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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
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  • Price
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  • Stainless Steel Bunk Light Adapter Kit Without Lights

    Stainless Steel Bunk Light Adapter Kit Without Lights

    SHIFT PRODUCTS

    $31.78
    Bunk Light Adapter Kit Without LightsEnsure your truck's bunk lights are securely mounted with this Stainless Steel Bunk Light Adapter Kit, made for red watermelon lenses. The stainless steel backing...
    09-16100176
    SKU:
    09-16100176
    Color:
    Red
    Style Options:
    Watermelon
    Material Options:
    Stainless Steel
    Light Options:
    Without Lights
    Product Type:
    Lighting
    Make:
    Universal Items
    $31.78
    Qty in Cart: 0
    Price:
    $31.78
    Subtotal:
  • FREE SHIPPING OVER $249
    Stainless Steel Angled Down Mirror Bracket For Stud Mount Watermelon Light

    Stainless Steel Angled Down Mirror Bracket For Stud Mount Watermelon Light

    JML KUSTOMS

    $142.99
    Angled Down Style Mirror Bracket For Stud Mount Watermelon LightOptimize your truck's mirror lighting with this durable Stainless Steel Angled Down Mirror Bracket, designed for a single stud-mount...
    09-161000057
    SKU:
    09-161000057
    Material Options:
    Stainless Steel
    Light Options:
    Without Lights
    Product Type:
    Lighting
    Make:
    Universal Items
    $142.99
    Qty in Cart: 0
    Price:
    $142.99
    Subtotal:
  • Chrome Plastic 2-1/2 Inch Trailer Light Housing

    Chrome Plastic 2-1/2 Inch Trailer Light Housing

    LIFETIME NUT COVERS

    $11.01
    Chrome 2-1/2 Inch Trailer Light HousingProtect and stylize your trailer lights with this high-quality Chrome Plastic 2-1/2 Inch Trailer Light Housing. Made from chrome-plated ABS plastic, it resists...
    09-161000051
    SKU:
    09-161000051
    Material Options:
    Plastic/Poly
    Finish Options:
    Chrome-Plated
    Width Options:
    2 1/2 Inch
    Product Type:
    Lighting
    Location:
    Made In USA
    Make:
    Universal Items
    $11.01
    Qty in Cart: 0
    Price:
    $11.01
    Subtotal:
  • Stainless Steel Angle Down Turn Signal Bracket With Watermelon Light Hole

    Stainless Steel Angle Down Turn Signal Bracket With Watermelon Light Hole

    JML KUSTOMS

    $61.99
    Angle Down Turn Signal Bracket With Watermelon Light HoleUpgrade your truck's lighting setup with this high-quality Stainless Steel Angle Down Turn Signal Bracket with Watermelon Light Hole. Designed...
    09-161000050
    SKU:
    09-161000050
    Product Type:
    Exterior
    Light Options:
    Without Lights
    Style Options:
    Angled
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $61.99
    Qty in Cart: 0
    Price:
    $61.99
    Subtotal:
  • Gray Poly Single Axle Fender

    Gray Poly Single Axle Fender

    SHIFT PRODUCTS

    $163.99
    Poly Single Axle Fender- GrayProtect your truck with this high-quality Gray Poly Single Axle Fender. Made from tough polycarbonate, it can withstand extreme hot and cold temperatures without cracking...
    09-110501050
    SKU:
    09-110501050
    Material Options:
    Plastic/Poly
    Color:
    Gray
    Product Type:
    Rear Fenders
    Make:
    Universal Items
    $163.99
    Qty in Cart: 0
    Price:
    $163.99
    Subtotal:
  • Stainless Steel Hardware For Fender Plates

    Stainless Steel Hardware For Fender Plates

    WTI FENDERS

    $3.87
    Hardware For Fender Plates- 3-3/8 X 1.25 Inch Bolt, 3-3/8 Inch Fender Washer, 3-3/8 Inch Std. Washer, 3-Nylock NutSecure your fender plates with this high-quality Stainless Steel Hardware Kit. This...
    09-111000049
    SKU:
    09-111000049
    Product Type:
    Rear Fenders
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    $3.87
    Qty in Cart: 0
    Price:
    $3.87
    Subtotal:
  • PP1 Type Dash Control Valve Replaces 287600, 287600N, 287600X, BW287600N, 1681044C91, R955287600, 034014

    PP1 Type Dash Control Valve Replaces 287600, 287600N, 287600X, BW287600N, 1681044C91, R955287600, 034014

    AUTOMANN USA

    $29.68
    Push- Pull Dash Control ValveEnsure accurate air pressure control with this PP1 Type Dash Control Valve, engineered for heavy-duty trucks and commercial vehicles. It includes two 1/4-inch NPT...
    09-15010119
    SKU:
    09-15010119
    Product Type:
    Interior
    Rating:
    40 PSI
    Make:
    Universal Items
    $29.68
    Qty in Cart: 0
    Price:
    $29.68
    Subtotal:
  • 12V Solenoid Air Valve

