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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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  • 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:
  • Fiberglass Paintable Single Axle Full Radius Fender Set 38 Inch Drop W/ 2.5 Inch Lip

    Fiberglass Paintable Single Axle Full Radius Fender Set 38 Inch Drop W/ 2.5 Inch Lip

    BAD ASS CUSTOM TRUCK PARTS

    $818.99
    Paintable Fiberglass Single Axle Full Radius Fender Set 38 Inch Drop W/ 2.5 Inch SidewallEnhance your truck's appearance and protection with the Fiberglass Single Axle Full Radius Fender Set with 2.5...
    09-110401005
    SKU:
    09-110401005
    Finish Options:
    Paintable
    Length Options:
    106 Inch
    Material Options:
    Fiberglass
    Type Options:
    Full Radius Fender
    Height Options:
    38 Inch
    Product Type:
    Rear Fenders
    Location:
    Made In USA
    Make:
    Universal Items
    $818.99
    Qty in Cart: 0
    Price:
    $818.99
    Subtotal:
  • FASS High Output Heater Disk For FASS Titanium Signature Series Fuel System

    FASS High Output Heater Disk For FASS Titanium Signature Series Fuel System

    FASS

    $167.99
    High Output Heater Disk For FASS Titanium Signature Series Fuel SystemStay ahead of winter fuel issues with the FASS High Output Heater Disk, engineered for FASS Titanium Series and Titanium...
    09-07030164
    SKU:
    09-07030164
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $167.99
    Qty in Cart: 0
    Price:
    $167.99
    Subtotal:
  • FASS Ultimate Electric Diesel Fuel Dual Probe Heater Kit For Signature Series Fuel Systems

    FASS Ultimate Electric Diesel Fuel Dual Probe Heater Kit For Signature Series Fuel Systems

    FASS

    $469.99
    Ultimate Electric Diesel Fuel Dual Probe Heater KitStay prepared for extreme cold weather with the FASS Ultimate Electric Diesel Fuel Dual Probe Heater Kit for Signature Series fuel systems. This...
    09-07030022
    SKU:
    09-07030022
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $469.99
    Qty in Cart: 0
    Price:
    $469.99
    Subtotal:
  • FASS Diesel Fuel 5/8 Inch Module Suction Tube Kit W/ Bulkhead Fitting

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

    FASS

    $101.99
    Diesel Fuel 5/8 Inch Module Suction Tube Kit W/ Bulkhead FittingImprove fuel system performance with the FASS Diesel Fuel 5/8 Inch Module Suction Tube Kit with Bulkhead Fitting, designed for reliable...
    09-07030027
    SKU:
    09-07030027
    Product Type:
    Engine Parts
    Position:
    Kit Full
    Make:
    Universal Items
    $101.99
    Qty in Cart: 0
    Price:
    $101.99
    Subtotal:
  • FASS Spin- On Water Separator Fuel Filter For FASS Drop- In Series Fuel System

    FASS Spin- On Water Separator Fuel Filter For FASS Drop- In Series Fuel System

    FASS

    $35.19
    Spin- On Water Separator Fuel Filter Use With FASS Drop- In Series Fuel SystemsEnsure cleaner fuel and better engine protection with the FASS Spin-On Water Separator Fuel Filter designed for FASS...
    09-07030012
    SKU:
    09-07030012
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $35.19
    Qty in Cart: 0
    Price:
    $35.19
    Subtotal:
  • FASS Signature Series Extended Length Extreme Water Separator Filter

    FASS Signature Series Extended Length Extreme Water Separator Filter

    FASS

    $35.19
    Signature Series Extended Length Extreme Water Separator FilterProtect your diesel fuel system with the FASS Signature Series Extended Length Extreme Water Separator Filter, designed for FASS...
    09-07030029
    SKU:
    09-07030029
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $35.19
    Qty in Cart: 0
    Price:
    $35.19
    Subtotal:
  • FASS Extreme Water Separator Filter W/ 2 Micron Absolute Filtration Rating

