null

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.
  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • BESTfit Power Take-Off 6 Bolt Air Shift Replaces 442GFAHXA3XD, MH6GB01XA1SE

    BESTfit Power Take-Off 6 Bolt Air Shift Replaces 442GFAHXA3XD, MH6GB01XA1SE

    BESTFIT TRUCK PARTS

    $1,333.99
    6 Bolt Air Shift Power Take-Off By BESTfit Replaces 442GFAHXA3XD, MH6GB01XA1SEBuilt for strength and reliability, the BESTfit 6 Bolt Air Shift Power Take-Off replaces OEM references 442GFAHXA3XD and...
    29-07050106
    SKU:
    29-07050106
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $1,333.99
    Qty in Cart: 0
    Price:
    $1,333.99
    Subtotal:
  • BESTfit Power Take-Off 8 Bolt Air Shift Replaces 489GUAHXA3XD

    BESTfit Power Take-Off 8 Bolt Air Shift Replaces 489GUAHXA3XD

    BESTFIT TRUCK PARTS

    $1,415.99
    8 Bolt Air Shift Power Take-Off By BESTfit Replaces 489GUAHXA3XDBuilt for strength and reliability, the BESTfit 8 Bolt Air Shift Power Take-Off replaces OEM reference 489GUAHXA3XD for Chelsea 489...
    29-07050116
    SKU:
    29-07050116
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $1,415.99
    Qty in Cart: 0
    Price:
    $1,415.99
    Subtotal:
  • BESTfit Power Take-Off 8 Bolt W/ 1 Inch Shaft Replaces 489XSAHXV3AF

    BESTfit Power Take-Off 8 Bolt W/ 1 Inch Shaft Replaces 489XSAHXV3AF

    BESTFIT TRUCK PARTS

    $1,443.99
    8 Bolt W/1 Inch Shaft Power Take-Off By BESTfit Replaces 489XSAHXV3AFBuilt for strength and reliability, the BESTfit 8 Bolt Power Take-Off with 1 inch shaft replaces OEM reference 489XSAHXV3AF for...
    29-07050119
    SKU:
    29-07050119
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $1,443.99
    Qty in Cart: 0
    Price:
    $1,443.99
    Subtotal:
  • BESTfit Power Take-Off W/ 7/8 Inch Shaft, Rotatable Output Flange Replaces 271MAAJPB5RB, 272MAAJPB3RB

    BESTfit Power Take-Off W/ 7/8 Inch Shaft, Rotatable Output Flange Replaces 271MAAJPB5RB, 272MAAJPB3RB

    BESTFIT TRUCK PARTS

    $3,350.99
    Power Take-Off W/ 7/8 Inch Shaft, Rotatable Output Flange By BESTfit Replaces 271MAAJPB5RB, 272MAAJPB3RBBuilt for strength and precision, the BESTfit 7/8 inch Shaft Power Take-Off with rotatable SAE...
    29-07050113
    SKU:
    29-07050113
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $3,350.99
    Qty in Cart: 0
    Price:
    $3,350.99
    Subtotal:
  • BESTfit Power Take-Off 8 Bolt W/O Install Kit Replaces 680XFAHXV3XD

    BESTfit Power Take-Off 8 Bolt W/O Install Kit Replaces 680XFAHXV3XD

    BESTFIT TRUCK PARTS

    $2,040.99
    8 Bolt Power Take-Off W/O Install Kit By BESTfit Replaces 680XFAHXV3XDBuilt for strength and dependable operation, the BESTfit 8 Bolt PTO Without Install Kit replaces OEM reference 680XFAHXV3XD for...
    29-07050102
    SKU:
    29-07050102
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $2,040.99
    Qty in Cart: 0
    Price:
    $2,040.99
    Subtotal:
  • BESTfit Power Take-Off 6 Bolt W/O Shaft Brake Replaces 270GAHVPB3XD, 272GAHVPB3XD

    BESTfit Power Take-Off 6 Bolt W/O Shaft Brake Replaces 270GAHVPB3XD, 272GAHVPB3XD

    BESTFIT TRUCK PARTS

    $3,058.99
    6 Bolt W/O Shaft Brake Power Take-Off By BESTfit Replaces 270GAHVPB3XD, 272GAHVPB3XDBuilt for strength and reliability, the BESTfit 6 Bolt PTO Without Shaft Brake replaces OEM references 270GAHVPB3XD...
    29-07050112
    SKU:
    29-07050112
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $3,058.99
    Qty in Cart: 0
    Price:
    $3,058.99
    Subtotal:
  • BESTfit Power Take-Off 6 Bolt 3 Assembly Arrangement Replaces 236XKAHXA3XD, 230XQAJXA3XD, 272XMAJXA3XD

    BESTfit Power Take-Off 6 Bolt 3 Assembly Arrangement Replaces 236XKAHXA3XD, 230XQAJXA3XD, 272XMAJXA3XD

