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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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  • On Sale
    Polished Aluminum 80 Inch Single Axle Fender W/ Rolled Edge & 26 Inch Drop

    Polished Aluminum 80 Inch Single Axle Fender W/ Rolled Edge & 26 Inch Drop

    TRUX ACCESSORIES

    Now: $628.31
    Was: $713.99
    80 Inch Polished Aluminum Single Axle Fender W/ Rolled Edge & 26 Inch Drop* High Quality Single Axle Fender* Made Of Aluminum* Polished Finish* Designed To Fit 43.5 Inch OD Tires* Rolled Edge Design*...
    09-11010111
    SKU:
    09-11010111
    Product Type:
    Rear Fenders
    Make:
    Universal Items
    Now: $628.31
    Was: $713.99
    Qty in Cart: 0
    Price:
    Now: $628.31
    Was: $713.99
    Subtotal:
  • Stainless Steel Half Fender Mounting Kit W/ Hardware

    Stainless Steel Half Fender Mounting Kit W/ Hardware

    TRUX ACCESSORIES

    $143.99
    Half Fender Mounting Kit Stainless Steel W/ Hardware* High Quality Half Fender Mounting Kit* Made Of 14 Gauge Stainless Steel* Smooth Finish* Designed For Mounting Half Tandem Fenders (Fenders Not...
    09-11100263
    SKU:
    09-11100263
    Product Type:
    Rear Fenders
    Make:
    Universal Items
    $143.99
    Qty in Cart: 0
    Price:
    $143.99
    Subtotal:
  • FREE SHIPPING OVER $249
    3157 Incandescent Bulb S 8 DF Wedge 2 Pack

    3157 Incandescent Bulb S 8 DF Wedge 2 Pack

    UNITED PACIFIC

    $7.99
    2 Pack 3157 Incandescent Bulb S 8 DF Wedge* High Quality Incandescent Bulb* Number 3157 Bulb* S-8 D.F. Wedge* (W2.5x16q)12.8/ 14V 2.10/ .59A 32/3CP(P27/7W)* Sold As Pack (2)* Warranty On Incandescent...
    09-16000223
    SKU:
    09-16000223
    Product Type:
    Lighting
    Make:
    Universal Items
    $7.99
    Qty in Cart: 0
    Price:
    $7.99
    Subtotal:
  • On Sale
    Galvanized Steel 60 Inch 4 Ribbed Half Fenders W/ Beaded Edge

    Galvanized Steel 60 Inch 4 Ribbed Half Fenders W/ Beaded Edge

    TRUX ACCESSORIES

    Now: $243.75
    Was: $276.99
    60 Inch Galvanized Steel 4 Ribbed Half Fenders W/ Beaded Edge* High Quality Half Fender* Made Of 16 Gauge Galvanized Steel* Designed To Fit 43.5 Inch OD Tires* Thin Beaded Edge Style* 4 Ribbed...
    09-110602000
    SKU:
    09-110602000
    Product Type:
    Rear Fenders
    Make:
    Universal Items
    Now: $243.75
    Was: $276.99
    Qty in Cart: 0
    Price:
    Now: $243.75
    Was: $276.99
    Subtotal:
  • Stainless Steel Full Fender Mounting Kit W/ 2 Angled Fender Brackets & Painted Black

    Stainless Steel Full Fender Mounting Kit W/ 2 Angled Fender Brackets & Painted Black

    TRUX ACCESSORIES

    $345.99
    Full Fender Mounting Kit Stainless Steel W/ 2 Angled Fender Brackets & Painted Black* High Quality Full Fender Mounting Kit* Made Of 14 Gauge Stainless Steel* Designed To Mount Polycarbonate Full...
    09-11100264
    SKU:
    09-11100264
    Product Type:
    Rear Fenders
    Make:
    Universal Items
    $345.99
    Qty in Cart: 0
    Price:
    $345.99
    Subtotal:
  • Stainless Steel Half Tandem Fender Mounting Kit W/ 2 Angled Fender Brackets & Painted Black

