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Kenworth T660 Elbows, Piping & Comp.

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  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • BESTfit 5 X 14.5 Inch Bead Flex Connector W/ Flange Replaces M6665420335 For Kenworth & Peterbilt

    BESTfit 5 X 14.5 Inch Bead Flex Connector W/ Flange Replaces M6665420335 For Kenworth & Peterbilt

    BESTFIT TRUCK PARTS

    $324.99
    BESTfit Stainless Steel 14.5 Inch Long DPF Flex Connector PipeRevitalize your truck's exhaust system with the BESTfit 5 Inch X 14.5 Inch Bead Flex Connector, specifically designed to replace OE...
    29-080406
    SKU:
    29-080406
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Make:
    Kenworth
    Make:
    Peterbilt
    Length Options:
    14 1/2 Inch
    Diameter Options:
    5 Inch
    Product Type:
    Exhaust
    $324.99
    Qty in Cart: 0
    Price:
    $324.99
    Subtotal:
  • FREE SHIPPING OVER $249
    BESTfit 5 X 11.375 Inch Bead Flex Connector W/ Flange Replaces M6665420320 For Kenworth & Peterbilt

    BESTfit 5 X 11.375 Inch Bead Flex Connector W/ Flange Replaces M6665420320 For Kenworth & Peterbilt

    BESTFIT TRUCK PARTS

    $245.99
    SS DPF Bead Flex Connector Pipe* High Quality Flex Connector* 5 Inch Flange x 5 Inch Flange x 11.375 Inch Compressed* Sold Individually* Made In USA* Warranty On Flex Connector Against Defects In...
    29-080405
    SKU:
    29-080405
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Make:
    Peterbilt
    Make:
    Kenworth
    Diameter Options:
    5 Inch
    Product Type:
    Exhaust
    $245.99
    Qty in Cart: 0
    Price:
    $245.99
    Subtotal:
  • FREE SHIPPING
    BESTfit 4 X 14.25 Inch Flex Connector Replaces M66-65410-405, M66-7091-0405 For Kenworth & Peterbilt

    BESTfit 4 X 14.25 Inch Flex Connector Replaces M66-65410-405, M66-7091-0405 For Kenworth & Peterbilt

    BESTFIT TRUCK PARTS

    $289.99
    BESTfit Stainless Steel 14.25 Inch Long DPF Flex Connector W/ 4 Inch Flange* High Quality Exhaust Connector* 4 Inch Flange x 4 Inch Flange x 14.250 Inch Compressed* Sold Individually* Made In USA*...
    29-080404
    SKU:
    29-080404
    Truck Class:
    Heavy Duty
    Diameter Options:
    4 Inch
    Length Options:
    14 1/2 Inch
    Material Options:
    Steel
    Make:
    Kenworth
    Make:
    Peterbilt
    Finish Options:
    Chrome-Plated
    Product Type:
    Exhaust
    $289.99
    Qty in Cart: 0
    Price:
    $289.99
    Subtotal:
  • FREE SHIPPING
    BESTfit 4 X 12.25 Inch Flex Connector W/ Flange Replaces M6665410335, M6670910335 For Kenworth & Peterbilt

    BESTfit 4 X 12.25 Inch Flex Connector W/ Flange Replaces M6665410335, M6670910335 For Kenworth & Peterbilt

    BESTFIT TRUCK PARTS

    $305.99
    BESTfit Stainless Steel 12.25 Inch Long DPF Flex Connector W/ 4 Inch Flange* High Quality Flex Connector* Made Of Stainless Steel* 4 Inch Flange x 4 Inch Flange x 12.250 Inch Compressed* Sold...
    29-080403
    SKU:
    29-080403
    Truck Class:
    Heavy Duty
    Diameter Options:
    4 Inch
    Length Options:
    12 1/4 Inch
    Material Options:
    Steel
    Make:
    Peterbilt
    Make:
    Kenworth
    Finish Options:
    Chrome-Plated
    Product Type:
    Exhaust
    $305.99
    Qty in Cart: 0
    Price:
    $305.99
    Subtotal:
  • FREE SHIPPING OVER $249
    BESTfit 4 X 11.375 Inch Flex Connector Replaces M66-6541-0320 For Kenworth & Peterbilt