    12V Solenoid Air Valve

    AFTERMARKET

    $72.99
    3.313 Inch 12V Solenoid Air ValveReliable air control starts with this 12V Solenoid Air Valve, built for heavy-duty trucks and trailers. Featuring two 1/8 NPT ports for flexible connections and a 0...
    09-07120006
    SKU:
    09-07120006
    Length Options:
    3 1/4 Inch
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $72.99
    Qty in Cart: 0
    Price:
    $72.99
    Subtotal:
  • Brake Shoe Washer 1.30 ID X 1.875 OD Replaces 32180, 820182, B-2019, E1113, 1229B1848, 1229G2971, 1229Q433, 35-1580

    Brake Shoe Washer 1.30 ID X 1.875 OD Replaces 32180, 820182, B-2019, E1113, 1229B1848, 1229G2971, 1229Q433, 35-1580

    AUTOMANN USA

    $0.56
    1.30 ID X 1.875 OD Brake Shoe WasherFor reliable brake shoe alignment and secure assembly, trust this high-quality Brake Shoe Washer. Measuring 1.30 inches inner diameter, 1.875 inches outer...
    09-05170287
    SKU:
    09-05170287
    Diameter Options:
    1 1/2 Inch
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $0.56
    Qty in Cart: 0
    Price:
    $0.56
    Subtotal:
  • Lincoln Chrome 6-5 X 36 Inch Chrome Miter Exhaust Stack

    Lincoln Chrome 6-5 X 36 Inch Chrome Miter Exhaust Stack

    LINCOLN CHROME

    $258.99
    6-5 X 36 Inch Miter Exhaust Stack By Lincoln ChromeBoost your truck's exhaust efficiency with this Lincoln Chrome 6-5 X 36 Inch Chrome Miter Exhaust Stack. Featuring a mitered top and plain end, it's...
    09-08653611
    SKU:
    09-08653611
    Location:
    Made In USA
    Finish Options:
    Chrome-Plated
    Height Options:
    36 Inch
    Product Type:
    Exhaust
    Style Options:
    Miter Cut
    Material Options:
    Steel
    Make:
    Universal Items
    $258.99
    Qty in Cart: 0
    Price:
    $258.99
    Subtotal:
  • E7 Type Brake Valve Replaces 287440

    E7 Type Brake Valve Replaces 287440

    AFTERMARKET

    $180.99
    E7 Type Brake ValveOptimize your truck's air brake system with this E7 Type Brake Valve, a replacement for 287440 designed for dual circuit foot operation. Featuring O-ring sealed flange ports, three...
    09-05170224
    SKU:
    09-05170224
    Make:
    Universal Items
    Product Type:
    Air, Electrical, & Safety
    $180.99
    Qty in Cart: 0
    Price:
    $180.99
    Subtotal:
  • Fan Clutch Solenoid Valve- 2 Pin

    Fan Clutch Solenoid Valve- 2 Pin

    AFTERMARKET

    $92.99
    Fan Clutch Solenoid ValveEnsure precise fan clutch operation and reliable engine cooling with this high-quality 2-Pin Fan Clutch Solenoid Valve. Designed for heavy-duty trucks, it features a 2-pin...
    09-07120007
    SKU:
    09-07120007
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $92.99
    Qty in Cart: 0
    Price:
    $92.99
    Subtotal:
  • BESTfit Camshaft Bushing 1.50 ID X 2.469 OD X 1.75 Inch Replaces M10WJ237X, E9792A, R617015

    BESTfit Camshaft Bushing 1.50 ID X 2.469 OD X 1.75 Inch Replaces M10WJ237X, E9792A, R617015

    BESTFIT TRUCK PARTS

    $8.35
    1.50 ID X 2.469 OD X 1.75 Inch Camshaft Bushing By BESTfitDepend on this BESTfit Camshaft Bushing to provide long-lasting, low-maintenance performance for your axles. Replacement for M10WJ237X,...
    09-05170150
    SKU:
    09-05170150
    Diameter Options:
    2 1/2 Inch
    Length Options:
    1 3/4 Inch
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $8.35
    Qty in Cart: 0
    Price:
    $8.35
    Subtotal:
  • 12V Fan Clutch Solenoid Valve- 2 Pin

    12V Fan Clutch Solenoid Valve- 2 Pin

    AFTERMARKET

    $91.99
    12V Fan Clutch Solenoid ValveMaintain precise engine cooling and optimal fan clutch performance with this high-quality 12V 2-Pin Fan Clutch Solenoid Valve. Designed for heavy-duty truck applications,...
    09-07120008
    SKU:
    09-07120008
    Length Options:
    3 1/4 Inch
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $91.99
    Qty in Cart: 0
    Price:
    $91.99
    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:
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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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