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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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  • Water Pump For CAT 3406E Replaces 6I3890, 85107759, 44054HD

    Water Pump For CAT 3406E Replaces 6I3890, 85107759, 44054HD

    AFTERMARKET

    $535.99
    Cast Iron Water Pump For CAT 3406EKeep your CAT 3406E diesel engine performing at its best with this premium replacement water pump, compatible with part numbers 6I3890, 85107759, and 44054HD. The...
    29-07120026
    SKU:
    29-07120026
    Material Options:
    Cast Iron
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $535.99
    Qty in Cart: 0
    Price:
    $535.99
    Subtotal:
  • High Temperature Pilot Bearing Replaces 306VV, 63062RS2, 63062RS2C3, 0212176000

    High Temperature Pilot Bearing Replaces 306VV, 63062RS2, 63062RS2C3, 0212176000

    AUTOMANN USA

    $28.43
    High Temperature Pilot BearingReplace worn pilot bearings with this High Temperature Pilot Bearing, compatible with 306VV, 63062RS2, 63062RS2C3, and 0212176000. Built for extreme heat and constant...
    29-07050008
    SKU:
    29-07050008
    Width Options:
    3/4 Inch
    Diameter Options:
    2 3/4 Inch
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $28.43
    Qty in Cart: 0
    Price:
    $28.43
    Subtotal:
  • Poly 90 Degree Radiator Elbow Replaces HE9324, F04-6006 For Kenworth & Peterbilt

    Poly 90 Degree Radiator Elbow Replaces HE9324, F04-6006 For Kenworth & Peterbilt

    AUTOMANN USA

    $52.99
    Poly 90 Degree Radiator Elbow With 2.5 Inch IDReplace your Kenworth or Peterbilt radiator elbow with this high-quality Poly 90 Degree Radiator Elbow. Constructed with four layers of durable...
    29-070200021
    SKU:
    29-070200021
    Length Options:
    4 1/2 Inch
    Color:
    Blue
    Product Type:
    Engine Parts
    Material Options:
    Polyester
    Width Options:
    4 1/2 Inch
    Diameter Options:
    2 1/2 Inch
    Make:
    Peterbilt
    Make:
    Kenworth
    Style Options:
    Elbow
    Degree Options:
    90
    $52.99
    Qty in Cart: 0
    Price:
    $52.99
    Subtotal:
  • Poly Reducer Hose For EGR Fits Cummiins ISX Engine For Freightliner, Kenworth, Peterbilt

    Poly Reducer Hose For EGR Fits Cummiins ISX Engine For Freightliner, Kenworth, Peterbilt

    AUTOMANN USA

    $35.75
    2.25-1.875 ID Inch X 4.125 Inch Reducer HoseMaximize airflow and protect your EGR system with this high-quality Poly Reducer Hose for Cummins ISX engines. Crafted for Freightliner, Kenworth, and...
    29-070200026
    SKU:
    29-070200026
    Product Type:
    Engine Parts
    Length Options:
    4 1/8 Inch
    Style Options:
    Cummins
    Material Options:
    Silicone
    Make:
    Freightliner
    Make:
    Peterbilt
    Make:
    Kenworth
    Color:
    Red
    $35.75
    Qty in Cart: 0
    Price:
    $35.75
    Subtotal:
  • Differential Pinion Seal Replaces 105445R91. 358922C91. 405368C91. 68536R91. 27KH113. 364SZ136. 88AX126. 88AX198. 88AX209. 88AX255. 88AX318P2. 88AX346P2. 88AX360P2. 88AX464. 475009N

    Differential Pinion Seal Replaces 105445R91. 358922C91. 405368C91. 68536R91. 27KH113. 364SZ136. 88AX126. 88AX198. 88AX209. 88AX255. 88AX318P2. 88AX346P2. 88AX360P2. 88AX464. 475009N

    AUTOMANN USA

    $5.77
    Differential Pinion Seal 2.75 X 3.883 Inch OD* High Quality Pinion Seal* Differential* 2.75 Inch Shaft Diameter* 3.883 Inch Outer Diameter* 0.374 Inch Width* Sold Individually* Warranty On Pinion...
    29-05210006
    SKU:
    29-05210006
    Width Options:
    1/4 Inch
    Diameter Options:
    3 1/2 Inch
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $5.77
    Qty in Cart: 0
    Price:
    $5.77
    Subtotal:
  • Clutch Brake Replaces 127760X, 797700C1, 8070265

