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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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  • Quantity
  • Price
  • Subtotal
  • Bimetal Bushing 1-5/8 X 1-3/8 X 4 Inch - 300578

    Bimetal Bushing 1-5/8 X 1-3/8 X 4 Inch - 300578

    AUTOMANN USA

    $7.50
    Bimetal Bushing Replaces 30057008, 300578, 51310 51310000, R301877, And CS66666B* High Quality Bushing* 1-5/8 Inch OD * 1-3/8 Inch ID * 4 Inch Length* Sold Individually * Warranty On Bushings Against...
    29-05100171
    SKU:
    29-05100171
    Truck Class:
    Heavy Duty
    Length Options:
    4 Inch
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $7.50
    Qty in Cart: 0
    Price:
    $7.50
    Subtotal:
  • Torque Arm Bolt Kit Replaces TK21640, TK19152 For Reyco Granning

    Torque Arm Bolt Kit Replaces TK21640, TK19152 For Reyco Granning

    AFTERMARKET

    $38.21
    Torque Arm Bolt KitRestore suspension strength and reliability with the Torque Arm Bolt Kit, replacing TK21640 and TK19152 for Reyco Granning systems. This complete kit includes (2) compression...
    29-05100084
    SKU:
    29-05100084
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Product Type:
    Frame & Chassis
    $38.21
    Qty in Cart: 0
    Price:
    $38.21
    Subtotal:
  • 4.5 Inch Pivot Connect Bushing - 1293101 For Watson & Chalin SL, STL, TL Series

    4.5 Inch Pivot Connect Bushing - 1293101 For Watson & Chalin SL, STL, TL Series

    AFTERMARKET

    $24.25
    4.5 Inch Pivot Connect Bushing Replaces 1293101* High Quality Pivot Connect Bushing* Dimensions: - 4.50 Inch Length - 2.445 Inch OD - 0.875 Inch ID* Made In USA* Sold Individually * Warranty On Pivot...
    29-05200005
    SKU:
    29-05200005
    Length Options:
    4 1/2 Inch
    Material Options:
    Plastic/Poly
    Truck Class:
    Heavy Duty
    Product Type:
    Frame & Chassis
    $24.25
    Qty in Cart: 0
    Price:
    $24.25
    Subtotal:
  • Poly Torque Arm Bushing Kit Replaces TK19089, L4132 For Dana/Spicer, Reyco Granning

    Poly Torque Arm Bushing Kit Replaces TK19089, L4132 For Dana/Spicer, Reyco Granning

    AFTERMARKET

    $57.99
    Poly Torque Arm Bushing Kit ReplacesMaintain proper suspension alignment and restore ride stability with the Poly Torque Arm Bushing Kit. This high-quality torque arm bushing kit is designed to...
    29-05100089
    SKU:
    29-05100089
    Material Options:
    Plastic/Poly
    Truck Class:
    Heavy Duty
    Make:
    Trailer
    Make:
    Other - Semi-Truck
    Product Type:
    Frame & Chassis
    $57.99
    Qty in Cart: 0
    Price:
    $57.99
    Subtotal:
  • Axle Connection Kit -Replaces E9297, R309297

    Axle Connection Kit -Replaces E9297, R309297

    AFTERMARKET

    $830.99
    Axle Connection Kit W/ Bushing Front, HD Lock Washer, Bolt, Lock Nut, & Washer* High Quality Axle Connection Kit* Consists Of  - (4) Axle Connection Bushing Front  - (8) HD Lock Washers - (8) 7/8-9...
    29-05100033
    SKU:
    29-05100033
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Other - Semi-Truck
    Product Type:
    Frame & Chassis
    $830.99
    Qty in Cart: 0
    Price:
    $830.99
    Subtotal:
  • Torque Rod Bushing Kit - TK19089 For Dana/Spicer, Reyco Granning

    Torque Rod Bushing Kit - TK19089 For Dana/Spicer, Reyco Granning

    AFTERMARKET

    $49.47
    Torque Rod Bushing Kit Replaces TK19089, L4132* High Quality Torque Arm Bushing Kit* Kit Includes:  - (1) Hex Cap Screw, 7 Inch With 3 Inch Of 1 Inch - 14 Thread - (1) Lock Nut, 1 Inch GR C - (2)...
    29-05100080
    SKU:
    29-05100080
    Truck Class:
    Heavy Duty
    Make:
    Trailer
    Product Type:
    Frame & Chassis
    $49.47
    Qty in Cart: 0
    Price:
    $49.47
    Subtotal:
  • 8 Inch Torque Rod Bushing - 44697000 For AG 100, 380-520 Series

