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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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  • Memory Foam Replacement Mattress, Topper And Cover W/ Length Options

    Memory Foam Replacement Mattress, Topper And Cover W/ Length Options

    AUTOMANN USA

    $238.99 - $415.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks42 X 80 Inch Memory Foam TransPlush MattressMemory Foam TransPlush Mattress- 42 X 80 X 7.5 Inch* High...
    PPR_299556
    SKU:
    PPR_299556
    Width Options:
    80 Inch
    Length Options:
    29 Inch
    Length Options:
    42 Inch
    Height Options:
    7 1/2 Inch
    Height Options:
    6 Inch
    Length Options:
    39 Inch
    Length Options:
    36 Inch
    Width Options:
    79 Inch
    Product Type:
    Interior
    Length Options:
    34 Inch
    Material Options:
    Foam
    Make:
    Universal Items
    $238.99 - $415.99
    Qty in Cart: 0
    Price:
    $238.99 - $415.99
    Subtotal:
  • 42 X 80 Inch Memory Foam Mattress- Flippable

    42 X 80 Inch Memory Foam Mattress- Flippable

    AUTOMANN USA

    $284.99
    Flippable Memory Foam Mattress- 42 X 80 X 6 InchTransform your sleep experience with this 42 x 80 Inch Flippable Memory Foam Mattress, built for comfort and durability. Featuring high-quality memory...
    29-154500018
    SKU:
    29-154500018
    Length Options:
    42 Inch
    Height Options:
    6 Inch
    Width Options:
    80 Inch
    Product Type:
    Interior
    Material Options:
    Foam
    Make:
    Universal Items
    $284.99
    Qty in Cart: 0
    Price:
    $284.99
    Subtotal:
  • Rear Drive Wheel Center Cap For 24.5 X 8.25 Octane Style American Racing Wheels W/ Position Options

    Rear Drive Wheel Center Cap For 24.5 X 8.25 Octane Style American Racing Wheels W/ Position Options

    WHEEL PROS

    $37.24
    Choose Option(s) to see description.Black Satin Rear Drive Wheel Center Cap For 24.5 Inch x 8.25 Inch Octane Style American Racing WheelsRear Drive Wheel Center Cap-Black* High Quality Wheel Center...
    PPR_299553
    SKU:
    PPR_299553
    Position:
    Rear
    Color:
    Black
    Truck Class:
    Heavy Duty
    Product Type:
    Wheels
    Make:
    Universal Items
    $37.24
    Qty in Cart: 0
    Price:
    $37.24
    Subtotal:
  • Legendary Extreme Large Glass Watermelon Light, 3-Wire Dual-Function LED with Stainless Steel Bezel

    Legendary Extreme Large Glass Watermelon Light, 3-Wire Dual-Function LED with Stainless Steel Bezel

    LEGENDARY

    $49.99
    Semi truck watermelon lights add classic styling and modern LED color options to your rig. The Legendary Extreme 3.5-Inch Glass Watermelon LED Light with Stainless Steel Bezel is designed for semi...
    PPR_299280
    SKU:
    PPR_299280
    Color:
    Amber/Green
    Color:
    Red/Blue
    Material Options:
    Glass
    Color:
    Amber/Blue
    Color:
    Amber/Red
    Diameter Options:
    3 1/2 Inch
    Style Options:
    Watermelon
    Color:
    Red/Purple
    Shape Options:
    Round
    Color:
    Amber/Purple
    Color:
    Red/Green
    Product Type:
    Lighting
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $49.99
    Qty in Cart: 0
    Price:
    $49.99
    Subtotal:
  • On Sale
    Limited Quantity Available
    CSM 24 X 48 X 2 Inch Black Cushion For Park Benches

