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Peterbilt 386 Elbows, Piping & Comp.

Shop for replacement Peterbilt 386 exhaust elbows, pipes, and related hardware components. We stock a large selection of aftermarket parts to help upgrade your exhaust system.
  • Product
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  • Quantity
  • Price
  • Subtotal
  • Aluminized Steel Flared Exhaust Adapter- 5 ID X 3 Inch Replaces TRF-588 For Caterpillar 3406 & C15 Engine

    Aluminized Steel Flared Exhaust Adapter- 5 ID X 3 Inch Replaces TRF-588 For Caterpillar 3406 & C15 Engine

    AFTERMARKET

    $47.23
    5 ID X 3 Inch Flanged Exhaust Adapter Replaces TRF-588, TRF588, 90854A, 90569A, 41875, 41689Ensure efficient exhaust performance on your Caterpillar 3406 or C15 with this Aluminized Steel Flared...
    29-08030001
    SKU:
    29-08030001
    Diameter Options:
    5 Inch
    Length Options:
    3 Inch
    Truck Class:
    Heavy Duty
    Material Options:
    Aluminized Steel
    Product Type:
    Exhaust
    $47.23
    Qty in Cart: 0
    Price:
    $47.23
    Subtotal:
  • Aluminized Steel Flared Exhaust Adapter 5.72 OD X 6.25 Inch - 41689 For Cummins 855CI W/T50 Turbo

    Aluminized Steel Flared Exhaust Adapter 5.72 OD X 6.25 Inch - 41689 For Cummins 855CI W/T50 Turbo

    AUTOMANN USA

    $27.14
    Flanged Exhaust Adapter Replaces 41689Optimize your Cummins 855CI engine's exhaust system with the Aluminized Steel Flared Exhaust Adapter. This exhaust adapter is crafted from durable aluminized...
    29-08030000
    SKU:
    29-08030000
    Material Options:
    Steel
    Length Options:
    6 1/4 Inch
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Exhaust
    $27.14
    Qty in Cart: 0
    Price:
    $27.14
    Subtotal:
  • 5 OD X 6 Inch Aluminized Steel Flared Exhaust Adapter Replaces T5886 For Caterpillar 3406, C15

    5 OD X 6 Inch Aluminized Steel Flared Exhaust Adapter Replaces T5886 For Caterpillar 3406, C15

    AUTOMANN USA

    $29.73
    5 OD X 6 Inch Flared Exhaust Pipe Adapter Replaces T5886, T588-6, 41655, P206615The Aluminized Steel Flared Exhaust Adapter is an ideal solution for replacing OE part numbers T5886, T588-6, 41655,...
    29-08030002
    SKU:
    29-08030002
    Material Options:
    Aluminized Steel
    Length Options:
    6 Inch
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Exhaust
    $29.73
    Qty in Cart: 0
    Price:
    $29.73
    Subtotal:
  • BESTfit 5 ID X 51 Inch Aluminized Straight Muffler Eliminator Pipe - Center Spool

    BESTfit 5 ID X 51 Inch Aluminized Straight Muffler Eliminator Pipe - Center Spool

    BESTFIT TRUCK PARTS

    $148.99
    5 ID x 51 Inch Muffler EliminatorMaximize your truck's performance with the BESTfit Aluminized 5 ID X 51 Inch. Straight Muffler Eliminator Pipe from 4 State Trucks. This premium muffler eliminator is...
    09-08250517
    SKU:
    09-08250517
    Material Options:
    Aluminized Steel
    Diameter Options:
    5 Inch
    Make:
    Universal Items
    Truck Class:
    Heavy Duty
    Product Type:
    Exhaust
    Ready To Ship:
    Yes
    $148.99
    Qty in Cart: 0
    Price:
    $148.99
    Subtotal:
  • Aluminized Exhaust Pipe, 6 Inch OD x 60 Inch