    Clutch Brake Replaces 127760X, 797700C1, 8070265

    AUTOMANN USA

    $27.34
    Clutch Brake- 2 Inch Torque Limit* High Quality Clutch Brake* 2 Inch Torque Limit* 2.00 Inch Inner Diameter* 4.81 Inch Outer Diameter* 0.44 Inch Width* Sold Individually* Warranty On Clutch Brakes...
    29-07050015
    SKU:
    29-07050015
    Product Type:
    Engine Parts
    Diameter Options:
    4 3/4 Inch
    Width Options:
    1/2 Inch
    Make:
    Universal Items
    $27.34
    Qty in Cart: 0
    Price:
    $27.34
    Subtotal:
  • 2.50 Inch ID Poly 45 Degree Radiator Elbow Replaces F50-1548 For Kenworth & Peterbilt

    2.50 Inch ID Poly 45 Degree Radiator Elbow Replaces F50-1548 For Kenworth & Peterbilt

    AUTOMANN USA

    $26.44
    Poly 45 Degree Radiator Elbow With 2.50 Inch IDImprove your radiator hose setup with the 2.50 Inch ID Poly 45 Degree Radiator Elbow for Kenworth and Peterbilt. Replacement for F50-1548, its durable...
    29-070200022
    SKU:
    29-070200022
    Color:
    Blue
    Diameter Options:
    2 1/2 Inch
    Product Type:
    Engine Parts
    Degree Options:
    45
    Material Options:
    Polyester
    Make:
    Peterbilt
    Make:
    Kenworth
    $26.44
    Qty in Cart: 0
    Price:
    $26.44
    Subtotal:
  • Air Spring Rolling Lobe Replaces 9370, 1R12-580, 64383, AB1DK23N-9370, W01-358-9370 For Watson & Chalin Lift Suspension, Trailer Suspension

    Air Spring Rolling Lobe Replaces 9370, 1R12-580, 64383, AB1DK23N-9370, W01-358-9370 For Watson & Chalin Lift Suspension, Trailer Suspension

    AFTERMARKET

    $177.99
    Rolling Lobe Air Spring For Watson & Chalin Lift and Trailer SuspensionExperience superior suspension support with the Econoride Air Spring Rolling Lobe, built for Watson & Chalin lift suspensions...
    29-05200018
    SKU:
    29-05200018
    Diameter Options:
    9 Inch
    Material Options:
    Plastic/Poly
    Style Options:
    Rolling Lobe
    Height Options:
    18 Inch
    Product Type:
    Frame & Chassis
    Make:
    Trailer
    Make:
    Universal Items
    $177.99
    Qty in Cart: 0
    Price:
    $177.99
    Subtotal:
  • Pinion Seal Replaces 30148. NA710008. 1651281C91. 464244C1. 464244C2. 710008. 4330148

    Pinion Seal Replaces 30148. NA710008. 1651281C91. 464244C1. 464244C2. 710008. 4330148

    AUTOMANN USA

    $21.96
    Pinion Seal 3.90 Bore Diameter X 6.25 Inch* High Quality Pinion Seal* 3.900 Inch Bore Diameter* 2.937 Inch Shaft Diameter* 6.250 Inch Outer Diameter* Sold Individually* Warranty On Pinion Seals...
    29-05210002
    SKU:
    29-05210002
    Product Type:
    Frame & Chassis
    Diameter Options:
    6 1/4 Inch
    Make:
    Universal Items
    $21.96
    Qty in Cart: 0
    Price:
    $21.96
    Subtotal:
  • Double Convoluted Air Spring Replaces FD 200-25 428. . SC2127. S8701. W01-358-6947 1003586947C. 2B9255. 2B9258. 3546947. 57006947. 578923206 For Henrickson Trailer, Ridewell Suspension

    Double Convoluted Air Spring Replaces FD 200-25 428. . SC2127. S8701. W01-358-6947 1003586947C. 2B9255. 2B9258. 3546947. 57006947. 578923206 For Henrickson Trailer, Ridewell Suspension

    AUTOMANN USA

    $141.99
    Double Convoluted Air Spring For Hendrickson Trailer & Ridewell Suspension* High Quality Air Spring* Continental Brand* Double Convoluted* Load At 80 PSI - 2750 Lbs* Load At 100 PSI - 3450 Lbs*...
    29-0510113
    SKU:
    29-0510113
    Height Options:
    10 Inch
    Product Type:
    Frame & Chassis
    Material Options:
    Plastic/Poly
    Diameter Options:
    6 1/4 Inch
    Style Options:
    Double Convolute
    Make:
    Universal Items
    $141.99
    Qty in Cart: 0
    Price:
    $141.99
    Subtotal:
  • Air Spring Rolling Lobe Replaces 9321, 1R12-335, 64715, AB1DK23N-9321 For Hendrickson Turner Lift, Watson & Chalin Lift Suspension

