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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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  • Quantity
  • Price
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  • 10 Diode Amber/ Clear LED Dual Function Warning Light- Surface Mount

    10 Diode Amber/ Clear LED Dual Function Warning Light- Surface Mount

    OPP - ORIGINAL PARTS PROGRAM

    $234.99
    Amber/ Clear LED Dual Function Warning LightIncrease vehicle safety with the 10 Diode Amber/Clear LED Dual Function Warning Light, a compact, high-quality surface mount solution. Combining 10 amber...
    09-160900209
    SKU:
    09-160900209
    Product Type:
    Lighting
    Type Options:
    Surface Mount
    Material Options:
    Plastic/Poly
    Color:
    Amber/Clear
    Make:
    Universal Items
    $234.99
    Qty in Cart: 0
    Price:
    $234.99
    Subtotal:
  • On Sale
    Limited Quantity Available
    2 Diode Red Oval Challenger LED Light Without Bezel

    2 Diode Red Oval Challenger LED Light Without Bezel

    ROADWORKS

    Now: $3.95
    Was: $14.93
    Red Oval Challenger LED Light Without BezelUpgrade your truck lighting with the 2 Diode Red Oval Challenger LED Light Without Bezel, a high-quality oval-style LED light with dual red diodes and a red...
    09-160106688
    SKU:
    09-160106688
    Location:
    Made In USA
    Color:
    Red
    Style Options:
    Challenger
    Shape Options:
    Oval
    Product Type:
    Lighting
    Make:
    Universal Items
    Ready To Ship:
    Yes
    Now: $3.95
    Was: $14.93
    Qty in Cart: 0
    Price:
    Now: $3.95
    Was: $14.93
    Subtotal:
  • Black 14 GA Primary Wire 100 Ft

    Black 14 GA Primary Wire 100 Ft

    TRUX ACCESSORIES

    $31.99
    Parallel Primary Wire With Black JacketSimplify your electrical installations with the Black 14 GA Primary Wire - 100 Ft, a durable and high-quality 14-gauge wire designed for trucks and heavy-duty...
    09-16020217
    SKU:
    09-16020217
    Product Type:
    Lighting
    Color:
    Black
    Size Options:
    14 Gauge
    Make:
    Universal Items
    $31.99
    Qty in Cart: 0
    Price:
    $31.99
    Subtotal:
  • 67 Purple Miniature Light Bulbs

    67 Purple Miniature Light Bulbs

    GRAND GENERAL

    $2.93
    Purple Miniature Light Bulbs- 12VIlluminate your interior accents with bold style using these 67 Purple Miniature Light Bulbs, designed to give your rig a standout look on the road or at the show...
    09-160000113
    SKU:
    09-160000113
    Product Type:
    Lighting
    Color:
    Purple
    Make:
    Universal Items
    Style Options:
    Micro/Mini
    $2.93
    Qty in Cart: 0
    Price:
    $2.93
    Subtotal:
  • Isspro 2-1/16 Inch Pyrometer 0-1600F W/ Black Bezel, Black Face, White Pointer

    Isspro 2-1/16 Inch Pyrometer 0-1600F W/ Black Bezel, Black Face, White Pointer

    ISSPRO

    $273.99
    2-1/16 Inch Pyrometer 0-1600F W/ Black Bezel, Black Face, White PointerThe Isspro 2-1/16 Inch Pyrometer Gauge offers accurate monitoring of exhaust gas temperatures up to 1600F, with a high-contrast...
    09-150100613
    SKU:
    09-150100613
    Product Type:
    Interior
    Color:
    Black
    Position:
    Kit Full
    Make:
    Universal Items
    $273.99
    Qty in Cart: 0
    Price:
    $273.99
    Subtotal:
  • On Sale
    Limited Quantity Available
    132 Inch Smooth Stainless Steel Full Fender Kit W/ 9 Inch Swivel Fender Bracket

