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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
  • Subtotal
  • 4 ID Inch X 25 Ft 304 Stainless Steel Flex Tubing

    4 ID Inch X 25 Ft 304 Stainless Steel Flex Tubing

    AUTOMANN USA

    $798.99
    4 Inch ID 304 Stainless Steel Drop Flex Tubing Replaces SF4300* High Quality Tubing* 304 Stainless Steel* Dimensions:  - 4 Inch Diameter  - 25 Ft Length* Flexible* Sold Individually* Warranty On...
    09-08010056
    SKU:
    09-08010056
    Material Options:
    Stainless Steel
    Product Type:
    Exhaust
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    $798.99
    Qty in Cart: 0
    Price:
    $798.99
    Subtotal:
  • 3.5 ID X 12 Inch 409 Stainless Steel Flex Tubing

    3.5 ID X 12 Inch 409 Stainless Steel Flex Tubing

    AUTOMANN USA

    $31.03
    3.5 Inch ID 409 Stainless Steel Drop Flex Tubing Replaces 89616K* High Quality Flex Tubing* 409 Stainless Steel* Dimensions:  - 3.5 Inch I.D.  - 12 Inch Length* Sold Individually* Warranty On Flex...
    09-08010066
    SKU:
    09-08010066
    Product Type:
    Exhaust
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    $31.03
    Qty in Cart: 0
    Price:
    $31.03
    Subtotal:
  • 6 Inch Stainless Steel Flat U Bolt Saddle Clamp

    6 Inch Stainless Steel Flat U Bolt Saddle Clamp

    AFTERMARKET

    $48.84
    Heavy Duty Exhaust Clamp Flat U-Bolt* High Quality Saddle Clamp* Stainless Steel * Diameter- 6 Inch* Flat U-Bolt* Made In USA* Sold Individually* Warranty On Saddle Clamps Against Defects In...
    09-08000008
    SKU:
    09-08000008
    Product Type:
    Exhaust
    Diameter Options:
    6 Inch
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    $48.84
    Qty in Cart: 0
    Price:
    $48.84
    Subtotal:
  • 4 Inch Stainless Steel Flat U Bolt Saddle Clamp

    4 Inch Stainless Steel Flat U Bolt Saddle Clamp

    AUTOMANN USA

    $28.44
    Heavy Duty Exhaust Clamp Flat U-BoltThis durable clamp delivers secure exhaust system mounting with a flat U-bolt design and guillotine saddles for maximum grip.* High Quality Saddle Clamp* Stainless...
    09-08000007
    SKU:
    09-08000007
    Material Options:
    Stainless Steel
    Product Type:
    Exhaust
    Diameter Options:
    4 Inch
    Make:
    Universal Items
    $28.44
    Qty in Cart: 0
    Price:
    $28.44
    Subtotal:
  • 15 Feet 7-Way Green ABS Electric Cable Assembly W/ 12 & 48 inch Leads

    15 Feet 7-Way Green ABS Electric Cable Assembly W/ 12 & 48 inch Leads

    AFTERMARKET

    $180.99
    Green ABS Electric Cable With 7 Way Nylon Sealed Plugs Replaces 304921, 4DA17, 7ATG542MG, And 590163* High Quality Electric Cable* Made Of ABS* Green* 15 Foot Assembly Length* 12 Inch And 48 Inch...
    09-05500019
    SKU:
    09-05500019
    Material Options:
    Plastic/Poly
    Product Type:
    Air, Electrical, & Safety
    Truck Class:
    Universal
    Make:
    Universal Items
    $180.99
    Qty in Cart: 0
    Price:
    $180.99
    Subtotal:
  • 12 Foot Red & Blue Coiled Air Hose Set With 6 Inch Leads

