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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.
  • Product
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  • Quantity
  • Price
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  • LC 6 X 30 Inch Curved Exhaust Stack

    LC 6 X 30 Inch Curved Exhaust Stack

    LINCOLN CHROME

    $284.99
    6 X 30 Inch Curved Exhaust Stack By Lincoln ChromeThis LC 6 x 30 Inch Curved Exhaust Stack is designed to enhance both the appearance and performance of your truck. Made from durable chrome plated...
    09-086030082
    SKU:
    09-086030082
    Product Type:
    Exhaust
    Finish Options:
    Chrome-Plated
    Height Options:
    30 Inch
    Style Options:
    Curve Turn
    Location:
    Made In USA
    Diameter Options:
    6 To 5 Inch
    Material Options:
    Steel
    Make:
    Universal Items
    $284.99
    Qty in Cart: 0
    Price:
    $284.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Turnpike Truck Trim Stainless Steel Mud Flap Anti-Sails 24 X 14 Inch Pair

    Turnpike Truck Trim Stainless Steel Mud Flap Anti-Sails 24 X 14 Inch Pair

    TURNPIKE TRUCK TRIM

    $101.99
    24 X 14 Inch Pair Stainless Steel Mud Flap Anti-Sails By Turnpike Truck Trim* High Quality Mud Flap Anti Sail* Made Of 430 Stainless Steel* Blank (No Holes)* Dimensions:  - 24 Inch Width  - 14 Inch...
    09-0507411
    SKU:
    09-0507411
    Width Options:
    24 Inch
    Height Options:
    14 Inch
    Product Type:
    Mud Flaps
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $101.99
    Qty in Cart: 0
    Price:
    $101.99
    Subtotal:
  • 24 X 24 Inch Black Mud Flap Smooth Front W/ Ribbed Back Design

    24 X 24 Inch Black Mud Flap Smooth Front W/ Ribbed Back Design

    UNITED PACIFIC

    $19.59
    Black Mud Flap Smooth Front W/ Ribbed Back Design 24 X 24 Inch* High Quality Mud Flap* Made Of PROFlex Recycled Rubber Polymer Blend* Smooth Front With Ribbed Back Design* Black* Dimensions:  - 24...
    09-050700285
    SKU:
    09-050700285
    Color:
    Black
    Material Options:
    Rubber
    Height Options:
    24 Inch
    Product Type:
    Mud Flaps
    Width Options:
    24 Inch
    Length Options:
    1/4 Inch
    Style Options:
    Ribbed
    Make:
    Universal Items
    $19.59
    Qty in Cart: 0
    Price:
    $19.59
    Subtotal:
  • LC 7 X 84 Inch Chrome Turn Out Stack

    LC 7 X 84 Inch Chrome Turn Out Stack

    LINCOLN CHROME

    $785.99
    7 X 84 Inch Chrome Turn Out Stack By Lincoln ChromeThis LC 7 x 84 Inch Chrome Turn Out Stack is built to deliver strength, style, and dependable performance for heavy-duty trucks. Constructed from...
    09-087084073
    SKU:
    09-087084073
    Product Type:
    Exhaust
    Diameter Options:
    7 Inch
    Location:
    Made In USA
    Material Options:
    Steel
    Finish Options:
    Chrome-Plated
    Style Options:
    Curve Turn
    Height Options:
    84 Inch
    Make:
    Universal Items
    $785.99
    Qty in Cart: 0
    Price:
    $785.99
    Subtotal:
  • Standard Shock Relocate 4 Inch W/ 3/4 Pin

    Standard Shock Relocate 4 Inch W/ 3/4 Pin

    LOAD-SHARE SUSPENSIONS

    $236.99
    4 Inch Standard Shock Relocate W/ 3/4 Pin* High Quality Shock Relocate Kit* Designed To Relocate Shock Mounting Position* Standard Duty Application (Up To 12,000 Pound Capacity)* For 4 Inch Leaf...
    09-05090108
    SKU:
    09-05090108
    Product Type:
    Frame & Chassis
    Position:
    Kit Full
    Make:
    Universal Items
    $236.99
    Qty in Cart: 0
    Price:
    $236.99
    Subtotal:
  • Aluminum Cab Rack W/ Chrome Plated Stainless Steel Door 68 X 80 Inch

