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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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  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • Bolt And Bushing Kit Replaces E2024, TK19169 For Reyco/Transpo Rear Suspension

    Bolt And Bushing Kit Replaces E2024, TK19169 For Reyco/Transpo Rear Suspension

    AUTOMANN USA

    $12.71
    Bolt And Bushing KitFrom routine maintenance to corrective suspension repairs, this Bolt and Bushing Kit provides a reliable solution for Reyco/Transpo applications. Featuring a Grade 8 cap screw,...
    29-05100194
    SKU:
    29-05100194
    Product Type:
    Frame & Chassis
    Position:
    Kit Full
    Make:
    Universal Items
    $12.71
    Qty in Cart: 0
    Price:
    $12.71
    Subtotal:
  • Lower Shock Bracket Kit Replaces 0058603, E16239, E-16239, 496902, 49690-2, 49690002, 49690-002, 57356000, 57356-000, 2036094C91, 20QK4124M, 25157549 For Hendrickson Suspension

    Lower Shock Bracket Kit Replaces 0058603, E16239, E-16239, 496902, 49690-2, 49690002, 49690-002, 57356000, 57356-000, 2036094C91, 20QK4124M, 25157549 For Hendrickson Suspension

    AFTERMARKET

    $83.99
    6.50 X 4.125 Inch Lower Shock Bracket Kit W/ 0.80 Inch Bolt HoleFrom fleet maintenance to individual repairs, this Lower Shock Bracket Kit delivers reliable results for Hendrickson suspension systems...
    29-05100191
    SKU:
    29-05100191
    Product Type:
    Frame & Chassis
    Position:
    Kit Full
    Make:
    Universal Items
    $83.99
    Qty in Cart: 0
    Price:
    $83.99
    Subtotal:
  • Load Spring Replaces E9410, E-11496, 49377, 49377000, 49377-000, 60879, 60879000, 60879-000, 60879000L, 60879-000L, 400060879000L, 4000-60879000L, 1138983, 8HS640, 1348, 21921 For Hendrickson Suspension

    Load Spring Replaces E9410, E-11496, 49377, 49377000, 49377-000, 60879, 60879000, 60879-000, 60879000L, 60879-000L, 400060879000L, 4000-60879000L, 1138983, 8HS640, 1348, 21921 For Hendrickson Suspension

    AFTERMARKET

    $213.99
    5.625/ 6.875 X 5.25 Inch Load Spring W/ 0.438 Inch Bolt HoleEnsure your Hendrickson suspension operates at peak performance with this premium Load Spring. Top plate length 5.625 inches, bottom plate...
    29-05100134
    SKU:
    29-05100134
    Width Options:
    6 5/8 Inch
    Product Type:
    Frame & Chassis
    Length Options:
    5 5/8 Inch
    Height Options:
    5 Inch
    Make:
    Universal Items
    $213.99
    Qty in Cart: 0
    Price:
    $213.99
    Subtotal:
  • Air Bag Bracket Replaces 3897, 6030, WC13583897, 2012301

    Air Bag Bracket Replaces 3897, 6030, WC13583897, 2012301

    AUTOMANN USA

    $19.08
    3.00 X 2.44 Inch Air Bag Bracket W/ 0.59 Inch Mounting HoleDesigned for durability and performance, this Air Bag Bracket ensures rear suspension stability on Reyco/Transpro-equipped trucks. It helps...
    29-05100195
    SKU:
    29-05100195
    Product Type:
    Frame & Chassis
    Width Options:
    3 Inch
    Make:
    Universal Items
    $19.08
    Qty in Cart: 0
    Price:
    $19.08
    Subtotal:
  • Front Of Rear Hanger Replaces E9386, E-9386, 4C4O5340NA, 4C4Z5340NA, 58425001, 58425-001, R309386 For Hendrickson Suspension

    Front Of Rear Hanger Replaces E9386, E-9386, 4C4O5340NA, 4C4Z5340NA, 58425001, 58425-001, R309386 For Hendrickson Suspension

