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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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  • Poly Blue Cabin-Sway Bushing - 2 In ID X 3.75 In OD For Kenworth Air Glide 4-Bag

    Poly Blue Cabin-Sway Bushing - 2 In ID X 3.75 In OD For Kenworth Air Glide 4-Bag

    BESTFIT TRUCK PARTS

    $16.96
    Cabin Sway Bushing Replaces E7475, R307475* High Quality Cabin-Sway Bushing* Poly* Blue* 2.00 Inch I.D.* 3.75 Inch O.D.* 2.375 Inch Height* Pivot-Sway* 85 Duro* Air Glide* Sold Individually* Warranty...
    02-09500002
    SKU:
    02-09500002
    Material Options:
    Plastic/Poly
    Diameter Options:
    2 Inch
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Product Type:
    Frame & Chassis
    $16.96
    Qty in Cart: 0
    Price:
    $16.96
    Subtotal:
  • Height Control Valve Linkage Bushing 0.375 Inch Thick For Kenworth IO in ID Looped Linkage

    Height Control Valve Linkage Bushing 0.375 Inch Thick For Kenworth IO in ID Looped Linkage

    AUTOMANN USA

    $7.36
    Kenworth HCV Linkage BushingThe Height Control Valve Linkage Bushing for Kenworth provides professional-grade reliability for smooth suspension operation. Designed for 0.375-inch thick IO in ID...
    02-05180000
    SKU:
    02-05180000
    Truck Class:
    Heavy Duty
    Material Options:
    Rubber
    Make:
    Kenworth
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $7.36
    Qty in Cart: 0
    Price:
    $7.36
    Subtotal:
  • 2 Hole Step Plate Bracket - 2.375 Inch C To C For Kenworth

    2 Hole Step Plate Bracket - 2.375 Inch C To C For Kenworth

    AUTOMANN USA

    $13.90
    2 Hole Step Plate Bracket Replaces K350-930* High Quality Step Plate Bracket* 1.5Inch Width * 4.375Inch Length * .25Inch Thickness* 2 Hole* 0.430In Diameter* 2.375In C To C* Sold Individually*...
    02-05050009
    SKU:
    02-05050009
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Product Type:
    Frame & Chassis
    $13.90
    Qty in Cart: 0
    Price:
    $13.90
    Subtotal:
  • HD Lock Washers

    HD Lock Washers

    AUTOMANN USA

    $0.10 - $1.01
    Choose Option(s) to see description.3/4 Inch HD Lock WasherHD Lock Washer For 3/4 Inch Bolt* High Quality Lock Washer* 1/4 Inch Width* 7/32 Inch Thickness* 3/4 Inch Size* Sold Individually * Warranty...
    PPR_206760
    SKU:
    PPR_206760
    Material Options:
    Steel
    Truck Class:
    Universal
    Make:
    Universal Items
    Truck Class:
    Heavy Duty
    Product Type:
    Frame & Chassis
    $0.10 - $1.01
    Qty in Cart: 0
    Price:
    $0.10 - $1.01
    Subtotal:
  • Bronze Bushing, 1-1/4 OD X 1 ID Inch

    Bronze Bushing, 1-1/4 OD X 1 ID Inch

    AUTOMANN USA

    $11.01 - $13.86
    Choose Option(s) to see description.3-1/2 Inch Bronze Bushing, 1-1/4 OD X 1 ID Inch3-1/4 Bronze Bushing With 1-1/4 Inch OD & 1 Inch ID* High Quality Bushing* Bronze* 3.50 Inch Length* 1.25 Inch O.D.*...
    PPR_206200
    SKU:
    PPR_206200
    Material Options:
    Bronze
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $11.01 - $13.86
    Qty in Cart: 0
    Price:
    $11.01 - $13.86
    Subtotal:
  • Cab Shock Absorber Replaces 83081 For Kenworth, Peterbilt

    Cab Shock Absorber Replaces 83081 For Kenworth, Peterbilt

    AFTERMARKET

    $85.99
    Cab Shock Absorber Replaces R71-6009, 1201-8002, 1201-8006, 83081, TBR83081Experience smoother rides and superior cab stability with this Cab Shock Absorber, compatible with Kenworth and Peterbilt...
    29-10140005
    SKU:
    29-10140005
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Make:
    Peterbilt
    Product Type:
    Frame & Chassis
    $85.99
    Qty in Cart: 0
    Price:
    $85.99
    Subtotal:
  • Air Spring Cabin Replaces 11040007, 11040016, T81-6001 For Kenworth & Peterbilt

