null

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
  • AirDog Fuel Pressure Splice W/ 1/8 Inch NPT Center Fitting Port

    AirDog Fuel Pressure Splice W/ 1/8 Inch NPT Center Fitting Port

    AIRDOG HD

    $13.00
    Fuel Pressure Splice W/ 1/8 Inch NPT Center Fitting Port By AirDog* High Quality Fuel Pressure Splice* Designed To Go Into A 1/2 Inch Fuel Hose* Includes:  - 1/8 Inch NPT Center Fitting Port* Sold...
    09-07030172
    SKU:
    09-07030172
    Product Type:
    Engine Parts
    Location:
    Made In USA
    Make:
    Universal Items
    $13.00
    Qty in Cart: 0
    Price:
    $13.00
    Subtotal:
  • Air Dryer Blow Off Diverter Kit Flexible Molded Rubber W/ Stainless Steel Hose Clamp

    Air Dryer Blow Off Diverter Kit Flexible Molded Rubber W/ Stainless Steel Hose Clamp

    4 STATE TRUCKS

    $9.99
    Flexible Molded Rubber Air Dryer Blow Off Diverter Kit W/ Stainless Steel Hose Clamp* High Quality Air Dryer Blow-Off Diverter Kit* Made Of Flexible Molded Rubber* Heat, Moisture, Road Chemicals, And...
    09-05170519K
    SKU:
    09-05170519K
    Position:
    Kit Full
    Location:
    Made In USA
    Material Options:
    Rubber
    Product Type:
    Lighting
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $9.99
    Qty in Cart: 0
    Price:
    $9.99
    Subtotal:
  • Aluminum Deck Plate 9 X 23.5 X 1.25 Inch W/ Mounting Kit & Hardware

    Aluminum Deck Plate 9 X 23.5 X 1.25 Inch W/ Mounting Kit & Hardware

    ICONIC

    $248.99
    9 X 23.5 X 1.25 Inch Aluminum Deck Plate W/ Mounting Kit & Hardware* High Quality Deck Plate* Made Of 1/8 Inch Aluminum* Tread Grip Punched Design* Includes:  - (1) Deck Plate  - Mounting Kit  -...
    09-05030108
    SKU:
    09-05030108
    Location:
    Made In USA
    Width Options:
    32 1/2 Inch
    Position:
    Kit Full
    Height Options:
    1 1/4 Inch
    Finish Options:
    Treaded
    Material Options:
    Aluminum
    Length Options:
    9 Inch
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $248.99
    Qty in Cart: 0
    Price:
    $248.99
    Subtotal:
  • Smooth Aluminum Big Mouth Step Box Toolbox 36 X 24 X 29.13 Inch W/ 1 Stainless Steel T Handle

    Smooth Aluminum Big Mouth Step Box Toolbox 36 X 24 X 29.13 Inch W/ 1 Stainless Steel T Handle

    ICONIC

    $1,069.99
    36 X 24 X 29.13 Inch Smooth Aluminum Big Mouth Step Box Toolbox W/ 1 Stainless Steel T Handle* High Quality Toolbox* Made Of 1/8 Inch Aluminum* Big Mouth Step Box Style* 50% Larger Opening Than...
    09-020100880
    SKU:
    09-020100880
    Length Options:
    36 Inch
    Style Options:
    Big Mouth Style
    Finish Options:
    Smooth
    Material Options:
    Aluminum
    Location:
    Made In USA
    Width Options:
    29 Inch
    Height Options:
    24 Inch
    Product Type:
    Toolboxes
    Make:
    Universal Items
    $1,069.99
    Qty in Cart: 0
    Price:
    $1,069.99
    Subtotal:
  • Hogebuilt Tandem/Half Tandem Fender Mounting Bracket For Kenworth

    Hogebuilt Tandem/Half Tandem Fender Mounting Bracket For Kenworth

    HOGEBUILT FENDERS

    $362.99
    Tandem/Half Tandem Fender Mounting Bracket By Hogebuilt* High Quality Fender Mounting Bracket* Designed For Mounting Tandem Or Half Tandem Fenders (Fender Not Included)* Includes:  - (1) Triangle Arm...
    02-1110020
    SKU:
    02-1110020
    Location:
    Made In USA
    Type Options:
    Triangle Arm Mount
    Position:
    Kit Full
    Product Type:
    Rear Fenders
    Style Options:
    Tandum Fender
    Make:
    Kenworth
    $362.99
    Qty in Cart: 0
    Price:
    $362.99
    Subtotal:
  • Hogebuilt Quarter Fender Mounting Bracket For Kenworth