    AFTERMARKET

    $179.99
    Front Of Rear Hanger For HAS, HFS, HTS SeriesPut stability back into your suspension system with this Front of Rear Hanger engineered for Hendrickson HAS, HFS, and HTS series applications. This...
    29-05100187
    SKU:
    29-05100187
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $179.99
    Qty in Cart: 0
    Price:
    $179.99
    Subtotal:
  • Load Spring Replaces 15002, E4685, 1515962C1, 25164984, 4QK3366, R304685, 5HR706 For Chalmers Suspension

    Load Spring Replaces 15002, E4685, 1515962C1, 25164984, 4QK3366, R304685, 5HR706 For Chalmers Suspension

    AFTERMARKET

    $293.99
    9.50 X 8.00 Inch Load Spring W/ 2 Inch Bolt SizeThis premium Load Spring is designed for Chalmers suspension systems, supporting 40K to 58K lbs series applications. Replacing OEM numbers 15002,...
    29-05100167
    SKU:
    29-05100167
    Height Options:
    8 Inch
    Diameter Options:
    9 1/2 Inch
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $293.99
    Qty in Cart: 0
    Price:
    $293.99
    Subtotal:
  • Auxiliary Spring Plate Replaces 59191, 591911, 59191000, 59191-000, 59191001, 59191-001, 2586425C1 For Hendrickson HAULMAXX Suspension

    Auxiliary Spring Plate Replaces 59191, 591911, 59191000, 59191-000, 59191001, 59191-001, 2586425C1 For Hendrickson HAULMAXX Suspension

    AFTERMARKET

    $53.99
    Auxiliary Spring PlatePut strength back into your suspension setup with this high-quality Auxiliary Spring Plate for Hendrickson HAULMAXX applications. This auxiliary plate helps support load balance...
    29-05100189
    SKU:
    29-05100189
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $53.99
    Qty in Cart: 0
    Price:
    $53.99
    Subtotal:
  • Restrictor Can Replaces 373029, E7758, 3507134C1, 25171445, 61QK432, R307758 For Chalmers Suspension

    Restrictor Can Replaces 373029, E7758, 3507134C1, 25171445, 61QK432, R307758 For Chalmers Suspension

    AFTERMARKET

    $180.99
    11.625 X 5.125 X 0.173 Inch Restrictor CanMaintain superior heavy-duty suspension performance with this Chalmers Restrictor Can. Built for 20K, 700 Series trucks with a high center of gravity, it is...
    29-05100161
    SKU:
    29-05100161
    Product Type:
    Frame & Chassis
    Height Options:
    5 Inch
    Diameter Options:
    11 1/2 Inch
    Make:
    Universal Items
    $180.99
    Qty in Cart: 0
    Price:
    $180.99
    Subtotal:
  • Adapter Sleeve Replaces 45163, 45163000, 526000C1, 90001002, 3082229 For Holland/Neway Suspension

    Adapter Sleeve Replaces 45163, 45163000, 526000C1, 90001002, 3082229 For Holland/Neway Suspension

    AUTOMANN USA

    $18.50
    2.656 X 2.50 X 0.781 Inch Adapter SleeveThis Holland/Neway Adapter Sleeve is a reliable replacement for OEM parts 45163, 45163000, 526000C1, 90001002, and 3082229. Measuring 2.656 inches overall...
    29-05100144
    SKU:
    29-05100144
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $18.50
    Qty in Cart: 0
    Price:
    $18.50
    Subtotal:
  • Spigot Cap Replaces 800055, E7768, 1515967C1, 800055CS1, R307768, 5HR711 For Chalmers Suspension

    Spigot Cap Replaces 800055, E7768, 1515967C1, 800055CS1, R307768, 5HR711 For Chalmers Suspension

