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
  • Bostrom Gray Mordura Cloth High Back Seat W/ Hi- Pro, Dual Armrests & Standard Air

    Bostrom Gray Mordura Cloth High Back Seat W/ Hi- Pro, Dual Armrests & Standard Air

    BOSTROM TRUCK SEATS

    $917.99
    Gray Mordura Cloth High Back Seat W/ Hi- Pro, Dual Armrests & Standard Air By BostromEnhance driver comfort and support with the Bostrom Gray Mordura Cloth High Back Seat with Hi-Pro, engineered for...
    2339252552
    SKU:
    2339252552
    Material Options:
    Cloth
    Style Options:
    High Back
    Product Type:
    Seats
    Color:
    Gray
    Make:
    Universal Items
    $917.99
    Qty in Cart: 0
    Price:
    $917.99
    Subtotal:
  • Rubber Closed Back Oval Grommet

    Rubber Closed Back Oval Grommet

    GRAND GENERAL

    $5.07
    Closed Back Oval GrommetEnsure a secure and professional installation with the Rubber Closed Back Oval Grommet, designed for durability and dependable protection in heavy-duty applications. Built...
    09-16020280
    SKU:
    09-16020280
    Shape Options:
    Oval
    Material Options:
    Rubber
    Color:
    Black
    Product Type:
    Lighting
    Make:
    Universal Items
    $5.07
    Qty in Cart: 0
    Price:
    $5.07
    Subtotal:
  • Fiberglass Paintable High Boy Full Fender Set 38 Inch W/ 4 Inch Lip For 52 & 54 Inch Axle Spread

    Fiberglass Paintable High Boy Full Fender Set 38 Inch W/ 4 Inch Lip For 52 & 54 Inch Axle Spread

    BAD ASS CUSTOM TRUCK PARTS

    $1,236.99
    Paintable Fiberglass High Boy Full Fender Set 38 Inch W/ 4 Inch Lip Fits 52 & 54 Inch Axle SpreadBuilt for durability and style, the 41 Inch Fiberglass High Boy Full Fender Set offers a premium rear...
    09-110403001
    SKU:
    09-110403001
    Length Options:
    106 Inch
    Finish Options:
    Paintable
    Type Options:
    Full Tandem Fender
    Material Options:
    Fiberglass
    Product Type:
    Rear Fenders
    Location:
    Made In USA
    Height Options:
    41 Inch
    Make:
    Universal Items
    $1,236.99
    Qty in Cart: 0
    Price:
    $1,236.99
    Subtotal:
  • Black & Gray Refrigerator Center Console W/ Dual Cup Holders- 24 X 12.5 X 12 Inch For Kenworth, Freightliner, Peterbilt & International Day Cab

    Black & Gray Refrigerator Center Console W/ Dual Cup Holders- 24 X 12.5 X 12 Inch For Kenworth, Freightliner, Peterbilt & International Day Cab

    SPARETIME FAB

    $607.99
    24 X 12.5 X 12 Inch Refrigerator Center Console W/ Dual Cup Holders Fits Trucks W/ Manual & Automatic Transmissions Fits Kenworth, Freightliner, Peterbilt & International Day CabTake your cab setup...
    09-151300173
    SKU:
    09-151300173
    Height Options:
    12 1/2 Inch
    Product Type:
    Interior
    Location:
    Made In USA
    Color:
    Black
    Width Options:
    12 1/2 Inch
    Material Options:
    Wood
    Length Options:
    24 Inch
    Make:
    Universal Items
    Cab Style:
    Day Cab
    $607.99
    Qty in Cart: 0
    Price:
    $607.99
    Subtotal:
  • Black Steel Rear Light Bar Mounting Bracket

    Black Steel Rear Light Bar Mounting Bracket

    UNITED PACIFIC

    $25.78
    Black Rear Light Bar Mounting BracketSecure your rear lighting system with the Black Steel Rear Light Bar Mounting Bracket, engineered for strength and long-lasting performance. Made from heavy-duty...
    09-161000013
    SKU:
    09-161000013
    Product Type:
    Lighting
    Color:
    Black
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $25.78
    Qty in Cart: 0
    Price:
    $25.78
    Subtotal:
  • 2 Inch Auxiliary LED Light- Blue LED/ Clear Lens

