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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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  • 3 Skull Thread-On Gearshift Knob - Aluminum Casting W/ Adapter For 9/10 Speed Eaton Fuller Shifter

    3 Skull Thread-On Gearshift Knob - Aluminum Casting W/ Adapter For 9/10 Speed Eaton Fuller Shifter

    UNITED PACIFIC

    $81.99
    Aluminum Casting 3 Skull Thread-On Gearshift Knob W/ Adapter Fits 9/10 Speed Eaton Fuller Shifter* High Quality Gear Shift Knob* Made Of Aluminum Casting* (3) Vertically Stacked Detailed...
    09-15131032
    SKU:
    09-15131032
    Product Type:
    Interior
    Finish Options:
    Chrome-Plated
    Type Options:
    Thread On
    Material Options:
    Aluminum
    Location:
    Made In USA
    Height Options:
    6 1/2 Inch
    Make:
    Universal Items
    $81.99
    Qty in Cart: 0
    Price:
    $81.99
    Subtotal:
  • Black Finish Aluminum Wheel W/ Hub Pilot Dual Mounting Set Up, 22.5 X 12.25 Inch & 11.25 Inch Bolt Circle

    Black Finish Aluminum Wheel W/ Hub Pilot Dual Mounting Set Up, 22.5 X 12.25 Inch & 11.25 Inch Bolt Circle

    OPP - ORIGINAL PARTS PROGRAM

    $1,008.99
    Wheel Black Finish Aluminum Wheel W/ Hub Pilot Dual Mounting Set Up, 22.5 X 12.25 Inch & 11.25 Inch Bolt Circle* High Quality Wheel* Made Of Aluminum* Hub Pilot Dual Mounting Set Up* Black Finish*...
    09-20132251
    SKU:
    09-20132251
    Product Type:
    Wheels
    Material Options:
    Aluminum
    Diameter Options:
    22 1/2 Inch
    Finish Options:
    Black Powder Coat
    Location:
    Made In USA
    Make:
    Universal Items
    $1,008.99
    Qty in Cart: 0
    Price:
    $1,008.99
    Subtotal:
  • Roadworks Icon NXT Low Profile Watermelon Fender Light Brackets W/ Chrome Billet, Front Amber LED & Lens, Back Red LED & Lens

    Roadworks Icon NXT Low Profile Watermelon Fender Light Brackets W/ Chrome Billet, Front Amber LED & Lens, Back Red LED & Lens

    ROADWORKS

    $158.99
    Icon NXT Low Profile Watermelon Fender Light Brackets W/ Chrome Billet, Front Amber LED & Amber Lens, Back Red LED & Red Lens By Roadworks* High Quality Double Face Fender Light* Made Of 430...
    09-1611107
    SKU:
    09-1611107
    Product Type:
    Lighting
    Material Options:
    Stainless Steel
    Color:
    Amber/Red
    Location:
    Made In USA
    Make:
    Universal Items
    $158.99
    Qty in Cart: 0
    Price:
    $158.99
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  • LED Bulk Head Green Light W/ Recess Mount, Bullet Style Plugs & Clear Lens

    LED Bulk Head Green Light W/ Recess Mount, Bullet Style Plugs & Clear Lens

    AFTERMARKET

    $10.71
    Bulk Head Light W/ Recess Mount, Bullet Style Plugs, Green LED & Clear Lens* High Quality Bulkhead Light* 11/16 Inch Hole For Mounting * Includes:  - Bullet Style Plugs   - 16 Gauge 6 Inch Lead Wire ...
    09-160104115
    SKU:
    09-160104115
    Product Type:
    Lighting
    Color:
    Green
    Make:
    Universal Items
    $10.71
    Qty in Cart: 0
    Price:
    $10.71
    Subtotal:
  • Special Saber Light Bar LED Turn Signal Light W/ 29 Diode Amber LEDs & Polycarbonate Amber Lens

    Special Saber Light Bar LED Turn Signal Light W/ 29 Diode Amber LEDs & Polycarbonate Amber Lens

    UNITED PACIFIC

    $15.99
    Special Saber Light Bar Amber LED Turn Signal Light W/ 29 Diode, 12 V & Polycarbonate Amber Lens* High Quality LED Turn Signal Light* Special Saber Light Bar Design* DOT/SAE, FMVSS 108* IPX7 Water...
    09-1607002
    SKU:
    09-1607002
    Product Type:
    Lighting
    Material Options:
    Plastic/Poly
    Color:
    Amber
    Location:
    Made In USA
    Shape Options:
    Round
    Diameter Options:
    4 Inch
    Make:
    Universal Items
    $15.99
    Qty in Cart: 0
    Price:
    $15.99
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  • FREE SHIPPING OVER $249
    HFA5 Series In Tank Filter 50 GPM, 25 PSI Bypass W/ Filter Head & 10 Micron Filter Element

    HFA5 Series In Tank Filter 50 GPM, 25 PSI Bypass W/ Filter Head & 10 Micron Filter Element

    BUYERS PRODUCTS

    $153.99
    HFA5 Series In Tank Filter 100 PSI Working Pressure W/ 1.25 Inch NPTF Thread* High Quality In-Tank Filter* Space Saving In-Tank Design* HFA5 Series* 50 GPM* Operates In Temperatures From -22 To 212...
    09-02500271
    SKU:
    09-02500271
    Product Type:
    Cargo Control
    Rating:
    100 PSI
    Make:
    Universal Items
    $153.99
    Qty in Cart: 0
    Price:
    $153.99
    Subtotal:
  • Double JJ Polished Aluminum Hood Ornament Base W/O Ornament Holes

