null

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
  • FREE SHIPPING
    Front Axle Bottom Shock Mounting Bracket Kit For Loadshare Air Ride Kits

    Front Axle Bottom Shock Mounting Bracket Kit For Loadshare Air Ride Kits

    LOAD-SHARE SUSPENSIONS

    $260.99
    Front Axle Bottom Shock Mounting Bracket Kit - Both SideThe Bottom Mounting Bracket Kit for Loadshare Air Ride Kits fits models CLS-10083, CLS-10191, and CLS-10192. It's compatible with trucks like...
    29-050902
    SKU:
    29-050902
    Color:
    Black
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $260.99
    Qty in Cart: 0
    Price:
    $260.99
    Subtotal:
  • Load-Share Top Mounting Bracket For Air Ride Kit W/ 10247 Air Spring And Air Ride Kit

    Load-Share Top Mounting Bracket For Air Ride Kit W/ 10247 Air Spring And Air Ride Kit

    LOAD-SHARE SUSPENSIONS

    $111.99
    Top Mounting Bracket* High Quality Top Mounting Bracket* Goes With 10247 Air Spring And Air Ride Kit* Sold Individually* Warranty On Top Mounting Brackets Against Defects In Workmanship & Material...
    29-0509005
    SKU:
    29-0509005
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Peterbilt
    Make:
    Kenworth
    Product Type:
    Frame & Chassis
    $111.99
    Qty in Cart: 0
    Price:
    $111.99
    Subtotal:
  • Load-Share Air Spring Used With 10257 Air Ride Kit

    Load-Share Air Spring Used With 10257 Air Ride Kit

    LOAD-SHARE SUSPENSIONS

    $239.99
    Replacement Air Spring For Air Ride Kit* High Quality Air Spring* Used With A 10257 Air Ride Kit* Sold Individually* Warranty On Air Springs Against Defects In Workmanship & Material From Date Of...
    29-0509004
    SKU:
    29-0509004
    Truck Class:
    Heavy Duty
    Material Options:
    Rubber
    Make:
    Kenworth
    Make:
    Peterbilt
    Product Type:
    Frame & Chassis
    $239.99
    Qty in Cart: 0
    Price:
    $239.99
    Subtotal:
  • BESTfit 2 Leaf Parabolic Spring 4 Inch Wide Replaces B816002 For Kenworth & Peterbilt

    BESTfit 2 Leaf Parabolic Spring 4 Inch Wide Replaces B816002 For Kenworth & Peterbilt

    BESTFIT TRUCK PARTS

    $509.99
    BESTfit 4 Inch 2 Leaf Parabolic SpringMaintain the smoothest ride and strongest support with the BESTfit 2 Leaf Parabolic Spring, designed for Kenworth and Peterbilt vehicles. Measuring 4 inches...
    29-0509003
    SKU:
    29-0509003
    Truck Class:
    Heavy Duty
    Make:
    Peterbilt
    Make:
    Kenworth
    Product Type:
    Frame & Chassis
    $509.99
    Qty in Cart: 0
    Price:
    $509.99
    Subtotal:
  • Cross Tube Assembly Replaces 971776, 971096

    Cross Tube Assembly Replaces 971776, 971096

    AUTOMANN USA

    $331.99
    2 X 46 X 1/4 Inch Cross Tube Assembly W/ Tie Rod Ends* High Quality Cross Tube Assembly* With Tie Rod Ends * 2.0 Inch OD X 46-1/4 Inch OAL * With 1-5/8 Inch X 12 Both Ends * Sold Individually**...
    29-050900032
    SKU:
    29-050900032
    Truck Class:
    Heavy Duty
    Length Options:
    46 Inch
    Product Type:
    Frame & Chassis
    $331.99
    Qty in Cart: 0
    Price:
    $331.99
    Subtotal:
  • FREE SHIPPING OVER $249
    1.794 X 8.844 Inch King Pin Kit - Replaces 2500542C91, 84001930, R201419, R201472, 3093704, 5301205

