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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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  • Smooth Aluminum Big Mouth Step Box W/ Smooth Stainless Steel Lid- 24 X 24 X 29.13 Inch

    Smooth Aluminum Big Mouth Step Box W/ Smooth Stainless Steel Lid- 24 X 24 X 29.13 Inch

    ICONIC

    $1,364.99
    24 X 24 X 29.13 Inch Smooth Aluminum Big Mouth Step Box W/ Smooth LidMaximize cab access and storage with the Smooth Aluminum Big Mouth Step Box, featuring a smooth stainless steel lid and Big Mouth...
    09-020100855
    SKU:
    09-020100855
    Length Options:
    24 Inch
    Material Options:
    Aluminum
    Finish Options:
    Smooth
    Height Options:
    24 Inch
    Product Type:
    Toolboxes
    Width Options:
    29 Inch
    Make:
    Universal Items
    $1,364.99
    Qty in Cart: 0
    Price:
    $1,364.99
    Subtotal:
  • 3 X 3 Inch Spot Light W/ Black Aluminum Housing- D Series

    3 X 3 Inch Spot Light W/ Black Aluminum Housing- D Series

    AFTERMARKET

    $691.99
    3 X 3 Inch D Series Spot Light W/ Black HousingLight up the darkest conditions with the 3 X 3 Inch Spot Light - D Series, designed for durable performance under extreme temperatures and weather...
    09-16090492
    SKU:
    09-16090492
    Product Type:
    Lighting
    Make:
    Universal Items
    Color:
    White/Clear
    Style Options:
    Black Housing
    Width Options:
    3 Inch
    Height Options:
    3 Inch
    Material Options:
    Aluminum
    Ready To Ship:
    Yes
    $691.99
    Qty in Cart: 0
    Price:
    $691.99
    Subtotal:
  • TPHD 120 Inch Stainless Steel 4 Rib Full Tandem Fender

    TPHD 120 Inch Stainless Steel 4 Rib Full Tandem Fender

    TPHD

    $745.99
    120 Inch Full Tandem Fender By TPHDDesigned for strength, style, and long-term reliability, the TPHD 120 Inch Stainless Steel 4 Rib Full Tandem Fender provides superior tandem wheel protection and...
    09-11030385
    SKU:
    09-11030385
    Length Options:
    120 Inch
    Material Options:
    Stainless Steel
    Product Type:
    Exterior
    Make:
    Universal Items
    $745.99
    Qty in Cart: 0
    Price:
    $745.99
    Subtotal:
  • Brunner 20 Gallon Hydraulic Tank W/ 2 Inch NPT Port

    Brunner 20 Gallon Hydraulic Tank W/ 2 Inch NPT Port

    BRUNNER FABRICATION

    $1,387.99
    20 Gallon Hydraulic Tank By Brunner Fits Into The Inside Of A Headache RackMaximize your hydraulic system's reliability with the Brunner 20 Gallon Hydraulic Tank W/ 2 Inch NPT Port, crafted for...
    09-02500261
    SKU:
    09-02500261
    Capacity:
    20 Gallons
    Product Type:
    Cargo Control
    Make:
    Universal Items
    $1,387.99
    Qty in Cart: 0
    Price:
    $1,387.99
    Subtotal:
  • Smooth Aluminum Big Mouth Step Box W/ Smooth Lid- 36 X 24 X 29.13 Inch

    Smooth Aluminum Big Mouth Step Box W/ Smooth Lid- 36 X 24 X 29.13 Inch

    ICONIC

    $1,049.99
    36 X 24 X 29.13 Inch Smooth Aluminum Big Mouth Step Box W/ Smooth LidImprove organization and cab access with the Smooth Aluminum Big Mouth Step Box featuring a smooth lid and 36 x 24 x 29.13-inch...
    09-020100554
    SKU:
    09-020100554
    Length Options:
    36 Inch
    Material Options:
    Aluminum
    Finish Options:
    Smooth
    Height Options:
    29 Inch
    Product Type:
    Toolboxes
    Width Options:
    24 Inch
    Make:
    Universal Items
    $1,049.99
    Qty in Cart: 0
    Price:
    $1,049.99
    Subtotal:
  • Hogebuilt Stainless Steel Fender Mounting Arm- Driver Side