    Air Spring Rolling Lobe Replaces 9321, 1R12-335, 64715, AB1DK23N-9321 For Hendrickson Turner Lift, Watson & Chalin Lift Suspension

    AFTERMARKET

    $202.99
    Rolling Lobe Air Spring For Hendrickson Turner and Watson & Chalin Lift Axle Suspension* High Quality Air Spring*Econoride Brand* Rolling Lobe* Includes: - (2) Top Plate Holes - (4) Bottom Plate...
    29-05200019
    SKU:
    29-05200019
    Style Options:
    Rolling Lobe
    Material Options:
    Plastic/Poly
    Diameter Options:
    9 Inch
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $202.99
    Qty in Cart: 0
    Price:
    $202.99
    Subtotal:
  • Double Convoluted Air Spring Replaces 70658. FD 200-19 894. 1002B09614G For Ridewell Suspension

    Double Convoluted Air Spring Replaces 70658. FD 200-19 894. 1002B09614G For Ridewell Suspension

    AFTERMARKET

    $195.99
    Double Convoluted Air Spring For Ridewell Suspension* High Quality Air Spring* Continental Brand* Double Convoluted* Load At 80 PSI - 2560 Lbs* Load At 100 PSI - 3200 Lbs* Natural Frequency 108 CPM...
    29-05200002
    SKU:
    29-05200002
    Height Options:
    8 Inch
    Product Type:
    Frame & Chassis
    Material Options:
    Plastic/Poly
    Diameter Options:
    6 1/4 Inch
    Style Options:
    Double Convolute
    Make:
    Universal Items
    $195.99
    Qty in Cart: 0
    Price:
    $195.99
    Subtotal:
  • Differential Pinion Seal Replaces 119429. 210737. 29380. 596310C91

    Differential Pinion Seal Replaces 119429. 210737. 29380. 596310C91

    AUTOMANN USA

    $33.73
    Differential Pinion Seal 3.00 X 4.015 Inch OD* High Quality Pinion Seal* Differential* 3.00 Inch Shaft Diameter* 4.015 Inch Outer Diameter* 0.937 Inch Width* Sold Individually* Warranty On Pinion...
    29-05210005
    SKU:
    29-05210005
    Product Type:
    Frame & Chassis
    Width Options:
    1 Inch
    Diameter Options:
    4 Inch
    Make:
    Universal Items
    $33.73
    Qty in Cart: 0
    Price:
    $33.73
    Subtotal:
  • Brake Liner 20K With 6.00 Inch Shoe Width For Meritor Drive/Steer Axle

    Brake Liner 20K With 6.00 Inch Shoe Width For Meritor Drive/Steer Axle

    AFTERMARKET

    $71.99
    Replacement Heavy Duty Brake Lining- 20K- Grade AMF5008* High Quality Brake Lining* 20K Lb Fleet Premium Heavy Duty Rating* Designed For 20,000 Lbs GAWR Steer Axles* 16.50 Inch Drum Diameter* 6.00...
    29-05170017
    SKU:
    29-05170017
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $71.99
    Qty in Cart: 0
    Price:
    $71.99
    Subtotal:
  • King Thrust Pin Bearing Replaces R001620 , 1275113 , A1228D1356

    King Thrust Pin Bearing Replaces R001620 , 1275113 , A1228D1356

    AUTOMANN USA

    $32.15
    King Thrust Pin Bearing- 1.813 ID, 3.281 OD & 0.687 Inch Width* High Quality King Thrust Pin Bearing* 1.813 Inch Inner Diameter* 3.281 Inch Outer Diameter* 0.687 Inch Width* Sold Individually*...
    29-05200013
    SKU:
    29-05200013
    Product Type:
    Frame & Chassis
    Diameter Options:
    3 Inch
    Shape Options:
    Round
    Width Options:
    5/8 Inch
    Make:
    Universal Items
    $32.15
    Qty in Cart: 0
    Price:
    $32.15
    Subtotal:
  • Air Spring Rolling Lobe Replaces 68675. 9 9-12 P 937. W01-358-9584. W01-675-9584. W01-675-9613. 905-57-224. 905-57-250. 905-57-411 For SAF Holland/Neway Suspension

    Air Spring Rolling Lobe Replaces 68675. 9 9-12 P 937. W01-358-9584. W01-675-9584. W01-675-9613. 905-57-224. 905-57-250. 905-57-411 For SAF Holland/Neway Suspension