    FASS Extreme Water Separator Filter W/ 2 Micron Absolute Filtration Rating

    FASS

    $41.31
    Extreme Water Separator FilterProtect your diesel fuel system with the FASS Extreme Water Separator Filter, a high-quality filtration solution designed for FASS Titanium Series and Titanium Signature...
    09-07030028
    SKU:
    09-07030028
    Style Options:
    Heavy Duty
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $41.31
    Qty in Cart: 0
    Price:
    $41.31
    Subtotal:
  • FASS Dual Electric Heater Kit Splitter For Titanium & Signature Series Fuel Systems

    FASS Dual Electric Heater Kit Splitter For Titanium & Signature Series Fuel Systems

    FASS

    $30.09
    Dual Electric Heater Kit SplitterSimplify your cold-weather fuel system setup with the FASS Dual Electric Heater Kit Splitter for Titanium and Signature Series fuel systems. Designed to connect two...
    09-07030023
    SKU:
    09-07030023
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $30.09
    Qty in Cart: 0
    Price:
    $30.09
    Subtotal:
  • FASS Diesel Fuel Sump Kit W/ Single Bolt Design

    FASS Diesel Fuel Sump Kit W/ Single Bolt Design

    FASS

    $183.99
    Diesel Fuel Sump KitImprove fuel delivery and system efficiency with the FASS Diesel Fuel Sump Kit, a high-quality upgrade designed for a wide range of diesel applications. Precision-crafted from...
    09-07030025
    SKU:
    09-07030025
    Product Type:
    Engine Parts
    Position:
    Kit Full
    Make:
    Universal Items
    $183.99
    Qty in Cart: 0
    Price:
    $183.99
    Subtotal:
  • FASS Extended Length Particulate Filter W/ 144 Micron Rating

    FASS Extended Length Particulate Filter W/ 144 Micron Rating

    FASS

    $26.01
    Extended Length Particulate Filter W/ 144 Micron RatingEnhance fuel system protection with the FASS Extended Length Particulate Filter featuring a 144 micron filtration rating, designed for Titanium...
    09-07030024
    SKU:
    09-07030024
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $26.01
    Qty in Cart: 0
    Price:
    $26.01
    Subtotal:
  • FASS Electric Heater Probe Kit For FASS Drop- In Series Fuel System

    FASS Electric Heater Probe Kit For FASS Drop- In Series Fuel System

    FASS

    $173.99
    Electric Heater Probe Kit Use With FASS Drop- In Series Fuel SystemsStay ahead of winter fuel issues with the FASS Electric Heater Probe Kit for Drop-In Series fuel systems. Designed to evenly...
    09-07030013
    SKU:
    09-07030013
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $173.99
    Qty in Cart: 0
    Price:
    $173.99
    Subtotal:
  • FASS Electric Diesel Fuel Dual Probe Heater Kit For Signature Series Fuel Systems

    FASS Electric Diesel Fuel Dual Probe Heater Kit For Signature Series Fuel Systems

    FASS

    $295.99
    Electric Diesel Fuel Dual Probe Heater KitStay protected in extreme winter conditions with the FASS Electric Diesel Fuel Dual Probe Heater Kit for Signature Series fuel systems. This high-quality...
    09-07030021
    SKU:
    09-07030021
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $295.99
    Qty in Cart: 0
    Price:
    $295.99
    Subtotal:
  • FASS Adjustable Fuel Pressure Regulator For 1/2 Inch Fuel Line

    FASS Adjustable Fuel Pressure Regulator For 1/2 Inch Fuel Line

    FASS

    $152.99
    Adjustable Fuel Pressure Regulator W/ Built- In Fuel Pressure Port & Boost Compensation Port Fits 1/2 Inch Fuel LineOptimize your diesel fuel system performance with the FASS Adjustable Fuel Pressure...
    09-07030020
    SKU:
    09-07030020
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $152.99
    Qty in Cart: 0
    Price:
    $152.99
    Subtotal:
  • Bostrom Tan Cloth Armrest For Captain Series Seat

    Bostrom Tan Cloth Armrest For Captain Series Seat

    BOSTROM TRUCK SEATS

    $64.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksBostrom Tan Cloth Armrest- Left Hand For Captain Series SeatCaptain Series Left Hand Tan Cloth Armrest...
    PPR_300755
    SKU:
    PPR_300755
    Position:
    Driver Side
    Color:
    Tan
    Product Type:
    Seats
    Position:
    Passenger Side
    Material Options:
    Cloth
    Make:
    Universal Items
    $64.99
    Qty in Cart: 0
    Price:
    $64.99
    Subtotal:
  • 2.5 Inch Round Reflector Clearance Marker LED Light W/ Color Option

