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Kenworth T660 Parts

The Kenworth T660 semi truck model is a good example of Kenworth's commitment to providing great trucks and great value and we can make you stand out even more by customizing your semi truck with quality aftermarket and custom parts and chrome accessories from 4 State Trucks. Whether you want to update your KW exhaust, fenders, or fuel tank, 4 State Trucks has the right aftermarket parts for the job. Hit the highway in safety and style in your Kenworth heavy duty truck or 18 wheeler.
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  • Price
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  • 6 Inch Slack Adjuster- Haldex Self-Setting Type Replaces E11924, 40920025, 40020214, 569640020214, M808001

    6 Inch Slack Adjuster- Haldex Self-Setting Type Replaces E11924, 40920025, 40020214, 569640020214, M808001

    AFTERMARKET

    $155.99
    6 Inch Automatic Haldex Self-Setting Type- 1.625 Inch-37 SplineAchieve precise braking control with this 6 Inch Slack Adjuster - Haldex Self-Setting Type. Designed for Fruehauf trailer axles with 16...
    29-05170025
    SKU:
    29-05170025
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $155.99
    Qty in Cart: 0
    Price:
    $155.99
    Subtotal:
  • 6 Inch Slack Adjuster- Gunite Type Replaces E15056, AS1173, SA11903, 25QD419P4, 20714928

    6 Inch Slack Adjuster- Gunite Type Replaces E15056, AS1173, SA11903, 25QD419P4, 20714928

    AFTERMARKET

    $98.99
    6 Inch Automatic Gunite Type Slack Adjuster- 1.50 Inch-28 SplineAchieve smooth, automatic brake adjustment with this 6 Inch Slack Adjuster - Gunite Type. Engineered for welded clevis chambers with 1...
    29-05170019
    SKU:
    29-05170019
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $98.99
    Qty in Cart: 0
    Price:
    $98.99
    Subtotal:
  • Bushing Tool Replaces AL800089, 8080089, 34013087L, 34013088, 34013088L For Hendrickson Suspension

    Bushing Tool Replaces AL800089, 8080089, 34013087L, 34013088, 34013088L For Hendrickson Suspension

    AFTERMARKET

    $905.99
    Hendrickson Suspension Bushing ToolEnsure efficient suspension service with this high-quality Bushing Tool for Hendrickson, replacing AL800089, 8080089, 34013087L, 34013088, and 34013088L. Compatible...
    29-05100270
    SKU:
    29-05100270
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $905.99
    Qty in Cart: 0
    Price:
    $905.99
    Subtotal:
  • 16.50 X 5.00 Inch Brake Drum Replaces 9002X, 2603638C1, 53-123627-002, 53-123816-002, 53123627002, 53123816002, 600001

    16.50 X 5.00 Inch Brake Drum Replaces 9002X, 2603638C1, 53-123627-002, 53-123816-002, 53123627002, 53123816002, 600001

    AFTERMARKET

    $433.99
    16.50 X 5.00 Inch 10 Hole Brake DrumKeep your brakes performing at their best with this 16.50 X 5.00 Inch Brake Drum. Built with a steel shell, fused gray iron liner, and ten 1.28-inch bolt holes,...
    29-05170015
    SKU:
    29-05170015
    Product Type:
    Frame & Chassis
    Material Options:
    Steel
    Make:
    Universal Items
    $433.99
    Qty in Cart: 0
    Price:
    $433.99
    Subtotal:
  • 16.50 X 7.00 Inch 23K Brake Shoe Box Kit

    16.50 X 7.00 Inch 23K Brake Shoe Box Kit

    AFTERMARKET

    $141.99
    23K Brake Shoe Box Kit- 16.50 X 7.00 InchAchieve reliable brake operation with this high-quality 16.50 X 7.00 Inch 23K Brake Shoe Box Kit. Kit components include dual-webbed brake shoes, 68 rivets,...
    29-05170016
    SKU:
    29-05170016
    Product Type:
    Frame & Chassis
    Position:
    Kit Full
    Make:
    Universal Items
    $141.99
    Qty in Cart: 0
    Price:
    $141.99
    Subtotal:
  • 16.5 Inch Brake Kit Replaces E2769HD, E4515QHD, S21183, 8000HD, R508001BK, 4515Q