    8 Inch Torque Rod Bushing - 44697000 For AG 100, 380-520 Series

    AFTERMARKET

    $67.99
    Torque Rod Bushing Replaces 44697000, 229610, 350015016* High Quality Torque Rod Bushing* Rubber* 8 Inch Length * 1 1/4 Inch- 12* Use With 1-1/4in-12 Elastic Stop Nut - Not Included* Sold...
    29-05100174
    SKU:
    29-05100174
    Truck Class:
    Heavy Duty
    Material Options:
    Rubber
    Product Type:
    Frame & Chassis
    $67.99
    Qty in Cart: 0
    Price:
    $67.99
    Subtotal:
  • BESTfit Torque Arm Bolt Assembly - TK7302 For Reyco Granning

    BESTfit Torque Arm Bolt Assembly - TK7302 For Reyco Granning

    BESTFIT TRUCK PARTS

    $10.39
    BESTfit Torque Arm Bolt Assembly Replaces TK7302, TK7424, A1126, S1126, L4032* High Quality Torque Arm Kit* Consists Of  - (1) Lock Nut - (1) Torque Rod Bushing  - (1) Cap Screw* Made In USA* Sold...
    29-05100082
    SKU:
    29-05100082
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Make:
    Trailer
    Product Type:
    Frame & Chassis
    $10.39
    Qty in Cart: 0
    Price:
    $10.39
    Subtotal:
  • Torque Arm Bolt Assembly - E9552, R309552, SB1014U For Reyco Granning

    Torque Arm Bolt Assembly - E9552, R309552, SB1014U For Reyco Granning

    BESTFIT TRUCK PARTS

    $24.26
    Torque Arm Bolt Assembly Replaces E9552, R309552, SB1014U* High Quality Torque Arm Kit* Consists Of  - (1) Lock Nut - (1) Torque Rod Bushing  - (1) Cap Screw* Sold Individually * Warranty On Torque...
    29-05100155
    SKU:
    29-05100155
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $24.26
    Qty in Cart: 0
    Price:
    $24.26
    Subtotal:
  • BESTfit Equalizer Shaft 2 In OD X 6-3/4 Inch - E3083A For Dayton, IHC

    BESTfit Equalizer Shaft 2 In OD X 6-3/4 Inch - E3083A For Dayton, IHC

    BESTFIT TRUCK PARTS

    $26.96
    BESTfit Equalizer Shaft Replaces 39400021, 39400089, 365350C1* High Quality Equalizer Shaft * Dimensions: - 2.0 Inch OD - 6-3/4 Inch Length* Use With Groove Pin - 1/2in x 2-3/4in Nominal* Sold...
    29-05100054
    SKU:
    29-05100054
    Diameter Options:
    2 Inch
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Length Options:
    6 3/4 Inch
    Make:
    GMC
    Make:
    Chevrolet
    Make:
    Volvo
    Product Type:
    Frame & Chassis
    $26.96
    Qty in Cart: 0
    Price:
    $26.96
    Subtotal:
  • 19.25 Inch Rigid Torque Arm W/ Bushings - 1976201. T3033

    19.25 Inch Rigid Torque Arm W/ Bushings - 1976201. T3033

    AFTERMARKET

    $110.99
    19.25 Inch C To C Rigid Torque Arm Replaces 1976201. T3033This 19 1/4 inch C to C Rigid Torque Arm with bushings is a reliable replacement for part numbers 1976201 and T3033. It plays a key role in...
    29-05100085
    SKU:
    29-05100085
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Make:
    Trailer
    Product Type:
    Frame & Chassis
    $110.99
    Qty in Cart: 0
    Price:
    $110.99
    Subtotal:
  • BESTfit Spring Roller Assembly - E1975 For Reyco Granning Suspension

    BESTfit Spring Roller Assembly - E1975 For Reyco Granning Suspension

    BESTFIT TRUCK PARTS

    $9.24
    BESTfit Spring Roller Assembly Replaces S7230, E1975 And R301975* High Quality Roller Assembly* Consists Of  - (2) U-Bolt Washer - (1) Lock Nut St 1/2 Inch  - (1) Cap Screw 1/2 In-20 X 5-1/2 In  -...
    29-05100046
    SKU:
    29-05100046
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Make:
    Other - Semi-Truck
    Product Type:
    Frame & Chassis
    $9.24
    Qty in Cart: 0
    Price:
    $9.24
    Subtotal:
  • Connection Kit Replaces 48100276, Srk214, 21020 For Neway

    Connection Kit Replaces 48100276, Srk214, 21020 For Neway

    AFTERMARKET

    $474.99
    Connection Kit W/ Outer, Inner, & Tab Beam Washer, And Nuts Replaces 48100276, Srk214, 21020* High Quality Connection Kit* Consists Of  - (2) Washer (For Outer Beam) - (2) Tab Washer - (2) Equalizer...
    29-05100030
    SKU:
    29-05100030
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Make:
    Other - Semi-Truck
    Product Type:
    Frame & Chassis
    $474.99
    Qty in Cart: 0
    Price:
    $474.99
    Subtotal:
  • Torque Rod Kit- Replaces 65781001 For Hendrickson

