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
  • Round Clearance Marker LED Light

    Round Clearance Marker LED Light

    MAXXIMA

    $12.42 - $13.77
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks2 Inch Round 9 Diode Clearance Marker LED Light- Amber LED/ Amber Lens2 Inch Round Amber 9 Diode...
    PPR_300746
    SKU:
    PPR_300746
    Color:
    Amber
    Diameter Options:
    2 1/2 Inch
    Product Type:
    Lighting
    Material Options:
    Plastic/Poly
    Diameter Options:
    2 Inch
    Shape Options:
    Round
    Color:
    Red
    Type Options:
    Grommet Mount
    Make:
    Universal Items
    $12.42 - $13.77
    Qty in Cart: 0
    Price:
    $12.42 - $13.77
    Subtotal:
  • 3/4 Inch Clearance Marker LED Light W/ Color Options

    3/4 Inch Clearance Marker LED Light W/ Color Options

    MAXXIMA

    $13.81
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks3/4 Inch Clearance Marker LED Light- Amber LED/ Amber Lens3/4 Inch Amber Clearance Marker LED Light W/...
    PPR_300747
    SKU:
    PPR_300747
    Color:
    Amber
    Height Options:
    1 Inch
    Product Type:
    Lighting
    Color:
    Amber/Clear
    Diameter Options:
    3/4 Inch
    Type Options:
    Grommet Mount
    Material Options:
    Plastic/Poly
    Color:
    Red/Clear
    Shape Options:
    Round
    Make:
    Universal Items
    $13.81
    Qty in Cart: 0
    Price:
    $13.81
    Subtotal:
  • Leaf Spring Pin 1.0625 Inch W/ Length Options

    Leaf Spring Pin 1.0625 Inch W/ Length Options

    DAYTON / DORMAN

    $29.53 - $31.11
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks1.0625 X 6.969 Inch Leaf Spring Pin Replaces 034013249, 079581000, 34013249Leaf Spring Pin- 1.0625 X 6...
    PPR_300744
    SKU:
    PPR_300744
    Length Options:
    7 3/4 Inch
    Diameter Options:
    1 Inch
    Material Options:
    Steel
    Length Options:
    7 Inch
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $29.53 - $31.11
    Qty in Cart: 0
    Price:
    $29.53 - $31.11
    Subtotal:
  • 3.344 Inch Serrated Stud Pilot Wheel Stud Left/Right Hand

    3.344 Inch Serrated Stud Pilot Wheel Stud Left/Right Hand

    DAYTON / DORMAN

    $27.53
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks3.344 Inch Serrated Stud Pilot Wheel Stud- Left Hand3.344 Inch Left Hand Serrated Wheel Stud Replaces...
    PPR_300743
    SKU:
    PPR_300743
    Product Type:
    Wheels
    Material Options:
    Steel
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $27.53
    Qty in Cart: 0
    Price:
    $27.53
    Subtotal:
  • 15 X 1 Inch Surface Mount Back Up Strip LED Light W/ Gasket- White LED/ Clear Lens

    15 X 1 Inch Surface Mount Back Up Strip LED Light W/ Gasket- White LED/ Clear Lens

    MAXXIMA

    $46.60
    20 Diode White Surface Mount Back Up Strip LED Light W/ Gasket & Clear LensEnhance safety and confidence while reversing with this high-quality 15 x 1 Inch Surface Mount Backup Strip LED Light...
    MX-M63318-A-GSKT
    SKU:
    MX-M63318-A-GSKT
    Color:
    White/Clear
    Type Options:
    Surface Mount
    Length Options:
    15 Inch
    Product Type:
    Lighting
    Width Options:
    1 Inch
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    $46.60
    Qty in Cart: 0
    Price:
    $46.60
    Subtotal:
  • 15 X 1 Inch Surface Mount Stop/Turn/Tail LED Light W/ Gasket- Red LED/ Red Lens

