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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.
  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • Brake Shoe Lock Screw Replaces 22139, B1213, E579A. 219297, 254253, S265D, S266D, S266D1, 34-1539 .M10HM130, 400103

    Brake Shoe Lock Screw Replaces 22139, B1213, E579A. 219297, 254253, S265D, S266D, S266D1, 34-1539 .M10HM130, 400103

    AUTOMANN USA

    $0.78
    0.938 Inch Brake Shoe Lock ScrewEnsure secure and reliable brake shoe installation with this high-quality Brake Shoe Lock Screw. Specifically engineered for Meritor drive axles measuring 18 Inch X 7...
    09-05170290
    SKU:
    09-05170290
    Length Options:
    1 Inch
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $0.78
    Qty in Cart: 0
    Price:
    $0.78
    Subtotal:
  • Cross Tube End Clip Replaces 8226-L26CP12A10, 48RU1856A, 267147C91

    Cross Tube End Clip Replaces 8226-L26CP12A10, 48RU1856A, 267147C91

    AUTOMANN USA

    $9.23
    Cross Tube End Clip For 1-5/8 Inch Tube* High Quality Cross Tube End Clip* TRW Friction Clamp Type* A/F: 0.937" Nut And Bolt With M16 - 1.5" Thread Included* 3 Inch Length* 1.687 Inch Diameter* Sold...
    09-05250086
    SKU:
    09-05250086
    Length Options:
    3 Inch
    Product Type:
    Frame & Chassis
    Diameter Options:
    1 1/2 Inch
    Make:
    Universal Items
    $9.23
    Qty in Cart: 0
    Price:
    $9.23
    Subtotal:
  • FREE SHIPPING OVER $249
    Black Plastic Air Line, 3/4 Inch OD - Sold Per Foot

    Black Plastic Air Line, 3/4 Inch OD - Sold Per Foot

    PARTS DISTRIBUTING

    $6.11
    Airline* High Quality Air Line * Made Of Plastic * 3/4 Inches* Sold By Foot* Warranty On Airline Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket...
    09-0508008
    SKU:
    09-0508008
    Truck Class:
    Heavy Duty
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $6.11
    Qty in Cart: 0
    Price:
    $6.11
    Subtotal:
  • King Pin Cap Replaces 001622, 1436610008, 143661-0008, 2HB777, 9HD828, R001622, R-001622

    King Pin Cap Replaces 001622, 1436610008, 143661-0008, 2HB777, 9HD828, R001622, R-001622

    AUTOMANN USA

    $16.52
    2.25 Inch King Pin CapProtect your king pin assembly with this high-quality King Pin Cap. Specifically engineered for 13K - 16K Westport axles, it features 2.0-inch, 20-thread construction, a 1...
    09-05200001
    SKU:
    09-05200001
    Diameter Options:
    2 1/4 Inch
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $16.52
    Qty in Cart: 0
    Price:
    $16.52
    Subtotal:
  • 15.25 Inch Hydraulic Disc Brake Rotor Replaces R4483020, E-14738

    15.25 Inch Hydraulic Disc Brake Rotor Replaces R4483020, E-14738

    AFTERMARKET

    $257.99
    15.25 Inch Hydraulic Disc RotorExperience superior braking efficiency with this 15.25 Inch Hydraulic Disc Brake Rotor. Its hat-shaped rotor design enhances heat dispersion and strength, while ten 0...
    09-05170235
    SKU:
    09-05170235
    Height Options:
    2 Inch
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $257.99
    Qty in Cart: 0
    Price:
    $257.99
    Subtotal:
  • 4-5-6 Inch Manual Slack Adjuster Replaces 278288, E2760, KN49020, R822011

    4-5-6 Inch Manual Slack Adjuster Replaces 278288, E2760, KN49020, R822011

    AFTERMARKET

    $67.99
    4-5-6 Inch Manual Slack AdjusterEngineered for heavy-duty air brake systems, this 4-5-6 Inch Manual Slack Adjuster is a direct replacement for 278288, E2760, KN49020, and R822011. With 4, 5, and...
    09-05170285
    SKU:
    09-05170285
    Position:
    Passenger Side
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $67.99
    Qty in Cart: 0
    Price:
    $67.99
    Subtotal:
  • Steel Adapter NPTF Male/NPSM F 45 Replaces 70643-1212, NPM12-NSFX12-45, G60142-1212, G601421212

    Steel Adapter NPTF Male/NPSM F 45 Replaces 70643-1212, NPM12-NSFX12-45, G60142-1212, G601421212