    Torque Rod Kit- Replaces 65781001 For Hendrickson

    AFTERMARKET

    $301.99
    Torque Rod Kit Replaces 65781-001, 65781-001L* High Quality Torque Rod Kit* Includes  - (1) Ultra Rod Plus Tube End W/O Bushing - (1) Ultra Rod Plus Spacer End W/O Bushing - (2) Torque Rod Bushing...
    29-05100059
    SKU:
    29-05100059
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Product Type:
    Frame & Chassis
    $301.99
    Qty in Cart: 0
    Price:
    $301.99
    Subtotal:
  • Service Repair Kit W/ Pivot Bushing, Cap Screw, Washer, 1-1/8 Inch Lock Nut For Neway

    Service Repair Kit W/ Pivot Bushing, Cap Screw, Washer, 1-1/8 Inch Lock Nut For Neway

    AFTERMARKET

    $281.99
    Service Repair Kit Replaces E9300A. 2501619C91. 48100260* High Quality Service Repair Kit* Consists Of  - (2) Pivot Bushing  - (2) 1-1/8 Inch X 9-1/2 Inch Cap Screw - (4) Washer - 1-1/8in ID x 4.0in...
    29-05100026
    SKU:
    29-05100026
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Make:
    Other - Semi-Truck
    Product Type:
    Frame & Chassis
    $281.99
    Qty in Cart: 0
    Price:
    $281.99
    Subtotal:
  • Axle Connection Kit - SRK-03 For Watson & Chalin

    Axle Connection Kit - SRK-03 For Watson & Chalin

    AFTERMARKET

    $302.99
    Single Wheel Axle Connect Kit Replaces SRK-03* High Quality Axle Connection Kit* Consists Of  - (2) Cap Screw 1-1/8 In X 8-1/2 In  - (2) Lock Nut 1-1/8 In  - (4) U Bolt Washer 1-1/8 In - (2) Pivot...
    29-05090017
    SKU:
    29-05090017
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $302.99
    Qty in Cart: 0
    Price:
    $302.99
    Subtotal:
  • Suspension Washer 1.77 OD X 1.021 ID X 3/16 Inch For Mack Trunnion Stand Roller

    Suspension Washer 1.77 OD X 1.021 ID X 3/16 Inch For Mack Trunnion Stand Roller

    AUTOMANN USA

    $5.78
    Mack 3/16 Inch Thick Suspension Washer* High Quality Washer* 1.77 Inch OD* 1.021 Inch ID* 3/16 Inch Thickness * Suspension Type* Sold Individually * Warranty On Washers Against Defects In Workmanship...
    11-05100003
    SKU:
    11-05100003
    Diameter Options:
    1 Inch
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Make:
    Mack
    Product Type:
    Frame & Chassis
    $5.78
    Qty in Cart: 0
    Price:
    $5.78
    Subtotal:
  • Thrust Washer, 1-3/4in ID x 4-1/8in OD - 17501011 For Silent Drive

    Thrust Washer, 1-3/4in ID x 4-1/8in OD - 17501011 For Silent Drive

    AUTOMANN USA

    $8.08
    1/4 Inch Thick Silent Drive Thrust Washer* High Quality Thrust Washer* Dimensions: - 1-3/4 Inch ID - 4-1/8 Inch OD* 1/4 Inch Thickness* Silent Drive* Sold Individually * Warranty On Thrust Washers...
    09-05250029
    SKU:
    09-05250029
    Material Options:
    Steel
    Diameter Options:
    1 3/4 Inch
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $8.08
    Qty in Cart: 0
    Price:
    $8.08
    Subtotal:
  • Shock Bolt Kit, 14.Inch Ride Heights - KIT11104 For Meritor

    Shock Bolt Kit, 14.Inch Ride Heights - KIT11104 For Meritor

    AUTOMANN USA

    $16.18
    Shock Bolt Kit Replaces Kit11104* High Quality Shock Bolt Kit* Consists Of  - (1) Cap Screw 3/4 Inch X 3-1/2 Inch - (1) Shock Bolt 3/4in -10 x 4-1/2in Lg - (2) Lock Nut 3/4in -10* 14.Inch Ride...
    09-05250038
    SKU:
    09-05250038
    Length Options:
    3 1/2 Inch
    Material Options:
    Steel
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $16.18
    Qty in Cart: 0
    Price:
    $16.18
    Subtotal:
  • 4.375 Inch Torque Rod Bushing Replaces E10303, E-10303, R3010303, 90008265 For Kenworth

    4.375 Inch Torque Rod Bushing Replaces E10303, E-10303, R3010303, 90008265 For Kenworth

    AFTERMARKET

    $51.99
    Non-Rotational Torque Rod Bushing with High Articulation Notched PinKeep your Kenworth operating at peak performance with the 4.375 Inch Torque Rod Bushing. Designed to replace E10303, E-10303,...
    02-05100005
    SKU:
    02-05100005
    Diameter Options:
    2 3/4 Inch
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Kenworth
    Product Type:
    Frame & Chassis
    $51.99
    Qty in Cart: 0
    Price:
    $51.99
    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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