    16.5 Inch Brake Kit Replaces E2769HD, E4515QHD, S21183, 8000HD, R508001BK, 4515Q

    AUTOMANN USA

    $14.90
    Brake Kit For Meritor 16.5 Inch Q BrakesKeep your truck stopping safely with this durable 16.5 Inch Brake Kit. Built for Meritor 16.5 Inch Q Brakes, it includes rollers, anchor pins, anchor pin...
    29-051700025
    SKU:
    29-051700025
    Product Type:
    Frame & Chassis
    Position:
    Kit Full
    Make:
    Universal Items
    $14.90
    Qty in Cart: 0
    Price:
    $14.90
    Subtotal:
  • Height Control Valve Replaces 59899000, 59899000L, 20QE4165AM, 20QE4165M, 25168691

    Height Control Valve Replaces 59899000, 59899000L, 20QE4165AM, 20QE4165M, 25168691

    AUTOMANN USA

    $55.99
    Height Control Valve- 90 PSI Working Pressure, 130 PSI Maximum PressureTake control of your truck's suspension with this high-quality Height Control Valve. Complete with dump valve and hose, it...
    29-05100586
    SKU:
    29-05100586
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $55.99
    Qty in Cart: 0
    Price:
    $55.99
    Subtotal:
  • Center Bushing Kit Replaces 30437, 30437000, 30437-000 For Hendrickson Suspension

    Center Bushing Kit Replaces 30437, 30437000, 30437-000 For Hendrickson Suspension

    AFTERMARKET

    $748.99
    Center Bushing KitRestore the integrity of your Hendrickson suspension with this high-quality Center Bushing Kit. Designed to replace 30437, 30437000, and 30437-000, it services two beams and...
    29-05100218
    SKU:
    29-05100218
    Position:
    Kit Full
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $748.99
    Qty in Cart: 0
    Price:
    $748.99
    Subtotal:
  • Torque Rod Frame Bracket Replaces 800057, 1515965C1, 5HR709 For Chalmers Suspension

    Torque Rod Frame Bracket Replaces 800057, 1515965C1, 5HR709 For Chalmers Suspension

    AFTERMARKET

    $209.99
    6.875 X 3.25 Inch Torque Rod Frame Bracket W/ 2.60 Inch Frame Hole & 0.80 Inch Bolt HolesReinforce your suspension system with this heavy-duty Torque Rod Frame Bracket for Chalmers suspension...
    29-05100295
    SKU:
    29-05100295
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $209.99
    Qty in Cart: 0
    Price:
    $209.99
    Subtotal:
  • Alignment Puck Replaces 90001395 For Neway ADZ Series Suspension

    Alignment Puck Replaces 90001395 For Neway ADZ Series Suspension

    AUTOMANN USA

    $12.72
    1.181 Inch ID X 3.937 Inch OD Alignment PuckMaintain perfect alignment in your ADZ Series suspension with this high-quality Alignment Puck for Neway, a direct replacement for 90001395. Featuring a 1...
    29-05100335
    SKU:
    29-05100335
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $12.72
    Qty in Cart: 0
    Price:
    $12.72
    Subtotal:
  • Vee Bracket Replaces E15176, E-15176, 58343000, 58343-000, 58343001, 58343-001 For Hendrickson Suspension

    Vee Bracket Replaces E15176, E-15176, 58343000, 58343-000, 58343001, 58343-001 For Hendrickson Suspension