    AUTOMANN USA

    $14.31
    Swivel Steel Adapter, Thread 3/4 Inch-14Maintain reliable hydraulic connections with this high-quality Steel Adapter NPTF Male/NPSM F 45. Featuring a steel construction, a 0.720-inch inner diameter...
    09-02500249
    SKU:
    09-02500249
    Length Options:
    2 1/2 Inch
    Product Type:
    Cargo Control
    Material Options:
    Steel
    Diameter Options:
    3/4 Inch
    Make:
    Universal Items
    $14.31
    Qty in Cart: 0
    Price:
    $14.31
    Subtotal:
  • 16.930 Inch U-Shaped Air Disc Brake Rotor Replaces S-34172, S34172, D34172, D-34172

    16.930 Inch U-Shaped Air Disc Brake Rotor Replaces S-34172, S34172, D34172, D-34172

    AFTERMARKET

    $553.99
    16.930 Inch U-Shaped Air Disc RotorUpgrade your truck braking system with the 16.930 Inch U-Shaped Air Disc Brake Rotor. This high-quality U-shaped rotor is engineered to meet rigorous performance...
    09-05170236
    SKU:
    09-05170236
    Height Options:
    6 Inch
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $553.99
    Qty in Cart: 0
    Price:
    $553.99
    Subtotal:
  • Quick Release Valve Replaces ESL200001, RSL200001, 200001

    Quick Release Valve Replaces ESL200001, RSL200001, 200001

    AUTOMANN USA

    $40.75
    Sealco Type Quick Release ValveEnsure fast and reliable air system response with this high-quality Quick Release Valve. Engineered with a crack pressure of 0-1 PSI, it delivers precise and rapid air...
    09-05170162
    SKU:
    09-05170162
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $40.75
    Qty in Cart: 0
    Price:
    $40.75
    Subtotal:
  • Automatic Replacement Pawl Kit Replaces E11432, R801700

    Automatic Replacement Pawl Kit Replaces E11432, R801700

    AUTOMANN USA

    $17.80
    Meritor Type Replacement Pawl KitMaintain precise brake adjustment and reliable performance with this high-quality Automatic Replacement Pawl Kit, designed to replace E11432 and R801700. Specifically...
    09-05170223
    SKU:
    09-05170223
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $17.80
    Qty in Cart: 0
    Price:
    $17.80
    Subtotal:
  • Actuator Dump Pump- Non-Metering Replaces 30109902, ACM400, C3508DM, ASK49

    Actuator Dump Pump- Non-Metering Replaces 30109902, ACM400, C3508DM, ASK49

    AFTERMARKET

    $251.99
    4.200 X 1.630 X 2.490 Inch Actuator Dump Pump W/ 1/8 Inch NPT* High Quality Actuator Dump Pump* Non Metering* 1/8 Inch NPT* 4.20 Inch Height* 1.63 Inch Width* 2.49 Inch Length* Sold Individually*...
    09-02500205
    SKU:
    09-02500205
    Width Options:
    1 5/8 Inch
    Height Options:
    2 1/2 Inch
    Length Options:
    4 1/4 Inch
    Product Type:
    Cargo Control
    Make:
    Universal Items
    $251.99
    Qty in Cart: 0
    Price:
    $251.99
    Subtotal:
  • 16.929 Inch Hat Shaped Air Disc Brake Rotor Replaces K034497, M44D76642

    16.929 Inch Hat Shaped Air Disc Brake Rotor Replaces K034497, M44D76642

    AFTERMARKET

    $368.99
    16.929 Inch Air Disc Rotor* High Quality Air Disc Brake Rotor* Hat Shaped* (14) 0.580 Inch NOS Holes* (2) M14 - 1.5 Bolt Holes* 16.929 Inch Outer Disc Diameter* 4.122 Overall Height* 6.500 Inch Bolt...
    09-05170209
    SKU:
    09-05170209
    Height Options:
    4 Inch
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $368.99
    Qty in Cart: 0
    Price:
    $368.99
    Subtotal:
  • FREE SHIPPING OVER $249
    1/4 Inch OD Red Plastic Air Line - Sold Per Foot

    1/4 Inch OD Red Plastic Air Line - Sold Per Foot

    VELVAC

    $6.81
    1/4 Inch Outer Diameter Red Plastic Air LineDo you need red airline hose? 4 State Trucks carries 1/4 inch plastic airline tubing to meet SAE J844 and FMVSS requirements. With a maximum working...
    09-0508014
    SKU:
    09-0508014
    Truck Class:
    Heavy Duty
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $6.81
    Qty in Cart: 0
    Price:
    $6.81
    Subtotal:
  • Air Horn Solenoid Replaces 461274