    1.794 X 8.844 Inch King Pin Kit - Replaces 2500542C91, 84001930, R201419, R201472, 3093704, 5301205

    AUTOMANN USA

    $238.99
    1.794 X 8.844 Inch King Pin Kit W/ 460.73 Caps, DD BushingAchieve precise, durable steering performance with this Meritor 1.794 x 8.844 Inch King Pin Kit. With composite bushings, 460.73 caps, and a...
    29-050900028
    SKU:
    29-050900028
    Truck Class:
    Heavy Duty
    Material Options:
    Plastic/Poly
    Product Type:
    Frame & Chassis
    $238.99
    Qty in Cart: 0
    Price:
    $238.99
    Subtotal:
  • FREE SHIPPING OVER $249
    1.794 X 9.06 Inch King Pin Kit W/ 460.T182S Bearing - Replaces 328342, 5012205, 5301201, 85105491, R200281

    1.794 X 9.06 Inch King Pin Kit W/ 460.T182S Bearing - Replaces 328342, 5012205, 5301201, 85105491, R200281

    AUTOMANN USA

    $188.99
    1.794 X 9.06 Inch King Pin Kit W/ 460.T182S BearingOptimize your truck's steering system with the 1.794 X 9.06 Inch King Pin Kit W/ 460.T182S Bearing. Featuring bronze SD bushings, 467.209 bushing,...
    29-050900027
    SKU:
    29-050900027
    Truck Class:
    Heavy Duty
    Material Options:
    Bronze
    Product Type:
    Frame & Chassis
    $188.99
    Qty in Cart: 0
    Price:
    $188.99
    Subtotal:
  • FREE SHIPPING OVER $249
    1.921 X 9.87 Inch King Pin Kit W/ 2 MLP555, MLP557 Type DD Bushings - Replaces 1668411C91, 2621635, 4C4O3111AA

    1.921 X 9.87 Inch King Pin Kit W/ 2 MLP555, MLP557 Type DD Bushings - Replaces 1668411C91, 2621635, 4C4O3111AA

    AUTOMANN USA

    $214.99
    King Pin Kit Replaces 4C4Z3111AA, 5012009, 8305203, KPK1155, R201426 & R201486Maintain smooth, responsive steering with this 1.921 X 9.87 Inch King Pin Kit, equipped with two MLP555 and two MLP557...
    29-050900026
    SKU:
    29-050900026
    Truck Class:
    Heavy Duty
    Material Options:
    Bronze
    Product Type:
    Frame & Chassis
    $214.99
    Qty in Cart: 0
    Price:
    $214.99
    Subtotal:
  • FREE SHIPPING OVER $249
    1.625 X 9.12 Inch King Pin Kit - Replaces 5012005, 806355, KPK1156, R200269, R201509

    1.625 X 9.12 Inch King Pin Kit - Replaces 5012005, 806355, KPK1156, R200269, R201509

    AUTOMANN USA

    $226.99
    1.625 X 9.12 Inch King Pin Kit* High Quality King Pin Kit* 1.625 In X 9.12 Inch* King Pin Type- Sd * Bushing Type- Bronze * OD - 1.625 Inch * Length- 9.2 Inch * Thrust Bearing- 460.T1910 * Bushing-...
    29-050900025
    SKU:
    29-050900025
    Truck Class:
    Heavy Duty
    Material Options:
    Bronze
    Product Type:
    Frame & Chassis
    $226.99
    Qty in Cart: 0
    Price:
    $226.99
    Subtotal:
  • FREE SHIPPING
    1.794 X 10.41 Inch King Pin Kit Draw Key - Replaces 1115275, R201315BM, R201470, SKB-634, SRK-102

