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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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  • Quantity
  • Price
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  • Roadworks Stainless Steel Rear Center Panel W/ 3 Crew Light Holes & 4 Inch Round Light Holes

    Roadworks Stainless Steel Rear Center Panel W/ 3 Crew Light Holes & 4 Inch Round Light Holes

    ROADWORKS

    $215.26
    Stainless Steel Rear Center Panel W/ Bezels & License Plate Holes By Roadworks* High Quality Rear Center Panel* Made Of 14 Gauge 430 Stainless Steel* Includes:  - (2) Round 4 Inch Light Holes (Lights...
    09-011100100
    SKU:
    09-011100100
    Product Type:
    Lighting
    Shape Options:
    Rectangular
    Light Options:
    Without Lights
    Size Options:
    14 Gauge
    Material Options:
    Stainless Steel
    Location:
    Made In USA
    Make:
    Universal Items
    $215.26
    Qty in Cart: 0
    Price:
    $215.26
    Subtotal:
  • Roadworks 304 Stainless Steel Rear Light Bar W/ 1 Round 4 Inch Stop, Turn, Tail & 2 Super 21 Light Holes

    Roadworks 304 Stainless Steel Rear Light Bar W/ 1 Round 4 Inch Stop, Turn, Tail & 2 Super 21 Light Holes

    ROADWORKS

    $493.99
    304 Stainless Steel Rear Light Bar W/ 1 Round 4 Inch Stop, Turn, Tail & 2 Super 21 Light Holes By Roadworks* High Quality Rear Light Bar* Made Of 304 Stainless Steel* Includes:  - (2) Rear Light...
    09-011287
    SKU:
    09-011287
    Product Type:
    Bumpers
    Material Options:
    Stainless Steel
    Light Options:
    Without Lights
    Location:
    Made In USA
    Make:
    Universal Items
    $493.99
    Qty in Cart: 0
    Price:
    $493.99
    Subtotal:
  • Minimizer Poly Texas Double Single Axle Style Fender Kit W/ Light Box & Bracket Options For 24.5 Dual Tires

    Minimizer Poly Texas Double Single Axle Style Fender Kit W/ Light Box & Bracket Options For 24.5 Dual Tires

    MINIMIZER

    $761.99 - $2,417.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksMinimizer Black Diamond Poly Texas Double Single Axle Style Fender Kit W/ Plastic Brackets & 23 Inch...
    PPR_301152
    SKU:
    PPR_301152
    Truck Class:
    Heavy Duty
    Product Type:
    Rear Fenders
    Make:
    Universal Items
    Height Options:
    23 Inch
    Material Options:
    Plastic/Poly
    Ready To Ship:
    Yes
    $761.99 - $2,417.99
    Qty in Cart: 0
    Price:
    $761.99 - $2,417.99
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  • Minimizer Poly Texas Double Multiple Axle Fender W/ Lightbox Option For 24.5 Dual Tires

    Minimizer Poly Texas Double Multiple Axle Fender W/ Lightbox Option For 24.5 Dual Tires

    MINIMIZER

    $328.99 - $655.99
    Choose Option(s) to see description.Fitment** Designed for 24.5 Dual Tires **Minimizer White High Bar Texas Double Single Axle Fender W/ Light Box 51 Inch & 23 Inch Drop For 24.5 Dual TiresWhite High...
    PPR_301151
    SKU:
    PPR_301151
    Product Type:
    Rear Fenders
    Height Options:
    23 Inch
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    Truck Class:
    Heavy Duty
    Ready To Ship:
    Yes
    $328.99 - $655.99
    Qty in Cart: 0
    Price:
    $328.99 - $655.99
    Subtotal:
  • LC Stainless Steel Short 30 Exhaust Stack

