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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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  • Price
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  • Knoedler Lo-Rider Seat W/ Headrest, Arms- Tan Genuine Leather

    Knoedler Lo-Rider Seat W/ Headrest, Arms- Tan Genuine Leather

    KNOEDLER

    $2,348.99
    Tan Genuine Leather Lo-Rider Seat W/ Headrest, ArmsMake long drives more comfortable with the Knoedler Lo-Rider Seat W/ Headrest and Arms. Featuring dual-chamber side bolster FAS, 20.3-inch mid-back...
    98LRL82MH0L03
    SKU:
    98LRL82MH0L03
    Degree Options:
    45
    Style Options:
    Mid Back
    Height Options:
    20 Inch
    Material Options:
    Leather
    Color:
    Brown
    Product Type:
    Seats
    Make:
    Universal Items
    $2,348.99
    Qty in Cart: 0
    Price:
    $2,348.99
    Subtotal:
  • FREE SHIPPING OVER $249
    GBATS 2025 Hat

    GBATS 2025 Hat

    CHROME SHOP MAFIA

    $10.99
    Guilty By Association Truck Show 2025 HatShow your pride and support for the trucking community with the GBATS 2025 Hat from Guilty By Association Truck Show. This high-quality hat features the...
    CSMH092525
    SKU:
    CSMH092525
    Product Type:
    Apparel
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $10.99
    Qty in Cart: 0
    Price:
    $10.99
    Subtotal:
  • Liner Kit Replaces A4710113110, A4710111610 For Detroit Diesel DD13

    Liner Kit Replaces A4710113110, A4710111610 For Detroit Diesel DD13

    AREA DIESEL SERVICE

    $331.99
    Detroit Diesel DD13 Liner KitEngine precision and longevity depend on quality components, and the Liner Kit for Detroit Diesel DD13 delivers both. This high-quality kit includes a liner sleeve, a...
    29-0717001
    SKU:
    29-0717001
    Position:
    Kit Full
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $331.99
    Qty in Cart: 0
    Price:
    $331.99
    Subtotal:
  • Knoedler Air Chief Standard Base Mid Back Seat W/ FAS Lumbar, Headrest, Arms, Bellow- Black & Gray Synthetic Leather

    Knoedler Air Chief Standard Base Mid Back Seat W/ FAS Lumbar, Headrest, Arms, Bellow- Black & Gray Synthetic Leather

    KNOEDLER

    $1,295.99
    Black & Gray Synthetic Leather Air Chief Standard Base Mid Back Seat W/ FAS Lumbar, Headrest, Arms, BellowDrive in ultimate comfort with the Knoedler Air Chief Standard Base Mid Back Seat. This Air...
    98CHL82MOS15
    SKU:
    98CHL82MOS15
    Color:
    Black
    Style Options:
    Mid Back
    Degree Options:
    45
    Material Options:
    Synthetic Leather
    Product Type:
    Seats
    Make:
    Universal Items
    $1,295.99
    Qty in Cart: 0
    Price:
    $1,295.99
    Subtotal:
  • Non-Wastegated Turbocharger Replaces 14969880000BA For Caterpillar

    Non-Wastegated Turbocharger Replaces 14969880000BA For Caterpillar

    AFTERMARKET

    $2,489.99
    Caterpillar 3406E & C15 TurbochargerTake control of your Caterpillar engine's performance with the Non-Wastegated Turbocharger. This high-quality turbocharger is engineered for models with ceramic...
    29-0704125
    SKU:
    29-0704125
    Product Type:
    Engine Parts
    Style Options:
    Caterpillar
    Make:
    Universal Items
    $2,489.99
    Qty in Cart: 0
    Price:
    $2,489.99
    Subtotal:
  • Minimizer Lift Axle Mounting Kit For 13,000 Lb Steerable Hendrickson W/ 4 Bolt Cam Flange & Drum Brakes

    Minimizer Lift Axle Mounting Kit For 13,000 Lb Steerable Hendrickson W/ 4 Bolt Cam Flange & Drum Brakes

    MINIMIZER

    $796.99
    Lift Axle Mounting Kit By MinimizerStrengthen and stabilize your Hendrickson lift axle system with the Minimizer Lift Axle Mounting Kit, designed for 13,000 lb steerable axles with 4 bolt cam flange...
    29-05200046
    SKU:
    29-05200046
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $796.99
    Qty in Cart: 0
    Price:
    $796.99
    Subtotal:
  • 17 Inch Stainless Steel Filter Light Bar W/ 20 Round 3/4 Inch Light Holes

    17 Inch Stainless Steel Filter Light Bar W/ 20 Round 3/4 Inch Light Holes

    ARANDA TRUCK ACCESSORIES

    $238.99
    17 Inch Filter Light Bar W/ 20 Round Light HolesUpgrade your lighting setup with the 17 Inch Stainless Steel Filter Light Bar, designed to deliver both style and heavy-duty performance. Its universal...
    29-0905712
    SKU:
    29-0905712
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Product Type:
    Exterior
    Height Options:
    17 Inch
    Light Options:
    Without Lights
    Size Options:
    18 Gauge
    Make:
    Universal Items
    $238.99
    Qty in Cart: 0
    Price:
    $238.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Bulldog HD Shock Absorber Stroke 6.42 Inch Replaces T711003, 12021286, 1202K286, 83056