    BESTfit 4 X 11.375 Inch Flex Connector Replaces M66-6541-0320 For Kenworth & Peterbilt

    BESTFIT TRUCK PARTS

    $237.99
    BESTfit DPF Exhaust Flex Connector PipeBESTfit's 4 X 11.375 Inch Flex Connector is the top choice for replacing OE numbers M66-6541-0320 and M66-7091-0320, fitting a wide range of Kenworth and...
    29-080402
    SKU:
    29-080402
    Diameter Options:
    4 Inch
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Kenworth
    Make:
    Peterbilt
    Product Type:
    Exhaust
    $237.99
    Qty in Cart: 0
    Price:
    $237.99
    Subtotal:
  • Exhaust Bellows Kit Replaces 67PAC65420320. KW-6542-0320. KW65420320. M6665420320. M66-6542-0320 For Peterbilt & Kenworth

    Exhaust Bellows Kit Replaces 67PAC65420320. KW-6542-0320. KW65420320. M6665420320. M66-6542-0320 For Peterbilt & Kenworth

    AFTERMARKET

    $434.99
    Exhaust Bellows Kit W/ Clamp & GasketUpgrade your truck with the Exhaust Bellows Kit, designed for a wide range of Peterbilt and Kenworth models. This comprehensive kit includes two high-grade V-Band...
    29-08040005
    SKU:
    29-08040005
    Truck Class:
    Heavy Duty
    Make:
    Peterbilt
    Make:
    Kenworth
    Style Options:
    Cummins
    Material Options:
    Steel
    Product Type:
    Exhaust
    $434.99
    Qty in Cart: 0
    Price:
    $434.99
    Subtotal:
  • Exhaust Bellows Kit W/ 561.29475 V-Band Clamps, 562.U856636 Gaskets For Peterbilt & Kenworth

    Exhaust Bellows Kit W/ 561.29475 V-Band Clamps, 562.U856636 Gaskets For Peterbilt & Kenworth

    AFTERMARKET

    $498.99
    Exhaust Bellows Kit W/ Clamp & GasketThis Exhaust Bellows Kit comes complete with two precision-engineered V-Band clamps and two DPF Gasket Cummins, offering an optimal fit for a wide range of...
    29-08040004
    SKU:
    29-08040004
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Make:
    Peterbilt
    Style Options:
    Cummins
    Material Options:
    Steel
    Product Type:
    Exhaust
    $498.99
    Qty in Cart: 0
    Price:
    $498.99
    Subtotal:
  • Exhaust Bellows Kit W/ 561.29318 V-Band Clamps & 562.U46245 Gaskets For Peterbilt & Kenworth

    Exhaust Bellows Kit W/ 561.29318 V-Band Clamps & 562.U46245 Gaskets For Peterbilt & Kenworth

    AFTERMARKET

    $315.99
    Exhaust Bellows Kit W/ Clamp & Gasket* High Quality Exhaust Bellows* Made Of 3 Layers Of 304 Stainless Steel* 409 Stainless Steel Welded End Fittings* With Vibration Dampening Weave* Leak Proof...
    29-08040003
    SKU:
    29-08040003
    Truck Class:
    Heavy Duty
    Make:
    Peterbilt
    Make:
    Kenworth
    Material Options:
    Steel
    Product Type:
    Exhaust
    Ready To Ship:
    Yes
    $315.99
    Qty in Cart: 0
    Price:
    $315.99
    Subtotal:
  • Exhaust Bellows Kit W/ Gaskets & Hardware For Peterbilt & Kenworth W/ MX13 2016-2017

    Exhaust Bellows Kit W/ Gaskets & Hardware For Peterbilt & Kenworth W/ MX13 2016-2017

    AFTERMARKET

    $541.99
    Premium Exhaust BellowsTargeted for a range of Peterbilt and Kenworth models, the Exhaust Bellows Kit is the ultimate solution for drivers looking to enhance their exhaust's reliability. This...
    29-08040002
    SKU:
    29-08040002
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Make:
    Peterbilt
    Material Options:
    Steel
    Style Options:
    Cummins
    Product Type:
    Exhaust
    $541.99
    Qty in Cart: 0
    Price:
    $541.99
    Subtotal:
  • Exhaust Bellows Kit W/ Gaskets & Hardware For Peterbilt & Kenworth