    BESTFIT TRUCK PARTS

    $2,956.99
    6 Bolt 3 Assembly Arrangement Power Take-Off By BESTfit Replaces 236XKAHXA3XD, 230XQAJXA3XD, 272XMAJXA3XDBuilt for strength and precision, the BESTfit 6 Bolt 3 Assembly Power Take-Off replaces OEM...
    29-07050115
    SKU:
    29-07050115
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $2,956.99
    Qty in Cart: 0
    Price:
    $2,956.99
    Subtotal:
  • BESTfit Power Take-Off W/ 3 Assembly Arrangement Replaces 680GQAHXA3XD

    BESTfit Power Take-Off W/ 3 Assembly Arrangement Replaces 680GQAHXA3XD

    BESTFIT TRUCK PARTS

    $2,225.99
    Power Take-Off W/ 3 Assembly Arrangement By BESTfit Replaces 680GQAHXA3XDBuilt for strength and reliability, the BESTfit 3 Assembly Arrangement Power Take-Off replaces OEM reference 680GQAHXA3XD for...
    29-07050109
    SKU:
    29-07050109
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $2,225.99
    Qty in Cart: 0
    Price:
    $2,225.99
    Subtotal:
  • BESTfit Power Take-Off 8 Bolt W/ Metric Stud Kit Replaces 489GCAHXV3XD, MH8GA01XN1SE, TG8BU6805P1BX

    BESTfit Power Take-Off 8 Bolt W/ Metric Stud Kit Replaces 489GCAHXV3XD, MH8GA01XN1SE, TG8BU6805P1BX

    BESTFIT TRUCK PARTS

    $1,289.99
    8 Bolt W/ Metric Stud Kit Power Take-Off By BESTfit Replaces 489GCAHXV3XD, MH8GA01XN1SE, TG8BU6805P1BXBuilt for heavy-duty use, the BESTfit 8 Bolt Power Take-Off with Metric Stud Kit replaces OEM...
    29-07050098
    SKU:
    29-07050098
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $1,289.99
    Qty in Cart: 0
    Price:
    $1,289.99
    Subtotal:
  • BESTfit Power Take-Off 6 Bolt 12V Electric Over Hydraulic For Ford F-650, F-750 W/ 6.7L Engine

    BESTfit Power Take-Off 6 Bolt 12V Electric Over Hydraulic For Ford F-650, F-750 W/ 6.7L Engine

    BESTFIT TRUCK PARTS

    $3,336.99
    6 Bolt 12V Electric Over Hydraulic Power Take-Off By BESTfit Fits Ford F-650, F-750 W/ 6.7L EngineBuilt for heavy-duty performance, the BESTfit 12V Electric Over Hydraulic 6 Bolt PTO is designed...
    29-07050111
    SKU:
    29-07050111
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $3,336.99
    Qty in Cart: 0
    Price:
    $3,336.99
    Subtotal:
  • BESTfit Power Take-Off 8 Bolt Replaces 489GAAHXA5XD, TG8BU6804A3BX

    BESTfit Power Take-Off 8 Bolt Replaces 489GAAHXA5XD, TG8BU6804A3BX

    BESTFIT TRUCK PARTS

    $1,415.99
    8 Bolt Power Take-Off By BESTfit Replaces 489GAAHXA5XD, TG8BU6804A3BXBuilt for strength and dependable operation, the BESTfit 8 Bolt Power Take-Off replaces OEM reference 489GAAHXA5XD and...
    29-07050108
    SKU:
    29-07050108
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $1,415.99
    Qty in Cart: 0
    Price:
    $1,415.99
    Subtotal:
  • BESTfit Power Take-Off W/ Low Profile Mount Replaces 271GBHVPB5AF, 272NBHVPB5RF

    BESTfit Power Take-Off W/ Low Profile Mount Replaces 271GBHVPB5AF, 272NBHVPB5RF

    BESTFIT TRUCK PARTS

    $3,450.99
    Low Profile Mount Power Take-Off By BESTfit Replaces 271GBHVPB5AF, 272NBHVPB5RFBuilt for strength and reliability, the BESTfit Low Profile Power Take-Off replaces OEM references 271GBHVPB5AF and...
    29-07050105
    SKU:
    29-07050105
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $3,450.99
    Qty in Cart: 0
    Price:
    $3,450.99
    Subtotal:
  • BESTfit Power Take-Off Z Mounting Kit Replaces 328170-77XB, 32817077X

    BESTfit Power Take-Off Z Mounting Kit Replaces 328170-77XB, 32817077X

    BESTFIT TRUCK PARTS

    $23.99
    Power Take-Off Z Mounting Kit By BESTfit Replaces 328170-77XB, 32817077XUpgrade your PTO installation with the BESTfit Z Mounting Kit, a dependable replacement for 328170-77XB and 32817077X...
    29-07050094
    SKU:
    29-07050094
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $23.99
    Qty in Cart: 0
    Price:
    $23.99
    Subtotal:
  • BESTfit Power Take-Off 6 Bolt W/O Install Kit Replaces 442XFAHXV3XD