    LC Stainless Steel Short 30 Exhaust Stack

    LINCOLN CHROME

    $335.99 - $984.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksLC 6-5 X 24 Chrome Short 30 Exhaust Stack6-5 X 24 Inch Short 30 Exhaust Stack By Lincoln Chrome* High...
    PPR_301138
    SKU:
    PPR_301138
    Product Type:
    Exhaust
    Diameter Options:
    6 To 5 Inch
    Height Options:
    120 Inch
    Location:
    Made In USA
    Finish Options:
    Polished
    Height Options:
    84 Inch
    Diameter Options:
    8 Inch
    Height Options:
    72 Inch
    Diameter Options:
    7 Inch
    Style Options:
    Short 30 Turn
    Height Options:
    24 Inch
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    $335.99 - $984.99
    Qty in Cart: 0
    Price:
    $335.99 - $984.99
    Subtotal:
  • Limited Quantity Available
    Minimizer Poly Work Horse Single Replacement Fender Section

    Minimizer Poly Work Horse Single Replacement Fender Section

    MINIMIZER

    $211.99 - $789.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksMinimizer Red Poly Work Horse Single Replacement FenderSingle Replacement Red Poly Fender* High Quality...
    PPR_301140
    SKU:
    PPR_301140
    Color:
    Green
    Color:
    Black
    Finish Options:
    Paintable
    Color:
    Gray
    Color:
    Silver
    Material Options:
    Plastic/Poly
    Color:
    White
    Length Options:
    50 Inch
    Type Options:
    Tandum Fender
    Location:
    Made In USA
    Style Options:
    Work Horse Style
    Color:
    Red
    Truck Class:
    Heavy Duty
    Height Options:
    12 Inch
    Make:
    Universal Items
    Product Type:
    Rear Fenders
    Width Options:
    26 Inch
    Ready To Ship:
    Yes
    $211.99 - $789.99
    Qty in Cart: 0
    Price:
    $211.99 - $789.99
    Subtotal:
  • FREE SHIPPING
    Superior Seating Stainless Steel Seat Adapter Plate For Bostrom Seats

    Superior Seating Stainless Steel Seat Adapter Plate For Bostrom Seats

    SUPERIOR SEATING

    $97.99
    Stainless Steel Seat Adapter Plate By Superior SeatingTheSuperior Seating Stainless Steel Seat Adapter Plate for Bostrom Seatsprovides a durable mounting solution for compatible Bostrom truck seats...
    09-192000231
    SKU:
    09-192000231
    Product Type:
    Seats
    Material Options:
    Stainless Steel
    Location:
    Made In USA
    Make:
    Universal Items
    $97.99
    Qty in Cart: 0
    Price:
    $97.99
    Subtotal:
  • FREE SHIPPING
    Superior Seating Stainless Steel Sears Seat Adapter Plate

    Superior Seating Stainless Steel Sears Seat Adapter Plate

    SUPERIOR SEATING

    $97.99
    Stainless Steel Sears Seat Adapter Plate By Superior SeatingTheSuperior Seating Stainless Steel Sears Seat Adapter Plateprovides a durable mounting solution for compatibleSears truck seats. Made from...
    09-192000233
    SKU:
    09-192000233
    Product Type:
    Seats
    Material Options:
    Stainless Steel
    Location:
    Made In USA
    Make:
    Universal Items
    $97.99
    Qty in Cart: 0
    Price:
    $97.99
    Subtotal:
  • FREE SHIPPING
    Superior Seating Stainless Steel Seat Adapter Plate W/ Seat Slides

    Superior Seating Stainless Steel Seat Adapter Plate W/ Seat Slides

    SUPERIOR SEATING

    $187.99
    Seat Adapter Plate Stainless Steel W/ Seat Slides By Superior SeatingTheSuperior Seating Stainless Steel Seat Adapter Plate with Seat Slidesprovides a durable mounting solution for compatibleNational...
    09-192000232
    SKU:
    09-192000232
    Product Type:
    Seats
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    $187.99
    Qty in Cart: 0
    Price:
    $187.99
    Subtotal:
  • Horn Button W/ 3-Hole Bolt Pattern by Steering Creations

    Horn Button W/ 3-Hole Bolt Pattern by Steering Creations

    STEERING CREATIONS

    $24.47 - $28.55
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksSCI Chrome Button Black Textured Bezel For Steering Creations Steering Wheels W/ 3 Hole Bolt Pattern...
    PPR_301134
    SKU:
    PPR_301134
    Color:
    Black
    Truck Class:
    Heavy Duty
    Product Type:
    Interior
    Make:
    Universal Items
    $24.47 - $28.55
    Qty in Cart: 0
    Price:
    $24.47 - $28.55
    Subtotal:
  • FREE SHIPPING OVER $249
    Stainless Steel License Plate Holder W/ Hinges