    Exhaust Bellows Kit W/ Gaskets & Hardware For Peterbilt & Kenworth

    AFTERMARKET

    $420.99
    Exhaust Bellows KitDesigned for Peterbilt and Kenworth trucks, the Exhaust Bellows Kit is the ultimate solution for improving exhaust integrity and performance. This kit includes everything you need...
    29-08040001
    SKU:
    29-08040001
    Truck Class:
    Heavy Duty
    Make:
    Peterbilt
    Make:
    Kenworth
    Material Options:
    Steel
    Style Options:
    Cummins
    Product Type:
    Exhaust
    $420.99
    Qty in Cart: 0
    Price:
    $420.99
    Subtotal:
  • EGR Inlet Tube Bellows Kit IHC W/ Gaskets & Hardware For Kenworth & Peterbilt W/ MX13 2016-2017

    EGR Inlet Tube Bellows Kit IHC W/ Gaskets & Hardware For Kenworth & Peterbilt W/ MX13 2016-2017

    AFTERMARKET

    $468.99
    Premium Exhaust Bellows* High Quality Exhaust Bellows* Includes   - (2) V- Band Clamp  - (2) Gasket Cummins* Sold Individually* Warranty On Exhaust Bellows Against Defects In Workmanship & Material...
    29-08040000
    SKU:
    29-08040000
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Make:
    Peterbilt
    Material Options:
    Steel
    Style Options:
    Cummins
    Product Type:
    Exhaust
    $468.99
    Qty in Cart: 0
    Price:
    $468.99
    Subtotal:
  • Premium Exhaust Bellows Kit For Autocar

    Premium Exhaust Bellows Kit For Autocar

    AFTERMARKET

    $490.99
    Exhaust Bellows Kit Autocar Premium W/ V Band Clamp & Cummins Gasket* High Quality Exhaust Bellows Kit* Includes: - (2) V- Band Clamp  - Gasket Cummins * Made Of 304 Stainless Steel* Sold...
    16-08040001
    SKU:
    16-08040001
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Material Options:
    Stainless Steel
    Style Options:
    Cummins
    Product Type:
    Exhaust
    $490.99
    Qty in Cart: 0
    Price:
    $490.99
    Subtotal:
  • Exhaust Bellows Kit Replaces A2350781-001 For Autocar

    Exhaust Bellows Kit Replaces A2350781-001 For Autocar

    AFTERMARKET

    $599.99
    Exhaust Bellows Kit Autocar Premium* High Quality Exhaust Bellows Kit* Includes:  - (2) V-Band Clamp  - (2) Exhaust Gasket* Sold Individually* Warranty On Exhaust Bellows Kits Against Defects In...
    16-08040000
    SKU:
    16-08040000
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Material Options:
    Steel
    Product Type:
    Exhaust
    $599.99
    Qty in Cart: 0
    Price:
    $599.99
    Subtotal:
  • 5 Inch Aluminized Steel Double Bend Pipe W/ 5 Inch Inlet For 5, 6, 7 Inch Stack Kits by BESTfit

    5 Inch Aluminized Steel Double Bend Pipe W/ 5 Inch Inlet For 5, 6, 7 Inch Stack Kits by BESTfit

    BESTFIT TRUCK PARTS

    $353.99
    BESTfit 5 Inch 16G Aluminized Steel Double Bend Pipe For 5, 6, 7 Inch Stack Kits W/ 5 Inch Inlet* High Quality Stack* 16 Gauge Aluminized Steel* Dimensions  - 5 Inch Diameter  - 5 Inch Inlet...
    09-08G500008
    SKU:
    09-08G500008
    Diameter Options:
    5 Inch
    Material Options:
    Aluminized Steel
    Make:
    Universal Items
    Truck Class:
    Heavy Duty
    Product Type:
    Exhaust
    $353.99
    Qty in Cart: 0
    Price:
    $353.99
    Subtotal:
  • 5 Inch 16G Aluminized Steel Double Bend Pipe For 5, 6, 7 Inch Stack Kits by BESTfit