    CSM 24 X 48 X 2 Inch Black Cushion For Park Benches

    CHROME SHOP MAFIA

    Now: $84.24
    Was: $130.99
    24 X 48 X 2 Inch Black Cushion By Chrome Shop MafiaImprove seating comfort with this high-quality Black Cushion from Chrome Shop Mafia, sized 24 x 48 x 2 inches for benches. Built for durability and...
    CSMCU003
    SKU:
    CSMCU003
    Height Options:
    2 Inch
    Width Options:
    24 Inch
    Color:
    Black
    Material Options:
    Foam
    Product Type:
    Apparel
    Length Options:
    48 Inch
    Make:
    Universal Items
    Ready To Ship:
    Yes
    Now: $84.24
    Was: $130.99
    Qty in Cart: 0
    Price:
    Now: $84.24
    Was: $130.99
    Subtotal:
  • Wheel Stud Service Kit Replaces 4295

    Wheel Stud Service Kit Replaces 4295

    AFTERMARKET

    $834.99
    Wheel Stud Service Kit For Most Truck and Trailer HubsKeep your truck wheels secure and maintenance simple with this Wheel Stud Service Kit. This high-quality kit works on most hubs, making...
    29-21000003
    SKU:
    29-21000003
    Product Type:
    Tools
    Make:
    Universal Items
    $834.99
    Qty in Cart: 0
    Price:
    $834.99
    Subtotal:
  • Fender Washer Replaces 2701156

    Fender Washer Replaces 2701156

    AUTOMANN USA

    $2.26
    0.5 Inch ID X 1.75 Inch OD Fender WasherThis high-quality Fender Washer is built for heavy-duty performance, replacing 2701156. Flat hard end design, 1/2-inch inner diameter, 1-3/4-inch outer...
    29-1240007
    SKU:
    29-1240007
    Product Type:
    Hood Parts & Acc.
    Diameter Options:
    1 1/2 Inch
    Make:
    Universal Items
    $2.26
    Qty in Cart: 0
    Price:
    $2.26
    Subtotal:
  • 20 Inch 6 Spoke Wheel Replaces FA705K, FX196KX, FX705KX, 9660

    20 Inch 6 Spoke Wheel Replaces FA705K, FX196KX, FX705KX, 9660

    AFTERMARKET

    $780.99
    20 Inch Spoke Wheel W/ 6 Spokes, 12.750 Inch Mounting Bolt Hole Circle Diameter & 6- 0.75 Inch Bolt HolesGet dependable performance with this 20 Inch 6 Spoke Wheel. Featuring wheel bearing cups, rim...
    29-20100000
    SKU:
    29-20100000
    Product Type:
    Wheels
    Diameter Options:
    20 Inch
    Make:
    Universal Items
    $780.99
    Qty in Cart: 0
    Price:
    $780.99
    Subtotal:
  • Dosing Pump Urea Injection Replaces 2871879, 0444042132, 4387657 For Cummins & PACCAR Engines

    Dosing Pump Urea Injection Replaces 2871879, 0444042132, 4387657 For Cummins & PACCAR Engines

    AFTERMARKET

    $776.99
    5.5 X 8.09 Inch Dosing Pump Urea Injection- 10 PinEnsure precise DEF delivery with this high-quality Dosing Pump Urea Injection for Cummins and PACCAR engines. The 2.2 Type Supply Module features a...
    29-08060023
    SKU:
    29-08060023
    Product Type:
    Exhaust
    Height Options:
    5 Inch
    Make:
    Universal Items
    $776.99
    Qty in Cart: 0
    Price:
    $776.99
    Subtotal:
  • Ignition Switch Replaces P271048 For PACCAR Engines

    Ignition Switch Replaces P271048 For PACCAR Engines

    AFTERMARKET

    $52.99
    2.5 Inch Ignition Switch- 7 PinReplace your worn or faulty ignition with this precision PACCAR Ignition Switch. Complete with a lock cylinder, two keys, and a 7-pin connector, it measures 2.5 inches...
    29-15000004
    SKU:
    29-15000004
    Product Type:
    Interior
    Style Options:
    Paccar
    Make:
    Universal Items
    $52.99
    Qty in Cart: 0
    Price:
    $52.99
    Subtotal:
  • Actuator Dock Lock Replaces 1S4187, S29899, SSR1VA1031 For Hendrickson/ Turner Trailers