    132 Inch Smooth Stainless Steel Full Fender Kit W/ 9 Inch Swivel Fender Bracket

    TRUX ACCESSORIES

    Now: $1,634.15
    Was: $1,856.99
    132 Inch 14 Gauge Smooth Stainless Steel Full Fender Kit W/ 9 Inch Swivel Fender BracketGive your heavy-duty truck the protection it deserves with the 132 Inch Smooth Stainless Steel Full Fender Kit...
    09-110300033
    SKU:
    09-110300033
    Product Type:
    Rear Fenders
    Finish Options:
    Smooth
    Style Options:
    Rolled End
    Length Options:
    132 Inch
    Size Options:
    14 Gauge
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Now: $1,634.15
    Was: $1,856.99
    Qty in Cart: 0
    Price:
    Now: $1,634.15
    Was: $1,856.99
    Subtotal:
  • 40 Inch Stainless Steel Horizontal Grille Bars

    40 Inch Stainless Steel Horizontal Grille Bars

    ROADWORKS

    $60.99
    40 Inch Horizontal Grille Bars For Short HoodsGive your truck a bold and durable front-end accent with the 40 Inch Stainless Steel Horizontal Grille Bars. Constructed from high-quality stainless...
    09-12106016
    SKU:
    09-12106016
    Product Type:
    Hood Parts & Acc.
    Material Options:
    Stainless Steel
    Length Options:
    40 Inch
    Make:
    Universal Items
    Style Options:
    Horizontal
    Location:
    Made In USA
    $60.99
    Qty in Cart: 0
    Price:
    $60.99
    Subtotal:
  • 4 X 4 Inch Chrome Plastic Iron Cross Accent

    4 X 4 Inch Chrome Plastic Iron Cross Accent

    GRAND GENERAL

    $5.14
    Chrome Plastic Iron Cross Accent- Tape MountGive your rig a bold and unmistakable touch of style with this 4 x 4 Inch Chrome Plastic Iron Cross Accent, crafted to enhance any truck's exterior or...
    09-092000013
    SKU:
    09-092000013
    Product Type:
    Exterior
    Width Options:
    4 Inch
    Finish Options:
    Chrome-Plated
    Material Options:
    Plastic/Poly
    Height Options:
    4 Inch
    Make:
    Universal Items
    $5.14
    Qty in Cart: 0
    Price:
    $5.14
    Subtotal:
  • 6.5 X 10 Inch Stainless Steel Mirror- Stud Mount

    6.5 X 10 Inch Stainless Steel Mirror- Stud Mount

    VELVAC

    $31.90
    6.5 X 10 Inch Stainless Steel Flat Glass MirrorHeavy-duty rigs need heavy-duty mirrors-and this 6.5 x 10 Inch Stainless Steel Stud-Mount Mirror delivers exactly that. The high-quality construction...
    09-09150055
    SKU:
    09-09150055
    Product Type:
    Exterior
    Width Options:
    6 1/2 Inch
    Height Options:
    10 Inch
    Style Options:
    Flat
    Material Options:
    Glass
    Make:
    Universal Items
    $31.90
    Qty in Cart: 0
    Price:
    $31.90
    Subtotal:
  • On Sale
    Limited Quantity Available
    1/8 Inch Black Plastic Hose T- Connector

    1/8 Inch Black Plastic Hose T- Connector

    AFTERMARKET

    Now: $3.43
    Was: $4.90
    1/8 Inch Black Plastic Hose T- Connector -40 Degree F to 480 Degree FWhen your truck demands a connector with real toughness, the 1/8 Inch Black Plastic Hose T-Connector delivers. With black plastic...
    09-09110008
    SKU:
    09-09110008
    Product Type:
    Air, Electrical, & Safety
    Material Options:
    Plastic/Poly
    Width Options:
    1/8 Inch
    Color:
    Black
    Make:
    Universal Items
    Ready To Ship:
    Yes
    Now: $3.43
    Was: $4.90
    Qty in Cart: 0
    Price:
    Now: $3.43
    Was: $4.90
    Subtotal:
  • 66 Inch Smooth Stainless Steel Flanged Half Fender Kit W/ 9 Inch Swivel Fender Bracket