    15 X 1 Inch Surface Mount Stop/Turn/Tail LED Light W/ Gasket- Red LED/ Red Lens

    MAXXIMA

    $24.74
    20 Diode Red Surface Mount Stop/Turn/Tail LED Light W/ Gasket & Red LensImprove signaling performance with this durable 15 x 1 Inch Surface Mount Stop/Turn/Tail LED Light engineered for...
    MX-M63318R-A-GSKT
    SKU:
    MX-M63318R-A-GSKT
    Material Options:
    Plastic/Poly
    Product Type:
    Lighting
    Length Options:
    15 Inch
    Width Options:
    1 Inch
    Color:
    Red
    Type Options:
    Surface Mount
    Make:
    Universal Items
    $24.74
    Qty in Cart: 0
    Price:
    $24.74
    Subtotal:
  • 1.65 X 4.5 Inch Rectangular Clearance Marker LED Light & Reflector- Amber LED/ Amber Lens

    1.65 X 4.5 Inch Rectangular Clearance Marker LED Light & Reflector- Amber LED/ Amber Lens

    MAXXIMA

    $14.25
    1.65 X 4.5 Inch Amber Rectangular Clearance Marker LED Light & Reflector W/ Amber LensGet dependable performance and increased road visibility with this rectangular 1.65 x 4.5 inch LED clearance...
    MX-M17100Y-DV
    SKU:
    MX-M17100Y-DV
    Color:
    Amber
    Product Type:
    Lighting
    Material Options:
    Plastic/Poly
    Length Options:
    4 1/2 Inch
    Shape Options:
    Rectangular
    Width Options:
    1 5/8 Inch
    Type Options:
    Surface Mount
    Make:
    Universal Items
    $14.25
    Qty in Cart: 0
    Price:
    $14.25
    Subtotal:
  • 2.5 Inch 8 Diode Clearance Marker LED Light- Amber LED/ Amber lens

    2.5 Inch 8 Diode Clearance Marker LED Light- Amber LED/ Amber lens

    MAXXIMA

    $9.06
    2.5 Inch 8 Diode Amber Clearance Marker LED Light W/ Amber LensUpgrade your truck's visibility and style with this 2.5 Inch 8 Diode Clearance Marker LED Light featuring bright amber LEDs and a...
    MX-M16280ABS
    SKU:
    MX-M16280ABS
    Material Options:
    Plastic/Poly
    Color:
    Amber
    Diameter Options:
    2 1/2 Inch
    Shape Options:
    Round
    Type Options:
    Grommet Mount
    Product Type:
    Lighting
    Make:
    Universal Items
    $9.06
    Qty in Cart: 0
    Price:
    $9.06
    Subtotal:
  • 16.25 X 2.13 Inch Low Profile Lighting ID Bar- Red LED/ Red Lens

    16.25 X 2.13 Inch Low Profile Lighting ID Bar- Red LED/ Red Lens

    MAXXIMA

    $44.09
    16.25 X 2.13 Inch Red Low Profile Lighting ID Bar W/ Red LensUpgrade your truck's safety and visibility with this 16.25 x 2.13 Inch Low Profile Lighting ID Bar featuring bright red LEDs and a durable...
    MX-M09410R-RM3
    SKU:
    MX-M09410R-RM3
    Finish Options:
    Black Powder Coat
    Color:
    Red
    Product Type:
    Lighting
    Length Options:
    16 1/4 Inch
    Material Options:
    Aluminum
    Type Options:
    Surface Mount
    Height Options:
    2 Inch
    Make:
    Universal Items
    $44.09
    Qty in Cart: 0
    Price:
    $44.09
    Subtotal:
  • 2.5 Inch Round Auxiliary Park Turn LED Light- Amber LED/ Amber Lens

    2.5 Inch Round Auxiliary Park Turn LED Light- Amber LED/ Amber Lens

    MAXXIMA

    $11.22
    2.5 Inch Amber Round Auxiliary Park Turn LED Light W/ Amber LensEnhance safety and visibility with this premium auxiliary park turn LED light, designed in a compact 2.5 inch round form. The amber...
    MX-M11300YAT
    SKU:
    MX-M11300YAT
    Material Options:
    Plastic/Poly
    Diameter Options:
    2 1/2 Inch
    Color:
    Amber
    Product Type:
    Lighting
    Make:
    Universal Items
    $11.22
    Qty in Cart: 0
    Price:
    $11.22
    Subtotal:
  • 2 Inch Round Clearance Marker LED Light- Amber LED/ Amber lens