    BESTfit Power Take-Off 6 Bolt W/O Install Kit Replaces 442XFAHXV3XD

    BESTFIT TRUCK PARTS

    $1,188.99
    6 Bolt Power Take-Off W/O Install Kit By BESTfit Replaces 442XFAHXV3XDBuilt for strength and dependable operation, the BESTfit 6 Bolt PTO Without Install Kit replaces OEM reference 442XFAHXV3XD for...
    29-07050107
    SKU:
    29-07050107
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $1,188.99
    Qty in Cart: 0
    Price:
    $1,188.99
    Subtotal:
  • BESTfit Power Take-Off 6 Bolt W/ 7/8 Inch Shaft Replaces 230GKAJXA3XK, 272GDAJXA3RK

    BESTfit Power Take-Off 6 Bolt W/ 7/8 Inch Shaft Replaces 230GKAJXA3XK, 272GDAJXA3RK

    BESTFIT TRUCK PARTS

    $3,221.99
    6 Bolt W/ 7/8 Inch Shaft Power Take-Off By BESTfit Replaces 230GKAJXA3XK, 272GDAJXA3RKBuilt for strength and dependable performance, the BESTfit 6 Bolt Power Take-Off with 7/8 inch shaft replaces OEM...
    29-07050104
    SKU:
    29-07050104
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $3,221.99
    Qty in Cart: 0
    Price:
    $3,221.99
    Subtotal:
  • BESTfit Power Take-Off Geared Adapter Replaces 626XAHX3XX

    BESTfit Power Take-Off Geared Adapter Replaces 626XAHX3XX

    BESTFIT TRUCK PARTS

    $823.99
    Geared Adaptor Power Take-Off By BESTfit Replaces 626XAHX3XXBuilt for strength and precision, the BESTfit Geared Adapter Power Take-Off replaces OEM reference 626XAHX3XX for Chelsea 626 Series...
    29-07050101
    SKU:
    29-07050101
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $823.99
    Qty in Cart: 0
    Price:
    $823.99
    Subtotal:
  • BESTfit Power Take-Off 8 Bolt Super Torque Replaces 680XSAHXA5XD

    BESTfit Power Take-Off 8 Bolt Super Torque Replaces 680XSAHXA5XD

    BESTFIT TRUCK PARTS

    $2,165.99
    8 Bolt Super Torque Power Take-Off By BESTfit Replaces 680XSAHXA5XDBuilt for heavy-duty performance, the BESTfit 8 Bolt Super Torque Power Take-Off replaces OEM reference 680XSAHXA5XD for Chelsea 680...
    29-07050103
    SKU:
    29-07050103
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $2,165.99
    Qty in Cart: 0
    Price:
    $2,165.99
    Subtotal:
  • BESTfit Super Torque Power Take-Off W/ Out Air Shift Kit Replaces 680GRAHXV3XD

    BESTfit Super Torque Power Take-Off W/ Out Air Shift Kit Replaces 680GRAHXV3XD

    BESTFIT TRUCK PARTS

    $2,099.99
    Super Torque Power Take-Off W/ Out Air Shift Kit By BESTfit Replaces 680GRAHXV3XDUpgrade your drivetrain with the BESTfit Super Torque PTO without Air Shift Kit, designed to replace the 680GRAHXV3XD...
    29-07050090
    SKU:
    29-07050090
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $2,099.99
    Qty in Cart: 0
    Price:
    $2,099.99
    Subtotal:
  • BESTfit Power Take-Off 1 Inch Shaft Replaces 489XRAHXV3AF

    BESTfit Power Take-Off 1 Inch Shaft Replaces 489XRAHXV3AF

    BESTFIT TRUCK PARTS

    $1,355.99
    1 Inch Shaft Power Take-Off By BESTfit Replaces 489XRAHXV3AFBuilt for strength and dependable operation, the BESTfit 1 Inch Shaft Power Take-Off replaces OEM part number 489XRAHXV3AF for Chelsea 489...
    29-07050100
    SKU:
    29-07050100
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $1,355.99
    Qty in Cart: 0
    Price:
    $1,355.99
    Subtotal:
  • BESTfit Power Take-Off W/ 7/8 Inch Shaft, Replaces 442XFAHXA3XK, MH6SB01XA1RA

    BESTfit Power Take-Off W/ 7/8 Inch Shaft, Replaces 442XFAHXA3XK, MH6SB01XA1RA

    BESTFIT TRUCK PARTS

    $1,479.99
    7/8 Inch Shaft Power Take-Off By BESTfit Replaces 442XFAHXA3XK, MH6SB01XA1RABuilt for strength and reliability, the BESTfit PTO with 7/8 inch 13-tooth spline shaft replaces part numbers 442XFAHXA3XK...
    29-07050097
    SKU:
    29-07050097
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $1,479.99
    Qty in Cart: 0
    Price:
    $1,479.99
    Subtotal:
  • Total: items /

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).


Introducing the Official 4 State Trucks Mobile App – Gear Up On the Go!