    Air Spring Cabin Replaces 11040007, 11040016, T81-6001 For Kenworth & Peterbilt

    AFTERMARKET

    $64.99
    Sleeve Type Air Spring CabinYou have come to the right place if you want to update your suspension with a quality air spring that is engineered to ensure safe driving regardless of the loading...
    29-10140006
    SKU:
    29-10140006
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Kenworth
    Make:
    Peterbilt
    Product Type:
    Frame & Chassis
    $64.99
    Qty in Cart: 0
    Price:
    $64.99
    Subtotal:
  • Wear Pad Washer - 4.50 OD X 2.12 ID X 0.156 Inch Thick

    Wear Pad Washer - 4.50 OD X 2.12 ID X 0.156 Inch Thick

    AUTOMANN USA

    $17.00
    Wear Pad Washer Replaces E9441, E9441A, 1160519B301* High Quality Wear Pad Washer* 4.50 Inch O.D.* 2.12 Inch I.D.* 0.156 Inch Thickness* Plastic/Nylon* Sold Individually * Warranty On Wear Pad...
    09-05250094
    SKU:
    09-05250094
    Diameter Options:
    2 Inch
    Truck Class:
    Universal
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $17.00
    Qty in Cart: 0
    Price:
    $17.00
    Subtotal:
  • Hex Head Flange Bolt 1/2-13 X 1 Inch Grade 5

    Hex Head Flange Bolt 1/2-13 X 1 Inch Grade 5

    AUTOMANN USA

    $2.31
    Grade 5 Flange Bolt With 1/2 Inch Diameter* High Quality Flange Bolt* 1/2 Inch Bolt Diameter* 1 Inch Bolt Length* Bolt Type- Hex Bolts* Thread- 13* Pitch- Coarse* Grade- 5* Sold Individually *...
    09-05250080
    SKU:
    09-05250080
    Diameter Options:
    1/2 Inch
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $2.31
    Qty in Cart: 0
    Price:
    $2.31
    Subtotal:
  • End Washer, 3.50 OD X 0.77 Inch ID For Mack

    End Washer, 3.50 OD X 0.77 Inch ID For Mack

    AUTOMANN USA

    $3.47
    End Washer Replaces 15AX1373, 15QD1132* High Quality End Washer * 3.50 Inch O.D.* 0.77 Inch I.D.* Trans D-Washer* Sold Individually * Warranty On End Washer S Against Defects In Workmanship &...
    11-07050006
    SKU:
    11-07050006
    Diameter Options:
    3/4 Inch
    Truck Class:
    Heavy Duty
    Material Options:
    Aluminum
    Make:
    Mack
    Product Type:
    Frame & Chassis
    $3.47
    Qty in Cart: 0
    Price:
    $3.47
    Subtotal:
  • Adjustment Rod Kit For 5th Wheel Frontaine 3000 Series

    Adjustment Rod Kit For 5th Wheel Frontaine 3000 Series

    AFTERMARKET

    $66.99
    Adjustment Rod Kit Replaces KITROD3000* High Quality Rod Kit* 41.25 Inches Length* Adjustment* Made In USA* Sold Individually * Warranty On Rod Kits Against Defects In Workmanship & Material From...
    09-05110029
    SKU:
    09-05110029
    Material Options:
    Steel
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $66.99
    Qty in Cart: 0
    Price:
    $66.99
    Subtotal:
  • 12 MM Flange Lock Nut W/ 1.25 Pitch

    12 MM Flange Lock Nut W/ 1.25 Pitch

    AUTOMANN USA

    $1.93
    12 MM Flange Lock Nut* High Quality Flanged Lock Nut* 1.25 Pitch* Sold Individually * Warranty On Flanged Lock Nuts Against Defects In Workmanship & Material From Date Of Purchase*** High Quality...
    09-05250102
    SKU:
    09-05250102
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $1.93
    Qty in Cart: 0
    Price:
    $1.93
    Subtotal:
  • Bolt Kit W/ 8 Washers And 8 Nuts For Hendrickson Rear AR 340/380 Series

    Bolt Kit W/ 8 Washers And 8 Nuts For Hendrickson Rear AR 340/380 Series

    AFTERMARKET

    $130.99
    Bolt Kit Replaces 56659-1* High Quality Bolt Kit* Set Of 8* 8 Bolts* 8 Nuts* 16 Washers* Used On Hendrickson Rear AR 340/380 Series* Sold Individually * Warranty On Bolt Kits Against Defects In...
    09-05250091
    SKU:
    09-05250091
    Material Options:
    Steel
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $130.99
    Qty in Cart: 0
    Price:
    $130.99
    Subtotal:
  • Steel Washer, 2.125 ID, .50 OD Inch For Ridewell Rear Suspension

