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
  • Single Convolute Air Spring Replaces 354-7462, 7462, ABSP1B1507462, FS7462, W01-358-7462, W013587462

    Single Convolute Air Spring Replaces 354-7462, 7462, ABSP1B1507462, FS7462, W01-358-7462, W013587462

    AFTERMARKET

    $113.99
    Single Convolute Air SpringMaintain reliable suspension performance with the Econoride Single Convolute Air Spring. Constructed with a single convoluted design, durable rubber lift bags, and a...
    09-05100145
    SKU:
    09-05100145
    Style Options:
    Single Convolute
    Product Type:
    Frame & Chassis
    Material Options:
    Rubber
    Make:
    Universal Items
    $113.99
    Qty in Cart: 0
    Price:
    $113.99
    Subtotal:
  • Chrome Train Horn Diaphragm

    Chrome Train Horn Diaphragm

    TRUX ACCESSORIES

    $10.03
    6.5 OD, 5 ID X 0.1 Inch Train Horn Diaphragm* High Quality Train Horn Diaphragm Replacement* Fits Trux 3 Bell And 4 Bell Model Train Horns Only* Remove Back Of Train Horn Cap And Attach Using...
    09-05130015
    SKU:
    09-05130015
    Style Options:
    4 Bell
    Material Options:
    Steel
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    Diameter Options:
    6 1/2 Inch
    Finish Options:
    Chrome-Plated
    Ready To Ship:
    Yes
    $10.03
    Qty in Cart: 0
    Price:
    $10.03
    Subtotal:
  • 19 X 30 Inch Black Mud Flap

    19 X 30 Inch Black Mud Flap

    TRAMEC SLOAN

    $56.99
    Aerodynamic Straight Design Black Mud Flap* High Quality Mud Flap* Aerodynamic Straight Design* US EPA Smartway Program Compatible* Unique Pattern Channels Airflow* No Anti-Sail Brackets Needed*...
    09-05070409
    SKU:
    09-05070409
    Product Type:
    Mud Flaps
    Color:
    Black
    Width Options:
    19 Inch
    Height Options:
    30 Inch
    Make:
    Universal Items
    $56.99
    Qty in Cart: 0
    Price:
    $56.99
    Subtotal:
  • Stainless Steel Wave Bottom Mud Flap Weight 24 Inch Bolt On

    Stainless Steel Wave Bottom Mud Flap Weight 24 Inch Bolt On

    TRUX ACCESSORIES

    $65.99
    Bolt On Wave Bottom Mud Flap Weight 24 Inch Stainless SteelAdd a bold custom detail to your truck with the24 Inch Stainless Steel Wave Bottom Mud Flap Weight. Made from quality stainless steel, this...
    09-05070194
    SKU:
    09-05070194
    Material Options:
    Stainless Steel
    Product Type:
    Mud Flaps
    Width Options:
    24 Inch
    Make:
    Universal Items
    Ready To Ship:
    Yes
    Type Options:
    Bolt Mount
    Height Options:
    6 Inch
    Length Options:
    1/2 Inch
    $65.99
    Qty in Cart: 0
    Price:
    $65.99
    Subtotal:
  • 2 Inch Stainless Steel Mud Flap Hanger End Plug

    2 Inch Stainless Steel Mud Flap Hanger End Plug

    UNITED PACIFIC

    $5.19
    304 Stainless Steel Mud Flap Hanger End Plug* High Quality Mud Flap Hanger End Plug* Covers The End On Spring Loaded Mud Flap Hangers* Polished 304 Stainless Steel* 2-1/8 Inch Width* 3-1/8 Inch...
    09-05070183
    SKU:
    09-05070183
    Product Type:
    Mud Flaps
    Material Options:
    Stainless Steel
    Finish Options:
    Polished
    Make:
    Universal Items
    Length Options:
    3 1/8 Inch
    Width Options:
    2 1/8 Inch
    $5.19
    Qty in Cart: 0
    Price:
    $5.19
    Subtotal:
  • Chrome Plated Steel Sitting Nude Lady- Left Facing

    Chrome Plated Steel Sitting Nude Lady- Left Facing

    GRAND GENERAL

    $22.89
    11 X 17 Inch Chrome Plated Steel Sitting Nude Lady* High Quality Cut Outs* Sitting Nude Lady* Facing Left* Chrome Plated Steel* 11 Inch Height* 17 Inch Width* Rear Mount Stud* Sold Individually*...
    09-05070255
    SKU:
    09-05070255
    Product Type:
    Mud Flaps
    Type Options:
    Rear Mount
    Finish Options:
    Chrome-Plated
    Height Options:
    11 Inch
    Width Options:
    17 Inch
    Material Options:
    Steel
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $22.89
    Qty in Cart: 0
    Price:
    $22.89
    Subtotal:
  • Stainless Steel Anti Sail Flap Plates 14 X 1 x 18 Inch