    AFTERMARKET

    $10.03
    2.375/ 4.531 Inch Spigot CapEnsure durable and reliable suspension performance with this high-quality Spigot Cap for Chalmers suspension systems. Designed to replace 800055, E7768, 1515967C1,...
    29-05100162
    SKU:
    29-05100162
    Diameter Options:
    4 1/2 Inch
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $10.03
    Qty in Cart: 0
    Price:
    $10.03
    Subtotal:
  • Hanger W/ 0.91 Inch Offset Replaces E7569, 48598002, 48598-002, 57594002, 57594-002, 57594002L, 57594-002L, 25037416 For Hendrickson Suspension Systems

    Hanger W/ 0.91 Inch Offset Replaces E7569, 48598002, 48598-002, 57594002, 57594-002, 57594002L, 57594-002L, 25037416 For Hendrickson Suspension Systems

    AFTERMARKET

    $137.99
    Hanger W/ 0.91 Inch Offset Used On U/UE/RU/RUE/RT/RTE Series Drive AxleEngineered for precision and strength, this Hendrickson Hanger with a 0.91-inch offset fits U/UE/RU/RUE/RT/RTE series drive...
    29-05100132
    SKU:
    29-05100132
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $137.99
    Qty in Cart: 0
    Price:
    $137.99
    Subtotal:
  • Hanger Replaces E9635A, E-9635A, 470763, 47076-3, 47076003, 47076-003, 485983, 48598-3, 48598003, 48598-003, 57584003, 57584-003, 575943, 57594-3, 57594003, 57594-003, R309635A For Hendrickson Suspension Systems

    Hanger Replaces E9635A, E-9635A, 470763, 47076-3, 47076003, 47076-003, 485983, 48598-3, 48598003, 48598-003, 57584003, 57584-003, 575943, 57594-3, 57594003, 57594-003, R309635A For Hendrickson Suspension Systems

    AFTERMARKET

    $146.99
    Hanger Used On RT/RTE Series Drive AxleRestore heavy-duty suspension reliability with this Hendrickson Hanger for RT/RTE series drive axles. It is engineered with horizontal center-to-center...
    29-05100131
    SKU:
    29-05100131
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $146.99
    Qty in Cart: 0
    Price:
    $146.99
    Subtotal:
  • King Pin Kit Replaces 1008431, R200267 For Dana & Spicer Suspension Systems

    King Pin Kit Replaces 1008431, R200267 For Dana & Spicer Suspension Systems

    AFTERMARKET

    $296.99
    King Pin Kit W/ 1.625 X 9.20 Inch King Pin & Composite BushingsRestore your Dana & Spicer suspension system with this King Pin Kit. Kit includes single draw key king pins, composite bushings,...
    29-05090170
    SKU:
    29-05090170
    Diameter Options:
    1 1/2 Inch
    Length Options:
    9 1/16 Inch
    Product Type:
    Frame & Chassis
    Position:
    Kit Full
    Make:
    Universal Items
    $296.99
    Qty in Cart: 0
    Price:
    $296.99
    Subtotal:
  • King Pin Kit Replaces R201609 For Meritor Suspension Systems

    King Pin Kit Replaces R201609 For Meritor Suspension Systems

    AFTERMARKET

    $248.99
    King Pin Kit W/ 1.794 X 9.016 Inch King Pin & Composite BushingsRestore your Meritor suspension system with this comprehensive King Pin Kit. The kit includes opposite double draw key king pins,...
    29-05090064
    SKU:
    29-05090064
    Product Type:
    Frame & Chassis
    Position:
    Kit Full
    Make:
    Universal Items
    $248.99
    Qty in Cart: 0
    Price:
    $248.99
    Subtotal:
  • King Pin Kit Replaces 28345, ETN328345 For Eaton Suspension Systems