    Steel Washer, 2.125 ID, .50 OD Inch For Ridewell Rear Suspension

    AUTOMANN USA

    $5.78
    Thickness 0.19 Inch Washer Ridewell Replaces 1160519B302* High Quality Washer* Steel* 2.125 Inch I.D.* 4.50 Inch O.D.* 0.19 Inch Thickness* Sold Individually * Warranty On Washers Against Defects In...
    09-05250087
    SKU:
    09-05250087
    Material Options:
    Steel
    Truck Class:
    Universal
    Make:
    Trailer
    Product Type:
    Frame & Chassis
    $5.78
    Qty in Cart: 0
    Price:
    $5.78
    Subtotal:
  • Center Bolt Sleeve Lengthener 7/16 ID X 5/8 OD X 0.196 Inch

    Center Bolt Sleeve Lengthener 7/16 ID X 5/8 OD X 0.196 Inch

    AUTOMANN USA

    $1.14
    7/16 Inch ID X 5/8 Inch OD X 0.196 Inch Leaf Spring Center Bolt Lengthener SleeveUse this bolt sleeve to lengthen your leaf spring center bolt head by an extra 0.196 inch when using tapered shims...
    09-05250092
    SKU:
    09-05250092
    Material Options:
    Brass Copper
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $1.14
    Qty in Cart: 0
    Price:
    $1.14
    Subtotal:
  • Shock Spacer - 1.5 In OD, 0.81 In ID For Hendrickson Turner

    Shock Spacer - 1.5 In OD, 0.81 In ID For Hendrickson Turner

    AUTOMANN USA

    $5.67
    Shock Spacer Replaces E11831, A20913* High Quality Shock Spacer* 1 1/2 In OD * 0.810 Inch ID* 1.15625In Thickness* Sold Individually * Warranty On Shock Spacers Against Defects In Workmanship &...
    09-05250082
    SKU:
    09-05250082
    Diameter Options:
    1 1/2 Inch
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $5.67
    Qty in Cart: 0
    Price:
    $5.67
    Subtotal:
  • Shock Spacer - 1 1/2 In OD, 3/4 In ID For Hendrickson Turner

    Shock Spacer - 1 1/2 In OD, 3/4 In ID For Hendrickson Turner

    AUTOMANN USA

    $6.34
    0.78 Inch Tall Shock Spacer* High Quality Shock Spacer* 3/4 Inch ID* 1.5In OD * 0.78 Inch Height * Sold Individually * Warranty On Shock Spacers Against Defects In Workmanship & Material From Date Of...
    09-05250081
    SKU:
    09-05250081
    Material Options:
    Brass
    Diameter Options:
    3/4 Inch
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $6.34
    Qty in Cart: 0
    Price:
    $6.34
    Subtotal:
  • 1.5 Inch Shock Spacer, 2.25 In OD, 0.77 In ID

    1.5 Inch Shock Spacer, 2.25 In OD, 0.77 In ID

    AUTOMANN USA

    $9.25
    1.5 Inch Shock Spacer Replaces A23645Maintain perfect suspension alignment with this reliable 1.5 Inch Shock Spacer. With a 2.25-inch OD, 0.77-inch ID, and 1.5-inch height, it strengthens your shock...
    09-05250083
    SKU:
    09-05250083
    Material Options:
    Brass
    Diameter Options:
    3/4 Inch
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $9.25
    Qty in Cart: 0
    Price:
    $9.25
    Subtotal:
  • Torque Arm Bolt Kit E-5277, 49176001 For Hendrickson Rear E4 Series

    Torque Arm Bolt Kit E-5277, 49176001 For Hendrickson Rear E4 Series

    AUTOMANN USA

    $5.44
    Torque Arm Bolt Kit With Cap Screw, Lock Nut, U-Bolt Washer* High Quality Bolt Kit* Includes - Cap Screw  - Lock Nut  - U Bolt Washer* For Torque Arm* Sold Individually * Warranty On Bolt Kits...
    09-05250074
    SKU:
    09-05250074
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $5.44
    Qty in Cart: 0
    Price:
    $5.44
    Subtotal:
  • 1-5/16 Inch ID -12 TPI Nut For 9541 & 9547 Air Springs

    1-5/16 Inch ID -12 TPI Nut For 9541 & 9547 Air Springs

    AUTOMANN USA

    $16.52
    1 1/2 OD, 1-5/16 ID Air Spring NutStrengthen your air spring assemblies with this 1-5/16 Inch ID -12 TPI Nut, designed for 9541 and 9547 air springs. With a 1.5-inch outer diameter and 0.925-inch...
    09-05250073
    SKU:
    09-05250073
    Truck Class:
    Universal
    Material Options:
    Brass
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $16.52
    Qty in Cart: 0
    Price:
    $16.52
    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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