    Stainless Steel Anti Sail Flap Plates 14 X 1 x 18 Inch

    TRUX ACCESSORIES

    $113.99
    14 X 18 X 1 Inch Anti Sail Flap Plates Stainless SteelAdd durability and support to your truck's mud flap setup with theStainless Steel Anti Sail Flap Plates 14 x 1 x 18 Inch. Built from quality...
    09-05070190
    SKU:
    09-05070190
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Length Options:
    1 Inch
    Width Options:
    14 Inch
    Height Options:
    18 Inch
    Ready To Ship:
    Yes
    Product Type:
    Mud Flaps
    $113.99
    Qty in Cart: 0
    Price:
    $113.99
    Subtotal:
  • 24 X 24 Black Rubber Mud Flap

    24 X 24 Black Rubber Mud Flap

    AUTOMANN USA

    $21.96
    Black Rubber Mud Flap Replaces 2424HD. 82424* High Quality Mud Flap* Thick V Cord Rubber For Extra Strength* Black* Dimensions:  - 24 Inch Length  - 24 Inch Width  - 1/2 Inch Thick* Sold...
    09-05070095
    SKU:
    09-05070095
    Height Options:
    24 Inch
    Width Options:
    24 Inch
    Length Options:
    1/2 Inch
    Material Options:
    Rubber
    Color:
    Black
    Product Type:
    Mud Flaps
    Make:
    Universal Items
    $21.96
    Qty in Cart: 0
    Price:
    $21.96
    Subtotal:
  • Stainless Steel Nut Cover W/ Skirt

    Stainless Steel Nut Cover W/ Skirt

    REALWHEELS

    $3.31
    304 Stainless Steel Nut Cover- 1.25 Inch Height* High Quality Lug Nut Cover* With Skirt* 304 Stainless Steel* 1.25 Inch Height* 1 Inch Skirt* Made In USA* Sold Individually* Warranty On Lug Nut...
    09-05060093
    SKU:
    09-05060093
    Product Type:
    Wheels
    Height Options:
    1 1/4 Inch
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Finish Options:
    Polished
    Make:
    Universal Items
    $3.31
    Qty in Cart: 0
    Price:
    $3.31
    Subtotal:
  • 24 X 24 Inch White Poly Mud Flap

    24 X 24 Inch White Poly Mud Flap

    AUTOMANN USA

    $24.28
    White Poly Mud Flap Replaces 11473Protect your truck and surrounding vehicles with this 24 X 24 Inch White Poly Mud Flap. Made from heavy-duty polyethylene, it has a ribbed anti-spray surface to...
    09-05070100
    SKU:
    09-05070100
    Material Options:
    Plastic/Poly
    Color:
    White
    Product Type:
    Mud Flaps
    Height Options:
    24 Inch
    Width Options:
    24 Inch
    Length Options:
    1/2 Inch
    Make:
    Universal Items
    $24.28
    Qty in Cart: 0
    Price:
    $24.28
    Subtotal:
  • 30 Inch Stainless Steel Mud Flap Hanger W/ Reflective Tape

    30 Inch Stainless Steel Mud Flap Hanger W/ Reflective Tape

    AFTERMARKET

    $267.99
    30 Inch Mud Flap Hanger W/ Reflective TapeProtect your truck and improve visibility on the road with this 30 Inch Stainless Steel Mud Flap Hanger W/ Reflective Tape. Built from 201 stainless steel,...
    09-05070093
    SKU:
    09-05070093
    Material Options:
    Stainless Steel
    Product Type:
    Mud Flaps
    Width Options:
    30 Inch
    Make:
    Universal Items
    $267.99
    Qty in Cart: 0
    Price:
    $267.99
    Subtotal:
  • Aluminum Replacement Step For Pro-Tech Aluminum Tool Box

    Aluminum Replacement Step For Pro-Tech Aluminum Tool Box

    PRO-TECH INDUSTRIES

    $151.99
    Aluminum Replacement StepRestore convenience to your Pro-Tech Aluminum Tool Box with the Aluminum Replacement Step, designed to provide heavy-duty support and reliable usage. Made from high-quality...
    09-050500048
    SKU:
    09-050500048
    Material Options:
    Aluminum
    Product Type:
    Toolboxes
    Make:
    Universal Items
    $151.99
    Qty in Cart: 0
    Price:
    $151.99
    Subtotal:
  • Chrome Plastic Flat Top Nut Covers- Pack of 10

    Chrome Plastic Flat Top Nut Covers- Pack of 10

    4 STATE TRUCKS

    $9.54
    Push On Flat Top Nut Covers* High Quality Nut Cover* (10) Flat Top Nut Covers* For Hex Nuts And Bolts* Chrome Plastic* 1 Inch Height* 5/8 Inch Nut Size* Push-On* Sold As Pack* Warranty On Nut Covers...
    09-05060072
    SKU:
    09-05060072
    Diameter Options:
    5/8 Inch
    Material Options:
    Plastic/Poly
    Product Type:
    Wheels
    Finish Options:
    Chrome-Plated
    Style Options:
    Flat Top
    Length Options:
    1 Inch
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $9.54
    Qty in Cart: 0
    Price:
    $9.54
    Subtotal:
  • Stainless Steel Deck Plate Cover- Treaded