    Hogebuilt Stainless Steel Fender Mounting Arm- Driver Side

    HOGEBUILT FENDERS

    $407.99
    Driver Side Fender Mounting Arm By HogebuiltAchieve superior fender support with the Hogebuilt Stainless Steel Fender Mounting Arm - Driver Side. Crafted from stainless steel with a welded square...
    09-111000057
    SKU:
    09-111000057
    Material Options:
    Stainless Steel
    Position:
    Driver Side
    Product Type:
    Exterior
    Make:
    Universal Items
    $407.99
    Qty in Cart: 0
    Price:
    $407.99
    Subtotal:
  • TPHD 120 Inch Aluminum 3 Rib Full Tandem Fender W/ 2 Inch Flange

    TPHD 120 Inch Aluminum 3 Rib Full Tandem Fender W/ 2 Inch Flange

    TPHD

    $296.99
    120 Inch Full Tandem Fender W/ 2 Inch Flange By TPHDSafeguard your tandem axles with the TPHD 120 Inch Aluminum 3 Rib Full Tandem Fender with 2 Inch Flange, engineered for truckers who demand...
    09-11010316
    SKU:
    09-11010316
    Style Options:
    Flanged
    Length Options:
    120 Inch
    Material Options:
    Aluminum
    Product Type:
    Exterior
    Make:
    Universal Items
    $296.99
    Qty in Cart: 0
    Price:
    $296.99
    Subtotal:
  • 34 X 18 Inch Stainless Steel Rear Center Panel W/ Rounded Corners & 5 Round 4 Inch Light Holes

    34 X 18 Inch Stainless Steel Rear Center Panel W/ Rounded Corners & 5 Round 4 Inch Light Holes

    ARANDA TRUCK ACCESSORIES

    $451.99
    34 X 18 Inch Rear Center Panel W/ Rounded Corners & 5 Round Light HolesGive your truck a long-lasting rear upgrade with this 34 x 18 inch stainless steel center panel. Its tombstone-style design with...
    09-011100149
    SKU:
    09-011100149
    Finish Options:
    Polished
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Height Options:
    18 Inch
    Product Type:
    Bumpers
    Light Options:
    Without Lights
    Width Options:
    34 Inch
    Make:
    Universal Items
    $451.99
    Qty in Cart: 0
    Price:
    $451.99
    Subtotal:
  • Aluminum Cab Rack 76 X 68 Inch W/ 50 Gallon Hydraulic Tank

    Aluminum Cab Rack 76 X 68 Inch W/ 50 Gallon Hydraulic Tank

    ICONIC

    $4,736.99
    76 X 68 Inch Cab Rack W/ 50 Gallon Hydraulic Tank, Cabinets & Jail Bar Window Without BarsBuilt to support demanding hydraulic systems, the 76 x 68 Inch Smooth Aluminum Cab Rack with 50 Gallon Tank...
    09-0213024
    SKU:
    09-0213024
    Product Type:
    Cargo Control
    Material Options:
    Aluminum
    Finish Options:
    Smooth
    Make:
    Universal Items
    Height Options:
    68 Inch
    Width Options:
    76 Inch
    $4,736.99
    Qty in Cart: 0
    Price:
    $4,736.99
    Subtotal:
  • 30 Inch Stainless Steel Grab Handle

    30 Inch Stainless Steel Grab Handle

    ICONIC

    $119.99
    30 Inch Grab HandleImprove cab access with confidence using this 30 Inch Stainless Steel Grab Handle, built to deliver strength and stability in demanding environments. Made from high-quality...
    09-0210012
    SKU:
    09-0210012
    Product Type:
    Exterior
    Material Options:
    Stainless Steel
    Finish Options:
    Polished
    Height Options:
    30 Inch
    Make:
    Universal Items
    $119.99
    Qty in Cart: 0
    Price:
    $119.99
    Subtotal:
  • 45 Inch Stainless Steel Rear T Bar Light Bar W/ 12 Round 4 Inch Light Holes Across Top & 9 Round 2 Inch Light Holes Across Bottom

    45 Inch Stainless Steel Rear T Bar Light Bar W/ 12 Round 4 Inch Light Holes Across Top & 9 Round 2 Inch Light Holes Across Bottom

