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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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  • 1-1/16 Inch Chrome Plastic Push- On Top Hat Nut Cover

    1-1/16 Inch Chrome Plastic Push- On Top Hat Nut Cover

    LIFETIME NUT COVERS

    $3.05
    Chrome 1-1/16 Inch Top Hat Nut CoverMaintain the integrity of your lift axle nuts with the 1-1/16 Inch Chrome Plastic Push-On Top Hat Nut Cover, designed for durability and visual appeal. Constructed...
    09-05060095
    SKU:
    09-05060095
    Location:
    Made In USA
    Finish Options:
    Chrome-Plated
    Style Options:
    Top Hat
    Material Options:
    Plastic/Poly
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $3.05
    Qty in Cart: 0
    Price:
    $3.05
    Subtotal:
  • Stainless Steel Turn Signal Light Brackets W/ Out Logo & Lights

    Stainless Steel Turn Signal Light Brackets W/ Out Logo & Lights

    SHIFT PRODUCTS

    $145.99
    Turn Signal Light Brackets W/ Out Logo & LightsAdd strength, durability, and visual appeal to your truck's turn signal lights with the Stainless Steel Turn Signal Light Brackets. Made from premium...
    09-09150131
    SKU:
    09-09150131
    Light Options:
    Without Lights
    Style Options:
    Watermelon
    Material Options:
    Stainless Steel
    Product Type:
    Exterior
    Make:
    Universal Items
    $145.99
    Qty in Cart: 0
    Price:
    $145.99
    Subtotal:
  • Steel Adapter JIC Male/NPTF Female Replaces JCM06-NPF06

    Steel Adapter JIC Male/NPTF Female Replaces JCM06-NPF06

    AUTOMANN USA

    $4.40
    3/8 Inch-18 ID X 9/16 Inch-18 Steel AdapterMaintain superior hydraulic and fuel system integrity with the Steel Adapter JIC Male/NPTF Female, a high-strength solution for professional applications...
    09-02500246
    SKU:
    09-02500246
    Product Type:
    Cargo Control
    Material Options:
    Steel
    Diameter Options:
    3/8 Inch
    Make:
    Universal Items
    $4.40
    Qty in Cart: 0
    Price:
    $4.40
    Subtotal:
  • 24 X 24 Inch Black Powder Coated Steel Mounting Bracket For Under Body Tool Boxes

    24 X 24 Inch Black Powder Coated Steel Mounting Bracket For Under Body Tool Boxes

    AUTOMANN USA

    $140.99
    24 X 24 Inch Under Body Tool Box Mounting BracketsSecure your underbody tool boxes with the 24 X 24 Inch Black Powder Coated Steel Mounting Bracket, designed for heavy-duty strength and long-lasting...
    09-020100551
    SKU:
    09-020100551
    Product Type:
    Frame & Chassis
    Finish Options:
    Black Powder Coat
    Material Options:
    Steel
    Width Options:
    24 Inch
    Length Options:
    24 Inch
    Make:
    Universal Items
    $140.99
    Qty in Cart: 0
    Price:
    $140.99
    Subtotal:
  • Stainless Steel Mud Flap Hanger 30 X 7.25 Inch W/ 2.5 Inch Bolt Spacing, 6 Round 4 Inch Watermelon Red/Green LEDs & Clear Lens

    Stainless Steel Mud Flap Hanger 30 X 7.25 Inch W/ 2.5 Inch Bolt Spacing, 6 Round 4 Inch Watermelon Red/Green LEDs & Clear Lens

    TRUX ACCESSORIES

    $389.99
    Mud Flap Hanger 30 X 7.25 Inch Stainless Steel W/ 2.5 Inch Bolt Spacing, 6 Round 4 Inch Watermelon Red/Green LEDs & Clear LensEnsure your truck stands out on the road with these 30 Inch Stainless...
    09-011200065
    SKU:
    09-011200065
    Light Options:
    With Lights
    Height Options:
    7 Inch
    Width Options:
    30 Inch
    Color:
    Red/Green
    Style Options:
    Watermelon
    Finish Options:
    Mirror
    Material Options:
    Stainless Steel
    Product Type:
    Bumpers
    Make:
    Universal Items
    $389.99
    Qty in Cart: 0
    Price:
    $389.99
    Subtotal:
  • Vendetta Steel Half Fender Bracket Blind Mount W/ Front Suspension Brackets & Class 8 Universal Mounting Brackets For Kenworth

    Vendetta Steel Half Fender Bracket Blind Mount W/ Front Suspension Brackets & Class 8 Universal Mounting Brackets For Kenworth

    VENDETTA

    $613.99
    Steel Half Fender Bracket Blind Mount W/ 2 Front Suspension Brackets & 2 Class 8 Universal Mounting Brackets By Vendetta Fits KenworthUpgrade your Class 8 truck with the AG400 8 Bag Half Fender...
    02-1110006
    SKU:
    02-1110006
    Material Options:
    Steel
    Product Type:
    Rear Fenders
    Width Options:
    1/2 Inch
    Make:
    Kenworth
    Position:
    Kit Full
    Type Options:
    Blind Mount
    Style Options:
    Half Fender
    Location:
    Made In USA
    $613.99
    Qty in Cart: 0
    Price:
    $613.99
    Subtotal:
  • 15 Inch Front Stainless Steel Air Cleaner Panels W/ 2 Watermelon Light Holes For Kenworth