    Aluminized Exhaust Pipe, 6 Inch OD x 60 Inch

    BESTFIT TRUCK PARTS

    $163.99
    60 Inch Exhaust Pipe With 6 Inch ODDiscover the perfect addition to your exhaust system with the 60 Inch Aluminized Exhaust Pipe, boasting a 6 Inch OD. Made from aluminized material, it not only...
    09-086000001
    SKU:
    09-086000001
    Truck Class:
    Heavy Duty
    Diameter Options:
    6 Inch
    Make:
    Universal Items
    Product Type:
    Exhaust
    Material Options:
    Aluminized Steel
    $163.99
    Qty in Cart: 0
    Price:
    $163.99
    Subtotal:
  • Aluminized Pipe, 8 Inch OD x 60 Inch

    Aluminized Pipe, 8 Inch OD x 60 Inch

    BESTFIT TRUCK PARTS

    $605.99
    8 Inch OD Aluminized Pipe, 5 Foot LengthDiscover the durability and performance enhancement offered by the 8 Inch OD Aluminized Pipe, a perfect addition to your exhaust. This high-quality, 5-foot...
    09-088060010
    SKU:
    09-088060010
    Diameter Options:
    8 Inch
    Truck Class:
    Heavy Duty
    Material Options:
    Aluminized Steel
    Make:
    Universal Items
    Product Type:
    Exhaust
    $605.99
    Qty in Cart: 0
    Price:
    $605.99
    Subtotal:
  • 7 OD To 5 ID 90 Degree Chrome Exhaust Elbow

    7 OD To 5 ID 90 Degree Chrome Exhaust Elbow

    BESTFIT TRUCK PARTS

    $680.99
    16 Inch End To End 90 Degree Chrome ElbowDiscover the perfect combination of durability and style with our Chrome 90 Degree Exhaust Elbow. This elbow is meticulously crafted from 16 gauge material,...
    09-0801756
    SKU:
    09-0801756
    Diameter Options:
    5 Inch
    Material Options:
    Steel
    Finish Options:
    Chrome-Plated
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Exhaust
    Ready To Ship:
    Yes
    $680.99
    Qty in Cart: 0
    Price:
    $680.99
    Subtotal:
  • BESTfit Aluminized Steel Universal Type C Y-Pipe

    BESTfit Aluminized Steel Universal Type C Y-Pipe

    BESTFIT TRUCK PARTS

    $185.99 - $228.99
    Choose Option(s) to see description.BESTfit 4 X 12 X 9.5 Inch Aluminized Steel Universal Type C Y-PipeAluminized Steel Type C Universal Y-Pipe* High Quality Y Pipe* Aluminized Steel* Y Shaped*...
    PPR_206275
    SKU:
    PPR_206275
    Truck Class:
    Universal
    Make:
    Universal Items
    Height Options:
    10 Inch
    Material Options:
    Aluminized Steel
    Diameter Options:
    3 Inch
    Truck Class:
    Heavy Duty
    Length Options:
    10 Inch
    Product Type:
    Exhaust
    $185.99 - $228.99
    Qty in Cart: 0
    Price:
    $185.99 - $228.99
    Subtotal:
  • Chrome Plated Steel 45 Degree Exhaust Expanded Elbow

    Chrome Plated Steel 45 Degree Exhaust Expanded Elbow

    UNITED PACIFIC

    $116.99
    Choose Option(s) to see description.Chrome Plated Steel 45 Degree Exhaust Expanded Elbow, 5 Inch ID To 5 Inch OD5 Inch ID To OD Chrome Exhaust Elbow, 12 x 12 Inch* High Quality Exhaust Expanded...
    PPR_205783
    SKU:
    PPR_205783
    Truck Class:
    Universal
    Material Options:
    Steel
    Degree Options:
    45
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Truck Class:
    Heavy Duty
    Product Type:
    Exhaust
    $116.99
    Qty in Cart: 0
    Price:
    $116.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Reducer W/ Finish And Connection Size Options