    King Pin Kit Replaces 28345, ETN328345 For Eaton Suspension Systems

    AFTERMARKET

    $430.99
    King Pin Kit W/ 1.873 X 9.06 Inch King Pin & Composite BushingsKeep your Eaton suspension operating efficiently with this high-quality King Pin Kit. Complete with single draw key king pins, composite...
    29-05090155
    SKU:
    29-05090155
    Diameter Options:
    2 Inch
    Product Type:
    Frame & Chassis
    Length Options:
    9 Inch
    Position:
    Kit Full
    Make:
    Universal Items
    $430.99
    Qty in Cart: 0
    Price:
    $430.99
    Subtotal:
  • King Pin Kit Replaces R203018, 7014505, E1460 For Dana & Spicer Suspension Systems

    King Pin Kit Replaces R203018, 7014505, E1460 For Dana & Spicer Suspension Systems

    AUTOMANN USA

    $354.99
    King Pin Kit W/ 1.87 X 9.07 Inch King Pin & Pre-Sized No-Ream Bi-Metal BushingsTake control of your heavy-duty suspension system with this Dana & Spicer King Pin Kit. This kit comes complete with...
    29-05090166
    SKU:
    29-05090166
    Diameter Options:
    2 Inch
    Product Type:
    Frame & Chassis
    Length Options:
    9 Inch
    Position:
    Kit Full
    Make:
    Universal Items
    $354.99
    Qty in Cart: 0
    Price:
    $354.99
    Subtotal:
  • King Pin Kit Replaces 331435 For Dana & Spicer Suspension Systems

    King Pin Kit Replaces 331435 For Dana & Spicer Suspension Systems

    AFTERMARKET

    $404.99
    King Pin Kit W/ 2.045 X 10.07 Inch King Pin & Composite BushingsEnsure smooth steering and reliable suspension with this King Pin Kit for Dana & Spicer systems, replacing part 331435. The kit...
    29-05090059
    SKU:
    29-05090059
    Product Type:
    Frame & Chassis
    Position:
    Kit Full
    Make:
    Universal Items
    $404.99
    Qty in Cart: 0
    Price:
    $404.99
    Subtotal:
  • King Pin Kit Replaces 328343 For Eaton Suspension Systems

    King Pin Kit Replaces 328343 For Eaton Suspension Systems

    AFTERMARKET

    $432.99
    King Pin Kit W/ 1.873 X 9.07 Inch King Pin & Bi-Metal BushingsThis high-quality Eaton King Pin Kit ensures smooth, reliable suspension performance. The kit includes single draw key king pins,...
    29-05090154
    SKU:
    29-05090154
    Product Type:
    Frame & Chassis
    Diameter Options:
    1 1/2 Inch
    Length Options:
    9 Inch
    Make:
    Universal Items
    $432.99
    Qty in Cart: 0
    Price:
    $432.99
    Subtotal:
  • King Pin Kit Replaces 700040, 700040-KIT For Ingersoll/IMT Axle Kits

    King Pin Kit Replaces 700040, 700040-KIT For Ingersoll/IMT Axle Kits

    AFTERMARKET

    $481.99
    King Pin Kit W/ 2.248 X 11.30 Inch King Pin & Bronze BushingsKeep your Ingersoll or IMT axle system performing at its best with this King Pin Kit. Includes opposite double draw key king pins, bronze...
    29-05090055
    SKU:
    29-05090055
    Position:
    Kit Full
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $481.99
    Qty in Cart: 0
    Price:
    $481.99
    Subtotal:
  • King Pin Kit Replaces 328347, ETN328347 For Dana & Spicer Suspension Systems

    King Pin Kit Replaces 328347, ETN328347 For Dana & Spicer Suspension Systems

    AFTERMARKET

    $315.99
    King Pin Kit W/ 1.873 X 9.07 Inch King Pin & Bi-Metal BushingsBuilt for long-lasting performance, this King Pin Kit is a perfect solution for Dana & Spicer suspension systems. It includes same side...
    29-05090061
    SKU:
    29-05090061
    Product Type:
    Frame & Chassis
    Position:
    Kit Full
    Make:
    Universal Items
    $315.99
    Qty in Cart: 0
    Price:
    $315.99
    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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