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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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  • FREE SHIPPING OVER $219
    Turnpike Truck Trim Aluminum Watermelon Light Bracket

    Turnpike Truck Trim Aluminum Watermelon Light Bracket

    TURNPIKE TRUCK TRIM

    $49.99
    8 X 5 Inch Aluminum Watermelon Light Bracket By Turnpike Truck TrimSecurely mount your watermelon-style lights with the Turnpike Truck Trim Aluminum Watermelon Light Bracket. Made from...
    09-1610137
    SKU:
    09-1610137
    Height Options:
    5 Inch
    Style Options:
    Watermelon
    Product Type:
    Lighting
    Length Options:
    8 Inch
    Material Options:
    Aluminum
    Make:
    Universal Items
    $49.99
    Qty in Cart: 0
    Price:
    $49.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Legendary Extreme Large Watermelon Light W/ Aluminum Base- Amber LED/ Dark Amber Lens

    Legendary Extreme Large Watermelon Light W/ Aluminum Base- Amber LED/ Dark Amber Lens

    LEGENDARY

    $45.99
    Amber LED/ Dark Amber Lens Large Watermelon Light W/ Aluminum Base By Legendary ExtremeLight up the road with the Legendary Extreme Large Watermelon Light, featuring an amber LED with a dark amber...
    09-160101250
    SKU:
    09-160101250
    Style Options:
    Dual Function
    Product Type:
    Lighting
    Color:
    Amber
    Material Options:
    Aluminum
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $45.99
    Qty in Cart: 0
    Price:
    $45.99
    Subtotal:
  • FREE SHIPPING OVER $219
    TPHD 4 Inch Round Stop, Turn, Tail Light- Red LED/ Clear Lens

    TPHD 4 Inch Round Stop, Turn, Tail Light- Red LED/ Clear Lens

    TPHD

    $12.99
    4 Inch Round 19 Diode Red LED/ Clear Lens Stop, Turn, Tail Light By TPHDMaximize safety and visibility with the TPHD 4 Inch Round Stop, Turn, Tail Light, a robust LED light with 19 red diodes behind...
    09-160106697
    SKU:
    09-160106697
    Product Type:
    Lighting
    Color:
    Red/Clear
    Material Options:
    Plastic/Poly
    Shape Options:
    Round
    Diameter Options:
    4 Inch
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $12.99
    Qty in Cart: 0
    Price:
    $12.99
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  • Legendary Under Bumper Light Bracket W/ 5 Watermelon Light Holes

    Legendary Under Bumper Light Bracket W/ 5 Watermelon Light Holes

    LEGENDARY

    $184.99
    Under Bumper Light Bracket W/ 5 Watermelon Light Holes By LegendaryUpgrade your truck's lighting setup with the Legendary Under Bumper Light Bracket. This high-quality bracket includes 5 watermelon...
    09-010600206
    SKU:
    09-010600206
    Light Options:
    Without Lights
    Product Type:
    Bumpers
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $184.99
    Qty in Cart: 0
    Price:
    $184.99
    Subtotal:
  • FREE SHIPPING OVER $249
    TPHD 8 Inch Stainless Steel Flat Band Clamp

    TPHD 8 Inch Stainless Steel Flat Band Clamp

    TPHD

    $32.63
    8 Inch Flat Band Clamp By TPHDKeep your exhaust system tight and secure with the TPHD 8 Inch Stainless Steel Flat Band Clamp. Featuring a polished flat band design and crafted from 23-gauge 304...
    09-08000180
    SKU:
    09-08000180
    Finish Options:
    Polished
    Style Options:
    Flat
    Diameter Options:
    8 Inch
    Size Options:
    23 Gauge
    Material Options:
    Stainless Steel
    Product Type:
    Exhaust
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $32.63
    Qty in Cart: 0
    Price:
    $32.63
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  • Battery Jumper Cable - Group 31, 2/0 W/ 3/8-Inch Lugs

    Battery Jumper Cable - Group 31, 2/0 W/ 3/8-Inch Lugs

    AFTERMARKET

    $17.11 - $22.78
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks17 Inch Red Battery Jumper Cable Replaces 84-969517 Inch 2 Gauge Red Battery Jumper Cable W/ 3/8 Inch...
    PPR_300359
    SKU:
    PPR_300359
    Color:
    Black
    Length Options:
    8 1/2 Inch
    Product Type:
    Engine Parts
    Length Options:
    17 Inch
    Color:
    Red
    Make:
    Universal Items
    $17.11 - $22.78
    Qty in Cart: 0
    Price:
    $17.11 - $22.78
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  • BESTfit 25-Foot Roll Heavy Duty Galvanized Metal Hose