    Reducer W/ Finish And Connection Size Options

    UNITED PACIFIC

    $26.78 - $62.99
    Choose Option(s) to see description.6 To 5 Inch ID/ID Aluminized Exhaust Reducer6 To 5 Inch ID Pipe Reducer - Rust ResistantConnect 6 inch inside diameter exhaust pipe to 5 inch inside diameter...
    PPR_205785
    SKU:
    PPR_205785
    Truck Class:
    Universal
    Material Options:
    Aluminized Steel
    Make:
    Universal Items
    Finish Options:
    Paintable
    Truck Class:
    Heavy Duty
    Product Type:
    Exhaust
    Ready To Ship:
    Yes
    $26.78 - $62.99
    Qty in Cart: 0
    Price:
    $26.78 - $62.99
    Subtotal:
  • Chrome 90 Degree Exhaust Expanded Elbow

    Chrome 90 Degree Exhaust Expanded Elbow

    UNITED PACIFIC

    $116.99 - $185.99
    Choose Option(s) to see description.Chrome 90 Degree Exhaust Expanded Elbow 5 Inch ID To 5 Inch OD - 18 X 18 Inch18 x 18 Inch 90 Degree Exhaust Expanded Elbow* High Quality Exhaust Elbow*...
    PPR_205784
    SKU:
    PPR_205784
    Truck Class:
    Universal
    Material Options:
    Steel
    Degree Options:
    90
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Diameter Options:
    5 Inch
    Style Options:
    Elbow
    Diameter Options:
    6 Inch
    Truck Class:
    Heavy Duty
    Product Type:
    Exhaust
    $116.99 - $185.99
    Qty in Cart: 0
    Price:
    $116.99 - $185.99
    Subtotal:
  • Chrome Straight Center Spool With 8 Inch Diameter & Length Options

    Chrome Straight Center Spool With 8 Inch Diameter & Length Options

    UNITED PACIFIC

    $538.99 - $717.99
    Choose Option(s) to see description.Chrome 8 X 55 Inch Straight Center Spool8 Inch Straight Center Spool* High Quality Center Spool* Steel* 8 Inch* Triple Chrome Plating Finish* Sold Individually*...
    PPR_205786
    SKU:
    PPR_205786
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Height Options:
    8 Inch
    Finish Options:
    Chrome-Plated
    Diameter Options:
    8 Inch
    Truck Class:
    Heavy Duty
    Product Type:
    Exhaust
    Ready To Ship:
    Yes
    $538.99 - $717.99
    Qty in Cart: 0
    Price:
    $538.99 - $717.99
    Subtotal:
  • Aluminized 5 Inch Y Exhaust Pipe

    Aluminized 5 Inch Y Exhaust Pipe

    UNITED PACIFIC

    $141.99 - $158.99
    Choose Option(s) to see description.Aluminized 5 Inch Y Pipe - 16 In W X 11 In HAluminized 5 Inch Y Exhaust Pipe* High Quality Y Pipe* Aluminized Steel* 16 Inch W X 11 Inch L* Sold Individually*...
    PPR_205354
    SKU:
    PPR_205354
    Truck Class:
    Universal
    Material Options:
    Aluminized Steel
    Make:
    Universal Items
    Height Options:
    5 Inch
    Finish Options:
    Paintable
    Diameter Options:
    5 Inch
    Truck Class:
    Heavy Duty
    Product Type:
    Exhaust
    $141.99 - $158.99
    Qty in Cart: 0
    Price:
    $141.99 - $158.99
    Subtotal:
  • Chrome 90 Degree Exhaust Elbow 35 X 24 Inch