    12 Foot Red & Blue Coiled Air Hose Set With 6 Inch Leads

    AUTOMANN USA

    $77.99
    12 Foot Red & Blue Air Coils With 6 Inch Leads* High Quality Air Hose Set * Made Of Nylon* Coiled, 1/2 Inch O.D. Reinforced Nylon Tubing* 12 Feet Long * Excellent Coil Memory And Durability*...
    09-055206
    SKU:
    09-055206
    Truck Class:
    Heavy Duty
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $77.99
    Qty in Cart: 0
    Price:
    $77.99
    Subtotal:
  • 15 Feet 7-Way Green ABS Electric Cable Assembly W/ 12 & 72 inch Leads

    15 Feet 7-Way Green ABS Electric Cable Assembly W/ 12 & 72 inch Leads

    AFTERMARKET

    $197.99
    Green ABS Electric Cable With 7 Way Nylon Sealed Plugs Replaces 30-4721, 304721, 4D016, And 7ATG512MW* High Quality Electric Cable* Made Of ABS* Green * 15 Foot Assembly Length* 12 Inch And 72 Inch...
    09-05500018
    SKU:
    09-05500018
    Material Options:
    Plastic/Poly
    Product Type:
    Air, Electrical, & Safety
    Truck Class:
    Universal
    Make:
    Universal Items
    $197.99
    Qty in Cart: 0
    Price:
    $197.99
    Subtotal:
  • Type 16 Service Chamber With 8.25 Inch Stem Length - Brake Chamber

    Type 16 Service Chamber With 8.25 Inch Stem Length - Brake Chamber

    AUTOMANN USA

    $61.99
    Single Brake Chamber Type 16 - 6.50 Inch Diameter* High Quality Service Brake Chamber* Stroke Length 2.50 Inch* Rod Threaded Full Length 8.25 Inch x .500 Inch -20 TPI* Clevis Included* Sold...
    09-051701
    SKU:
    09-051701
    Truck Class:
    Heavy Duty
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $61.99
    Qty in Cart: 0
    Price:
    $61.99
    Subtotal:
  • Brake Drum 15 X 5 Inch Replaces 3754, 3754X, 61951, 61951B

    Brake Drum 15 X 5 Inch Replaces 3754, 3754X, 61951, 61951B

    AUTOMANN USA

    $321.99
    10 Hole Brake Drum With 15 Inch Brake Surface & 9.52 Inch Overall Depth* High Quality Brake Drum* Dimensions:- Brake Surface Diameter - 15.000 Inch - Overall Depth- 9.520 Inch - Brake Surface Flat -...
    09-051700000
    SKU:
    09-051700000
    Material Options:
    Steel
    Product Type:
    Frame & Chassis
    Truck Class:
    Heavy Duty
    Diameter Options:
    15 Inch
    Make:
    Universal Items
    $321.99
    Qty in Cart: 0
    Price:
    $321.99
    Subtotal:
  • 33 MM X 4 3/4 Inch Chrome Spike Thread On Lug Nut Covers - 60 Pack

    33 MM X 4 3/4 Inch Chrome Spike Thread On Lug Nut Covers - 60 Pack

    AFTERMARKET

    $157.99
    Thread On Chrome Plastic 33 MM Lug Nut Cover With Hex Base & Spiked Top* High Quality Lug Nut Cover* Chrome-Plated Plastic * Dimensions:  - 33 MM  - 4 3/4 Inch Height * Thread-On Mounting* Spike Top...
    09-05060038
    SKU:
    09-05060038
    Truck Class:
    Universal
    Finish Options:
    Chrome-Plated
    Product Type:
    Wheels
    Make:
    Universal Items
    $157.99
    Qty in Cart: 0
    Price:
    $157.99
    Subtotal:
  • 96 Inch Slider Air Hose Assembly, 3/8 Inch ID

    96 Inch Slider Air Hose Assembly, 3/8 Inch ID

    AFTERMARKET

    $29.99
    96 Inch Slider Air Brake Hose Replaces 16SL9662, 15SL9662, 457096* High Quality Slider Hose Assembly* Rubber* 3/8 Inch I.D.* 96 Inch Overall Length * With Compression Bulkhead Fittings For 3/8 Inch...
    09-05040067
    SKU:
    09-05040067
    Product Type:
    Air, Electrical, & Safety
    Truck Class:
    Universal
    Material Options:
    Rubber
    Make:
    Universal Items
    $29.99
    Qty in Cart: 0
    Price:
    $29.99
    Subtotal:
  • Hydraulic Hose Fitting JIC 37 Female 90, Thread 1 ID X 1-5/16 Inch- 12