    Actuator Dock Lock Replaces 1S4187, S29899, SSR1VA1031 For Hendrickson/ Turner Trailers

    AUTOMANN USA

    $33.38
    Sleeve Type Actuator Dock Lock Fits Hendrickson/ Turner TrailersThis premium Actuator Dock Lock is designed for Hendrickson and Turner Trailers. Sleeve-type design with top and bottom plates...
    29-09500003
    SKU:
    29-09500003
    Height Options:
    10 1/2 Inch
    Product Type:
    Trailer
    Make:
    Universal Items
    Make:
    Trailer
    $33.38
    Qty in Cart: 0
    Price:
    $33.38
    Subtotal:
  • Oil Plug Replaces 9S-8008, 9S8008 For Caterpillar C7 Engines

    Oil Plug Replaces 9S-8008, 9S8008 For Caterpillar C7 Engines

    AUTOMANN USA

    $15.25
    1.253 X 0.771 Inch Oil Plug W/ 0.575 Inch A/F & 1-1/16 Inch - 12 ThreadEnsure your Caterpillar C7 engine remains protected with this precision Oil Plug. Featuring 0.575-inch A/F, 1.253-inch diameter,...
    29-07200011
    SKU:
    29-07200011
    Product Type:
    Engine Parts
    Style Options:
    Caterpillar
    Make:
    Universal Items
    $15.25
    Qty in Cart: 0
    Price:
    $15.25
    Subtotal:
  • Lock Washer Replaces SA16004, C70641B, 93600072, 355AX, T1705

    Lock Washer Replaces SA16004, C70641B, 93600072, 355AX, T1705

    AUTOMANN USA

    $0.34
    0.5 Inch Lock WasherMaintain optimal fastening with this durable Lock Washer, designed for SA16004, C70641B, 93600072, 355AX, and T1705. Medium-duty washer with 1/2-inch ID, 11/64-inch width, and...
    29-1240004
    SKU:
    29-1240004
    Product Type:
    Hood Parts & Acc.
    Diameter Options:
    1/2 Inch
    Make:
    Universal Items
    $0.34
    Qty in Cart: 0
    Price:
    $0.34
    Subtotal:
  • Cabin Air Spring Replaces 75314, SC29-O132, 7155, 7164, W023587155, W027037163, W027037164, W027037165, 1S4235, R816002, W027037153, 2019036

    Cabin Air Spring Replaces 75314, SC29-O132, 7155, 7164, W023587155, W027037163, W027037164, W027037165, 1S4235, R816002, W027037153, 2019036

    AFTERMARKET

    $57.99
    Sleeve Type Cabin Air Spring- Load At 80 PSI - 688 Lbs, Load At 100 PSI - 860 LbsImprove ride comfort and cab stability with this high-quality Cabin Air Spring. This sleeve-type air spring supports...
    29-10140001
    SKU:
    29-10140001
    Diameter Options:
    4 1/4 Inch
    Product Type:
    Exterior
    Height Options:
    8 1/2 Inch
    Make:
    Universal Items
    $57.99
    Qty in Cart: 0
    Price:
    $57.99
    Subtotal:
  • DPF Gasket Replaces 5304868, 5417859, 2188190PE For Cummins, PACCAR

    DPF Gasket Replaces 5304868, 5417859, 2188190PE For Cummins, PACCAR

    AFTERMARKET

    $36.34
    14.25 Inch ID X 15.375 Inch OD DPF GasketKeep your DPF system functioning efficiently with this high-quality gasket for Cummins and PACCAR engines. With a 14.250-inch ID, 15.375-inch OD, and 0...
    29-0809209
    SKU:
    29-0809209
    Product Type:
    Exhaust
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $36.34
    Qty in Cart: 0
    Price:
    $36.34
    Subtotal:
  • Oil Pump Replaces 3966840 For Cummins ISC 8.3L Engines