    66 Inch Smooth Stainless Steel Flanged Half Fender Kit W/ 9 Inch Swivel Fender Bracket

    TRUX ACCESSORIES

    $711.99
    66 Inch 16 Gauge Stainless Steel Flanged Half Fender Kit W/ 9 Inch Swivel Fender BracketMaximize tire coverage and truck durability with the 66 Inch Smooth Stainless Steel Flanged Half Fender Kit...
    09-110300030
    SKU:
    09-110300030
    Product Type:
    Rear Fenders
    Material Options:
    Stainless Steel
    Size Options:
    16 Gauge
    Finish Options:
    Smooth
    Length Options:
    66 Inch
    Style Options:
    Rolled End
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $711.99
    Qty in Cart: 0
    Price:
    $711.99
    Subtotal:
  • 7-5 X 36 Inch Chrome West Coast Turn Exhaust Stack

    7-5 X 36 Inch Chrome West Coast Turn Exhaust Stack

    LINCOLN CHROME

    $370.99
    7-5 X 36 Inch West Coast Turn Exhaust StackAdd both style and functionality with the 7.5 x 36 Inch Chrome West Coast Turn Exhaust Stack. Its West Coast curved top ensures efficient exhaust flow,...
    09-087536071
    SKU:
    09-087536071
    Product Type:
    Exhaust
    Finish Options:
    Chrome-Plated
    Material Options:
    Steel
    Style Options:
    West Coast Turn
    Height Options:
    36 Inch
    Location:
    Made In USA
    Make:
    Universal Items
    Diameter Options:
    7 To 5 Inch
    $370.99
    Qty in Cart: 0
    Price:
    $370.99
    Subtotal:
  • Stainless Steel L- Bracket For Mirror

    Stainless Steel L- Bracket For Mirror

    GRAND GENERAL

    $6.52
    1.75 X 1 X 1.25 Inch L- Bracket For MirrorGive your mirror system the strong support it needs with this Stainless Steel L-Bracket. Weather-resistant stainless steel stands firm through tough...
    09-0915102
    SKU:
    09-0915102
    Product Type:
    Exterior
    Height Options:
    1 Inch
    Width Options:
    1 1/4 Inch
    Length Options:
    1 3/4 Inch
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Degree Options:
    90
    $6.52
    Qty in Cart: 0
    Price:
    $6.52
    Subtotal:
  • On Sale
    Limited Quantity Available
    7/64 Inch Black Rubber Windshield Washer Wet Hose

    7/64 Inch Black Rubber Windshield Washer Wet Hose

    4 STATE TRUCKS

    Now: $0.57
    Was: $0.82
    7/64 Inch Black Rubber Windshield Washer Wet HoseWhen it's time to replace worn or brittle washer tubing, the 7/64 inch Black Rubber Windshield Washer Wet Hose delivers the durability you need. Built...
    09-09110010
    SKU:
    09-09110010
    Product Type:
    Exterior
    Material Options:
    Rubber
    Color:
    Black
    Make:
    Universal Items
    Ready To Ship:
    Yes
    Now: $0.57
    Was: $0.82
    Qty in Cart: 0
    Price:
    Now: $0.57
    Was: $0.82
    Subtotal:
  • On Sale
    Wet Arm Adapter Windshield Nozzle

    Wet Arm Adapter Windshield Nozzle

    OPP - ORIGINAL PARTS PROGRAM

    Now: $5.68
    Was: $8.11
    Windshield NozzleDon't let a malfunctioning washer nozzle compromise visibility-choose the Wet Arm Adapter Windshield Nozzle to deliver a precise spray exactly where you need it. Engineered for...
    09-09110011
    SKU:
    09-09110011
    Product Type:
    Exterior
    Make:
    Universal Items
    Now: $5.68
    Was: $8.11
    Qty in Cart: 0
    Price:
    Now: $5.68
    Was: $8.11
    Subtotal:
  • 8-5 X 36 Inch Chrome Bull Hauler Exhaust Stack

