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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 $249
    MV3 Type Dash Valve Control Module W/ 5 - 3/8 Inch PLC Ports Replaces 21315044, 21750583

    MV3 Type Dash Valve Control Module W/ 5 - 3/8 Inch PLC Ports Replaces 21315044, 21750583

    AFTERMARKET

    $209.99
    MV3 Type Dash Valve Control Module W/ 3.5 X 4.2 Inch C To C* High Quality Dash Valve* MV3 Type Dash Control Module* (5) 3/8 Inch PLC Ports* Dimensions:  - 3.5 Inch Center To Center Width  - 4.2 Inch...
    09-05170491
    SKU:
    09-05170491
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $209.99
    Qty in Cart: 0
    Price:
    $209.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Dash Valve MV3 Type Dash Control Module W/ Integral Push-Lock-Connect Fittings Replaces 170.802122, 170.802122WF

    Dash Valve MV3 Type Dash Control Module W/ Integral Push-Lock-Connect Fittings Replaces 170.802122, 170.802122WF

    AFTERMARKET

    $123.99
    Dash Valve W/ 4 - 3/8 Inch PLC Ports & 1/2 Inch PLC Exhaust Port* High Quality Dash Valve* MV3 Type Dash Control Module With Integral Push-Lock-Connect Fittings* Auxiliary Port Not Existent* Trailer...
    09-05170482
    SKU:
    09-05170482
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $123.99
    Qty in Cart: 0
    Price:
    $123.99
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  • FREE SHIPPING OVER $249
    Air Dryer Cartridge W/ New Style End Cover 7 Exterior Purge Valve Housing Replaces 170.800202, 5002063

    Air Dryer Cartridge W/ New Style End Cover 7 Exterior Purge Valve Housing Replaces 170.800202, 5002063

    AFTERMARKET

    $219.99
    Air Dryer Cartridge W/ 1/2 Inch NPT Delivery/Supply Ports & 1/4 Inch NPT Control Port* High Quality Air Dryer Cartridge* Complete AD9 Type Air Dryer Assembly* New Style End Cover With Additional Port...
    09-05170476
    SKU:
    09-05170476
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $219.99
    Qty in Cart: 0
    Price:
    $219.99
    Subtotal:
  • FREE SHIPPING OVER $249
    RG2 Type Relay Valve W/ .35 Inch Diameter Mounting Bracket Holes 1.5 Inch C To C Replaces 170.KN28500

    RG2 Type Relay Valve W/ .35 Inch Diameter Mounting Bracket Holes 1.5 Inch C To C Replaces 170.KN28500

    AFTERMARKET

    $38.99
    RG2 Type Relay Valve 5.6 PSI Crack Pressure W/ Control, Reservoir & Deliver NPT Ports* High Quality Relay Valve* RG2 Type Relay Valve* 5.6 PSI Crack Pressure* (2) 0.35 Inch Diameter Mounting Bracket...
    09-05170487
    SKU:
    09-05170487
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $38.99
    Qty in Cart: 0
    Price:
    $38.99
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  • FREE SHIPPING OVER $249
    D2 Type Governor W/ 105 PSI Cut-In & 125 PSI Cut-Out Replaces 170.284358

    D2 Type Governor W/ 105 PSI Cut-In & 125 PSI Cut-Out Replaces 170.284358

    AFTERMARKET

    $19.99
    D2 Type Governor W/ Gasket, 4 Plugs & High Temp O-Rings* High Quality Governor* D2 Type* 105 PSI Cut-In* 125 PSI Cut-Out* Adjustable* Includes:  - (1) Governor  - (1) Gasket  - (4) Plugs  - High Temp...
    09-05170478
    SKU:
    09-05170478
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $19.99
    Qty in Cart: 0
    Price:
    $19.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Purge Valve Kit W/ Soft Seat Replaces 170.K031560, BER-K031560 For ADIS EverFlow Type And ADIP Drop-In Type Air Dryers

    Purge Valve Kit W/ Soft Seat Replaces 170.K031560, BER-K031560 For ADIS EverFlow Type And ADIP Drop-In Type Air Dryers

    AFTERMARKET

    $79.99
    Purge Valve Kit W/ Soft Seat Fits ADIS EverFlow Type And ADIP Drop-In Type Air Dryers Replaces 170.K031560, BER-K031560* High Quality Purge Valve Kit* Replacement Purge Valve For ADIP And ADIS...
    09-05170477
    SKU:
    09-05170477
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $79.99
    Qty in Cart: 0
    Price:
    $79.99
    Subtotal:
  • FREE SHIPPING
    Air Dryer Cartridge Coalescing ADIS Type W/ 1/2 Inch 14 NPT Supply/Inlet Port Replaces 170.5010134PG

    Air Dryer Cartridge Coalescing ADIS Type W/ 1/2 Inch 14 NPT Supply/Inlet Port Replaces 170.5010134PG