    AFTERMARKET

    $133.99
    9.25 X 10.00 Inch Vee BracketDesigned for reliable rear suspension performance, this Vee Bracket is a high-quality replacement for E15176, E-15176, 58343000, 58343-000, 58343001, and 58343-001. With...
    29-05100192
    SKU:
    29-05100192
    Product Type:
    Frame & Chassis
    Height Options:
    10 Inch
    Width Options:
    9 1/4 Inch
    Make:
    Universal Items
    $133.99
    Qty in Cart: 0
    Price:
    $133.99
    Subtotal:
  • Restrictor Can Replaces 373020, 373028, E4688A, 1515963C1, R304688A, 5HR707

    Restrictor Can Replaces 373020, 373028, E4688A, 1515963C1, R304688A, 5HR707

    AFTERMARKET

    $205.99
    12.5 X 4.375 X 0.173 Inch Restrictor CanDeliver consistent suspension performance with this high-quality Restrictor Can, compatible with 20K, 300, 600, and 800 series setups. It's built for...
    29-05100235
    SKU:
    29-05100235
    Diameter Options:
    12 1/2 Inch
    Height Options:
    4 Inch
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $205.99
    Qty in Cart: 0
    Price:
    $205.99
    Subtotal:
  • Upper Rear Shock Bracket Replaces 4C4Z18192CA, 4C4Z-18192-CA, 57322004, 57322-004, 2036086C91, H57322004 For Hendrickson Suspension

    Upper Rear Shock Bracket Replaces 4C4Z18192CA, 4C4Z-18192-CA, 57322004, 57322-004, 2036086C91, H57322004 For Hendrickson Suspension

    AFTERMARKET

    $39.59
    Upper Rear Shock BracketKeep your Hendrickson-equipped truck performing at its best with this high-quality Upper Rear Shock Bracket. Engineered for mounting the rear shock absorber and securing the...
    29-05100255
    SKU:
    29-05100255
    Product Type:
    Frame & Chassis
    Position:
    Upper
    Make:
    Universal Items
    $39.59
    Qty in Cart: 0
    Price:
    $39.59
    Subtotal:
  • Saddle Assembly Replaces E10058, E-10058, 31017006, 31017-006, 31017109, 31017-109, 31017109L, 31017-109L, 3101719, 321021, 57143, R3010058 For Hendrickson Suspension

    Saddle Assembly Replaces E10058, E-10058, 31017006, 31017-006, 31017109, 31017-109, 31017109L, 31017-109L, 3101719, 321021, 57143, R3010058 For Hendrickson Suspension

    AFTERMARKET

    $577.99
    7.1875 Inch Saddle AssemblyWhen suspension reliability is essential, this Saddle Assembly provides durable support for Hendrickson 403 Series systems. Featuring a 7-3/16 inch height and spring pack...
    29-05100210
    SKU:
    29-05100210
    Product Type:
    Frame & Chassis
    Height Options:
    7 Inch
    Make:
    Universal Items
    $577.99
    Qty in Cart: 0
    Price:
    $577.99
    Subtotal:
  • Driver Side Frame Bracket Replaces S309606L For Hendrickson INTRAAX Suspension

    Driver Side Frame Bracket Replaces S309606L For Hendrickson INTRAAX Suspension

    AFTERMARKET

    $462.99
    10.00 Inch Frame Bracket W/ 0.50 Inch Bolt Hole- Driver SideHeavy-duty trucks demand heavy-duty components, and this Driver Side Frame Bracket delivers. Built for Hendrickson INTRAAX suspensions, it...
    29-05100208
    SKU:
    29-05100208
    Product Type:
    Frame & Chassis
    Position:
    Driver Side
    Make:
    Universal Items
    $462.99
    Qty in Cart: 0
    Price:
    $462.99
    Subtotal:
  • Bar Pin Assembly Replaces 12477594, E9326, E-9326, 3401388, 34013088, 34013-088, 34013088L, 34013-088L, 50160, 50160000, 50160-000, 1691140C91, 1685931C91, R309326 For Hendrickson, Meritor & Ridewell Suspension