    Chrome 90 Degree Exhaust Elbow 35 X 24 Inch

    UNITED PACIFIC

    $451.99 - $454.99
    Choose Option(s) to see description.Chrome 90 Degree Exhaust Elbow, Reduce 6 OD To 5 OD., 35 X 24 Inch35 X 24 Inch Chrome 90 Degree Exhaust Elbow* High Quality Exhaust Elbow* Chrome-Plated* 6 Inch O...
    PPR_205326
    SKU:
    PPR_205326
    Truck Class:
    Universal
    Material Options:
    Steel
    Degree Options:
    90
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Style Options:
    Elbow
    Diameter Options:
    6 Inch
    Diameter Options:
    7 Inch
    Truck Class:
    Heavy Duty
    Product Type:
    Exhaust
    $451.99 - $454.99
    Qty in Cart: 0
    Price:
    $451.99 - $454.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Chrome Exhaust Connector

    Chrome Exhaust Connector

    UNITED PACIFIC

    $39.05 - $54.99
    Choose Option(s) to see description.Chrome Exhaust Connector 5 Inch I.D. To 5 Inch I.D.Chrome Plated Exhaust Connector* High Quality Exhaust Connector* Chrome-Plated* 5 Inch I.D. To 5 Inch I.D.* With...
    PPR_205277
    SKU:
    PPR_205277
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Truck Class:
    Heavy Duty
    Product Type:
    Exhaust
    Ready To Ship:
    Yes
    $39.05 - $54.99
    Qty in Cart: 0
    Price:
    $39.05 - $54.99
    Subtotal:
  • Chrome 6 Inch Straight Center Spool

    Chrome 6 Inch Straight Center Spool

    UNITED PACIFIC

    $231.99
    Choose Option(s) to see description.Chrome 6 X 55 Inch Straight Center Spool55 Inch Long Straight Center Spool* High Quality Center Spool* Steel* 6 Inch* Triple Chrome Plating Finish* Sold...
    PPR_205343
    SKU:
    PPR_205343
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Height Options:
    6 Inch
    Finish Options:
    Chrome-Plated
    Diameter Options:
    6 Inch
    Truck Class:
    Heavy Duty
    Product Type:
    Exhaust
    $231.99
    Qty in Cart: 0
    Price:
    $231.99
    Subtotal:
  • Chrome 90 Degree Exhaust Elbow, Reduce 7 OD To 5 OD Inch

    Chrome 90 Degree Exhaust Elbow, Reduce 7 OD To 5 OD Inch

    UNITED PACIFIC

    $223.99 - $366.99
    Choose Option(s) to see description.Chrome 90 Degree Exhaust Elbow, Reduce 6 OD To 5 OD, 13 X 13 Inch13 X 13 Inch Chrome 90 Degree Exhaust Elbow* High Quality Exhaust Elbow* Chrome-Plated* 6 Inch O.D...
    PPR_205327
    SKU:
    PPR_205327
    Truck Class:
    Universal
    Material Options:
    Steel
    Degree Options:
    90
    Make:
    Universal Items
    Height Options:
    5 Inch
    Finish Options:
    Chrome-Plated
    Diameter Options:
    6 Inch
    Diameter Options:
    7 Inch
    Style Options:
    Elbow
    Truck Class:
    Heavy Duty
    Product Type:
    Exhaust
    $223.99 - $366.99
    Qty in Cart: 0
    Price:
    $223.99 - $366.99
    Subtotal:
  • Chrome Steel 7 Inch Straight Center Spool

    Chrome Steel 7 Inch Straight Center Spool

    UNITED PACIFIC

    $460.99 - $484.99
    Choose Option(s) to see description.Chrome Steel 7 X 52 Inch Straight Center Spool52 Inch Long Straight Center Spool* High Quality Center Spool* Steel* 7 Inch* Triple Chrome Plating Finish* Sold...
    PPR_205344
    SKU:
    PPR_205344
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Height Options:
    7 Inch
    Diameter Options:
    7 Inch
    Truck Class:
    Heavy Duty
    Product Type:
    Exhaust
    $460.99 - $484.99
    Qty in Cart: 0
    Price:
    $460.99 - $484.99
    Subtotal:
  • On Sale
    Limited Quantity Available
    FREE SHIPPING OVER $249
    Exhaust Elbow Connector Sleeve Insert