    Hydraulic Hose Fitting JIC 37 Female 90, Thread 1 ID X 1-5/16 Inch- 12

    AFTERMARKET

    $99.99
    JIC 37 Female 90 Degree Hydraulic Hose Fitting Replaces 14440-1616, 144401616, B2-JCFX90L-1616, B2JCFX90L1616* High Quality Hydraulic Hose Fitting* JIC Female * 37 Degree Flare-SAE J514 Thread Type*...
    09-02500240
    SKU:
    09-02500240
    Diameter Options:
    1 Inch
    Product Type:
    Cargo Control
    Style Options:
    Elbow
    Degree Options:
    90
    Make:
    Universal Items
    $99.99
    Qty in Cart: 0
    Price:
    $99.99
    Subtotal:
  • Uni- Crimp Fitting SAE 45 Female 90 Thread 1/2 ID X 3/4 Inch - 16

    Uni- Crimp Fitting SAE 45 Female 90 Thread 1/2 ID X 3/4 Inch - 16

    AFTERMARKET

    $48.18
    Uni- Crimp Fitting SAE 45 Female 90 Thread* High Quality Hose Fitting* SAE 45 Female * 90 Degree Elbow* Uni-Crimp* Overall Length: 2.70 Inches* Hose End: 1/2 Inch Inner Diameter* Female Pipe End: 3/4...
    09-02500157
    SKU:
    09-02500157
    Product Type:
    Cargo Control
    Style Options:
    Elbow
    Degree Options:
    90
    Diameter Options:
    1/2 Inch
    Make:
    Universal Items
    $48.18
    Qty in Cart: 0
    Price:
    $48.18
    Subtotal:
  • Hydraulic Hose Fitting JIC 37 Female 90 Thread 3/4 ID X 1-1/16 Inch-12

    Hydraulic Hose Fitting JIC 37 Female 90 Thread 3/4 ID X 1-1/16 Inch-12

    AFTERMARKET

    $74.99
    90 Degree JIC 37 FemaleHydraulic Hose Fitting Replaces 14440-1212, 144401212, B2-JCFX90L-1212, B2JCFX90L1212* High Quality Hydraulic Hose Fitting* JIC Female * 37 Degree Flare-SAE J514 Thread Type*...
    09-02500215
    SKU:
    09-02500215
    Diameter Options:
    3/4 Inch
    Product Type:
    Cargo Control
    Style Options:
    Elbow
    Degree Options:
    90
    Make:
    Universal Items
    $74.99
    Qty in Cart: 0
    Price:
    $74.99
    Subtotal:
  • Hydraulic Hose Fitting JIC 37 Female 5/8 ID X 7/8 Inch - 14

    Hydraulic Hose Fitting JIC 37 Female 5/8 ID X 7/8 Inch - 14

    AFTERMARKET

    $52.99
    Hydraulic Hose Fitting JIC 37 Female 90* High Quality Hose Fitting* Dimensions:  - 5/8 Inch Hose ID  - 3.52 Inch Length  - 7/8 Inch-14* Hydraulic* Female * 90 Degree * Made In USA* Sold Individually*...
    09-02500105
    SKU:
    09-02500105
    Length Options:
    3 1/2 Inch
    Product Type:
    Cargo Control
    Degree Options:
    90
    Diameter Options:
    5/8 Inch
    Make:
    Universal Items
    $52.99
    Qty in Cart: 0
    Price:
    $52.99
    Subtotal:
  • Uni-Crimp Hose Fitting, JIC 37 Female, 5/8 ID X 7/8 Inch - 14 X 3.920 Inch