    5 Inch 16G Aluminized Steel Double Bend Pipe For 5, 6, 7 Inch Stack Kits by BESTfit

    BESTFIT TRUCK PARTS

    $301.99
    BESTfit 5 Inch 16G Aluminized Steel Double Bend Pipe For 5, 6, 7 Inch Stack Kits* High Quality Double Bend Pipe* 16 Gauge Aluminized Steel* Dimensions  - 5 Inch Diameter* Used In 5, 6 And 7 Inch...
    09-08G500007
    SKU:
    09-08G500007
    Diameter Options:
    5 Inch
    Material Options:
    Aluminized Steel
    Make:
    Universal Items
    Truck Class:
    Heavy Duty
    Product Type:
    Exhaust
    $301.99
    Qty in Cart: 0
    Price:
    $301.99
    Subtotal:
  • 4 Inch 16G Aluminized Steel Double Bend Pipe by BESTfit

    4 Inch 16G Aluminized Steel Double Bend Pipe by BESTfit

    BESTFIT TRUCK PARTS

    $257.99
    BESTfit 16G Aluminized Steel Double Bend Pipe For 4 Inch Stack Kits* High Quality Stack Kit* 16 Gauge Aluminized Steel* Dimensions  - 4 Inch Double Bend Pipe  - 4 Inch Stack kit* Made in The USA*...
    09-08G400004
    SKU:
    09-08G400004
    Diameter Options:
    4 Inch
    Material Options:
    Aluminized Steel
    Make:
    Universal Items
    Truck Class:
    Heavy Duty
    Product Type:
    Exhaust
    $257.99
    Qty in Cart: 0
    Price:
    $257.99
    Subtotal:
  • FREE SHIPPING
    5 Inch Chrome-Plated Stainless Steel Y Pipe

    5 Inch Chrome-Plated Stainless Steel Y Pipe

    LINCOLN CHROME

    $251.99
    Lincoln Chrome Y Pipe 5 Inch Chrome Plated Stainless SteelRevitalize your exhaust system with the Lincoln Chrome 5 Inch Y Pipe, a premium exhaust component designed to deliver both style and...
    09-0806510
    SKU:
    09-0806510
    Diameter Options:
    5 Inch
    Location:
    Made In USA
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Style Options:
    Y-Pipe
    Truck Class:
    Heavy Duty
    Product Type:
    Exhaust
    Ready To Ship:
    Yes
    $251.99
    Qty in Cart: 0
    Price:
    $251.99
    Subtotal:
  • FREE SHIPPING OVER $249
    BESTfit 5 Inch ID/OD Steel Universal Exhaust Y-Pipe 9 Inch L X 18 Inch W

    BESTfit 5 Inch ID/OD Steel Universal Exhaust Y-Pipe 9 Inch L X 18 Inch W

    BESTFIT TRUCK PARTS

    $156.99
    BESTfit Exhaust Y-PipeMaximize your exhaust system with the BESTfit 5 Inch Diameter Steel Universal Exhaust Y-Pipe from 4 State Trucks. Constructed from premium steel, this Y-pipe features a 5-inch...
    09-0806505
    SKU:
    09-0806505
    Diameter Options:
    5 Inch
    Length Options:
    9 Inch
    Material Options:
    Steel
    Make:
    Universal Items
    Style Options:
    Y-Pipe
    Truck Class:
    Heavy Duty
    Product Type:
    Exhaust
    Width Options:
    18 Inch
    Ready To Ship:
    Yes
    $156.99
    Qty in Cart: 0
    Price:
    $156.99
    Subtotal:
  • FREE SHIPPING OVER $249
    BESTfit 5 Inch OD/OD Steel Universal Exhaust Y-Pipe 15 Inch L X 30 Inch W