    AFTERMARKET

    $229.99
    Rolling Lobe Air Spring With Plastic Base- 2 Top Plate Holes & 1 Bottom Plate HolesBoost your truck's suspension durability with the Rolling Lobe Air Spring, engineered for SAF Holland/Neway systems...
    29-05100297
    SKU:
    29-05100297
    Diameter Options:
    9 Inch
    Height Options:
    8 Inch
    Style Options:
    Rolling Lobe
    Material Options:
    Plastic/Poly
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $229.99
    Qty in Cart: 0
    Price:
    $229.99
    Subtotal:
  • Air Spring Rolling Lobe Replaces 9459. A2258U1451. 1003589459C For Meritor, Ridewell Suspension

    Air Spring Rolling Lobe Replaces 9459. A2258U1451. 1003589459C For Meritor, Ridewell Suspension

    AFTERMARKET

    $173.99
    Air Spring Rolling Lobe With Plastic Base - 2 Top Plate Holes & 1 Bottom Plate Holes* High Quality Air Spring* Automann Phoenix Brand* Rolling Lobe* Load At 80 PSI - 5100 Lbs* Load At 100 PSI - 6400...
    29-05100280
    SKU:
    29-05100280
    Height Options:
    8 Inch
    Material Options:
    Plastic/Poly
    Product Type:
    Frame & Chassis
    Diameter Options:
    9 Inch
    Style Options:
    Rolling Lobe
    Make:
    Universal Items
    $173.99
    Qty in Cart: 0
    Price:
    $173.99
    Subtotal:
  • Air Spring Rolling Lobe Replaces 64321. 69653. 910-16P547. 9496. W01-358-9496. W01-675-9496. 90557208 For SAF Holland/Neway Suspension

    Air Spring Rolling Lobe Replaces 64321. 69653. 910-16P547. 9496. W01-358-9496. W01-675-9496. 90557208 For SAF Holland/Neway Suspension

    AFTERMARKET

    $244.99
    Rolling Lobe Air Spring For Neway/ Holland Rear Drive Air Suspension* High Quality Air Spring* Automann Phoenix Brand* Rolling Lobe* Load At 80 PSI - 5500 Lbs* Load At 100 PSI - 7000 Lbs* Natural...
    29-05100287
    SKU:
    29-05100287
    Product Type:
    Frame & Chassis
    Diameter Options:
    9 Inch
    Style Options:
    Rolling Lobe
    Height Options:
    13 1/2 Inch
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    $244.99
    Qty in Cart: 0
    Price:
    $244.99
    Subtotal:
  • Air Spring Rolling Lobe Replaces 8992, 68118, 263581, 1003588992C For Ridewell Suspension

    Air Spring Rolling Lobe Replaces 8992, 68118, 263581, 1003588992C For Ridewell Suspension

    AFTERMARKET

    $261.99
    Rolling Lobe Air Spring With Steel Base For Ridewell Suspension* High Quality Air Spring* Automann Phoenix Brand* Rolling Lobe* Load At 80 PSI - 2900 Lbs* Natural Frequency 86 CPM (Cycles Per...
    29-05100303
    SKU:
    29-05100303
    Material Options:
    Steel
    Product Type:
    Frame & Chassis
    Diameter Options:
    6 1/4 Inch
    Style Options:
    Rolling Lobe
    Height Options:
    7 Inch
    Make:
    Universal Items
    $261.99
    Qty in Cart: 0
    Price:
    $261.99
    Subtotal:
  • Air Spring Rolling Lobe Replaces 64317. 910-16P500. RA 1954-11. 9474. W01-358-9474. 20966-01 For Reyco Granning Suspension

    Air Spring Rolling Lobe Replaces 64317. 910-16P500. RA 1954-11. 9474. W01-358-9474. 20966-01 For Reyco Granning Suspension

    AFTERMARKET

    $229.99
    Rolling Lobe Air Spring With Plastic Base- 2 Top Plate Holes & 4 Bottom Plate Holes* High Quality Air Spring* Automann Phoenix Brand* Rolling Lobe* Load At 80 PSI - 5500 Lbs* Load At 100 PSI - 7000...
    29-05100278
    SKU:
    29-05100278
    Product Type:
    Frame & Chassis
    Diameter Options:
    9 Inch
    Style Options:
    Rolling Lobe
    Height Options:
    13 Inch
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    $229.99
    Qty in Cart: 0
    Price:
    $229.99
    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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