    Stainless Steel Deck Plate Cover- Treaded

    ROADWORKS

    $259.99
    Stainless Steel Deck Plate Cover Without Cutouts* High Quality Deck Plate* Treaded* No Cutouts* Use With Double Sided Airline Boxes* Mounting Brackets Included* Stainless Steel* 12 Inch* Sold...
    09-05030074
    SKU:
    09-05030074
    Length Options:
    12 Inch
    Material Options:
    Stainless Steel
    Type Options:
    Standard Mount
    Product Type:
    Frame & Chassis
    Size Options:
    18 Gauge
    Make:
    Universal Items
    $259.99
    Qty in Cart: 0
    Price:
    $259.99
    Subtotal:
  • Low Pressure Switch Replaces 228750. 288522. 288522N. R955228750N. 034042

    Low Pressure Switch Replaces 228750. 288522. 288522N. R955228750N. 034042

    AUTOMANN USA

    $11.65
    LP3 Type Low Pressure Switch* High Quality Low Pressure Switch* LP3 Type* 2 Terminals* At Air Pressure Above 60 PSI, Contacts Are Open. Closes At 60 PSI Dropping Pressure* Sold Individually* Warranty...
    09-05040096
    SKU:
    09-05040096
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $11.65
    Qty in Cart: 0
    Price:
    $11.65
    Subtotal:
  • 24 X 5 Inch Step Mat

    24 X 5 Inch Step Mat

    AUTOMANN USA

    $28.09
    Step Mat- 24 X 5 InchKeep your truck steps safe and slip-free with this 24 X 5 Inch Step Mat. Measuring 24 inches long and 5 inches wide, this high-quality mat provides durable, anti-slip protection...
    09-05050001
    SKU:
    09-05050001
    Width Options:
    5 Inch
    Length Options:
    24 Inch
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $28.09
    Qty in Cart: 0
    Price:
    $28.09
    Subtotal:
  • Stainless Steel Air Line Box With Holes For 2 Air Lines, 7-Way & 6 Round 2 Inch Red/ Clear Flat Lights

    Stainless Steel Air Line Box With Holes For 2 Air Lines, 7-Way & 6 Round 2 Inch Red/ Clear Flat Lights

    ROADWORKS

    $682.99
    Air Line Box With Holes For 2 Air Lines, 7-Way & 6 Round 2 Inch Red/ Clear Flat Lights* High Quality Air Line Box* Single Connector* Includes:  - (1) 7-Way Hole  - (2) Air Line Holes  - (6) Round 2...
    09-050400029
    SKU:
    09-050400029
    Size Options:
    14 Gauge
    Material Options:
    Stainless Steel
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    Color:
    Red/Clear
    Light Options:
    With Lights
    Location:
    Made In USA
    $682.99
    Qty in Cart: 0
    Price:
    $682.99
    Subtotal:
  • HCVC Mini Console Replaces Hcvc-195-Hp-3D. Hcvc195Hp3D

    HCVC Mini Console Replaces Hcvc-195-Hp-3D. Hcvc195Hp3D

    AFTERMARKET

    $1,035.99
    HCVC Mini Console* High Quality Hcvc Mini Console* Positive Detent Lock In Neutral Position* Metered Hoist Control* Push To Connect Fittings For 1/4" DOT Tubing* Sold Individually* Warranty On Hcvc...
    09-02500208
    SKU:
    09-02500208
    Product Type:
    Cargo Control
    Make:
    Universal Items
    $1,035.99
    Qty in Cart: 0
    Price:
    $1,035.99
    Subtotal:
  • 48 X 34 X 1.25 Inch Diamond Plate Aluminum Deck Plate Cover

    48 X 34 X 1.25 Inch Diamond Plate Aluminum Deck Plate Cover

    PRO-TECH INDUSTRIES

    $488.99
    Blind Mount Diamond Plate Aluminum Deck Plate Cover* High Quality Deck Cover* Mounting Kit Included* 0.105 Diamond Plate Aluminum* 1-1/4 Inch Height* 34 Inch Width* 48 Inch Length* Blind Mount* Sold...
    09-05030016
    SKU:
    09-05030016
    Product Type:
    Frame & Chassis
    Material Options:
    Aluminum
    Finish Options:
    Diamond Plate
    Position:
    Kit Full
    Height Options:
    1 1/4 Inch
    Type Options:
    Blind Mount
    Length Options:
    48 Inch
    Width Options:
    34 Inch
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $488.99
    Qty in Cart: 0
    Price:
    $488.99
    Subtotal:
  • Hydraulic Pump Replaces P5151

    Hydraulic Pump Replaces P5151

    AFTERMARKET

    $965.99
    Hydraulic Pump- 3000 PSI* High Quality Hydraulic Pump* Sold Individually* Warranty On Hydraulic Pumps Against Defects In Workmanship & Material From Date Of Purchase* Cross Ref Number P5151** This...
    09-02500125
    SKU:
    09-02500125
    Make:
    Universal Items
    Product Type:
    Cargo Control
    $965.99
    Qty in Cart: 0
    Price:
    $965.99
    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!