    2 Inch Auxiliary LED Light- Blue LED/ Clear Lens

    UNITED PACIFIC

    $12.74
    2 Inch Blue Auxiliary LED Light W/Clear LensUpgrade your lighting setup with the 2 Inch Auxiliary LED Light featuring a blue LED output and clear lens for a clean, modern appearance and reliable...
    09-160102258
    SKU:
    09-160102258
    Material Options:
    Plastic/Poly
    Diameter Options:
    2 Inch
    Shape Options:
    Round
    Color:
    Blue
    Product Type:
    Lighting
    Make:
    Universal Items
    $12.74
    Qty in Cart: 0
    Price:
    $12.74
    Subtotal:
  • Fiberglass Paintable Project One Full Radius Fender Set 38 Inch Drop W/ 7.5 Inch Sidewall For 52 & 54 Inch Axle Spread

    Fiberglass Paintable Project One Full Radius Fender Set 38 Inch Drop W/ 7.5 Inch Sidewall For 52 & 54 Inch Axle Spread

    BAD ASS CUSTOM TRUCK PARTS

    $818.99
    Paintable Fiberglass Project One Full Radius Fender Set 38 Inch Drop W/ 7.5 Inch SidewallUpgrade your truck with the Fiberglass Project One Full Radius Fender Set with 7.5 Inch Sidewall, engineered...
    09-110401006
    SKU:
    09-110401006
    Location:
    Made In USA
    Height Options:
    38 Inch
    Length Options:
    106 Inch
    Product Type:
    Rear Fenders
    Finish Options:
    Paintable
    Type Options:
    Full Radius Fender
    Material Options:
    Fiberglass
    Make:
    Universal Items
    $818.99
    Qty in Cart: 0
    Price:
    $818.99
    Subtotal:
  • Fiberglass Paintable Stealth Double Hump Fender Set 38 Inch Drop W/ 7 Inch Sidewall For 52 & 54 Inch Axle Spread

    Fiberglass Paintable Stealth Double Hump Fender Set 38 Inch Drop W/ 7 Inch Sidewall For 52 & 54 Inch Axle Spread

    BAD ASS CUSTOM TRUCK PARTS

    $1,339.99
    Paintable Fiberglass Stealth Double Hump Fender Set 38 Inch Drop W/ 7 Inch Sidewall Fits 52 & 54 Inch Axle SpreadUpgrade your truck's appearance and durability with the Fiberglass Stealth Double Hump...
    09-110404005
    SKU:
    09-110404005
    Material Options:
    Fiberglass
    Length Options:
    106 Inch
    Location:
    Made In USA
    Finish Options:
    Paintable
    Product Type:
    Rear Fenders
    Height Options:
    38 Inch
    Style Options:
    Double Hump
    Position:
    Rear
    Make:
    Universal Items
    $1,339.99
    Qty in Cart: 0
    Price:
    $1,339.99
    Subtotal:
  • TPHD Steel Threaded Side Mount Fender Post

    TPHD Steel Threaded Side Mount Fender Post

    TPHD

    $17.65
    Threaded Side Mount Fender Post By TPHDBuilt for strength and dependability, the TPHD Steel Side Mount Fender Post offers a high-quality stainless steel solution for secure fender mounting. Its...
    09-11100037
    SKU:
    09-11100037
    Material Options:
    Steel
    Style Options:
    Thread On
    Type Options:
    Side Mount
    Product Type:
    Rear Fenders
    Make:
    Universal Items
    $17.65
    Qty in Cart: 0
    Price:
    $17.65
    Subtotal:
  • RoadWatch Sensor Kit

    RoadWatch Sensor Kit

    BOSTROM TRUCK SEATS

    $398.99
    RoadWatch Sensor Kit Includes Sensor, Fastener & ConnectorsImprove safety and winter road performance with the RoadWatch Sensor Kit, a high-quality solution designed to accurately measure both road...
    09-15020196
    SKU:
    09-15020196
    Product Type:
    Electronics
    Make:
    Universal Items
    $398.99
    Qty in Cart: 0
    Price:
    $398.99
    Subtotal:
  • TPHD 72 Inch Stainless Steel Half Fender W/ 18.5 Inch Drop