    15 Inch Front Stainless Steel Air Cleaner Panels W/ 2 Watermelon Light Holes For Kenworth

    JML KUSTOMS

    $210.99
    15 Inch Front Air Cleaner Panels W/ 2 Watermelon Light HolesAdd style, function, and durability to your Kenworth with the 15 Inch Front Stainless Steel Air Cleaner Panels with 2 Watermelon Light...
    02-090500419
    SKU:
    02-090500419
    Material Options:
    Stainless Steel
    Product Type:
    Exterior
    Light Options:
    Without Lights
    Height Options:
    15 Inch
    Style Options:
    Straight Drop
    Make:
    Kenworth
    Ready To Ship:
    Yes
    $210.99
    Qty in Cart: 0
    Price:
    $210.99
    Subtotal:
  • Webbed Cargo Strap 2” X 30’ W/ Narrow Flat Hooks

    Webbed Cargo Strap 2” X 30’ W/ Narrow Flat Hooks

    BESTFIT TRUCK PARTS

    $19.99
    Narrow Flat Hook Ratchet AssemblyThe 2" x 30' Webbed Cargo Strap with Narrow Flat Hooks is built for reliable load securement on flatbeds, trailers, and other heavy-duty applications. Featuring a...
    09-0207136
    SKU:
    09-0207136
    Product Type:
    Cargo Control
    Rating:
    2000 LBS
    Color:
    Yellow
    Length Options:
    360 Inch
    Make:
    Universal Items
    Width Options:
    2 Inch
    Ready To Ship:
    Yes
    $19.99
    Qty in Cart: 0
    Price:
    $19.99
    Subtotal:
  • 4 Bay J-Lock Load Lock Rack With Tray- Vertical Mount

    4 Bay J-Lock Load Lock Rack With Tray- Vertical Mount

    JONES MFG

    $129.99
    Vertical Mount 4 Bay J-Lock Load Lock Rack With TraySecure and organize your load bars with the 4 Bay J-Lock Load Lock Rack with Tray - Vertical Mount. Crafted from powder-coated aluminum for lasting...
    09-020200095
    SKU:
    09-020200095
    Finish Options:
    Black Powder Coat
    Material Options:
    Aluminum
    Product Type:
    Cargo Control
    Make:
    Universal Items
    $129.99
    Qty in Cart: 0
    Price:
    $129.99
    Subtotal:
  • Hub Cap Oiler Center Fill Plug Replaces E04000, E04000V, 9105S

    Hub Cap Oiler Center Fill Plug Replaces E04000, E04000V, 9105S

    AUTOMANN USA

    $1.31
    1.62 Inch Oil Hub Cap Center Fill PlugKeep your wheel hubs sealed and protected with this Oil Hub Cap Center Fill Plug. Crafted from high-quality materials, this plug is designed for long-lasting...
    29-20200057
    SKU:
    29-20200057
    Diameter Options:
    1 1/2 Inch
    Product Type:
    Wheels
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $1.31
    Qty in Cart: 0
    Price:
    $1.31
    Subtotal:
  • Stainless Steel Watermelon Light Bracket- No lights For Kenworth

    Stainless Steel Watermelon Light Bracket- No lights For Kenworth

    SHIFT PRODUCTS

    $42.83
    Watermelon Light Bracket- No lightsFor a clean, polished lighting upgrade, choose the Stainless Steel Watermelon Light Bracket - No Lights designed specifically for Kenworth models. Made with...
    29-16110000
    SKU:
    29-16110000
    Style Options:
    Watermelon
    Product Type:
    Lighting
    Make:
    Kenworth
    $42.83
    Qty in Cart: 0
    Price:
    $42.83
    Subtotal:
  • MV3 Type Dash Control Module Replaces 065379, 065159, 800517

    MV3 Type Dash Control Module Replaces 065379, 065159, 800517

    AFTERMARKET

    $122.99
    MV3 Type Dash Control ModuleEnsure your heavy-duty truck's brakes respond exactly when needed with this MV3 type dash control module, replacing 065379, 065159, and 800517. Featuring five 1/4-inch NPT...
    29-150100075
    SKU:
    29-150100075
    Product Type:
    Interior
    Width Options:
    1 1/2 Inch
    Length Options:
    5 3/4 Inch
    Make:
    Universal Items
    $122.99
    Qty in Cart: 0
    Price:
    $122.99
    Subtotal:
  • Conservator Steer Axle Seal Replaces 35058, MER0136, MER0236