    Exhaust Elbow Connector Sleeve Insert

    UNITED PACIFIC

    $17.42 - $45.94
    Choose Option(s) to see description.Exhaust Elbow Connector Sleeve Insert - 5 O.D. To 5 O.D. Inch5 Inch OD Exhaust Elbow Connector Sleeve Insert* High Quality Exhaust Elbow Connector* 5 Inch O.D. To...
    PPR_205340
    SKU:
    PPR_205340
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Truck Class:
    Heavy Duty
    Product Type:
    Exhaust
    Ready To Ship:
    Yes
    $17.42 - $45.94
    Qty in Cart: 0
    Price:
    $17.42 - $45.94
    Subtotal:
  • Commercial Vehicle Catalytic Converter Security

    Commercial Vehicle Catalytic Converter Security

    AFTERMARKET

    $178.99
    Security Shield For Your Catalytic ConverterSafeguard your catalytic converter from theft with the top-of-the-line Security Shield, specifically designed to protect commercial vehicles. This...
    09-080200015
    SKU:
    09-080200015
    Material Options:
    Steel
    Make:
    Universal Items
    Truck Class:
    Heavy Duty
    Product Type:
    Exhaust
    $178.99
    Qty in Cart: 0
    Price:
    $178.99
    Subtotal:
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Adding your products to cart

Peterbilt 386 High-Flow Exhaust Plumbing & Replacement Piping

Find the right heavy-duty flex connectors, exhaust adapters, and universal Y-pipes to keep backpressure in check and your diesel engine breathing. We stock everything required to map out a reliable Class 8 exhaust system from the turbocharger housing to the vertical stack tips. Swap out cracked factory Paccar bellows with our premium aftermarket replacement kits to absorb harsh engine vibrations and frame twist. Route your exhaust cleanly using our exact-fit aluminized steel down pipes, stainless flex connectors, and precision Y-pipes. Splicing out a rusted section to pass a DOT inspection? Grab our 16-gauge straight exhaust tubes, V-band clamps, and slip-fit sizing reducers to patch your framework fast. We also carry the premium exterior hardware needed for full custom dual-stack conversions, including Peterbilt 386 exhaust brackets. Upgrade your Peterbilt 386 stacks with chrome 90-degree long drop elbows, mirror-polished center spools, and heavy-duty poly exhaust bushings to kill the bracket rattle.

Frequently Asked Questions About Peterbilt 386 Elbows, Piping & Comp.

What exhaust and air system components are included in this category?

This category covers elbows, piping sections, and related components used in the exhaust and air intake/charge air systems on Peterbilt 386 trucks. This includes exhaust elbows, straight and curved piping, and connecting pieces that route exhaust gases or air between the engine, turbo, muffler, and stacks.

Will these elbows and piping fit my specific Peterbilt 386 without modification?

Fit can vary depending on engine configuration, exhaust setup, and the model year of your truck, so it is important to check the listed diameter, angle, and length specifications against your existing components before ordering. If you are unsure, comparing your old part's measurements to the product listing is the most reliable way to confirm a proper fit.

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

Most piping and elbows in this category are constructed from aluminized or stainless steel to withstand high exhaust temperatures and resist corrosion over time. Stainless steel options generally offer better long-term resistance to rust, while aluminized steel provides a more budget-friendly alternative with solid heat resistance.

Do I need any special tools or professional help to install new piping or elbows?

Basic exhaust piping and elbows can often be installed with common hand tools, clamps, and possibly a torch or cutting tool if trimming is required. However, because proper alignment affects both performance and exhaust leaks, many owners choose to have installation done or checked by a qualified technician, especially for turbo-side or tightly routed sections.

Are these components compliant with emissions and noise regulations?

Replacement piping and elbows are generally designed to maintain the original exhaust flow path and are not intended to alter emissions performance when installed as a factory-equivalent replacement. That said, it is your responsibility to verify that any component you install keeps your truck compliant with DOT, EPA, and any state or local noise and emissions regulations that apply to your vehicle.


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