolt Slotted Shackle Pin* High Quality Shackle Pin* Dimensions: - 1.375 Inch Diameter - 6.875 Inch Length - 5.375 Inch C To C* Double Lock Bolt Slotted Pin* Sold...
    29-05100164
    SKU:
    29-05100164
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Length Options:
    6 3/4 Inch
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $13.28
    Qty in Cart: 0
    Price:
    $13.28
    Subtotal:
  • Poly Torque Arm Service Repair Kit - LWSL1100, SL11LW For Watson & Chalin

    Poly Torque Arm Service Repair Kit - LWSL1100, SL11LW For Watson & Chalin

    AFTERMARKET

    $398.99
    Poly Service Repair Kit Replaces LWSL1100, SL11LW* High Quality Service Repair Kit* Consists Of  - (4) Torque Arm - (2) Axle Connect Bushing - (2) Pivot Bushing - (8) U-Bolt Washer - (2) Spring...
    29-05100150
    SKU:
    29-05100150
    Material Options:
    Plastic/Poly
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $398.99
    Qty in Cart: 0
    Price:
    $398.99
    Subtotal:
  • Pivot Connection Alignment Kit For Holland Neway

    Pivot Connection Alignment Kit For Holland Neway

    AFTERMARKET

    $120.99
    Pivot Connection Alignment Kit Replaces E4429, R304429, 48100194, And SRK139A* High Quality Pivot Connection Kit* Consists Of  - (2) Cap Screw - (2) 1 1/8 Inch Lock Nut - (4) Spacer Washer - (2)...
    29-05100115
    SKU:
    29-05100115
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Product Type:
    Frame & Chassis
    $120.99
    Qty in Cart: 0
    Price:
    $120.99
    Subtotal:
  • BESTfit Grease Seal 3-7/16 ID x 4-3/4 OD 1/4 Inch Thick - 30334000 For Hendrickson

    BESTfit Grease Seal 3-7/16 ID x 4-3/4 OD 1/4 Inch Thick - 30334000 For Hendrickson

    BESTFIT TRUCK PARTS

    $8.65
    BESTfit Grease Seal Replaces E-1553, 13050, 30334, 30334-000, And R301553* High Quality Seal* Dimensions: - 4.75 Inch O.D. - 3.50 Inch I.D. - 0.25 Inch Thickness* Sold Individually * Warranty On...
    29-05100092
    SKU:
    29-05100092
    Truck Class:
    Heavy Duty
    Diameter Options:
    3 1/2 Inch
    Material Options:
    Bronze
    Product Type:
    Frame & Chassis
    $8.65
    Qty in Cart: 0
    Price:
    $8.65
    Subtotal:
  • Groove Roll Pin 1/2 X 2-3/4 Inch 8204569, 31036 For Volvo

    Groove Roll Pin 1/2 X 2-3/4 Inch 8204569, 31036 For Volvo

    AUTOMANN USA

    $2.30
    Grooved Roll Pin 08204569, 19684R1* High Quality Groove Pin* 1/2 Inch X 2-3/4 Inch Nominal* Sold Individually * Warranty On Groove Pins Against Defects In Workmanship & Material From Date Of...
    29-05100104
    SKU:
    29-05100104
    Length Options:
    2 3/4 Inch
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Trailer
    Make:
    Volvo
    Product Type:
    Frame & Chassis
    $2.30
    Qty in Cart: 0
    Price:
    $2.30
    Subtotal:
  • Beam Center Sleeve 2-1/2 ID x 3-1/2 OD x 12 Inch - 14685000 For Hendrickson

    Beam Center Sleeve 2-1/2 ID x 3-1/2 OD x 12 Inch - 14685000 For Hendrickson

    AFTERMARKET

    $177.99
    Beam Center Sleeve Replaces 14685000, E-1551, Cs66654B, 14685* High Quality Beam Center Sleeve* Dimensions: - 12.00 Inch Length - 3.50 Inch O.D. - 2.50 Inch I.D.* Made In USA* Sold Individually *...
    29-05100091
    SKU:
    29-05100091
    Material Options:
    Steel
    Diameter Options:
    2 1/2 Inch
    Truck Class:
    Heavy Duty
    Product Type:
    Frame & Chassis
    $177.99
    Qty in Cart: 0
    Price:
    $177.99
    Subtotal:
  • Hex Head Flange Bolt 5/8-11 X 1-1/2 Inch Grade 8

    Hex Head Flange Bolt 5/8-11 X 1-1/2 Inch Grade 8

    AUTOMANN USA

    $2.31
    Grade 8 Hex Head Flange Bolt W/ Coarse Pitch Replaces D8502-0402, And 8397076* High Quality Flange Bolt* Dimensions: - 5/8 Inch Bolt Diameter - 1-1/2 Inch Bolt Length* Threads- 11* Sold Individually...
    29-05250008
    SKU:
    29-05250008
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Diameter Options:
    5/8 Inch
    Product Type:
    Frame & Chassis
    $2.31
    Qty in Cart: 0
    Price:
    $2.31
    Subtotal:
  • Equalizer Thrust Washer 5.75 OD X 3.50 ID - 32365000 For Hendrickson

    Equalizer Thrust Washer 5.75 OD X 3.50 ID - 32365000 For Hendrickson

    BESTFIT TRUCK PARTS

    $4.64
    0.125 Inch Thick Equalizer Thrust Washer Replaces 48100123, SRK79* High Quality Washer* 5.75 Inch OD * 3.50 Inch ID * 0.125 Inch Thickness* Sold Individually * Warranty On Washers Against Defects In...
    29-05100090
    SKU:
    29-05100090
    Diameter Options:
    3 1/2 Inch
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $4.64
    Qty in Cart: 0
    Price:
    $4.64
    Subtotal:
  • Poly Bushing 0.75 ID X 1.25 OD X 0.96 Inch

    Poly Bushing 0.75 ID X 1.25 OD X 0.96 Inch

    AUTOMANN USA

    $12.11
    Harris Poly Bushing Replaces E-8684, R308684* High Quality Bushing* Poly* Dimensions: - 0.96 Inch Length - 1.25 Inch O.D. - 0.75 Inch I.D.* Sold Individually * Warranty On Bushings Against Defects In...
    29-05100153
    SKU:
    29-05100153
    Diameter Options:
    3/4 Inch
    Truck Class:
    Heavy Duty
    Material Options:
    Plastic/Poly
    Make:
    Trailer
    Product Type:
    Frame & Chassis
    $12.11
    Qty in Cart: 0
    Price:
    $12.11
    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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