    TPHD 72 Inch Stainless Steel Half Fender W/ 18.5 Inch Drop

    TPHD

    $658.99
    72 Inch 304 Stainless Steel Half Fender W/ 18.5 Inch DropAdd lasting shine and dependable protection to your rig with the TPHD 72 Inch Stainless Steel Half Fender, manufactured from heavy-duty 14...
    09-110300058
    SKU:
    09-110300058
    Material Options:
    Stainless Steel
    Height Options:
    18 Inch
    Type Options:
    Half Fender
    Size Options:
    14 Gauge
    Length Options:
    72 Inch
    Product Type:
    Rear Fenders
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $658.99
    Qty in Cart: 0
    Price:
    $658.99
    Subtotal:
  • Fiberglass Paintable Outlaw Full Fender Set 38 Inch Drop W/ 5.5 Inch Sidewall For 52 & 54 Inch Axle Spread

    Fiberglass Paintable Outlaw Full Fender Set 38 Inch Drop W/ 5.5 Inch Sidewall For 52 & 54 Inch Axle Spread

    BAD ASS CUSTOM TRUCK PARTS

    $1,236.99
    Paintable Fiberglass Outlaw Full Fender Set 38 Inch Drop W/ 5.5 Inch Sidewall Fits 52 & 54 Inch Axle SpreadUpgrade to the Fiberglass Outlaw Full Fender Set with 5.5 Inch Sidewall delivers a premium...
    09-110403002
    SKU:
    09-110403002
    Height Options:
    38 Inch
    Length Options:
    106 Inch
    Location:
    Made In USA
    Product Type:
    Rear Fenders
    Type Options:
    Full Tandem Fender
    Finish Options:
    Paintable
    Material Options:
    Fiberglass
    Make:
    Universal Items
    $1,236.99
    Qty in Cart: 0
    Price:
    $1,236.99
    Subtotal:
  • Fiberglass Paintable Long Style Full Fender Set 38 Inch Drop W/ 5.5 Inch Sidewall For Super Single Tires

    Fiberglass Paintable Long Style Full Fender Set 38 Inch Drop W/ 5.5 Inch Sidewall For Super Single Tires

    BAD ASS CUSTOM TRUCK PARTS

    $1,236.99
    Paintable Fiberglass Long Style Full Fender Set 38 Inch Drop W/ 5.5 Inch Sidewall Fits Super Single TiresUpgrade to the Fiberglass Long Style Full Fend Set with 5.5 Inch Sidewall, designed for single...
    09-110403003
    SKU:
    09-110403003
    Finish Options:
    Paintable
    Material Options:
    Fiberglass
    Product Type:
    Rear Fenders
    Type Options:
    Full Tandem Fender
    Location:
    Made In USA
    Make:
    Universal Items
    $1,236.99
    Qty in Cart: 0
    Price:
    $1,236.99
    Subtotal:
  • Fiberglass Paintable Camello Double Hump Fender Set 38 Inch Drop W/ 7 Inch Sidewall For 52 & 54 Inch Axle Spread

    Fiberglass Paintable Camello Double Hump Fender Set 38 Inch Drop W/ 7 Inch Sidewall For 52 & 54 Inch Axle Spread

    BAD ASS CUSTOM TRUCK PARTS

    $1,339.99
    Paintable Fiberglass Camello Double Hump Fender Set 38 Inch Drop W/ 7 Inch Sidewall Fits 52 & 54 Inch Axle SpreadEnhance your truck's appearance and protection with the Fiberglass Camello Double Hump...
    09-110404003
    SKU:
    09-110404003
    Length Options:
    106 Inch
    Location:
    Made In USA
    Material Options:
    Fiberglass
    Product Type:
    Rear Fenders
    Style Options:
    Double Hump
    Height Options:
    38 Inch
    Position:
    Rear
    Make:
    Universal Items
    $1,339.99
    Qty in Cart: 0
    Price:
    $1,339.99
    Subtotal:
  • FASS Transfer Tank Fuel Filter W/ 10 Micron Rating For Light Duty Trucks

    FASS Transfer Tank Fuel Filter W/ 10 Micron Rating For Light Duty Trucks

    FASS

    $33.15
    Transfer Tank Fuel Filter W/ 10 Micron RatingImprove fuel system protection with the FASS Transfer Tank Fuel Filter, engineered with a 10 micron filtration rating for superior water and contaminant...
    09-07030030
    SKU:
    09-07030030
    Make:
    Universal Items
    Product Type:
    Cargo Control
    $33.15
    Qty in Cart: 0
    Price:
    $33.15
    Subtotal:
  • Fiberglass Paintable Project Two Full Radius Fender Set 38 Inch Drop W/ 7.5 Inch Sidewall