    Bar Pin Assembly Replaces 12477594, E9326, E-9326, 3401388, 34013088, 34013-088, 34013088L, 34013-088L, 50160, 50160000, 50160-000, 1691140C91, 1685931C91, R309326 For Hendrickson, Meritor & Ridewell Suspension

    AFTERMARKET

    $152.99
    Bar Pin AssemblyThis premium Bar Pin Assembly is a perfect replacement for Hendrickson, Meritor, and Ridewell suspensions, covering OEM numbers 12477594, E9326, 3401388, and more. The kit includes a...
    29-05100160
    SKU:
    29-05100160
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $152.99
    Qty in Cart: 0
    Price:
    $152.99
    Subtotal:
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Adding your products to cart

Keeping your Kenworth T660 in top shape? This parts lineup has everything you need whether you're doing regular maintenance, repairs, or adding some personal style. The T660 is known for its power, efficiency, and driver comfort, and this collection of parts helps you keep it all running smooth. you'll find engine and drivetrain components, performance parts, and all the essentials to stay road-ready. Want to upgrade your rig's appearance? Check out the bumpers, grilles, lights, and mud flaps made to fit the T660 just right. Inside the cab, you'll find comfort-focused upgrades like new seats, storage solutions, and electrical components that make long hauls a little easier. From filters and hoses to full chrome trim kits, this lineup covers every corner of your truck front to back, inside and out. Whether you're swapping out worn parts or customizing your ride, this is your one-stop shop for Kenworth T660 parts and accessories. Built for durability. Designed for comfort. Backed by quality. Ready when you are.

Frequently Asked Questions About Kenworth T660 Parts

What years are Kenworth T660 parts compatible with, and are they interchangeable between model years?

Kenworth T660 parts are designed for trucks manufactured from 2008 to 2016. While many parts are interchangeable across these years, some components underwent updates. For example, bumpers from 2008-2012 models may have different mounting points than 2013-2016 versions. Always verify your specific OEM and model year before ordering to ensure proper fitment, especially for body panels, electrical components, and emission-related parts.

Are aftermarket bumpers as durable as OEM Kenworth bumpers, and what materials should I look for?

Quality aftermarket bumpers can match or exceed OEM durability when made from the right materials. Look for bumpers constructed from 16-gauge steel or thicker, with proper chrome plating or powder coating. Stainless steel options offer superior corrosion resistance. Avoid bumpers made from thin gauge steel (18-20 gauge) as they tend to bend easily and show wear quickly. Chrome should be triple-plated for longevity, and welds should be continuous rather than spot-welded.

What tools and skills are needed to install T660 bumpers and body parts myself?

Basic bumper installation requires a socket set (typically 3/4" and 7/8"), torque wrench, and potentially a helper due to weight. Most bumpers weigh 80-150 pounds. You'll need to disconnect fog lights and any sensors. Installation typically takes 2-4 hours. For hood and fender replacements, add panel alignment tools and expect 4-6 hours. If your truck has collision avoidance sensors or adaptive cruise control, professional calibration may be required after installation.

What's the difference between chrome, stainless steel, and painted finish options for T660 parts?

Chrome bumpers offer the classic shiny appearance but require regular polishing and can pit in harsh climates. Stainless steel provides excellent corrosion resistance with less maintenance but costs 20-30% more. Painted finishes are the most economical and can be color-matched to your truck, but may chip and require touch-ups. For winter operations or coastal areas, stainless steel offers the best long-term value despite higher initial cost.

How do I identify the correct replacement parts for my specific T660 configuration?

Start with your OEM number to determine exact model year and factory specifications. Key variations include standard vs. extended hood, day cab vs. sleeper configuration, and whether you have the aerodynamic package. Bumper widths vary from 18" to 20" depending on these factors. Check for additional features like fog light cutouts, tow hook provisions, and sensor mounting points. When ordering electrical components like headlights, verify if you have the multiplexed electrical system (common in 2013+ models).


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