    AFTERMARKET

    $339.99
    Air Dryer Cartridge W/ Opening Pressure 106 PSI* High Quality Air Dryer Cartridge* Complete Coalescing ADIS Type Air Dryer Assembly* Cartridge Type* 12V-90W* Primary Port 1/4 Inch NPT Opening...
    09-05170472
    SKU:
    09-05170472
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $339.99
    Qty in Cart: 0
    Price:
    $339.99
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  • FREE SHIPPING OVER $249
    R12 Type Pilot Relay Valve Replaces 170.065476

    R12 Type Pilot Relay Valve Replaces 170.065476

    AFTERMARKET

    $67.99
    R12 Type Pilot Relay Valve W/ 1 - 1/4 NPT Control Port, 2 - 1/2 Inch NPT Supply Ports & 4 - 3/8 Inch NPT Delivery Ports* High Quality Relay Valve* R12 Type Pilot Relay Valve* Ports:  - (1) 1/4 Inch...
    09-05170483
    SKU:
    09-05170483
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $67.99
    Qty in Cart: 0
    Price:
    $67.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Air Dryer Cartridge 5.35 X 9.68 Inch W/ Cartridge & O-Ring Replaces 170.950069, 432421922 For Wabco SS1800 Type Air Dryers

    Air Dryer Cartridge 5.35 X 9.68 Inch W/ Cartridge & O-Ring Replaces 170.950069, 432421922 For Wabco SS1800 Type Air Dryers

    AFTERMARKET

    $104.99
    Air Dryer Cartridge M39 1.5 Thread Fits Wabco SS1800 Type Air Dryers Replaces 170.950069, 432421922* High Quality Air Dryer Cartridge* Replacement Coalescing Cartridge For Wabco SS1800 Type Air...
    09-05170474
    SKU:
    09-05170474
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $104.99
    Qty in Cart: 0
    Price:
    $104.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Air Dryer Cartridge 10.5 X 6.5 Inch W/ Cartridge & O-Ring Replaces 170.T224, R955T224N For Turbo 2000 Type Air Dryers

    Air Dryer Cartridge 10.5 X 6.5 Inch W/ Cartridge & O-Ring Replaces 170.T224, R955T224N For Turbo 2000 Type Air Dryers

    AFTERMARKET

    $57.99
    Air Dryer Cartridge 1.5 Inch 16 Thread Fits Turbo 2000 Type Air Dryers Replaces 170.T224, R955T224N* High Quality Air Dryer Cartridge* Replacement Desiccant Cartridge For Turbo 2000 Type Air Dryers*...
    09-05170473
    SKU:
    09-05170473
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $57.99
    Qty in Cart: 0
    Price:
    $57.99
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  • FREE SHIPPING
    Air Dryer Cartridge W/ 1/4 Inch NPT Control Port & 1/2 Inch NPT Inlet & Delivery Ports

    Air Dryer Cartridge W/ 1/4 Inch NPT Control Port & 1/2 Inch NPT Inlet & Delivery Ports

    AFTERMARKET

    $256.99
    Air Dryer Cartridge W/ Heater Repair Kit & Purge Valve Replaces 170.955300, R955300* High Quality Air Dryer Cartridge* Wabco SS1200P Type Compatibility* Complete SS1200P Non-Regeneration Type Air...
    09-05170468
    SKU:
    09-05170468
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $256.99
    Qty in Cart: 0
    Price:
    $256.99
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  • FREE SHIPPING OVER $249
    Governor W/ Tire Inflator Valve Replaces 002-431-00-06, 002-431-49-06

    Governor W/ Tire Inflator Valve Replaces 002-431-00-06, 002-431-49-06

    AFTERMARKET

    $68.99
    Governor W/ Operating Temps -40 To 185 Degree Fahrenheit* High Quality Governor* Operating Temps From -40 To 185 Degrees Farenheit* Tire Inflator Valve* Sold Individually* Warranty On Governors...
    09-05170479
    SKU:
    09-05170479
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $68.99
    Qty in Cart: 0
    Price:
    $68.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Air Dryer Cartridge PG AD-9 Cartridge W/ Cartridge & O-Ring

    Air Dryer Cartridge PG AD-9 Cartridge W/ Cartridge & O-Ring

    AFTERMARKET

    $61.99
    Air Dryer Cartridge W/ 150 Lb Per Square Inch Max Operation Pressure* High Quality Air Dryer Cartridge* PG AD-9 Cartridge Type* Replacement For Bendix AD-8* Desiccant-Coalescing* 150 Lb Per Square...
    09-05170470
    SKU:
    09-05170470
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $61.99
    Qty in Cart: 0
    Price:
    $61.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Purge Valve Kit W/ Soft Seat Piston Assembly Replaces 034087, 107798 For AD9 Type Air Dryer