    Air Horn Solenoid Replaces 461274

    AUTOMANN USA

    $27.22
    12/24 Volt Air Horn SolenoidMaintain powerful and reliable horn performance with this Air Horn Solenoid, engineered to operate on 12- or 24-volt systems. Featuring a 1/4-inch NPT port and a 1/8-inch...
    09-05130007
    SKU:
    09-05130007
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $27.22
    Qty in Cart: 0
    Price:
    $27.22
    Subtotal:
  • Uni-Crimp Hose Fitting, SAE 45 Female 45, 3/8 ID X 5/8 Inch - 18 X 2.86 Inch

    Uni-Crimp Hose Fitting, SAE 45 Female 45, 3/8 ID X 5/8 Inch - 18 X 2.86 Inch

    AUTOMANN USA

    $28.91
    45 Degree Female Uni-Crimp Hose Fitting Replaces 36777-0606, 367770606, UC-SFFX45-0606, UCSFFX450606* High Quality Hose Fitting* SAE 45 Female * 45 Degree Elbow* Uni-Crimp* Hose End: 3/8 Inch Inner...
    09-02500187
    SKU:
    09-02500187
    Product Type:
    Cargo Control
    Style Options:
    Elbow
    Degree Options:
    45
    Make:
    Universal Items
    $28.91
    Qty in Cart: 0
    Price:
    $28.91
    Subtotal:
  • FREE SHIPPING OVER $249
    Black Plastic Air Line, 5/8 Inch OD - Sold Per Foot

    Black Plastic Air Line, 5/8 Inch OD - Sold Per Foot

    VELVAC

    $2.26
    5/8 Inch Outer Diameter Black Plastic Air LineIf you are in the market for 5/8 inch nylon tubing, 4 State Trucks has what you need with this black plastic airline with a 30-day warranty from the date...
    09-0508007
    SKU:
    09-0508007
    Product Type:
    Air, Electrical, & Safety
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $2.26
    Qty in Cart: 0
    Price:
    $2.26
    Subtotal:
  • FREE SHIPPING OVER $249
    1/2 Inch OD Blue Nylon Air Line - Sold Per Foot

    1/2 Inch OD Blue Nylon Air Line - Sold Per Foot

    VELVAC

    $7.94
    1/2 Inch Outer Diameter Blue Nylon Air LineAre you working on an air brake system and need 1/2 inch blue tubing? 4 State Trucks can help with your airline hose needs, including this blue airline for...
    09-0508019
    SKU:
    09-0508019
    Truck Class:
    Heavy Duty
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $7.94
    Qty in Cart: 0
    Price:
    $7.94
    Subtotal:
  • 3 Way Double Solenoid Air Valve Replaces 2538-MM5-001. 2538MM5001

    3 Way Double Solenoid Air Valve Replaces 2538-MM5-001. 2538MM5001

    AFTERMARKET

    $495.99
    12V Double Solenoid Air ValveRestore professional-grade suspension performance with this 3 Way Double Solenoid Air Valve, built for Spartan chassis air dump systems. It features a 3-way, 2-position...
    09-02500111
    SKU:
    09-02500111
    Length Options:
    8 1/16 Inch
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $495.99
    Qty in Cart: 0
    Price:
    $495.99
    Subtotal:
  • Hydraulic Hose Fitting NPTF Male 1-1/4 ID X 1-1/4 Inch- 11-1/2

    Hydraulic Hose Fitting NPTF Male 1-1/4 ID X 1-1/4 Inch- 11-1/2

    AFTERMARKET

    $91.99
    1-1/4 ID X 1-1/4 Inch- 11-1/2 Male Hydraulic Hose FittingUpgrade your high-pressure hydraulic system with this durable NPTF Male Hydraulic Hose Fitting, designed for SR12 hose series. The 1-1/4 inch...
    09-02500212
    SKU:
    09-02500212
    Length Options:
    4 Inch
    Product Type:
    Cargo Control
    Make:
    Universal Items
    $91.99
    Qty in Cart: 0
    Price:
    $91.99
    Subtotal:
  • Hydraulic Hose Fitting Code 61 Flange Replaces 29320-1616, 293201616, SG-FL-1616, SGFL1616

    Hydraulic Hose Fitting Code 61 Flange Replaces 29320-1616, 293201616, SG-FL-1616, SGFL1616

    AFTERMARKET

    $62.99
    1 ID X 1.75 X 4.370 Inch Hydraulic Hose FittingEnsure smooth, leak-free operation in your hydraulic system with this Code 61 Flange Hydraulic Hose Fitting. Designed for SR12 hose series, it features...
    09-02500241
    SKU:
    09-02500241
    Diameter Options:
    1 1/2 Inch
    Length Options:
    4 1/4 Inch
    Product Type:
    Cargo Control
    Make:
    Universal Items
    $62.99
    Qty in Cart: 0
    Price:
    $62.99
    Subtotal:
  • Total: items /

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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