    1.794 X 10.41 Inch King Pin Kit Draw Key - Replaces 1115275, R201315BM, R201470, SKB-634, SRK-102

    AUTOMANN USA

    $258.99
    King Pin Kit Draw Key- 1.794 X 10.41 InchKeep your truck's steering system operating at peak efficiency with this premium King Pin Kit Draw Key, featuring 1.794-inch OD, 10.41-inch length, and...
    29-050900024
    SKU:
    29-050900024
    Truck Class:
    Heavy Duty
    Material Options:
    Bronze
    Make:
    International
    Make:
    Volvo
    Product Type:
    Frame & Chassis
    $258.99
    Qty in Cart: 0
    Price:
    $258.99
    Subtotal:
  • FREE SHIPPING
    1.625 X 9.12 Inch King Pin Kit W/ SD Bushing - Replaces 50.121.05, 70.121.05, 806356, KPK1148, R200251

    1.625 X 9.12 Inch King Pin Kit W/ SD Bushing - Replaces 50.121.05, 70.121.05, 806356, KPK1148, R200251

    AUTOMANN USA

    $275.99
    1.625 X 9.12 Inch King Pin Kit W/ SD Bushing - Replaces H-1008431 & 1112446Keep your Eaton EFA10F4, EFA12F3, or EFA13F3 steer axles in peak condition with this 1.625 X 9.12 Inch King Pin Kit with SD...
    29-050900023
    SKU:
    29-050900023
    Truck Class:
    Heavy Duty
    Material Options:
    Bronze
    Product Type:
    Frame & Chassis
    $275.99
    Qty in Cart: 0
    Price:
    $275.99
    Subtotal:
  • FREE SHIPPING OVER $249
    1.794 X 10.41 Inch King Pin Kit Draw Key- Replaces 2010021, 2599033, 2621572, 5301153, 549800C91

    1.794 X 10.41 Inch King Pin Kit Draw Key- Replaces 2010021, 2599033, 2621572, 5301153, 549800C91

    AUTOMANN USA

    $233.99
    King Pin Kit Draw Key- 1.794 X 10.41 InchRely on this 1.794 X 10.41 Inch King Pin Kit Draw Key to maintain your truck's steering precision. Constructed with bronze DD bushings, a 460.T182S thrust...
    29-050900021
    SKU:
    29-050900021
    Truck Class:
    Heavy Duty
    Material Options:
    Bronze
    Product Type:
    Frame & Chassis
    $233.99
    Qty in Cart: 0
    Price:
    $233.99
    Subtotal:
  • Drag Link 28.375 Inch C To C Replaces K162-587, 346377, R250088 For PACCAR 579, 587, W900B, W900L, W900S

    Drag Link 28.375 Inch C To C Replaces K162-587, 346377, R250088 For PACCAR 579, 587, W900B, W900L, W900S

    AUTOMANN USA

    $158.99
    28.375 Inch C-C Drag Link Fits Kenworth W900B, W900L, Peterbilt 579 & 587Experience durable and precise steering with this Drag Link, compatible with PACCAR 579, 587, W900B, W900L, and W900S,...
    29-050900010
    SKU:
    29-050900010
    Truck Class:
    Heavy Duty
    Length Options:
    28 Inch
    Make:
    Kenworth
    Make:
    Peterbilt
    Product Type:
    Frame & Chassis
    $158.99
    Qty in Cart: 0
    Price:
    $158.99
    Subtotal:
  • Bottom Spring Mounting Bracket Shock Absorber For Load-Share 4 Inch Air Ride Kits 20230-A

    Bottom Spring Mounting Bracket Shock Absorber For Load-Share 4 Inch Air Ride Kits 20230-A

    LOAD-SHARE SUSPENSIONS

    $107.99
    Load-Share 4 Inch Leaf Bottom Mounting Bracket For Shock Absorber* High Quality Mounting Bracket* Bottom Spring Mounting Bracket* For Shock Absorber* Sold Individually* Warranty On Mounting Brackets...
    29-050900009
    SKU:
    29-050900009
    Truck Class:
    Heavy Duty
    Product Type:
    Frame & Chassis
    $107.99
    Qty in Cart: 0
    Price:
    $107.99
    Subtotal:
  • Sleeve Style Front Axle Air Bag For AG130 Suspension