    Aluminum Cab Rack W/ Chrome Plated Stainless Steel Door 68 X 80 Inch

    ALTTEC

    $2,111.99
    Aluminum Cab Rack W/ Center Tool Box, 2 Chain Racks & 2 Aluminum Trays* High Quality Cab Rack* Made Of Aluminum* Includes:  - Chrome Plated Stainless Steel Door  - Center Tool Box  - (2) Chain Racks ...
    09-0213010
    SKU:
    09-0213010
    Product Type:
    Cargo Control
    Ready To Ship:
    Yes
    Width Options:
    80 Inch
    Height Options:
    68 Inch
    Material Options:
    Aluminum
    Make:
    Universal Items
    $2,111.99
    Qty in Cart: 0
    Price:
    $2,111.99
    Subtotal:
  • Holland No-Tilt ILS Slider Retrofit KIt

    Holland No-Tilt ILS Slider Retrofit KIt

    OPP - ORIGINAL PARTS PROGRAM

    $1,234.99
    Holland ILS Slider Retrofit Kit No-Tilt* High Quality Fifth Wheel Slider Retrofit Kit* Holland ILS No-Tilt Integrated Low-Weight Slider Design* Lightweight Bolt-On Construction* Slide-On No-Weld...
    09-051100934
    SKU:
    09-051100934
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $1,234.99
    Qty in Cart: 0
    Price:
    $1,234.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Chrome Push-On Bullet Nut Covers 11/16 Inch X 1 5/16 Inch - 50 Piece

    Chrome Push-On Bullet Nut Covers 11/16 Inch X 1 5/16 Inch - 50 Piece

    UNITED PACIFIC

    $48.12
    50 Piece Chrome Push On Bullet Nut Covers 11/16 Inch X 1 5/16 Inch* High Quality Nut Cover* Made Of Plastic* Triple Chrome Plating* Bullet Head Design* Used For Hex Nuts And Bolts* Dimensions:  -...
    09-05060099
    SKU:
    09-05060099
    Diameter Options:
    11/16 Inch
    Material Options:
    Plastic/Poly
    Finish Options:
    Chrome-Plated
    Product Type:
    Frame & Chassis
    Type Options:
    Push On
    Height Options:
    2 Inch
    Style Options:
    Bullet
    Make:
    Universal Items
    $48.12
    Qty in Cart: 0
    Price:
    $48.12
    Subtotal:
  • FREE SHIPPING OVER $249
    Bottom Bolt Thru Mud Flap Plates Stainless Steel 24 Inch X 4 Inch

    Bottom Bolt Thru Mud Flap Plates Stainless Steel 24 Inch X 4 Inch

    UNITED PACIFIC

    $58.99
    24 Inch X 4 Inch Stainless Steel Bottom Bolt Thru Mud Flap Plates* High Quality Bottom Mud Flap Plate* Made Of 304 Stainless Steel* Polished Shine Finish* Mounting Hardware Included* Dimensions:  -...
    09-050700281
    SKU:
    09-050700281
    Material Options:
    Stainless Steel
    Finish Options:
    Polished
    Product Type:
    Mud Flaps
    Height Options:
    4 Inch
    Width Options:
    24 Inch
    Type Options:
    Bolt Mount
    Make:
    Universal Items
    $58.99
    Qty in Cart: 0
    Price:
    $58.99
    Subtotal:
  • Stainless Steel Air Cylinder For Bumper Flip Kit

    Stainless Steel Air Cylinder For Bumper Flip Kit

    AFTERMARKET

    $197.99
    Air Cylinder For Bumper Flip Kit Stainless Steel* High Quality Air Cylinder* Made Of Stainless Steel* Designed For Bumper Flip Kit (Not Included)* Includes:  - Wear Ring  - Standard Bronze Rod...
    09-010800002
    SKU:
    09-010800002
    Product Type:
    Bumpers
    Ready To Ship:
    Yes
    Material Options:
    Stainless Steel
    Diameter Options:
    2 Inch
    Make:
    Universal Items
    $197.99
    Qty in Cart: 0
    Price:
    $197.99
    Subtotal:
  • Stainless Steel Rear Light T-Bar 96 X 8 Inch W/ 8 4 Inch Light Holes