    Hogebuilt Quarter Fender Mounting Bracket For Kenworth

    HOGEBUILT FENDERS

    $475.99
    Quarter Fender Mounting Bracket By Hogebuilt* High Quality Fender Mounting Bracket* Designed For Mounting Quarter Fenders (Fender Not Included)* Includes:  - (1) Triangle Arm Mount* Sold...
    02-1110019
    SKU:
    02-1110019
    Material Options:
    Stainless Steel
    Location:
    Made In USA
    Type Options:
    Triangle Arm Mount
    Style Options:
    Quarter Fender
    Product Type:
    Rear Fenders
    Make:
    Kenworth
    $475.99
    Qty in Cart: 0
    Price:
    $475.99
    Subtotal:
  • Hogebuilt Tandem/Half Tandem Fender Mounting Bracket Driver Side For Kenworth

    Hogebuilt Tandem/Half Tandem Fender Mounting Bracket Driver Side For Kenworth

    HOGEBUILT FENDERS

    $475.99
    Driver Side Tandem/Half Tandem Fender Mounting Bracket By Hogebuilt* High Quality Fender Mounting Bracket* Designed For Mounting Tandem Or Half Tandem Fenders (Fender Not Included)* Includes:  - (1)...
    02-1110021
    SKU:
    02-1110021
    Product Type:
    Rear Fenders
    Position:
    Driver Side
    Material Options:
    Stainless Steel
    Type Options:
    Triangle Arm Mount
    Location:
    Made In USA
    Style Options:
    Tandum Fender
    Make:
    Kenworth
    $475.99
    Qty in Cart: 0
    Price:
    $475.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Copper Primary Wire W/ Smooth Surface, Stranded Annealed & Options

    Copper Primary Wire W/ Smooth Surface, Stranded Annealed & Options

    UNITED PACIFIC

    $7.99 - $8.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksGreen 18 Gauge Copper Primary Wire 30 Ft Length W/ Smooth Surface & Stranded AnnealedPrimary Wire 30 Ft...
    PPR_301271
    SKU:
    PPR_301271
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $7.99 - $8.99
    Qty in Cart: 0
    Price:
    $7.99 - $8.99
    Subtotal:
  • Dual Function Watermelon LED Clearance & Marker Light W/ LED & Lens Color Option

    Dual Function Watermelon LED Clearance & Marker Light W/ LED & Lens Color Option

    UNITED PACIFIC

    $11.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksWhite Dual Function Watermelon LED Clearance & Marker Light W/ Clear LensWhite Dual Function Watermelon...
    PPR_301264
    SKU:
    PPR_301264
    Product Type:
    Lighting
    Make:
    Universal Items
    $11.99
    Qty in Cart: 0
    Price:
    $11.99
    Subtotal:
  • Front Axle Cover W/ 10 33 MM Thread On Cylinder Style Nut Cover 13.8125 X 4.25 Inch & Removable Cap W/ Style Options

    Front Axle Cover W/ 10 33 MM Thread On Cylinder Style Nut Cover 13.8125 X 4.25 Inch & Removable Cap W/ Style Options

    UNITED PACIFIC

    $42.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksFront Axle Cover W/ Removable Dome Shape Cap & 10 33 MM Thread On Cylinder Style Nut Cover 13.8125 X 4...
    PPR_301252
    SKU:
    PPR_301252
    Product Type:
    Wheels
    Make:
    Universal Items
    $42.99
    Qty in Cart: 0
    Price:
    $42.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Fog Light Bezel Driver/Passenger Side Plastic

    Fog Light Bezel Driver/Passenger Side Plastic

    UNITED PACIFIC

    $15.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksFog Light Bezel Driver Side Plastic Replaces N18-1005Driver Side Plastic Fog Light Bezel* High Quality...
    PPR_301267
    SKU:
    PPR_301267
    Product Type:
    Lighting
    Make:
    Universal Items
    $15.99
    Qty in Cart: 0
    Price:
    $15.99
    Subtotal:
  • FREE SHIPPING
    Stainless Steel Mud Flap Hangers 30 Inch W/ 6 Round 4 Inch Dual LEDS W/ Color Options & 3/4 Inch Bolt Spacing

    Stainless Steel Mud Flap Hangers 30 Inch W/ 6 Round 4 Inch Dual LEDS W/ Color Options & 3/4 Inch Bolt Spacing