    8-5 X 36 Inch Chrome Bull Hauler Exhaust Stack

    LINCOLN CHROME

    $495.99
    8-5 X 36 Inch Bull Hauler Exhaust StackStep up your exhaust game with the 8-5 36 inch Chrome Bull Hauler Exhaust Stack. Designed for longevity and aesthetic impact, this stack features an oversized...
    09-088536050
    SKU:
    09-088536050
    Product Type:
    Exhaust
    Material Options:
    Steel
    Location:
    Made In USA
    Finish Options:
    Chrome-Plated
    Height Options:
    36 Inch
    Make:
    Universal Items
    Ready To Ship:
    Yes
    Style Options:
    Bullhorn Top Style
    Diameter Options:
    8 Inch
    $495.99
    Qty in Cart: 0
    Price:
    $495.99
    Subtotal:
  • 3/8 Inch Male NPT X 3/8 Inch Female NPT Ball Valve Pin Handle Replaces D22082448, Sv590Ph6

    3/8 Inch Male NPT X 3/8 Inch Female NPT Ball Valve Pin Handle Replaces D22082448, Sv590Ph6

    AUTOMANN USA

    $20.19
    Ball Valve Pin Handle- 3/8 Inch Male NPT X 3/8 Inch Female NPTControl fluid flow with confidence using this 3/8 Inch Ball Valve with a pin handle. Featuring both male and female NPT connections, this...
    09-071262705
    SKU:
    09-071262705
    Product Type:
    Air, Electrical, & Safety
    Diameter Options:
    3/8 Inch
    Material Options:
    Brass
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $20.19
    Qty in Cart: 0
    Price:
    $20.19
    Subtotal:
  • On Sale
    Limited Quantity Available
    7/64 Inch Windshield Washer/Vacuum Hose

    7/64 Inch Windshield Washer/Vacuum Hose

    AFTERMARKET

    Now: $0.48
    Was: $0.69
    7/64 Inch Windshield Washer/Vacuum Hose -40 Degree F to 257 Degree FEnsure your truck's washer and vacuum lines are up to the challenge with the 7/64 inch Windshield Washer/Vacuum Hose. Rated for -40...
    09-09110009
    SKU:
    09-09110009
    Product Type:
    Exterior
    Make:
    Universal Items
    Ready To Ship:
    Yes
    Now: $0.48
    Was: $0.69
    Qty in Cart: 0
    Price:
    Now: $0.48
    Was: $0.69
    Subtotal:
  • 5 X 60 Inch Chrome Miter Exhaust Stack

    5 X 60 Inch Chrome Miter Exhaust Stack

    TRUX ACCESSORIES

    $194.99
    5 X 60 Inch Miter Exhaust StackImprove exhaust flow and truck appearance with this 5 x 60 Inch Chrome Miter Exhaust Stack. Featuring a mitered top for precision airflow and a sturdy triple...
    09-08010090
    SKU:
    09-08010090
    Product Type:
    Exhaust
    Diameter Options:
    5 Inch
    Material Options:
    Steel
    Style Options:
    Miter Cut
    Finish Options:
    Chrome-Plated
    Length Options:
    60 Inch
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $194.99
    Qty in Cart: 0
    Price:
    $194.99
    Subtotal:
  • 6-5 X 60 Inch Chrome Curve Turn Exhaust Stack

    6-5 X 60 Inch Chrome Curve Turn Exhaust Stack

    TRUX ACCESSORIES

    $307.99
    6-5 X 60 Inch Curve Turn Exhaust StackExperience reliable exhaust performance with this 6.5 x 60 Inch Chrome Curve Turn Exhaust Stack. Designed with a curved top and a tapered 6-to-5-inch diameter,...
    09-08010088
    SKU:
    09-08010088
    Product Type:
    Exhaust
    Style Options:
    Curve Turn
    Finish Options:
    Chrome-Plated
    Length Options:
    60 Inch
    Material Options:
    Steel
    Make:
    Universal Items
    $307.99
    Qty in Cart: 0
    Price:
    $307.99
    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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