    Fiberglass Paintable Project Two Full Radius Fender Set 38 Inch Drop W/ 7.5 Inch Sidewall

    BAD ASS CUSTOM TRUCK PARTS

    $818.99
    Paintable Fiberglass Project Two Full Radius Fender Set 38 Inch Drop W/ 7.5 Inch SidewallBuilt for durability and custom styling, the Fiberglass Project Two Full Radius Fender Set with 7.5 Inch...
    09-110401007
    SKU:
    09-110401007
    Product Type:
    Rear Fenders
    Finish Options:
    Paintable
    Location:
    Made In USA
    Material Options:
    Fiberglass
    Height Options:
    38 Inch
    Type Options:
    Full Radius Fender
    Make:
    Universal Items
    $818.99
    Qty in Cart: 0
    Price:
    $818.99
    Subtotal:
  • Paintable Fiberglass 22.5 Inch Super Lo Pro/ 19.5 Inch Single Rear Fender Set

    Paintable Fiberglass 22.5 Inch Super Lo Pro/ 19.5 Inch Single Rear Fender Set

    BAD ASS CUSTOM TRUCK PARTS

    $818.99
    22.5 Inch Super Lo Pro/ 19.5 Inch Paintable Fiberglass Single Rear Fender SetBuilt for durability and style, the 22.5 Inch Super Lo Pro / 19.5 Inch Fiberglass Single Fender Set offers a reliable...
    09-110401008
    SKU:
    09-110401008
    Material Options:
    Fiberglass
    Finish Options:
    Paintable
    Type Options:
    Full Radius Fender
    Location:
    Made In USA
    Product Type:
    Rear Fenders
    Make:
    Universal Items
    $818.99
    Qty in Cart: 0
    Price:
    $818.99
    Subtotal:
  • Fiberglass Paintable Road Rage Full Fender Set 38 Inch Drop W/ 5.5 Inch Sidewall

    Fiberglass Paintable Road Rage Full Fender Set 38 Inch Drop W/ 5.5 Inch Sidewall

    BAD ASS CUSTOM TRUCK PARTS

    $1,236.99
    Paintable Fiberglass Road Rage Full Fender Set 38 Inch Drop W/ 5.5 Inch SidewallThe Fiberglass Road Rage Full Fender Set with 5.5 Inch Sidewall is built for strength, fitment, and a bold custom...
    09-110403000
    SKU:
    09-110403000
    Height Options:
    38 Inch
    Product Type:
    Rear Fenders
    Location:
    Made In USA
    Finish Options:
    Paintable
    Material Options:
    Fiberglass
    Length Options:
    106 Inch
    Type Options:
    Full Tandem Fender
    Make:
    Universal Items
    $1,236.99
    Qty in Cart: 0
    Price:
    $1,236.99
    Subtotal:
  • FASS Diesel Fuel 5/8 Inch Suction Tube Kit W/ Bulkhead Fitting

    FASS Diesel Fuel 5/8 Inch Suction Tube Kit W/ Bulkhead Fitting

    FASS

    $91.99
    Diesel Fuel 5/8 Inch Suction Tube Kit W/ Bulkhead FittingImprove fuel delivery and system efficiency with the FASS Diesel Fuel 5/8 Inch Suction Tube Kit with Bulkhead Fitting, designed specifically...
    09-07030026
    SKU:
    09-07030026
    Product Type:
    Engine Parts
    Position:
    Kit Full
    Make:
    Universal Items
    $91.99
    Qty in Cart: 0
    Price:
    $91.99
    Subtotal:
  • TPHD 120 Inch Stainless Steel 4 Ribbed Full Fender W/ Beaded Edge

    TPHD 120 Inch Stainless Steel 4 Ribbed Full Fender W/ Beaded Edge

    TPHD

    $591.99
    Stainless Steel 4 Ribbed Full Fender 120 Inch W/ Beaded Edge By TPHDDeliver premium protection and a high-end stainless steel finish with the TPHD 120 Inch Four Ribbed Full Fender, designed...
    09-11030334
    SKU:
    09-11030334
    Length Options:
    120 Inch
    Product Type:
    Rear Fenders
    Type Options:
    Full Tandem Fender
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    $591.99
    Qty in Cart: 0
    Price:
    $591.99
    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!