    BESTfit 25-Foot Roll Heavy Duty Galvanized Metal Hose

    BESTFIT TRUCK PARTS

    $293.99 - $383.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksBESTfit 4 Inch X 25 Ft Galvanized Steel Flex Hose4 Inch X 25 Ft Galvanized Flex Hose By BESTfit* High...
    PPR_300295
    SKU:
    PPR_300295
    Product Type:
    Exhaust
    Diameter Options:
    4 Inch
    Diameter Options:
    5 Inch
    Material Options:
    Steel
    Length Options:
    300 Inch
    Finish Options:
    Galvanized
    Style Options:
    Standard
    Style Options:
    Heavy Duty
    Make:
    Universal Items
    $293.99 - $383.99
    Qty in Cart: 0
    Price:
    $293.99 - $383.99
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  • BESTfit 2.5 Inch 304 Stainless Steel V- Band Clamp

    BESTfit 2.5 Inch 304 Stainless Steel V- Band Clamp

    BESTFIT TRUCK PARTS

    $30.99
    2.5 Inch Stainless Steel V- Band Clamp By BESTfitEnsure leak-free, heavy-duty connections with the BESTfit 2.5 Inch 304 Stainless Steel V-Band Clamp. Its precision 2.5-inch diameter and robust 304...
    GR-VB-300C
    SKU:
    GR-VB-300C
    Product Type:
    Exhaust
    Make:
    Universal Items
    $30.99
    Qty in Cart: 0
    Price:
    $30.99
    Subtotal:
  • BESTfit 7 Inch Zinc Plated Rain Cap

    BESTfit 7 Inch Zinc Plated Rain Cap

    BESTFIT TRUCK PARTS

    $173.03
    7 Inch Rain Cap By BESTfitPrevent water and debris from entering your exhaust with the BESTfit 7 Inch Zinc Plated Rain Cap. Made for 7-inch straight stack openings, this zinc-plated steel cap offers...
    GR-RC-700
    SKU:
    GR-RC-700
    Product Type:
    Exhaust
    Make:
    Universal Items
    $173.03
    Qty in Cart: 0
    Price:
    $173.03
    Subtotal:
  • BESTfit 7-5.5 Inch 90 Degree Rubber Reducer Elbow

    BESTfit 7-5.5 Inch 90 Degree Rubber Reducer Elbow

    BESTFIT TRUCK PARTS

    $87.99
    7-5.5 Inch 90 Degree Rubber Reducer Elbow By BESTfitKeep your air intake system performing at peak efficiency with the BESTfit 7-5.5 Inch 90 Degree Rubber Reducer Elbow, engineered for a smooth...
    GR-RRE-790-55
    SKU:
    GR-RRE-790-55
    Degree Options:
    90
    Product Type:
    Exhaust
    Material Options:
    Rubber
    Diameter Options:
    7 Inch
    Make:
    Universal Items
    $87.99
    Qty in Cart: 0
    Price:
    $87.99
    Subtotal:
  • BESTfit 4 Inch Aluminized Steel Butt Joint Clamp

    BESTfit 4 Inch Aluminized Steel Butt Joint Clamp

    BESTFIT TRUCK PARTS

    $15.85
    4 Inch Aluminized Butt Joint Clamp By BESTfitReplace worn clamps with the BESTfit 4 Inch Aluminized Steel Butt Joint Clamp. Engineered from premium aluminized steel and designed for butt joint...
    GR-PF-4ABT
    SKU:
    GR-PF-4ABT
    Product Type:
    Exhaust
    Make:
    Universal Items
    $15.85
    Qty in Cart: 0
    Price:
    $15.85
    Subtotal:
  • BESTfit 6-5 Inch ID Rubber Reducer Hose

    BESTfit 6-5 Inch ID Rubber Reducer Hose

    BESTFIT TRUCK PARTS

    $37.99
    6-5 Inch ID Rubber Reducer Hose By BESTfitReplace worn or damaged intake connections with the BESTfit 6-5 Inch ID Rubber Reducer Hose, built for heavy-duty trucks. This high-quality 6-inch rubber...
    GR-RHH-6-5
    SKU:
    GR-RHH-6-5
    Product Type:
    Exhaust
    Material Options:
    Rubber
    Diameter Options:
    6 To 5 Inch
    Make:
    Universal Items
    $37.99
    Qty in Cart: 0
    Price:
    $37.99
    Subtotal:
  • BESTfit 7-6 Inch 90 Degree Rubber Reducer Elbow

    BESTfit 7-6 Inch 90 Degree Rubber Reducer Elbow

    BESTFIT TRUCK PARTS

    $129.99
    7-6 Inch 90 Degree Rubber Reducer Elbow By BESTfitAchieve secure, leak-free connections in your heavy-duty truck's intake system with the BESTfit 7-6 Inch 90 Degree Rubber Reducer Elbow. Designed to...
    GR-RRE-790-6
    SKU:
    GR-RRE-790-6
    Degree Options:
    90
    Product Type:
    Exhaust
    Style Options:
    Elbow
    Material Options:
    Rubber
    Diameter Options:
    7 Inch
    Make:
    Universal Items
    $129.99
    Qty in Cart: 0
    Price:
    $129.99
    Subtotal:
  • BESTfit 5-6 Inch Exhaust Pipe Hook