    Stainless Steel License Plate Holder W/ Hinges

    UNITED PACIFIC

    $49.01 - $61.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksStainless Steel 1 License Plate Holder W/ HingeHinged Stainless Steel License Plate Holder* High...
    PPR_301133
    SKU:
    PPR_301133
    Truck Class:
    Universal
    Finish Options:
    Polished
    Material Options:
    Stainless Steel
    Product Type:
    Bumpers
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $49.01 - $61.99
    Qty in Cart: 0
    Price:
    $49.01 - $61.99
    Subtotal:
  • P1 LED Marker And Clearance Light W/ Packard Plug

    P1 LED Marker And Clearance Light W/ Packard Plug

    PHOENIX DESIGN

    $17.78 - $20.39
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksRed LED Red Lens P1 Light Kit W/ Packard Plug, Chrome Plastic BezelRed LED Red Lens P1 Light Kit W/...
    PPR_301130
    SKU:
    PPR_301130
    Location:
    Made In USA
    Truck Class:
    Universal
    Color:
    Amber
    Material Options:
    Plastic/Poly
    Finish Options:
    Chrome-Plated
    Color:
    Red
    Truck Class:
    Heavy Duty
    Product Type:
    Lighting
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $17.78 - $20.39
    Qty in Cart: 0
    Price:
    $17.78 - $20.39
    Subtotal:
  • Stainless Steel Blank Switchblade Light Bar

    Stainless Steel Blank Switchblade Light Bar

    ROADWORKS

    $194.99 - $217.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks11.25 Inch Stainless Steel Blank Switchblade Light Bar11.25 Inch Blank Switchblade Light BarGive your...
    PPR_301137
    SKU:
    PPR_301137
    Light Options:
    Without Lights
    Location:
    Made In USA
    Height Options:
    11 Inch
    Product Type:
    Lighting
    Height Options:
    17 1/2 Inch
    Make:
    Universal Items
    $194.99 - $217.99
    Qty in Cart: 0
    Price:
    $194.99 - $217.99
    Subtotal:
  • 12V Or 24V Halogen Capsule H1, H3 Or H4 Bulb W/ White/Clear Lens

    12V Or 24V Halogen Capsule H1, H3 Or H4 Bulb W/ White/Clear Lens

    AUTOMANN USA

    $3.29 - $5.50
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks12V Halogen Capsule H1 Replaces H155WHalogen Capsule- 55W, 1550 LumensKeep your truck's lighting sharp...
    PPR_301136
    SKU:
    PPR_301136
    Color:
    White
    Product Type:
    Lighting
    Make:
    Universal Items
    $3.29 - $5.50
    Qty in Cart: 0
    Price:
    $3.29 - $5.50
    Subtotal:
  • FREE SHIPPING OVER $249
    Stainless Steel License Plate Holder W/ Optional Holder Size

    Stainless Steel License Plate Holder W/ Optional Holder Size

    UNITED PACIFIC

    $55.99 - $77.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Trucks and TrailersStainless Steel 1 License Plate Holder - 7.5 X 18.25 Inch7.5 X 18.25 Inch SS 1 License Plate Holder* High...
    PPR_301132
    SKU:
    PPR_301132
    Truck Class:
    Universal
    Finish Options:
    Polished
    Material Options:
    Stainless Steel
    Product Type:
    Bumpers
    Make:
    Universal Items
    $55.99 - $77.99
    Qty in Cart: 0
    Price:
    $55.99 - $77.99
    Subtotal:
  • FREE SHIPPING OVER $249
    P3 LED Bullet Pigtail Light

    P3 LED Bullet Pigtail Light

    PHOENIX DESIGN

    $13.25 - $15.08
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksAmber P3 LED Bullet Pigtail Light Amber LensBullet Pigtail Light* High Quality Bullet Pigtail Light* P3...
    PPR_301131
    SKU:
    PPR_301131
    Material Options:
    Plastic/Poly
    Truck Class:
    Universal
    Color:
    Amber
    Product Type:
    Lighting
    Color:
    Red
    Shape Options:
    Oval
    Finish Options:
    Chrome-Plated
    Style Options:
    Bullet
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $13.25 - $15.08
    Qty in Cart: 0
    Price:
    $13.25 - $15.08
    Subtotal:
  • On Sale
    Limited Quantity Available
    Chrome Aluminum Tractor Or Trailer Air Valve Knob With SS Plate - Screw On