    Stainless Steel Rear Light T-Bar 96 X 8 Inch W/ 8 4 Inch Light Holes

    AFTERMARKET

    $1,073.99
    Rear Light T-Bar 96 X 8 Inch Stainless Steel W/ 8 4 Inch Light Holes* High Quality Rear Light Bar* Made Of 14 Gauge 304 Stainless Steel* Mirror Finish* T-Bar Design* Includes:  - (8) Round 4 Inch...
    09-011000760
    SKU:
    09-011000760
    Product Type:
    Bumpers
    Material Options:
    Stainless Steel
    Light Options:
    Without Lights
    Size Options:
    14 Gauge
    Finish Options:
    Polished
    Height Options:
    18 Inch
    Width Options:
    96 Inch
    Make:
    Universal Items
    $1,073.99
    Qty in Cart: 0
    Price:
    $1,073.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Above Door Dome Light Plate Stainless Steel For Kenworth T600, T660, T800 & W900L/B

    Above Door Dome Light Plate Stainless Steel For Kenworth T600, T660, T800 & W900L/B

    UNITED PACIFIC

    $25.50
    Stainless Steel Above Door Dome Light Plate Fits Kenworth T600, T660, T800 & W900L/B* High Quality Dome Light Plate* Made Of 18 Gauge 304 Stainless Steel* Polished Shine Finish* Allows Installation...
    02-1550044
    SKU:
    02-1550044
    Finish Options:
    Polished
    Material Options:
    Stainless Steel
    Length Options:
    5 1/2 Inch
    Product Type:
    Interior
    Light Options:
    Without Lights
    Width Options:
    4 Inch
    Size Options:
    18 Gauge
    Make:
    Kenworth
    $25.50
    Qty in Cart: 0
    Price:
    $25.50
    Subtotal:
  • FREE SHIPPING OVER $249
    Black Rubber Shifter Boot 4-7/8 X 7-1/4 Inch For Kenworth Replaces K042702

    Black Rubber Shifter Boot 4-7/8 X 7-1/4 Inch For Kenworth Replaces K042702

    UNITED PACIFIC

    $17.10
    Black Rubber Shifter Boot 4-7/8 X 7-1/4 Inch Replaces K042702 Fits Kenworth* High Quality Shifter Boot* Made Of Rubber* Black* Dimensions:  - 4-7/8 Inch Height  - 7-1/4 Inch Overall Width* Sold...
    02-15130071
    SKU:
    02-15130071
    Material Options:
    Rubber
    Color:
    Black
    Product Type:
    Interior
    Height Options:
    4 3/4 Inch
    Width Options:
    7 1/4 Inch
    Make:
    Kenworth
    $17.10
    Qty in Cart: 0
    Price:
    $17.10
    Subtotal:
  • Aluminum Air Intake Panel - Passenger Side For Kenworth

    Aluminum Air Intake Panel - Passenger Side For Kenworth

    BESTFIT TRUCK PARTS

    $172.36
    Passenger Side Air Intake Panel - Aluminum Fits KenworthThis Aluminum Air Intake Panel for Kenworth passenger side applications is built to combine durability, function, and clean styling. Made from...
    02-123000123
    SKU:
    02-123000123
    Material Options:
    Aluminum
    Position:
    Passenger Side
    Make:
    Kenworth
    Product Type:
    Hood Parts & Acc.
    Ready To Ship:
    Yes
    $172.36
    Qty in Cart: 0
    Price:
    $172.36
    Subtotal:
  • Aluminum Air Intake Panel - Driver Side For Kenworth

    Aluminum Air Intake Panel - Driver Side For Kenworth

    BESTFIT TRUCK PARTS

    $172.36
    Driver Side Air Intake Panel - Aluminum Fits KenworthThis Aluminum Air Intake Panel for Kenworth driver side applications is built to combine durability, function, and clean styling. Made from...
    02-123000119
    SKU:
    02-123000119
    Position:
    Driver Side
    Material Options:
    Aluminum
    Product Type:
    Hood Parts & Acc.
    Ready To Ship:
    Yes
    $172.36
    Qty in Cart: 0
    Price:
    $172.36
    Subtotal:
  • Aluminum Fuel Tank 100 Gallon - 24.5 X 50 Inch - Center Fill For Kenworth 2008 & Newer

    Aluminum Fuel Tank 100 Gallon - 24.5 X 50 Inch - Center Fill For Kenworth 2008 & Newer