    Conservator Steer Axle Seal Replaces 35058, MER0136, MER0236

    AFTERMARKET

    $32.90
    Steer Axle Conservator SealProtect your steer axle and maintain smooth steering with the Conservator Steer Axle Seal, a high-quality replacement for 35058, MER0136, and MER0236. Featuring an HNBR...
    29-20200060
    SKU:
    29-20200060
    Diameter Options:
    3 1/2 Inch
    Product Type:
    Wheels
    Width Options:
    9 1/4 Inch
    Make:
    Universal Items
    $32.90
    Qty in Cart: 0
    Price:
    $32.90
    Subtotal:
  • Black Poly Molded Coolant Hose Replaces 2869165

    Black Poly Molded Coolant Hose Replaces 2869165

    AFTERMARKET

    $65.99
    1 X 28 Inch Molded Coolant Hose For Cummins ISX EngineExtend the life of your Cummins ISX engine with this durable black molded coolant hose, a direct replacement for 2869165. The molded silicone...
    29-070200032
    SKU:
    29-070200032
    Diameter Options:
    1 Inch
    Style Options:
    Cummins
    Color:
    Black
    Length Options:
    28 Inch
    Product Type:
    Engine Parts
    Material Options:
    Silicone
    Make:
    Universal Items
    $65.99
    Qty in Cart: 0
    Price:
    $65.99
    Subtotal:
  • Pad Mount Alternator Replaces 8600314

    Pad Mount Alternator Replaces 8600314

    AFTERMARKET

    $498.99
    28SI Type AlternatorEquip your truck with this reliable pad mount alternator, engineered for replacement of 8600314. With a 28 SI rating and 200-amp output, it delivers consistent electricity to all...
    29-07090003
    SKU:
    29-07090003
    Product Type:
    Engine Parts
    Style Options:
    Pad Mount
    Make:
    Universal Items
    $498.99
    Qty in Cart: 0
    Price:
    $498.99
    Subtotal:
  • Air Disc Brake Chamber Replaces SC20D, 5396SC20D

    Air Disc Brake Chamber Replaces SC20D, 5396SC20D

    AFTERMARKET

    $111.99
    Type 20 Air Disc Brake CamberEnsure reliable stopping power for your heavy-duty truck with this high-quality Air Disc Brake Chamber. Engineered as a Type 20 chamber, it features an M16 x 1.5 bolt...
    29-051700042
    SKU:
    29-051700042
    Height Options:
    4 1/2 Inch
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $111.99
    Qty in Cart: 0
    Price:
    $111.99
    Subtotal:
  • 1.937 X 3.937 Inch Red Poly Air Intake Hose For Cummins ISX

    1.937 X 3.937 Inch Red Poly Air Intake Hose For Cummins ISX

    AFTERMARKET

    $41.98
    Hot Side Air Intake Hose 1.937 X 3.937 Inch Replaces 3682842, 4919970, 4952644Keep your Cummins ISX EGR system performing at its best with this premium red poly air intake hose. Constructed from...
    29-07110010
    SKU:
    29-07110010
    Material Options:
    Silicone
    Length Options:
    4 Inch
    Product Type:
    Engine Parts
    Diameter Options:
    2 Inch
    Style Options:
    Cummins
    Make:
    Universal Items
    $41.98
    Qty in Cart: 0
    Price:
    $41.98
    Subtotal:
  • MV3 Type Dash Control Module With 1/4 Inch NPT Ports

    MV3 Type Dash Control Module With 1/4 Inch NPT Ports

    AUTOMANN USA

    $144.99
    Dash Control Module With 1/4 Inch NPT PortsDepend on the MV3 Type Dash Control Module for consistent, accurate air brake operation in your commercial truck. Featuring five 1/4-inch NPT ports, it...
    29-051700034
    SKU:
    29-051700034
    Product Type:
    Interior
    Make:
    Universal Items
    $144.99
    Qty in Cart: 0
    Price:
    $144.99
    Subtotal:
  • Dual Circuit Foot Valve Replaces 065313, 800583, 65313X 20QE3296M, R955800629N

    Dual Circuit Foot Valve Replaces 065313, 800583, 65313X 20QE3296M, R955800629N

    AUTOMANN USA

    $96.99
    E8P Type Dual Circuit Foot ValveThe Dual Circuit Foot Valve is a professional-grade air brake solution, delivering precise control for E8 dual-circuit systems. With multiple delivery and supply...
    29-051700035
    SKU:
    29-051700035
    Product Type:
    Interior
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $96.99
    Qty in Cart: 0
    Price:
    $96.99
    Subtotal:
  • On Sale
    Limited Quantity Available
    Pressure Protection Valve Replaces A6814290844, 223-365

    Pressure Protection Valve Replaces A6814290844, 223-365

    AFTERMARKET

    Now: $28.73
    Was: $41.04
    3/8 Inch NPT Pressure Protection ValveSafeguard your truck's pneumatic system with this precision-engineered Pressure Protection Valve, providing reliable pressure control at 65 PSI opening and 55...
    29-05040001
    SKU:
    29-05040001
    Rating:
    65 PSI
    Product Type:
    Exhaust
    Make:
    Universal Items
    Ready To Ship:
    Yes
    Now: $28.73
    Was: $41.04
    Qty in Cart: 0
    Price:
    Now: $28.73
    Was: $41.04
    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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