    BESTfit 5-6 Inch Exhaust Pipe Hook

    BESTFIT TRUCK PARTS

    $9.26
    5-6 Inch Exhaust Pipe Hook By BESTfitSimplify exhaust pipe installation with the BESTfit 5-6 Inch Exhaust Pipe Hook, built to support 5- to 6-inch pipes. This high-quality hook provides stable...
    GR-PH-6A
    SKU:
    GR-PH-6A
    Product Type:
    Exhaust
    Make:
    Universal Items
    $9.26
    Qty in Cart: 0
    Price:
    $9.26
    Subtotal:
  • BESTfit 48 Inch Aluminized Steel Heat Shield W/ Round Holes

    BESTfit 48 Inch Aluminized Steel Heat Shield W/ Round Holes

    BESTFIT TRUCK PARTS

    $179.99
    48 Inch Aluminized 180 Degree Heat Shield W/ Round Holes By BESTfitSafeguard surrounding components from high exhaust temperatures with the BESTfit 48 Inch Aluminized Steel Heat Shield. The...
    GR-PG-G
    SKU:
    GR-PG-G
    Material Options:
    Aluminum
    Length Options:
    48 Inch
    Degree Options:
    180
    Product Type:
    Exhaust
    Make:
    Universal Items
    $179.99
    Qty in Cart: 0
    Price:
    $179.99
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  • BESTfit 3.5 Inch Guillotine Single Edge Saddle Clamp

    BESTfit 3.5 Inch Guillotine Single Edge Saddle Clamp

    BESTFIT TRUCK PARTS

    $6.89
    3.5 Inch Zinc Plated Guillotine Single Edge Saddle Clamp By BESTfitThe BESTfit 3.5 Inch Guillotine Single Edge Saddle Clamp ensures tight, reliable exhaust connections for commercial trucks. Its...
    GR-RB-35ZN
    SKU:
    GR-RB-35ZN
    Product Type:
    Exhaust
    Make:
    Universal Items
    $6.89
    Qty in Cart: 0
    Price:
    $6.89
    Subtotal:
  • BESTfit 10 X 15 Inch Aluminized Steel Oval Muffler Hanger

    BESTfit 10 X 15 Inch Aluminized Steel Oval Muffler Hanger

    BESTFIT TRUCK PARTS

    $72.09
    10 X 15 Inch Oval Muffler Hanger By BESTfitSecure your truck's exhaust system with the BESTfit 10 x 15 Inch Oval Muffler Hanger. Crafted from durable aluminized steel and designed for horizontal...
    GR-OMH-1015
    SKU:
    GR-OMH-1015
    Product Type:
    Exhaust
    Make:
    Universal Items
    $72.09
    Qty in Cart: 0
    Price:
    $72.09
    Subtotal:
  • BESTfit 4 ID X 4.21 OD X 8 Inch Hot Side CAC Hose

    BESTfit 4 ID X 4.21 OD X 8 Inch Hot Side CAC Hose

    BESTFIT TRUCK PARTS

    $90.99
    4 ID X 4.21 OD X 8 Inch Hot Side CAC Hose By BESTfitDeliver dependable airflow in your EGR hot-side system with the BESTfit 4 ID x 4.21 OD x 8 Inch CAC Hose. This high-quality silicone hose provides...
    GR-HCAC-20074
    SKU:
    GR-HCAC-20074
    Length Options:
    6 Inch
    Material Options:
    Silicone
    Color:
    Red
    Diameter Options:
    4 Inch
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $90.99
    Qty in Cart: 0
    Price:
    $90.99
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  • BESTfit 9.5 Inch ID X 10.25 Inch OD DPF Gasket For Cummins ISB 6.7L

    BESTfit 9.5 Inch ID X 10.25 Inch OD DPF Gasket For Cummins ISB 6.7L

    BESTFIT TRUCK PARTS

    $18.59
    9.5 Inch ID X 10.25 Inch OD DPF Gasket By BESTfitMaintain a leak-free DPF system on your Cummins ISB 6.7L with the BESTfit 9.5 Inch ID x 10.25 Inch OD DPF Gasket. Crafted from high-quality materials,...
    GR-GRDPFG-1051-10
    SKU:
    GR-GRDPFG-1051-10
    Product Type:
    Exhaust
    Style Options:
    Cummins
    Make:
    Universal Items
    $18.59
    Qty in Cart: 0
    Price:
    $18.59
    Subtotal:
  • BESTfit 4/4.5 ID X 6.5 Inch CAC Hose

    BESTfit 4/4.5 ID X 6.5 Inch CAC Hose

    BESTFIT TRUCK PARTS

    $113.99
    4/4.5 ID X 6.5 Inch Hot Side CAC Hose By BESTfitEnsure smooth airflow and long-term performance with the BESTfit 4/4.5 ID x 6.5 Inch CAC Hose, designed for EGR hot-side systems. Made of high-quality...
    GR-HCAC-12842
    SKU:
    GR-HCAC-12842
    Color:
    Red
    Product Type:
    Engine Parts
    Diameter Options:
    4 Inch
    Material Options:
    Silicone
    Length Options:
    6 1/2 Inch
    Make:
    Universal Items
    $113.99
    Qty in Cart: 0
    Price:
    $113.99
    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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