    Double JJ Polished Aluminum Hood Ornament Base W/O Ornament Holes

    DOUBLE JJ

    $208.99
    Polished Aluminum Hood Ornament Base W/O Ornament Holes By Double JJ* High Quality Hood Ornament Base* Made Of Aluminum* Polished Finish* Base Mounting Holes Only* Ornament And Ornament Holes Not...
    09-126059
    SKU:
    09-126059
    Product Type:
    Hood Parts & Acc.
    Make:
    Universal Items
    $208.99
    Qty in Cart: 0
    Price:
    $208.99
    Subtotal:
  • Wire Harness W/ Waterproof Over-Molded Plug Housing, 50 3 Prong Right Angle Connectors & 3 Red/Black/White Wires

    Wire Harness W/ Waterproof Over-Molded Plug Housing, 50 3 Prong Right Angle Connectors & 3 Red/Black/White Wires

    4 STATE TRUCKS

    $168.99
    Wire Harness W/ 24 Inch Plug Spacing, Waterproof Over-Molded Plug Housing* High Quality Wire Harness* Waterproof Over-Molded Plug Housing* Includes:  - (50) 3 Prong Right Angle Connectors  - (3)...
    09-1603064K50
    SKU:
    09-1603064K50
    Product Type:
    Electronics
    Position:
    Kit Full
    Make:
    Universal Items
    $168.99
    Qty in Cart: 0
    Price:
    $168.99
    Subtotal:
  • On Sale
    Limited Quantity Available
    Holland Steel New Style 5th Wheel Top Plate, Left Hand Release With Low Lube Slider Pads

    Holland Steel New Style 5th Wheel Top Plate, Left Hand Release With Low Lube Slider Pads

    OPP - ORIGINAL PARTS PROGRAM

    Now: $2,648.99
    Was: $3,199.99
    Left Side Release Holland New Style Low Lube Steel 5th Wheel Top Plate* High Quality 5th Wheel Top Plate* Made Of Steel* With Teflon Low Lube Slider PadS* Driver Side Release Handle* 55,000 Lbs Max...
    09-05110202
    SKU:
    09-05110202
    Product Type:
    Frame & Chassis
    Location:
    Made In USA
    Style Options:
    New Holland Style
    Material Options:
    Steel
    Make:
    Universal Items
    Now: $2,648.99
    Was: $3,199.99
    Qty in Cart: 0
    Price:
    Now: $2,648.99
    Was: $3,199.99
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  • Bores Stainless Steel License Plate Holder W/ Mounting Hardware & HUT Sticker

    Bores Stainless Steel License Plate Holder W/ Mounting Hardware & HUT Sticker

    BORES

    $51.99
    License Plate Holder Stainless Steel W/ Mounting Hardware & HUT Sticker By Bores* High Quality License Plate Holder* Made Of 304 Stainless Steel* Includes:  - Single Plate Holder  - HUT Sticker Place...
    09-01070056
    SKU:
    09-01070056
    Product Type:
    Bumpers
    Height Options:
    10 1/2 Inch
    Width Options:
    12 1/2 Inch
    Location:
    Made In USA
    Length Options:
    3 1/2 Inch
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    $51.99
    Qty in Cart: 0
    Price:
    $51.99
    Subtotal:
  • Stainless Steel Wrecker Bar 6.5 X 12 X 48 Inch By Brunner For F1-1416-00001A Cab Rack

    Stainless Steel Wrecker Bar 6.5 X 12 X 48 Inch By Brunner For F1-1416-00001A Cab Rack

    BRUNNER FABRICATION

    $722.99
    Wrecker Bar For Strobe Lights For Cab Racks By Brunner FabricationAre you needing a way to mount lights? Brunner Fabrication and 4 State Trucks have you covered. With a sleek design, the bar gives...
    09-021005
    SKU:
    09-021005
    Length Options:
    6 1/2 Inch
    Product Type:
    Cargo Control
    Finish Options:
    Polished
    Location:
    Made In USA
    Light Options:
    Without Lights
    Height Options:
    12 Inch
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Width Options:
    48 Inch
    Ready To Ship:
    Yes
    $722.99
    Qty in Cart: 0
    Price:
    $722.99
    Subtotal:
  • Cab Rack Mounting Kit 19 Inch W/ 4 U Bolts

    Cab Rack Mounting Kit 19 Inch W/ 4 U Bolts

    ALTTEC

    $108.99
    19 Inch Cab Rack Mounting Kit W/ 4 U Bolts* High Quality Cab Rack Mounting Kit* Includes:  - (4) 1/4 Inch Mounting Plates  - (4) 5/8 Inch Threaded U-Bolts  - (8) 5/8 Inch Hex Bolts  - (8) 5/8 Inch...
    09-0210015
    SKU:
    09-0210015
    Position:
    Kit Full
    Product Type:
    Cargo Control
    Make:
    Universal Items
    $108.99
    Qty in Cart: 0
    Price:
    $108.99
    Subtotal:
  • 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
    Subtotal:
  • 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:
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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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