    Oil Pump Replaces 3966840 For Cummins ISC 8.3L Engines

    AFTERMARKET

    $140.99
    Cummins ISC 8.3L Engine Oil PumpThis premium Oil Pump for Cummins ISC 8.3L engines replaces part number 3966840 and is built for heavy-duty performance. Designed to maintain steady lubrication and...
    29-07200013
    SKU:
    29-07200013
    Product Type:
    Engine Parts
    Style Options:
    Cummins
    Make:
    Universal Items
    $140.99
    Qty in Cart: 0
    Price:
    $140.99
    Subtotal:
  • Oil Cooler Replaces 3957544, 3921558, 4713985AB, AP63467 For Cummins ISB 5.9L Engine

    Oil Cooler Replaces 3957544, 3921558, 4713985AB, AP63467 For Cummins ISB 5.9L Engine

    AFTERMARKET

    $164.99
    Oil Cooler W/ 7 PlatesThis high-performance Oil Cooler is the perfect replacement for Cummins ISB 5.9L engines. With 7 plated construction and fifteen precision-drilled holes-twelve at 0.340-inch and...
    29-07200005
    SKU:
    29-07200005
    Product Type:
    Engine Parts
    Style Options:
    Cummins
    Make:
    Universal Items
    $164.99
    Qty in Cart: 0
    Price:
    $164.99
    Subtotal:
  • 3.5 Inch Aluminized Steel Band Clamp Replaces A35AF, J000201

    3.5 Inch Aluminized Steel Band Clamp Replaces A35AF, J000201

    AUTOMANN USA

    $11.01
    3.5 Inch Aluminized Band ClampSecure your exhaust or piping system with this high-quality 3.5 Inch Aluminized Steel Band Clamp. Featuring pre-attached hardware and a Grade 8 M10 3/8-inch bolt, it...
    29-08000005
    SKU:
    29-08000005
    Diameter Options:
    3 1/2 Inch
    Product Type:
    Exhaust
    Width Options:
    1 1/4 Inch
    Material Options:
    Aluminized Steel
    Make:
    Universal Items
    $11.01
    Qty in Cart: 0
    Price:
    $11.01
    Subtotal:
  • EGR Pressure Differential Sensor Replaces 23531964 For Detroit Diesel 60 Series Engines

    EGR Pressure Differential Sensor Replaces 23531964 For Detroit Diesel 60 Series Engines

    AFTERMARKET

    $177.99
    EGR Pressure Differential Sensor- 3 PinMonitor exhaust gas pressure with confidence using this premium EGR Pressure Differential Sensor, replacement for Detroit Diesel 60 Series engines. Featuring 3...
    29-07100030
    SKU:
    29-07100030
    Product Type:
    Engine Parts
    Style Options:
    Detroit
    Make:
    Universal Items
    $177.99
    Qty in Cart: 0
    Price:
    $177.99
    Subtotal:
  • Oil Plug Replaces 9S-8004, 9S8004, 0995845 For Caterpillar C7 Engines

    Oil Plug Replaces 9S-8004, 9S8004, 0995845 For Caterpillar C7 Engines

    AUTOMANN USA

    $14.52
    0.684 X 0.500 Inch Oil Plug W/ 0.265 Inch A/F & 9/16 Inch - 18 ThreadMaintain your Caterpillar C7 engine with this premium Oil Plug. Its 0.265-inch A/F, 0.684-inch diameter, 0.500-inch length, and...
    29-07200010
    SKU:
    29-07200010
    Product Type:
    Engine Parts
    Style Options:
    Caterpillar
    Make:
    Universal Items
    $14.52
    Qty in Cart: 0
    Price:
    $14.52
    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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