    Stainless Steel Half Tandem Fender Mounting Kit W/ 2 Angled Fender Brackets & Painted Black

    TRUX ACCESSORIES

    $196.99
    Half Tandem Fender Mounting Kit Stainless Steel W/ 2 Angled Fender Brackets & Painted Black* High Quality Half Tandem Fender Mounting Kit* Made Of 14 Gauge Stainless Steel* Designed For Mounting...
    09-11100266
    SKU:
    09-11100266
    Product Type:
    Rear Fenders
    Make:
    Universal Items
    $196.99
    Qty in Cart: 0
    Price:
    $196.99
    Subtotal:
  • LC 60 Inch Chrome West Coast Exhaust Top Stack W/ 7-5 Extended OD

    LC 60 Inch Chrome West Coast Exhaust Top Stack W/ 7-5 Extended OD

    LINCOLN CHROME

    $523.99
    60 Inch Chrome West Coast Exhaust Top Stack W/ 7-5 Extended OD By Lincoln Chrome* High Quality Exhaust Top Stack* Made Of Chrome-Plated Steel* West Coast Curved Top Style* Dimensions:  - 60 Inch...
    09-08011462
    SKU:
    09-08011462
    Diameter Options:
    7 Inch
    Material Options:
    Steel
    Style Options:
    West Coast Turn
    Location:
    Made In USA
    Height Options:
    60 Inch
    Finish Options:
    Chrome-Plated
    Product Type:
    Exhaust
    Make:
    Universal Items
    $523.99
    Qty in Cart: 0
    Price:
    $523.99
    Subtotal:
  • Black Steel Full Fender Mounting Kit W/ Hardware

    Black Steel Full Fender Mounting Kit W/ Hardware

    TRUX ACCESSORIES

    $419.99
    Full Fender Mounting Kit Black Steel W/ Hardware* High Quality Full Fender Mounting Kit* Made Of 14 Gauge Stainless Steel* Designed To Mount Polycarbonate Full Tandem Fenders (Fenders Not Included)*...
    09-11100256
    SKU:
    09-11100256
    Product Type:
    Rear Fenders
    Make:
    Universal Items
    $419.99
    Qty in Cart: 0
    Price:
    $419.99
    Subtotal:
  • On Sale
    Stainless Steel Super Single Axle Fender Mounting Kit W/ Hardware

    Stainless Steel Super Single Axle Fender Mounting Kit W/ Hardware

    TRUX ACCESSORIES

    Now: $524.47
    Was: $595.99
    Super Single Axle Fender Mounting Kit Stainless Steel W/ Hardware* High Quality Super Single Axle Fender Mounting Kit* Made Of 14 Gauge Stainless Steel* Designed For Mounting Super Single Axle...
    09-11100261
    SKU:
    09-11100261
    Product Type:
    Rear Fenders
    Make:
    Universal Items
    Now: $524.47
    Was: $595.99
    Qty in Cart: 0
    Price:
    Now: $524.47
    Was: $595.99
    Subtotal:
  • Galvanized Steel 80 Inch Single Axle Fender W/ Thin Beaded Edge

    Galvanized Steel 80 Inch Single Axle Fender W/ Thin Beaded Edge

    TRUX ACCESSORIES

    $348.99
    80 Inch Single Axle Fender Galvanized Steel W/ Thin Beaded Edge* High Quality Single Axle Fender* Made Of Galvanized Steel* Thin Beaded Edge Design* Fully Ribbed* 80 Inch Overall Length* Sold As...
    09-110601000
    SKU:
    09-110601000
    Product Type:
    Rear Fenders
    Make:
    Universal Items
    $348.99
    Qty in Cart: 0
    Price:
    $348.99
    Subtotal:
  • Hogebuilt Stainless Steel 68 Inch Super Single Half Tandem Fender W/ 3 Inch