    Uni-Crimp Hose Fitting, JIC 37 Female, 5/8 ID X 7/8 Inch - 14 X 3.920 Inch

    AUTOMANN USA

    $28.91
    45 Degree Elbow Hydraulic Coupling / Adapter* High Quality Uni-Crimp Hose Fitting* Dimensions:  - Hose I.D.- 5/8 Inch  - A/F- 1.062 Inch  - Thread- 7/8 Inch-14* Sold Individually* Warranty On...
    09-02500192
    SKU:
    09-02500192
    Product Type:
    Cargo Control
    Make:
    Universal Items
    $28.91
    Qty in Cart: 0
    Price:
    $28.91
    Subtotal:
  • Hydraulic Hose Fitting ORFS Female Thread 3/4 ID X 13/16 Inch - 12 X 3.65 Inch

    Hydraulic Hose Fitting ORFS Female Thread 3/4 ID X 13/16 Inch - 12 X 3.65 Inch

    AUTOMANN USA

    $29.98
    Hydraulic Hose Fitting ORFS Female Replaces 29700-1212, 297001212, SG-OFFX-1212, SGOFFX1212* High Quality Hydraulic Hose Fitting* ORFS Female* For SR12 Hose Series* O-Ring Face Seal-SAE J1453...
    09-02500151
    SKU:
    09-02500151
    Product Type:
    Cargo Control
    Style Options:
    Swivel
    Diameter Options:
    3/4 Inch
    Length Options:
    3 5/8 Inch
    Make:
    Universal Items
    $29.98
    Qty in Cart: 0
    Price:
    $29.98
    Subtotal:
  • Uni- Crimp Fitting SAE 45 Female 45 Thread 1/2 ID X 3/4 Inch - 16

    Uni- Crimp Fitting SAE 45 Female 45 Thread 1/2 ID X 3/4 Inch - 16

    AUTOMANN USA

    $34.26
    Uni- Crimp Fitting SAE 45 Female 45 Thread Replaces UC-SFFX45-0808* High Quality Hose Fitting* SAE 45 Female * 45 Degree Elbow* Uni-Crimp* Hose End: 1/2 Inch Inner Diameter* Female Pipe End: 3/4 Inch...
    09-02500155
    SKU:
    09-02500155
    Product Type:
    Cargo Control
    Style Options:
    Elbow
    Degree Options:
    45
    Diameter Options:
    1/2 Inch
    Make:
    Universal Items
    $34.26
    Qty in Cart: 0
    Price:
    $34.26
    Subtotal:
  • Hydraulic Hose Fitting ORFS Female 45 Thread 1/2 ID X 13/16 Inch - 16

    Hydraulic Hose Fitting ORFS Female 45 Thread 1/2 ID X 13/16 Inch - 16

    AUTOMANN USA

    $34.26
    45 Degree Female Hydraulic Hose ORFS Fitting Replaces SG-OFFX45-0808, SGOFFX450808* High Quality Hydraulic Hose Fitting* ORFS Female* 45 Degree Elbow* Hose End: 1/2 Inch Inner Diameter* Female Pipe...
    09-02500126
    SKU:
    09-02500126
    Product Type:
    Cargo Control
    Style Options:
    Elbow
    Degree Options:
    45
    Diameter Options:
    1/2 Inch
    Make:
    Universal Items
    $34.26
    Qty in Cart: 0
    Price:
    $34.26
    Subtotal:
  • Hydraulic Hose Fitting JIC 37 Female 5/8 ID X 1-1/16 Inch - 12

    Hydraulic Hose Fitting JIC 37 Female 5/8 ID X 1-1/16 Inch - 12

    AFTERMARKET

    $61.99
    Hydraulic Hose Fitting JIC 37 Female 90* High Quality Hose Fitting* Dimensions:  - 5/8 Inch Hose ID  - 3.94 Inch  - 1 1/16 Inch-12* Hydraulic* Female * 90 Degree * Made In USA* Sold Individually*...
    09-02500106
    SKU:
    09-02500106
    Length Options:
    4 Inch
    Product Type:
    Cargo Control
    Degree Options:
    90
    Diameter Options:
    5/8 Inch
    Make:
    Universal Items
    $61.99
    Qty in Cart: 0
    Price:
    $61.99
    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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