    Bulldog HD Shock Absorber Stroke 6.42 Inch Replaces T711003, 12021286, 1202K286, 83056

    BULLDOG HD SHOCKS

    $65.99
    6.42 Inch Stroke Shock Absorber By Bulldog HDKeep your truck's suspension in peak condition with the Bulldog HD Shock Absorber. Featuring a 6.42-inch stroke and chrome-plated pistons, it absorbs...
    29-050000195
    SKU:
    29-050000195
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $65.99
    Qty in Cart: 0
    Price:
    $65.99
    Subtotal:
  • Knoedler Lo-Rider Mid Back Seat W/ 3 Chamber Lumbar, Headrest, Arms- Black Genuine Leather

    Knoedler Lo-Rider Mid Back Seat W/ 3 Chamber Lumbar, Headrest, Arms- Black Genuine Leather

    KNOEDLER

    $1,731.99
    Black Genuine Leather Lo-Rider Mid Back Seat W/ 3 Chamber Lumbar, Headrest, ArmsComfort, style, and durability converge in the Knoedler Lo-Rider Mid Back Seat W/ 3 Chamber Lumbar, Headrest, and Arms,...
    98LRL82MH0L01
    SKU:
    98LRL82MH0L01
    Material Options:
    Leather
    Color:
    Black
    Product Type:
    Seats
    Degree Options:
    45
    Style Options:
    Mid Back
    Height Options:
    20 Inch
    Make:
    Universal Items
    $1,731.99
    Qty in Cart: 0
    Price:
    $1,731.99
    Subtotal:
  • Knoedler Wide Chief Standard Base High Back Seat W/ 2 Lumbar Support, Arms, Heat/Cool- Black Synthetic Leather

    Knoedler Wide Chief Standard Base High Back Seat W/ 2 Lumbar Support, Arms, Heat/Cool- Black Synthetic Leather

    KNOEDLER

    $2,413.99
    Black Synthetic Leather Wide Chief Standard Base High Back Seat W/ 2 Lumbar Support, Arms, Heat/Cool-Maximize cab comfort with the Knoedler Wide Chief Standard Base High Back Seat, designed for...
    98CWS82TB0S01
    SKU:
    98CWS82TB0S01
    Product Type:
    Seats
    Color:
    Black
    Degree Options:
    45
    Style Options:
    High Back
    Width Options:
    23 Inch
    Material Options:
    Synthetic Leather
    Make:
    Universal Items
    $2,413.99
    Qty in Cart: 0
    Price:
    $2,413.99
    Subtotal:
  • Reman HX 40W Turbocharger Replaces 4044171R, HT4044171R, 4044174H, 3591021R, 3598064, 3800405 For Cummins 6CTA

    Reman HX 40W Turbocharger Replaces 4044171R, HT4044171R, 4044174H, 3591021R, 3598064, 3800405 For Cummins 6CTA

    AREA DIESEL SERVICE

    $2,561.99
    Cummins 6CTA TurbochargerRestore peak power and reliability with the Reman HX 40W Turbocharger for Cummins 6CTA. This high-quality reman turbocharger provides steady boost and improved airflow for...
    29-0704129
    SKU:
    29-0704129
    Product Type:
    Engine Parts
    Style Options:
    Cummins
    Make:
    Universal Items
    $2,561.99
    Qty in Cart: 0
    Price:
    $2,561.99
    Subtotal:
  • BESTfit AC Compressor Assembly With 1 Groove Clutch Replaces 3E1906 For Caterpillar Engine

    BESTfit AC Compressor Assembly With 1 Groove Clutch Replaces 3E1906 For Caterpillar Engine

    BESTFIT TRUCK PARTS

    $267.99
    Caterpillar Engine AC Compressor Assembly With 1 Groove Clutch By BESTfitRestore peak air conditioning performance with the BESTfit AC Compressor Assembly with 1 Groove Clutch, a direct replacement...
    29-070000043
    SKU:
    29-070000043
    Product Type:
    Engine Parts
    Style Options:
    Caterpillar
    Make:
    Universal Items
    $267.99
    Qty in Cart: 0
    Price:
    $267.99
    Subtotal:
  • 10.375 X 4 X 0.75 Inch Round U-Bolt