    AFTERMARKET

    $646.99
    100 Gallon - 24.5 X 50 Inch Aluminum Fuel Tank Fits Kenworth T600 2008 & Newer* High Quality Fuel Tank* Made Of Aluminum* Center Fill* 100 Gallon* Dimensions:  - 50 Inch Overall Length  - 48 Inch...
    02-060010009
    SKU:
    02-060010009
    Product Type:
    Fuel Tanks
    Ready To Ship:
    Yes
    Material Options:
    Aluminum
    Length Options:
    50 Inch
    Capacity:
    100 Gallons
    Position:
    Center Fill
    Diameter Options:
    24 1/2 Inch
    Make:
    Kenworth
    Type Options:
    Center Fill
    $646.99
    Qty in Cart: 0
    Price:
    $646.99
    Subtotal:
  • On Sale
    Limited Quantity Available
    142 Inch SS The Boss Long Drop Full Fender W/ Rolled Edge

    142 Inch SS The Boss Long Drop Full Fender W/ Rolled Edge

    TRUX ACCESSORIES

    Now: $1,075.35
    Was: $1,221.99
    29 X 24 X 142 Inch Long Drop 14 Gauge Stainless Steel Full Tandem FendersThis high quality 142 inch Stainless Steel "The Boss" Long Drop Full Fender with a Rolled Edge design. The fender has a long...
    09-11030302
    SKU:
    09-11030302
    Product Type:
    Rear Fenders
    Material Options:
    Stainless Steel
    Light Options:
    Without Lights
    Make:
    Universal Items
    Truck Class:
    Heavy Duty
    Now: $1,075.35
    Was: $1,221.99
    Qty in Cart: 0
    Price:
    Now: $1,075.35
    Was: $1,221.99
    Subtotal:
  • Merritt Aluminum Dyna Light 3 Door Vault Cab Rack, 68 In X 80 In, W/ Stainless Steel or Aluminum Doors, Dual Chain Racks, 2 Shelves

    Merritt Aluminum Dyna Light 3 Door Vault Cab Rack, 68 In X 80 In, W/ Stainless Steel or Aluminum Doors, Dual Chain Racks, 2 Shelves

    MERRITT

    $6,302.99 - $8,294.99
    Organize your tools and cargo with the Merritt Aluminum Dyna Light 3 Door Vault Cab Rack, crafted from premium aluminum with stainless steel or aluminum doors for a combination of strength and style...
    PPR_301005
    SKU:
    PPR_301005
    Finish Options:
    Smooth
    Material Options:
    Aluminum
    Style Options:
    3 Door
    Height Options:
    68 Inch
    Width Options:
    80 Inch
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Finish Options:
    Polished
    Product Type:
    Cargo Control
    $6,302.99 - $8,294.99
    Qty in Cart: 0
    Price:
    $6,302.99 - $8,294.99
    Subtotal:
  • 68 Inch Diamond Plate Cab Rack W/ 2 Half-Trays, 2 Chain Hangers, Bar Window, Tool Box Under Window

    68 Inch Diamond Plate Cab Rack W/ 2 Half-Trays, 2 Chain Hangers, Bar Window, Tool Box Under Window

    STURDY-LITE

    $2,530.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models of TrucksSturdy Lite Aluminum Cab Rack W/ 45 Degree Corners, Jail Bar Window & Toolbox 68 X 80 InchAluminum Cab...
    PPR_301004
    SKU:
    PPR_301004
    Finish Options:
    Diamond Plate
    Light Options:
    Without Lights
    Product Type:
    Cargo Control
    Truck Class:
    Universal
    Material Options:
    Aluminum
    Width Options:
    80 Inch
    Width Options:
    72 Inch
    Height Options:
    68 Inch
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    $2,530.99
    Qty in Cart: 0
    Price:
    $2,530.99
    Subtotal:
  • Herd 100 Series Cab Guard With Long Or Short Chain Tray

    Herd 100 Series Cab Guard With Long Or Short Chain Tray

    HERD BUMPERS

    $1,983.99 - $2,096.99
    Keep your cab and chains protected with the Herd 100 Series Cab Guard With Long or Short Chain Tray. Aluminum construction with a hard coat finish ensures long-term durability, while long chain trays...
    PPR_301003
    SKU:
    PPR_301003
    Height Options:
    68 Inch
    Material Options:
    Aluminum
    Width Options:
    70 Inch
    Height Options:
    75 Inch
    Width Options:
    80 Inch
    Product Type:
    Cargo Control
    Make:
    Universal Items
    $1,983.99 - $2,096.99
    Qty in Cart: 0
    Price:
    $1,983.99 - $2,096.99
    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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