    TRUX ACCESSORIES

    $434.99 - $480.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks & TrailersStainless Steel Mud Flap Hanger 30 X 7.25 Inch W/ 3.75 Inch Bolt Spacing, 6 Round 4 Inch...
    PPR_301247
    SKU:
    PPR_301247
    Light Options:
    With Lights
    Style Options:
    With Bezel
    Finish Options:
    Polished
    Product Type:
    Bumpers
    Position:
    Rear
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Truck Class:
    Heavy Duty
    Ready To Ship:
    Yes
    $434.99 - $480.99
    Qty in Cart: 0
    Price:
    $434.99 - $480.99
    Subtotal:
  • Oval Saber Light Bar 6.375 Inch LED Turn Signal Light W/ LED & Lens Color Options

    Oval Saber Light Bar 6.375 Inch LED Turn Signal Light W/ LED & Lens Color Options

    UNITED PACIFIC

    $15.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksAmber Oval Saber Light Bar 6.375 Inch LED Turn Signal Light W/ Amber LensAmber Oval Saber Light Bar 6...
    PPR_301263
    SKU:
    PPR_301263
    Product Type:
    Lighting
    Make:
    Universal Items
    $15.99
    Qty in Cart: 0
    Price:
    $15.99
    Subtotal:
  • Double Fury Dual Color LED 11 X 2.125 Inch Turn Signal Light W/ Clear Lens Driver/Passenger Side & LED Color Option

    Double Fury Dual Color LED 11 X 2.125 Inch Turn Signal Light W/ Clear Lens Driver/Passenger Side & LED Color Option

    UNITED PACIFIC

    $31.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksAmber/Blue Double Fury Dual Color LED 11 X 2.125 Inch Turn Signal Light W/ Clear Lens Driver SideDriver...
    PPR_301259
    SKU:
    PPR_301259
    Product Type:
    Lighting
    Make:
    Universal Items
    $31.99
    Qty in Cart: 0
    Price:
    $31.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Rocker Switch Caling Style W/ Options

    Rocker Switch Caling Style W/ Options

    UNITED PACIFIC

    $15.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksBlack 1 Piece Rocker Switch Carling Style On/Off W/ Single Post, Single Throw1 Piece Black Rocker...
    PPR_301279
    SKU:
    PPR_301279
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $15.99
    Qty in Cart: 0
    Price:
    $15.99
    Subtotal:
  • FREE SHIPPING
    Stainless Steel Rear Center Panel 33 X 3.24 X 20 Inch W/ 2 Red LED & 3 Dual Revolution Watermelon LED Color Options, 20 Inch Drop & Clear Lens

    Stainless Steel Rear Center Panel 33 X 3.24 X 20 Inch W/ 2 Red LED & 3 Dual Revolution Watermelon LED Color Options, 20 Inch Drop & Clear Lens

    TRUX ACCESSORIES

    $1,268.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksStainless Steel Rear Center Panel 33 X 3.24 X 20 Inch W/ 2 Red LED & 3 Dual Revolution Watermelon...
    PPR_301237
    SKU:
    PPR_301237
    Product Type:
    Bumpers
    Make:
    Universal Items
    $1,268.99
    Qty in Cart: 0
    Price:
    $1,268.99
    Subtotal:
  • Dual Function Crystal Comet LED 9 Diode Sleeper Light W/ LED & Lens Color Options

    Dual Function Crystal Comet LED 9 Diode Sleeper Light W/ LED & Lens Color Options

    UNITED PACIFIC

    $25.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksWhite Dual Function Crystal Comet LED 9 Diode Sleeper Light W/ Clear LensWhite Dual Function Crystal...
    PPR_301266
    SKU:
    PPR_301266
    Product Type:
    Lighting
    Make:
    Universal Items
    $25.99
    Qty in Cart: 0
    Price:
    $25.99
    Subtotal:
  • On Sale
    FREE SHIPPING OVER $249
    Limited Quantity Available
    3 Inch Square 30 LED Reflector Stop, Turn, Tail Double Face Light W/ Double Post - Amber & Red LED W/ Optional Auxiliary Colors

    3 Inch Square 30 LED Reflector Stop, Turn, Tail Double Face Light W/ Double Post - Amber & Red LED W/ Optional Auxiliary Colors

    TRUX ACCESSORIES

    $40.07 - $73.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks & TrailersAmber/Red Mini Square Double Face Compact LED Stop, Turn & Marker Light W/ Amber/Red...
    PPR_301251
    SKU:
    PPR_301251
    Material Options:
    Plastic/Poly
    Truck Class:
    Universal
    Product Type:
    Lighting
    Diameter Options:
    3 Inch
    Shape Options:
    Square
    Shape Options:
    Rectangular
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $40.07 - $73.99
    Qty in Cart: 0
    Price:
    $40.07 - $73.99
    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).


Introducing the Official 4 State Trucks Mobile App – Gear Up On the Go!