    ARANDA TRUCK ACCESSORIES

    $1,292.99
    45 Inch Rear T Bar Light Bar W/ 12 Round 4 Inch Light Holes & 9 Round 2 Inch Light HolesImprove visibility and add a polished look to your truck with this 45-inch stainless steel rear T-bar light bar...
    09-01100209
    SKU:
    09-01100209
    Product Type:
    Bumpers
    Material Options:
    Stainless Steel
    Finish Options:
    Polished
    Size Options:
    14 Gauge
    Light Options:
    Without Lights
    Width Options:
    45 Inch
    Make:
    Universal Items
    $1,292.99
    Qty in Cart: 0
    Price:
    $1,292.99
    Subtotal:
  • On Sale
    Limited Quantity Available
    2 Inch Diameter Zinc Plated Steel Rain Cap

    2 Inch Diameter Zinc Plated Steel Rain Cap

    AFTERMARKET

    Now: $9.05
    Was: $19.40
    2 Inch Zinc Plated Steel Rain CapGuard your exhaust system against rain, snow, and debris with the 2 Inch Diameter Zinc Plated Steel Rain Cap. Crafted from durable zinc-plated steel, it combines...
    09-0805030
    SKU:
    09-0805030
    Product Type:
    Exhaust
    Height Options:
    2 Inch
    Make:
    Universal Items
    Ready To Ship:
    Yes
    Now: $9.05
    Was: $19.40
    Qty in Cart: 0
    Price:
    Now: $9.05
    Was: $19.40
    Subtotal:
  • 4 Inch X 30 Ft Red Winch Strap W/ Sewn Loop- 5400 Lb Working Load

    4 Inch X 30 Ft Red Winch Strap W/ Sewn Loop- 5400 Lb Working Load

    AFTERMARKET

    $25.35
    4 Inch X 30 Ft Winch Strap W/ Loop- 5400 Lb Working LoadKeep your winching operations safe and efficient with the 4 Inch x 30 Ft Red Winch Strap, featuring a durable tapered sewn loop and a 5,400 lb...
    09-0207121
    SKU:
    09-0207121
    Product Type:
    Cargo Control
    Length Options:
    360 Inch
    Width Options:
    4 Inch
    Color:
    Red
    Make:
    Universal Items
    $25.35
    Qty in Cart: 0
    Price:
    $25.35
    Subtotal:
  • Minimizer Underbody Tool Box Bracket Kit- 16.8 X 18 Inch For 18 Inch Underbody Tool Box

    Minimizer Underbody Tool Box Bracket Kit- 16.8 X 18 Inch For 18 Inch Underbody Tool Box

    MINIMIZER

    $248.99
    16.8 X 18 Inch Underbody Tool Box Bracket KitSecure your truck's underbody storage with the Minimizer 16.8 x 18 Inch Tool Box Bracket Kit, designed to hold an 18-inch tool box safely and securely...
    09-020100856
    SKU:
    09-020100856
    Position:
    Kit Full
    Height Options:
    17 Inch
    Product Type:
    Toolboxes
    Width Options:
    18 Inch
    Make:
    Universal Items
    $248.99
    Qty in Cart: 0
    Price:
    $248.99
    Subtotal:
  • Tailgate Latch Air Cylinder Kit Replaces TG56

    Tailgate Latch Air Cylinder Kit Replaces TG56

    AFTERMARKET

    $373.99
    Tailgate Latch Air Cylinder KitRestore your tailgate's performance with the Tailgate Latch Air Cylinder Kit, engineered to replace TG56 with precision. The kit includes cylinder, valve, tubing, and...
    09-02500222
    SKU:
    09-02500222
    Product Type:
    Cargo Control
    Make:
    Universal Items
    $373.99
    Qty in Cart: 0
    Price:
    $373.99
    Subtotal:
  • Brunner Aluminum Cab Rack 80 X 80 X 16 Inch