    BESTfit 5 Inch OD/OD Steel Universal Exhaust Y-Pipe 15 Inch L X 30 Inch W

    BESTFIT TRUCK PARTS

    $177.99
    BESTfit Steel Exhaust Y-PipeUpgrade your exhaust system with the BESTfit 5 Inch Diameter Steel Universal Exhaust Y-Pipe, designed for exceptional performance and durability. This aluminized steel...
    09-0806504
    SKU:
    09-0806504
    Diameter Options:
    5 Inch
    Material Options:
    Steel
    Make:
    Universal Items
    Length Options:
    15 Inch
    Truck Class:
    Heavy Duty
    Product Type:
    Exhaust
    Ready To Ship:
    Yes
    $177.99
    Qty in Cart: 0
    Price:
    $177.99
    Subtotal:
  • FREE SHIPPING
    BESTfit 5 Inch OD Chrome Universal Exhaust Y-Pipe 9 Inch L X 18 Inch W

    BESTfit 5 Inch OD Chrome Universal Exhaust Y-Pipe 9 Inch L X 18 Inch W

    BESTFIT TRUCK PARTS

    $289.99
    BESTfit Universal 5 Inch O.D. Exhaust Y-PipeUpgrade your exhaust setup with the BESTfit 5 Inch Diameter Chrome Universal Exhaust Y-Pipe, designed to deliver superior performance and style. Crafted...
    09-0806503
    SKU:
    09-0806503
    Diameter Options:
    5 Inch
    Length Options:
    9 Inch
    Material Options:
    Steel
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Style Options:
    Y-Pipe
    Truck Class:
    Heavy Duty
    Product Type:
    Exhaust
    Ready To Ship:
    Yes
    $289.99
    Qty in Cart: 0
    Price:
    $289.99
    Subtotal:
  • Total: items /

Adding your products to cart

The Kenworth T660 Elbows, Piping & Comp. product lineup offers a comprehensive selection of high-quality exhaust components for Kenworth semi-trucks. This includes a wide variety of elbows, pipes, and other essential parts to keep your Kenworth's exhaust system running smoothly and efficiently. The product lineup features top brands like BESTfit, Lincoln Chrome, and Aluminized Steel, ensuring durable and long-lasting performance. Products range from 90-degree elbows and Y-pipes to flex connectors and straight tubing, catering to all your Kenworth exhaust needs. With options for chrome, aluminized, and stainless steel finishes, you can find the perfect components to complement your truck's style and appearance. Whether you're looking to upgrade, repair, or replace your Kenworth's exhaust system, this product lineup has you covered. The variety of makes and models supported, including the popular Kenworth T800, W900B, and W900L, ensures you can find the right fit for your semi. With a focus on quality and easy installation, these Kenworth exhaust parts will help keep your rig running strong on the road.

Frequently Asked Questions About Kenworth T660 Elbows, Piping & Comp.

What kinds of parts are included in this category?

This category covers the exhaust system components for the Kenworth T660, including exhaust elbows, piping sections, and related fittings that connect the muffler, stacks, and aftertreatment components. These parts are used to route and support exhaust flow from the engine or turbo up through the stack assembly.

How do I know if a piping or elbow component will fit my T660?

Fit depends on the diameter, angle, and length of the elbow or pipe section, as well as the specific exhaust configuration on your truck, such as single or dual stacks and engine setup. Always compare the measurements and part specifications listed on the product page to the components currently on your truck, or check with our parts team if you are unsure before ordering.

What materials are these elbows and pipes made from, and how do they hold up?

Exhaust elbows and piping are typically made from aluminized or stainless steel to withstand high exhaust temperatures and resist corrosion over time. Stainless steel options generally offer better long-term rust resistance, while aluminized steel provides a more budget-friendly choice for standard use.

Can I install these parts myself, or do I need a professional?

Many drivers and shop technicians are able to replace elbows and straight piping sections with basic tools, especially when the new part matches the original diameter and clamp style. However, if the installation involves cutting, welding, or working near turbo or aftertreatment connections, it is best handled by a qualified diesel technician to ensure a proper seal and fit.

Will replacing an exhaust elbow or pipe affect emissions compliance?

Components installed ahead of the DPF, DOC, or other aftertreatment devices can affect emissions performance if they alter exhaust flow or introduce leaks. To stay compliant, use replacement parts that match the original dimensions and routing, and avoid modifying factory aftertreatment configurations.


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