    2.5 Inch Round Reflector Clearance Marker LED Light W/ Color Option

    MAXXIMA

    $8.09
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks2.5 Inch Round Reflector Clearance Marker LED Light- Red LED/ Red Lens2.5 Inch Red Round Reflector...
    PPR_300752
    SKU:
    PPR_300752
    Color:
    Amber
    Product Type:
    Lighting
    Diameter Options:
    2 1/2 Inch
    Color:
    Red
    Shape Options:
    Round
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    $8.09
    Qty in Cart: 0
    Price:
    $8.09
    Subtotal:
  • 1.5 Inch 3 Diode Rectangular Clearance Marker LED Light W/ Color Options

    1.5 Inch 3 Diode Rectangular Clearance Marker LED Light W/ Color Options

    MAXXIMA

    $12.19 - $14.25
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks1.5 Inch 3 Diode Rectangular Clearance Marker LED Light- Blue LED/ Clear Lens1.5 Inch Blue 3 Diode...
    PPR_300749
    SKU:
    PPR_300749
    Shape Options:
    Rectangular
    Color:
    Amber
    Color:
    Green
    Color:
    Blue
    Color:
    Red/Clear
    Material Options:
    Plastic/Poly
    Color:
    White/Clear
    Type Options:
    Grommet Mount
    Color:
    Red
    Style Options:
    Black Housing
    Product Type:
    Lighting
    Width Options:
    1 1/2 Inch
    Make:
    Universal Items
    $12.19 - $14.25
    Qty in Cart: 0
    Price:
    $12.19 - $14.25
    Subtotal:
  • 1.25 Inch Clearance Marker LED Light W/ Color Options

    1.25 Inch Clearance Marker LED Light W/ Color Options

    MAXXIMA

    $14.25
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks1.25 Inch Clearance Marker LED Light- Green LED/ Clear Lens1.25 Inch Green Clearance Marker LED Light...
    PPR_300750
    SKU:
    PPR_300750
    Color:
    Green
    Material Options:
    Plastic/Poly
    Diameter Options:
    1 1/4 Inch
    Product Type:
    Lighting
    Shape Options:
    Round
    Color:
    White/Clear
    Height Options:
    1 Inch
    Type Options:
    Grommet Mount
    Make:
    Universal Items
    $14.25
    Qty in Cart: 0
    Price:
    $14.25
    Subtotal:
  • 1.25 Inch 6 Diode Round Mini Courtesy Marker LED Light

    1.25 Inch 6 Diode Round Mini Courtesy Marker LED Light

    MAXXIMA

    $13.21 - $13.45
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks1.25 Inch 6 Diode Round Mini Courtesy Marker LED Light- Blue LED / Clear Lens1.25 Inch 6 Diode Blue...
    PPR_300751
    SKU:
    PPR_300751
    Color:
    White/Clear
    Product Type:
    Lighting
    Truck Class:
    Universal
    Diameter Options:
    1 1/4 Inch
    Height Options:
    1 Inch
    Shape Options:
    Round
    Material Options:
    Plastic/Poly
    Type Options:
    Grommet Mount
    Make:
    Universal Items
    $13.21 - $13.45
    Qty in Cart: 0
    Price:
    $13.21 - $13.45
    Subtotal:
  • 1.5 Inch Rectangular Clearance Marker LED Light W/ Color Options

    1.5 Inch Rectangular Clearance Marker LED Light W/ Color Options

    MAXXIMA

    $10.57
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks1.5 Inch Rectangular Clearance Marker LED Light- Red LED/ Red Lens1.5 Inch Red Rectangular Clearance...
    PPR_300748
    SKU:
    PPR_300748
    Product Type:
    Lighting
    Color:
    Red
    Color:
    Amber
    Style Options:
    Black Housing
    Material Options:
    Plastic/Poly
    Shape Options:
    Rectangular
    Type Options:
    Surface Mount
    Make:
    Universal Items
    $10.57
    Qty in Cart: 0
    Price:
    $10.57
    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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