    Hogebuilt Stainless Steel 68 Inch Super Single Half Tandem Fender W/ 3 Inch

    HOGEBUILT FENDERS

    $1,139.99
    68 Inch Super Single Half Tandem Fender Stainless Steel W/ 3 Inch Flange By Hogebuilt* High Quality Super Single Half Tandem Fender* Made Of 430 Stainless Steel* Mirror Shine Finish* Includes:  - (1)...
    09-11030369
    SKU:
    09-11030369
    Product Type:
    Rear Fenders
    Make:
    Universal Items
    $1,139.99
    Qty in Cart: 0
    Price:
    $1,139.99
    Subtotal:
  • Hogebuilt Stainless Steel 72 Inch Super Single Half Tandem Fender W/ 3 Inch

    Hogebuilt Stainless Steel 72 Inch Super Single Half Tandem Fender W/ 3 Inch

    HOGEBUILT FENDERS

    $1,167.99
    72 Inch Super Single Half Tandem Fender Stainless Steel W/ 3 Inch Flange By Hogebuilt* High Quality Super Single Half Tandem Fender* Made Of 430 Stainless Steel* Mirror Shine Finish* Includes:  - (1)...
    09-11030370
    SKU:
    09-11030370
    Product Type:
    Rear Fenders
    Make:
    Universal Items
    $1,167.99
    Qty in Cart: 0
    Price:
    $1,167.99
    Subtotal:
  • On Sale
    Stainless Steel 66 Inch 4 Ribbed Single Axle Fender W/ Beaded Edge & 21 Inch Drop

    Stainless Steel 66 Inch 4 Ribbed Single Axle Fender W/ Beaded Edge & 21 Inch Drop

    TRUX ACCESSORIES

    Now: $330.87
    Was: $375.99
    66 Inch Stainless Steel 4 Ribbed Single Axle Fender W/ Beaded Edge & 21 Inch Drop* High Quality Half Fender* Made Of 20 Gauge Galvanized Steel* Designed To Fit 43.5 Inch OD Tires* Thin Beaded Edge...
    09-11030249
    SKU:
    09-11030249
    Product Type:
    Rear Fenders
    Make:
    Universal Items
    Now: $330.87
    Was: $375.99
    Qty in Cart: 0
    Price:
    Now: $330.87
    Was: $375.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Zinc Plated Steel Deck Plate Mounting Kit

    Zinc Plated Steel Deck Plate Mounting Kit

    AUTOMANN USA

    $12.99
    Deck Plate Mounting Kit Zinc Plated Steel* High Quality Deck Plate Mounting Kit* Made Of Zinc Plated Steel* Mounting Hardware For Deck Plate * Deck Plate Not Included* Sold Individually* Warranty On...
    09-05030113
    SKU:
    09-05030113
    Product Type:
    Frame & Chassis
    Position:
    Kit Full
    Material Options:
    Steel
    Finish Options:
    Zinc-Plated
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $12.99
    Qty in Cart: 0
    Price:
    $12.99
    Subtotal:
  • On Sale
    Stainless Steel 80 Inch 4 Ribbed Single Axle Fender W/ Beaded Edge & 26 Inch Drop

    Stainless Steel 80 Inch 4 Ribbed Single Axle Fender W/ Beaded Edge & 26 Inch Drop

    TRUX ACCESSORIES

    Now: $217.35
    Was: $246.99
    80 Inch Stainless Steel 4 Ribbed Single Axle Fender W/ Beaded Edge & 26 Inch Drop* High Quality Single Axle Fender* Made Of 20 Gauge Stainless Steel* Designed To Fit 43 Inch OD Ties* Thin Beaded Edge...
    09-110301019
    SKU:
    09-110301019
    Product Type:
    Rear Fenders
    Make:
    Universal Items
    Now: $217.35
    Was: $246.99
    Qty in Cart: 0
    Price:
    Now: $217.35
    Was: $246.99
    Subtotal:
  • Smooth Aluminum Toolbox W/ Roll Up Door 36 X 24 X 24 Inch