    2 Inch Round Clearance Marker LED Light- Amber LED/ Amber lens

    MAXXIMA

    $10.79
    2 Inch Amber Round Clearance Marker LED Light W/ Amber lensBoost your truck's lighting system with this 2 inch round amber LED clearance marker light designed for performance and durability...
    MX-M09100ABS
    SKU:
    MX-M09100ABS
    Material Options:
    Plastic/Poly
    Color:
    Amber
    Diameter Options:
    2 Inch
    Type Options:
    Grommet Mount
    Product Type:
    Lighting
    Make:
    Universal Items
    $10.79
    Qty in Cart: 0
    Price:
    $10.79
    Subtotal:
  • 3 Diode Oval Courtesy LED Light W/ Bezel- Red LED/ Red Lens

    3 Diode Oval Courtesy LED Light W/ Bezel- Red LED/ Red Lens

    MAXXIMA

    $9.06
    3 Diode Red Oval Courtesy LED Light W/ Bezel W/ Red LensEnhance your truck's visibility and style with this 3 Diode Oval Courtesy LED Light with Bezel. Built with a rugged stainless steel housing and...
    MX-LED-300R
    SKU:
    MX-LED-300R
    Product Type:
    Lighting
    Color:
    Red
    Material Options:
    Plastic/Poly
    Style Options:
    Stainless Steel Housing
    Make:
    Universal Items
    $9.06
    Qty in Cart: 0
    Price:
    $9.06
    Subtotal:
  • Stainless Steel DPF Gasket For Cummins ISB 6.7, ISC 8.3, ISL 8.9 Engines Replaces 2866636

    Stainless Steel DPF Gasket For Cummins ISB 6.7, ISC 8.3, ISL 8.9 Engines Replaces 2866636

    DAYTON / DORMAN

    $13.21
    Diesel Particulate Filter Gasket W/ 3.86 Inch ID and 4.65 Inch OD Replaces 2866636 Fits Cummins ISB 6.7, ISC 8.3, ISL 8.9 EnginesRestore reliable exhaust sealing with this Stainless Steel DPF Gasket...
    29-08090002
    SKU:
    29-08090002
    Style Options:
    Cummins
    Shape Options:
    Round
    Product Type:
    Exhaust
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    $13.21
    Qty in Cart: 0
    Price:
    $13.21
    Subtotal:
  • EGR Valve W/ 3 Mounting Holes & Exhaust Port For Cummins ISM 10.8L Engine Replaces 3101917, 3102317, 3102745

    EGR Valve W/ 3 Mounting Holes & Exhaust Port For Cummins ISM 10.8L Engine Replaces 3101917, 3102317, 3102745

    DAYTON / DORMAN

    $669.99
    EGR Valve W/ 3 Mounting Holes & Exhaust Port Replaces 3101917, 3102317, 3102745 Fits Cummins ISM 10.8L EngineMaintain emissions compliance and dependable engine performance with this EGR Valve,...
    29-07110013
    SKU:
    29-07110013
    Style Options:
    Cummins
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $669.99
    Qty in Cart: 0
    Price:
    $669.99
    Subtotal:
  • Engine Crankcase Breather Element For Cummins ISX 11.9 Engine Replaces 2869874, 2895324, CV50626

    Engine Crankcase Breather Element For Cummins ISX 11.9 Engine Replaces 2869874, 2895324, CV50626

    DAYTON / DORMAN

    $82.99
    Crankcase Ventilation Filter Replaces 2869874, 2895324, CV50626 Fits Cummins ISX 11.9 EngineRestore proper crankcase ventilation performance with this Engine Crankcase Breather Element designed for...
    29-071200053
    SKU:
    29-071200053
    Product Type:
    Engine Parts
    Style Options:
    Cummins
    Make:
    Universal Items
    $82.99
    Qty in Cart: 0
    Price:
    $82.99
    Subtotal:
  • EGR Cooler For Cummins ISX 11.9, 15.0L Engine Replaces 2881760, 2881842, 2882108, 2892893