    10.375 X 4 X 0.75 Inch Round U-Bolt

    4 STATE TRUCKS

    $54.99
    10.375 X 4 X 0.75 Inch U-BoltDepend on the 10.375 x 4 x 0.75 Inch Round U-Bolt for heavy-duty fastening with professional-grade strength. It includes a round bend, 3/4 inch - 16 threads, and...
    29-05090251
    SKU:
    29-05090251
    Product Type:
    Frame & Chassis
    Width Options:
    4 Inch
    Diameter Options:
    3/4 Inch
    Length Options:
    10 1/4 Inch
    Make:
    Universal Items
    $54.99
    Qty in Cart: 0
    Price:
    $54.99
    Subtotal:
  • Chrome Shift Handle With 1/2 Inch - 13 Thread

    Chrome Shift Handle With 1/2 Inch - 13 Thread

    TWISTED SHIFTERZ

    $34.95
    Shift Handle With 1/2 Inch - 13 Thread- ChromeTake your cab to the next level with the high-quality Chrome Shift Handle with 1/2 Inch - 13 Thread, featuring a black rubber toilet plunger cup for...
    09-220000042
    SKU:
    09-220000042
    Location:
    Made In USA
    Material Options:
    Steel
    Product Type:
    Interior
    Finish Options:
    Chrome-Plated
    Make:
    Universal Items
    $34.95
    Qty in Cart: 0
    Price:
    $34.95
    Subtotal:
  • Minimizer Holland 5th Wheels Slick Plate

    Minimizer Holland 5th Wheels Slick Plate

    MINIMIZER

    $353.99
    5th Wheels Slick Plate By MinimizerReduce wear and improve handling with the Minimizer Holland 5th Wheels Slick Plate, designed for the FW17 Gen2. This high-quality slick plate minimizes friction...
    29-051100034
    SKU:
    29-051100034
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $353.99
    Qty in Cart: 0
    Price:
    $353.99
    Subtotal:
  • On Sale
    Limited Quantity Available
    Knock Out Degreaser- 16 Oz

    Knock Out Degreaser- 16 Oz

    AFTERMARKET

    Now: $6.50
    Was: $13.23
    16 Ounce Knock Out DegreaserExperience deep cleaning power with the Knock Out Degreaser, specially formulated to dissolve grease, grime, and brake dust on contact. Perfect for tires, wheels, engine...
    09-1703113
    SKU:
    09-1703113
    Product Type:
    Polishing
    Make:
    Universal Items
    Ready To Ship:
    Yes
    Now: $6.50
    Was: $13.23
    Qty in Cart: 0
    Price:
    Now: $6.50
    Was: $13.23
    Subtotal:
  • Seats Inc Ultra Leather Seat Cushion Assembly For Legacy Silver Style Seat

    Seats Inc Ultra Leather Seat Cushion Assembly For Legacy Silver Style Seat

    SEATS INC

    $440.99
    Ultra Leather Seat Cushion Assembly By Seats IncBring luxury and comfort to your Legacy Silver Style seat with the Seats Inc Ultra Leather Seat Cushion Assembly. Made with high-quality Ultra Leather,...
    188004MN61
    SKU:
    188004MN61
    Material Options:
    Ultra Leather
    Product Type:
    Seats
    Make:
    Universal Items
    $440.99
    Qty in Cart: 0
    Price:
    $440.99
    Subtotal:
  • Twelve Gauge New Generation Air Ride Air Bag

    Twelve Gauge New Generation Air Ride Air Bag

    TWELVE GAUGE

    $263.00
    Replacement New Generation Air Ride Air Bag By Twelve GaugeExperience advanced ride comfort with the Twelve Gauge New Generation Air Ride Air Bag, engineered for new air ride suspension systems. This...
    29-051000028
    SKU:
    29-051000028
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $263.00
    Qty in Cart: 0
    Price:
    $263.00
    Subtotal:
  • Piston Skull Shift Knob With 1/2 Inch - 13 Thread Adapter

    Piston Skull Shift Knob With 1/2 Inch - 13 Thread Adapter

    TWISTED SHIFTERZ

    $93.99
    2.5 X 3.75 X 3 Inch Piston Skull Shift KnobAdd personality and performance to your truck with the Piston Skull Shift Knob. Crafted for durability and style, this high-quality knob features a unique...
    09-1513205
    SKU:
    09-1513205
    Length Options:
    3 Inch
    Height Options:
    3 1/2 Inch
    Product Type:
    Interior
    Width Options:
    2 1/2 Inch
    Make:
    Universal Items
    $93.99
    Qty in Cart: 0
    Price:
    $93.99
    Subtotal:
  • Black Poly Single Axle Fender W/ Underside Ribs For 22 - 24 Inch Wheel Size

    Black Poly Single Axle Fender W/ Underside Ribs For 22 - 24 Inch Wheel Size

    TRAMEC SLOAN

    $421.99
    Poly Single Axle Fender Black W/ Underside RibsThe Black Poly Single Axle Fender for 22-24 Inch Wheels delivers high-strength protection and corrosion-free performance for your trailer's stationary...
    09-110500497
    SKU:
    09-110500497
    Color:
    Black
    Material Options:
    Plastic/Poly
    Product Type:
    Exterior
    Make:
    Universal Items
    $421.99
    Qty in Cart: 0
    Price:
    $421.99
    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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