    Chrome Aluminum Tractor Or Trailer Air Valve Knob With SS Plate - Screw On

    UNITED PACIFIC

    $11.05 - $20.65
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksChrome Aluminum Tractor Air Valve Knob With SS Plate - Screw OnChrome Air Valve Knob With Stainless...
    PPR_301126
    SKU:
    PPR_301126
    Truck Class:
    Heavy Duty
    Material Options:
    Aluminum
    Finish Options:
    Chrome-Plated
    Product Type:
    Interior
    Make:
    International
    Make:
    Volvo
    Make:
    Freightliner
    Make:
    Ford
    Make:
    Mack
    Make:
    Kenworth
    Make:
    GMC
    Make:
    Peterbilt
    Ready To Ship:
    Yes
    Type Options:
    Thread On
    Location:
    Made In USA
    Make:
    Universal Items
    $11.05 - $20.65
    Qty in Cart: 0
    Price:
    $11.05 - $20.65
    Subtotal:
  • Merritt Aluminum Full Fenders W/ Style & Height Options

    Merritt Aluminum Full Fenders W/ Style & Height Options

    MERRITT

    $926.99 - $932.99
    Protect your wheels and elevate your truck's profile with the Merritt 105 25 29 Inch Smooth Aluminum or 105 x 25 x 29 Inch Ribbed Aluminum Full Fenders, crafted from high-quality aluminum for...
    PPR_301124
    SKU:
    PPR_301124
    Finish Options:
    Smooth
    Height Options:
    24 Inch
    Material Options:
    Aluminum
    Product Type:
    Rear Fenders
    Type Options:
    Full
    Length Options:
    105 Inch
    Width Options:
    25 Inch
    Truck Class:
    Heavy Duty
    Location:
    Made In USA
    Truck Class:
    Universal
    Make:
    Universal Items
    Ready To Ship:
    Yes
    Type Options:
    Full Fender
    $926.99 - $932.99
    Qty in Cart: 0
    Price:
    $926.99 - $932.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Square LED Work Lamp W/ 9 White Diode LEDs , 4.5 X 4.5 Inch

    Square LED Work Lamp W/ 9 White Diode LEDs , 4.5 X 4.5 Inch

    TRUX ACCESSORIES

    $30.99
    LED Work Lamp Square W/ Black Aluminum Housing, Stainless Steel Mounting Bracket & Clear Lens* High Quality LED Work Lamp* Square* Spot Beam* 2200 Raw Lumens* 1800 Effective Lumens* 10-30 Volt* 1.5...
    09-16091019
    SKU:
    09-16091019
    Product Type:
    Lighting
    Width Options:
    4 1/2 Inch
    Lumens:
    1001 to 2000 Lumens
    Length Options:
    1 3/4 Inch
    Height Options:
    5 1/2 Inch
    Color:
    White/Clear
    Style Options:
    Black Housing
    Shape Options:
    Square
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    $30.99
    Qty in Cart: 0
    Price:
    $30.99
    Subtotal:
  • 15 Inch Dual Cup Holder W/ Stainless Steel Center & Mounting Hardware

    15 Inch Dual Cup Holder W/ Stainless Steel Center & Mounting Hardware

    SPARETIME FAB

    $295.00
    Dual Cup Holder Plastic & Stainless Steel W/ Mounting Hardware* High Quality Dual Cup Holder* Stainless Steel Center* Durable Plastic Top And Bottom* Includes Mounting Hardware* Dimensions:  - 15.000...
    09-1504017
    SKU:
    09-1504017
    Product Type:
    Interior
    Height Options:
    10 Inch
    Width Options:
    6 Inch
    Color:
    Black
    Material Options:
    Stainless Steel
    Location:
    Made In USA
    Length Options:
    15 Inch
    Make:
    Universal Items
    $295.00
    Qty in Cart: 0
    Price:
    $295.00
    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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