    EGR Cooler For Cummins ISX 11.9, 15.0L Engine Replaces 2881760, 2881842, 2882108, 2892893

    DAYTON / DORMAN

    $1,942.99
    Exhaust Gas Recirculation Cooler Replaces 2881760, 2881842, 2882108, 2892893 Fits Cummins ISX 11.9, 15.0L EngineRestore proper emissions control and engine efficiency with this EGR Cooler designed...
    29-071100015
    SKU:
    29-071100015
    Product Type:
    Engine Parts
    Style Options:
    Cummins
    Make:
    Universal Items
    $1,942.99
    Qty in Cart: 0
    Price:
    $1,942.99
    Subtotal:
  • EGR Cooler For Cummins ISB 6.7L Engine Replaces 2881692, 5254314, 5317072

    EGR Cooler For Cummins ISB 6.7L Engine Replaces 2881692, 5254314, 5317072

    DAYTON / DORMAN

    $668.99
    Exhaust Gas Recirculation Cooler Replaces 2881692, 5254314, 5317072 Fits Cummins ISB 6.7L EngineRestore efficient emissions system cooling with this EGR Cooler designed for Cummins ISB 6.7L engines...
    29-071100016
    SKU:
    29-071100016
    Style Options:
    Cummins
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $668.99
    Qty in Cart: 0
    Price:
    $668.99
    Subtotal:
  • Nitrogen Oxide Exhaust Sensor W/ Harness For Cummins ISX 15L Engine Replaces 2894941, 2894941RX, 3687334RX

    Nitrogen Oxide Exhaust Sensor W/ Harness For Cummins ISX 15L Engine Replaces 2894941, 2894941RX, 3687334RX

    DAYTON / DORMAN

    $392.99
    Nitrogen Oxide Exhaust Sensor Replaces 2894941, 2894941RX, 3687334RX Fits Cummins ISX 15L EngineRestore optimal diesel aftertreatment performance with this Nitrogen Oxide Exhaust Sensor with...
    29-071000033
    SKU:
    29-071000033
    Product Type:
    Engine Parts
    Style Options:
    Cummins
    Make:
    Universal Items
    $392.99
    Qty in Cart: 0
    Price:
    $392.99
    Subtotal:
  • Turbocharger Exhaust Outlet Elbow Gasket For Cummins SB 6.7L & ISL 8.9L Engines Replaces 3846392C1

    Turbocharger Exhaust Outlet Elbow Gasket For Cummins SB 6.7L & ISL 8.9L Engines Replaces 3846392C1

    DAYTON / DORMAN

    $13.77
    Turbo Outlet Elbow Gasket Replaces 3846392C1 Fits Cummins SB 6.7L & ISL 8.9L EnginesRestore reliable exhaust sealing with this Turbocharger Exhaust Outlet Elbow Gasket for Cummins SB 6.7L and ISL 8...
    29-070400131
    SKU:
    29-070400131
    Product Type:
    Engine Parts
    Style Options:
    Cummins
    Shape Options:
    Round
    Make:
    Universal Items
    $13.77
    Qty in Cart: 0
    Price:
    $13.77
    Subtotal:
  • FASS Drop-In Series Fuel System For Caterpillar 3406E, C10, C11, C12, C13, C15, C16 & C18

    FASS Drop-In Series Fuel System For Caterpillar 3406E, C10, C11, C12, C13, C15, C16 & C18

    FASS

    $270.99
    Drop-In Series Fuel SystemImprove fuel quality and extend engine life with the FASS Drop-In Series Fuel System, designed for Caterpillar 3406E, C10, C11, C12, C13, C15, C16, and C18 engines equipped...
    29-070300015
    SKU:
    29-070300015
    Product Type:
    Engine Parts
    Style Options:
    Caterpillar
    Make:
    Universal Items
    $270.99
    Qty in Cart: 0
    Price:
    $270.99
    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!