    Brunner Aluminum Cab Rack 80 X 80 X 16 Inch

    BRUNNER FABRICATION

    $6,263.99
    Aluminum Cab Rack W/ 4 Polished Stainless Steel DoorsStrength and style meet functionality in the Brunner 80 x 80 Inch Aluminum Cab Rack with 4 Door Cabinet Rack. Built from durable aluminum with...
    09-021340
    SKU:
    09-021340
    Length Options:
    16 Inch
    Height Options:
    80 Inch
    Width Options:
    80 Inch
    Material Options:
    Aluminum
    Finish Options:
    Smooth
    Product Type:
    Cargo Control
    Make:
    Universal Items
    $6,263.99
    Qty in Cart: 0
    Price:
    $6,263.99
    Subtotal:
  • Smooth Aluminum Underbody Tool Box W/ Dual Inset Barn Door & Stainless Steel T-Handles- 72 X 24 X 24 Inch

    Smooth Aluminum Underbody Tool Box W/ Dual Inset Barn Door & Stainless Steel T-Handles- 72 X 24 X 24 Inch

    ICONIC

    $1,199.99
    72 X 24 X 24 Inch Smooth Aluminum Underbody Tool Box W/ Dual Inset Barn Door & Stainless Steel T-HandlesBuilt to withstand the grind of daily use, this underbody tool box offers reliable storage...
    09-020100622
    SKU:
    09-020100622
    Width Options:
    24 Inch
    Finish Options:
    Smooth
    Height Options:
    24 Inch
    Product Type:
    Toolboxes
    Length Options:
    72 Inch
    Material Options:
    Aluminum
    Make:
    Universal Items
    $1,199.99
    Qty in Cart: 0
    Price:
    $1,199.99
    Subtotal:
  • Aluminum Cab Rack W/ 50 Gallon Hydraulic Tank 76 X 68 Inch

    Aluminum Cab Rack W/ 50 Gallon Hydraulic Tank 76 X 68 Inch

    ICONIC

    $3,644.99
    Smooth Aluminum Cab Rack W/ Sight Temp Gauge On Side & 4 Mounting PortsWhen performance and simplicity matter, the 76 x 68 Inch Smooth Aluminum Cab Rack with Integrated 50 Gallon Tank delivers a...
    09-021100073
    SKU:
    09-021100073
    Capacity:
    50 Gallons
    Product Type:
    Cargo Control
    Material Options:
    Aluminum
    Finish Options:
    Smooth
    Width Options:
    76 Inch
    Height Options:
    68 Inch
    Make:
    Universal Items
    $3,644.99
    Qty in Cart: 0
    Price:
    $3,644.99
    Subtotal:
  • Brunner Stainless Steel Upper Cab Rack Light Bar W/ 8 Round 4 Inch Light Holes & 5 Round 2 Inch Light Holes

    Brunner Stainless Steel Upper Cab Rack Light Bar W/ 8 Round 4 Inch Light Holes & 5 Round 2 Inch Light Holes

    BRUNNER FABRICATION

    $1,247.99
    Upper Cab Rack Light Bar W/ 8 Round 4 Inch Light Holes & 5 Round 2 Inch Light Holes By BrunnerStrength, precision, and customization come together in the Brunner Upper Cab Rack Light Bar, engineered...
    09-0210110
    SKU:
    09-0210110
    Light Options:
    Without Lights
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Product Type:
    Exterior
    Ready To Ship:
    Yes
    $1,247.99
    Qty in Cart: 0
    Price:
    $1,247.99
    Subtotal:
  • 46 X 10 X 1.75 Inch Stainless Steel Rear Center Panel W/ 11 Round 3/4 Inch Light Holes

    46 X 10 X 1.75 Inch Stainless Steel Rear Center Panel W/ 11 Round 3/4 Inch Light Holes

    ARANDA TRUCK ACCESSORIES

    $223.99
    46 X 10 X 1.75 Inch Rear Center Panel W/ 11 Round Light HolesTransform your truck's rear-end with this 46 x 10 x 1.75 inch stainless steel rear center panel. Featuring eleven 3/4 inch light holes...
    09-011100150
    SKU:
    09-011100150
    Height Options:
    10 Inch
    Product Type:
    Bumpers
    Material Options:
    Stainless Steel
    Length Options:
    1 3/4 Inch
    Light Options:
    Without Lights
    Size Options:
    16 Gauge
    Location:
    Made In USA
    Width Options:
    46 Inch
    Make:
    Universal Items
    $223.99
    Qty in Cart: 0
    Price:
    $223.99
    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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