    Purge Valve Kit W/ Soft Seat Piston Assembly Replaces 034087, 107798 For AD9 Type Air Dryer

    AFTERMARKET

    $19.99
    Purge Valve Kit 1/8 Inch NPT Thread Replaces 034087, 107798* High Quality Purge Valve Kit* Maintenance Kit for Purge Valve Assembly For AD9 Type Air Dryer (Not Included)* Hard Seat* 1/8 Inch NPT...
    09-05170469
    SKU:
    09-05170469
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $19.99
    Qty in Cart: 0
    Price:
    $19.99
    Subtotal:
  • FREE SHIPPING
    Air Dryer Cartridge Primary/Secondary Port 1/4 Inch NPT Replaces BWK049086, BXK049086

    Air Dryer Cartridge Primary/Secondary Port 1/4 Inch NPT Replaces BWK049086, BXK049086

    AFTERMARKET

    $692.99
    Air Dryer Cartridge W/ Opening Pressures 103 - 112 PSI* High Quality Air Dryer Cartridge* Complete ADIS Type Air Dryer Assembly 12V-90W* Primary Port 1/4in NPT, Opening Pressure 103PSI* Secondary...
    09-05170464
    SKU:
    09-05170464
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $692.99
    Qty in Cart: 0
    Price:
    $692.99
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  • FREE SHIPPING
    Air Dryer Cartridge W/ 130 Lb Per Square Inch Max Operating Pressure Replaces 432421039R, 4324210540 For Wabco SS1800P Type Air Dryers

    Air Dryer Cartridge W/ 130 Lb Per Square Inch Max Operating Pressure Replaces 432421039R, 4324210540 For Wabco SS1800P Type Air Dryers

    AFTERMARKET

    $347.99
    Air Dryer Cartridge M39 1.5 Thread W/ Control Port 1/4 Inch - 18 NPTF & Delivery Port 1/2 Inch 14 NPTF Fits Wabco SS1800P Type Air Dryers* High Quality Air Dryer Cartridge* Replacement Coalescing...
    09-05170475
    SKU:
    09-05170475
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $347.99
    Qty in Cart: 0
    Price:
    $347.99
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    Air Dryer Cartridge World American AD-IS Standard Design Replaces 170.800383, 3625-823-C

    Air Dryer Cartridge World American AD-IS Standard Design Replaces 170.800383, 3625-823-C

    AFTERMARKET

    $430.99
    Air Dryer Cartridge 1/4 Inch Accessory & Suspension Ports W/O Service Port* High Quality Air Dryer Cartridge* World American AD-IS Standard Cartridge Design* 12V DC, 90 W* 1/4 Inch Accessory And...
    09-05170466
    SKU:
    09-05170466
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $430.99
    Qty in Cart: 0
    Price:
    $430.99
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    Air Dryer Cartridge Complete SS1200UP Type Coalescing Replaces 20935355, 20991972

    Air Dryer Cartridge Complete SS1200UP Type Coalescing Replaces 20935355, 20991972

    AFTERMARKET

    $312.99
    Air Dryer Cartridge 12V DC & 100W* High Quality Air Dryer Cartridge* Complete SS1200UP Type Coalescing Air Dryer Assembly* 12V DC, 100W* Uses External Purge Tank, And Uses The Discharge Line For...
    09-05170465
    SKU:
    09-05170465
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $312.99
    Qty in Cart: 0
    Price:
    $312.99
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  • Stainless Steel Angled Bottom Mud Flap Weight 24 Inch Bolted

    Stainless Steel Angled Bottom Mud Flap Weight 24 Inch Bolted

    TRUX ACCESSORIES

    $52.99
    Bolted Angled Bottom Mud Flap Weight 24 Inch Stainless SteelAdd a polished, custom look to your truck with theStainless Steel Angled Bottom Mud Flap Weight 24 Inch Bolted. Crafted from durable...
    09-0507384
    SKU:
    09-0507384
    Product Type:
    Mud Flaps
    Ready To Ship:
    Yes
    Make:
    Universal Items
    $52.99
    Qty in Cart: 0
    Price:
    $52.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Air Dryer Cartridge 7.388 X 7.28 Inch Replaces 170.65624K, 065624 For ADIP Type Air Dryer

    Air Dryer Cartridge 7.388 X 7.28 Inch Replaces 170.65624K, 065624 For ADIP Type Air Dryer

    AFTERMARKET

    $160.99
    Air Dryer Cartridge W/ O-Ring & Grease* High Quality Air Dryer Cartridge* Replacement Desiccant Cartridge For ADIP Type Air Dryer* 150 Lb Per Square Inch Max Operation Pressure* Includes:  -...
    09-05170471
    SKU:
    09-05170471
    Product Type:
    Air, Electrical, & Safety
    Make:
    Universal Items
    $160.99
    Qty in Cart: 0
    Price:
    $160.99
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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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