    Sleeve Style Front Axle Air Bag For AG130 Suspension

    AUTOMANN USA

    $160.99
    Front Axle Air BagEnsure superior ride quality and front axle support with the Sleeve Style Front Axle Air Bag, specifically designed for AG130 suspension systems. This high-quality air bag features...
    29-050900007
    SKU:
    29-050900007
    Truck Class:
    Heavy Duty
    Position:
    Front
    Product Type:
    Frame & Chassis
    $160.99
    Qty in Cart: 0
    Price:
    $160.99
    Subtotal:
  • 12V Wabco Type ABS Valve Modulator Package With Adapter Cables

    12V Wabco Type ABS Valve Modulator Package With Adapter Cables

    AUTOMANN USA

    $353.99
    5.5 PSI Crack Pressure 12V Wabco Type Tractor ABS Valve PackEquip your truck with consistent braking accuracy using the Wabco-Type 12V ABS Valve Modulator Package. With a precise 5.5 PSI crack...
    29-050900006
    SKU:
    29-050900006
    Truck Class:
    Heavy Duty
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $353.99
    Qty in Cart: 0
    Price:
    $353.99
    Subtotal:
  • BESTfit Cross Tube 1.772 X 61.75 Inch

    BESTfit Cross Tube 1.772 X 61.75 Inch

    BESTFIT TRUCK PARTS

    $163.99
    BESTfit 1.772 OD, 1.125 ID X 61.75 Inch Cross Tube* High Quality Cross Tube* 1.772 Inch O.D.* 1 1/8 Inch - 12 O.D. * 61.75 Inch Length * Sold Individually * Warranty On Cross Tube Against Defects In...
    29-050900005
    SKU:
    29-050900005
    Length Options:
    61 Inch
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Product Type:
    Frame & Chassis
    $163.99
    Qty in Cart: 0
    Price:
    $163.99
    Subtotal:
  • Cross Tube 1.772 OD X 60.75 Inch

    Cross Tube 1.772 OD X 60.75 Inch

    BESTFIT TRUCK PARTS

    $163.99
    1.772 OD X 60.75 Inch Cross Tube* High Quality Cross Tube* 1.772 Inch O.D* 1 1/8 Inch - 12 I.D.* 60.75 Inch Length * Sold Individually * Warranty On Cross Tube Against Defects In Workmanship &...
    29-050900004
    SKU:
    29-050900004
    Length Options:
    60 Inch
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Product Type:
    Frame & Chassis
    $163.99
    Qty in Cart: 0
    Price:
    $163.99
    Subtotal:
  • BESTfit Cross Tube 1.772 OD X 58.75 Inch

    BESTfit Cross Tube 1.772 OD X 58.75 Inch

    BESTFIT TRUCK PARTS

    $163.99
    BESTfit 1.772 OD X 58.75 Inch Cross Tube* High Quality Cross Tube * 1.772 Inch O.D. * 1 1/8 Inch - 12 I.D* 58.75 Inch Length * Sold Individually * Warranty On Cross Tube Against Defects In...
    29-050900003
    SKU:
    29-050900003
    Truck Class:
    Heavy Duty
    Length Options:
    58 Inch
    Material Options:
    Stainless Steel
    Product Type:
    Frame & Chassis
    $163.99
    Qty in Cart: 0
    Price:
    $163.99
    Subtotal:
  • Cross Tube 1.772 OD X 59.75 Inch

    Cross Tube 1.772 OD X 59.75 Inch

    BESTFIT TRUCK PARTS

    $523.99
    1.772 OD X 59.75 Inch Cross Tube* High Quality Cross Tube* 59.75 Inch Length* 1.772 Inch O.D.* 1-1/8 Inch * 12 I.D.* Sold Individually* Warranty On Cross Tubes Against Defects In Workmanship &...
    29-050900002
    SKU:
    29-050900002
    Truck Class:
    Heavy Duty
    Length Options:
    59 Inch
    Material Options:
    Stainless Steel
    Product Type:
    Frame & Chassis
    $523.99
    Qty in Cart: 0
    Price:
    $523.99
    Subtotal:
  • Total: items /

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.


Introducing the Official 4 State Trucks Mobile App – Gear Up On the Go!