    Smooth Aluminum Toolbox W/ Roll Up Door 36 X 24 X 24 Inch

    ICONIC

    $1,983.99
    36 X 24 X 24 Inch Smooth Aluminum Toolbox W/ Roll Up Door* High Quality Toolbox* Made Of 1/8 Inch Aluminum* Roll Up Door Style* Includes:  - Smooth Body  - Roll Up Door  - Full Width Stainless Steel...
    09-020100867
    SKU:
    09-020100867
    Length Options:
    36 Inch
    Style Options:
    Underbody Style
    Finish Options:
    Smooth
    Material Options:
    Aluminum
    Product Type:
    Toolboxes
    Height Options:
    24 Inch
    Location:
    Made In USA
    Width Options:
    24 Inch
    Make:
    Universal Items
    $1,983.99
    Qty in Cart: 0
    Price:
    $1,983.99
    Subtotal:
  • On Sale
    Stainless Steel 55 Inch Single Axle Fender W/ Flange & 17 Inch Drop

    Stainless Steel 55 Inch Single Axle Fender W/ Flange & 17 Inch Drop

    TRUX ACCESSORIES

    Now: $527.99
    Was: $599.99
    55 Inch Stainless Steel Single Axle Fender W/ Flange & 17 Inch Drop* High Quality Single Axle Fender* Made Of 16 Gauge Stainless Steel* Designed To Fit Lift Axles* With Flange* Dimensions:  - 55 Inch...
    09-110301018
    SKU:
    09-110301018
    Product Type:
    Rear Fenders
    Make:
    Universal Items
    Now: $527.99
    Was: $599.99
    Qty in Cart: 0
    Price:
    Now: $527.99
    Was: $599.99
    Subtotal:
  • LC 48 Inch Chrome West Coast Exhaust Top Stack W/ 7-5 Inch Extended OD

    LC 48 Inch Chrome West Coast Exhaust Top Stack W/ 7-5 Inch Extended OD

    LINCOLN CHROME

    $442.99
    Chrome West Coast Exhaust Top Stack 48 Inch W/ 7-5 Inch Extended OD By Lincoln Chrome* High Quality Exhaust Top Stack* Made Of Chrome-Plated Steel* West Coast Curved Top Style* Dimensions:  - 48 Inch...
    09-087548071
    SKU:
    09-087548071
    Finish Options:
    Chrome-Plated
    Product Type:
    Exhaust
    Location:
    Made In USA
    Material Options:
    Steel
    Height Options:
    48 Inch
    Style Options:
    West Coast Turn
    Diameter Options:
    7 Inch
    Make:
    Universal Items
    $442.99
    Qty in Cart: 0
    Price:
    $442.99
    Subtotal:
  • LC 8 X 72 Chrome West Coast Exhaust Top Stack

    LC 8 X 72 Chrome West Coast Exhaust Top Stack

    LINCOLN CHROME

    $830.99
    8 X 72 Inch West Coast Exhaust Top Stack By Lincoln Chrome* High Quality Exhaust Top Stack* Made Of Chrome-Plated Steel* West Coast Curved Top Style* Works With Seamless Design Elbows and Pipes*...
    09-088072083
    SKU:
    09-088072083
    Height Options:
    72 Inch
    Style Options:
    West Coast Turn
    Diameter Options:
    8 Inch
    Material Options:
    Steel
    Finish Options:
    Chrome-Plated
    Product Type:
    Exhaust
    Location:
    Made In USA
    Make:
    Universal Items
    $830.99
    Qty in Cart: 0
    Price:
    $830.99
    Subtotal:
  • On Sale
    Smooth Aluminum 55 Inch Single Axle Fenders W/ Flange & 17 Inch Drop

    Smooth Aluminum 55 Inch Single Axle Fenders W/ Flange & 17 Inch Drop

    TRUX ACCESSORIES

    Now: $262.23
    Was: $297.99
    55 Inch Smooth Aluminum Single Axle Fenders W/ Flange & 17 Inch Drop* High Quality Single Axle Fender* Made Of Aluminum* Smooth Polished Finish* Designed To Fit Lift Axles* With Flange* Dimensions: ...
    09-11010112
    SKU:
    09-11010112
    Product Type:
    Rear Fenders
    Make:
    Universal Items
    Now: $262.23
    Was: $297.99
    Qty in Cart: 0
    Price:
    Now: $262.23
    Was: $297.99
    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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