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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
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • 3 ID X 18 Inch 409 Stainless Steel Flex Tubing

    3 ID X 18 Inch 409 Stainless Steel Flex Tubing

    AUTOMANN USA

    $41.37
    3 Inch ID 409 Stainless Steel Drop Flex Tubing Replaces 89613K* High Quality Flex Tubing* 409 Stainless Steel* Dimensions:  - 3.00 Inch I.D.  - 18.00 Inch Length* Sold Individually* Warranty On Flex...
    09-08040002
    SKU:
    09-08040002
    Material Options:
    Stainless Steel
    Product Type:
    Exhaust
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    $41.37
    Qty in Cart: 0
    Price:
    $41.37
    Subtotal:
  • 5 ID X 24 Inch Galvanized Steel Flex Tubing

    5 ID X 24 Inch Galvanized Steel Flex Tubing

    AUTOMANN USA

    $37.50
    5 Inch ID Galvanized Steel Drop Flex Tubing Replaces G15524, J024837* High Quality Flex Tubing* Galvanized Steel* Dimensions:  - 5 Inch I.D.  - 24 Inch Length* Sold Individually* Warranty On Flex...
    09-08010065
    SKU:
    09-08010065
    Material Options:
    Stainless Steel
    Product Type:
    Exhaust
    Truck Class:
    Heavy Duty
    Finish Options:
    Galvanized
    Make:
    Universal Items
    $37.50
    Qty in Cart: 0
    Price:
    $37.50
    Subtotal:
  • 4 ID Inch X 25 Ft 304 Stainless Steel Flex Tubing

    4 ID Inch X 25 Ft 304 Stainless Steel Flex Tubing

    AUTOMANN USA

    $798.99
    4 Inch ID 304 Stainless Steel Drop Flex Tubing Replaces SF4300* High Quality Tubing* 304 Stainless Steel* Dimensions:  - 4 Inch Diameter  - 25 Ft Length* Flexible* Sold Individually* Warranty On...
    09-08010056
    SKU:
    09-08010056
    Material Options:
    Stainless Steel
    Product Type:
    Exhaust
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    $798.99
    Qty in Cart: 0
    Price:
    $798.99
    Subtotal:
  • 3.5 ID X 12 Inch 409 Stainless Steel Flex Tubing

    3.5 ID X 12 Inch 409 Stainless Steel Flex Tubing

    AUTOMANN USA

    $31.03
    3.5 Inch ID 409 Stainless Steel Drop Flex Tubing Replaces 89616K* High Quality Flex Tubing* 409 Stainless Steel* Dimensions:  - 3.5 Inch I.D.  - 12 Inch Length* Sold Individually* Warranty On Flex...
    09-08010066
    SKU:
    09-08010066
    Product Type:
    Exhaust
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    $31.03
    Qty in Cart: 0
    Price:
    $31.03
    Subtotal:
  • BESTfit 5 Inch ID-OD Chrome Exhaust Tee 24 Inch OD & 15 Inch ID

    BESTfit 5 Inch ID-OD Chrome Exhaust Tee 24 Inch OD & 15 Inch ID

    BESTFIT TRUCK PARTS

    $243.99
    5 Inch ID-OD Chrome Exhaust Tee 24 Inch OD & 15 Inch ID By BESTfit* High Quality Exhaust Y-Pipe* Made Of Chrome Plated Steel* 2-Bend Design* Universal Fit* Dimensions:  - 24 Inch Outlet To Outlet...
    09-0806515
    SKU:
    09-0806515
    Product Type:
    Exhaust
    Diameter Options:
    5 Inch
    Finish Options:
    Chrome-Plated
    Location:
    Made In USA
    Material Options:
    Steel
    Length Options:
    24 Inch
    Make:
    Universal Items
    $243.99
    Qty in Cart: 0
    Price:
    $243.99
    Subtotal:
  • BESTfit 6 X 36 Inch Stainless Steel Flex Pipe Replaces 53-600

    BESTfit 6 X 36 Inch Stainless Steel Flex Pipe Replaces 53-600

    BESTFIT TRUCK PARTS

    $129.99
    6 X 36 Inch Stainless Steel Flex Pipe By BESTfit Replaces 53-600* High Quality Exhaust Flex Pipe* Made Of Stainless Steel* Flexible Construction* Dimensions:  - 36 Inch Length  - 6 Inch Inside...
    09-08046364
    SKU:
    09-08046364
    Product Type:
    Exhaust
    Length Options:
    36 Inch
    Diameter Options:
    6 Inch
    Material Options:
    Stainless Steel
    Location:
    Made In USA
    Make:
    Universal Items
    $129.99
    Qty in Cart: 0
    Price:
    $129.99
    Subtotal:
  • BESTfit Chrome Plated Steel Exhaust Elbow W/ 90 Degree Bend & 7 ID X 5 OD Inch

    BESTfit Chrome Plated Steel Exhaust Elbow W/ 90 Degree Bend & 7 ID X 5 OD Inch

    BESTFIT TRUCK PARTS

    $660.99
    7 ID X 5 OD Inch Chrome Plated Steel Exhaust Elbow W/ 90 Degree Bend By BESTfit* High Quality Exhaust Elbow* Made Of Chrome Plated Steel* 90 Degree Bend* Reducer Style Design* 7 Inch Outside Diameter...
    09-08011717
    SKU:
    09-08011717
    Product Type:
    Exhaust
    Degree Options:
    90
    Material Options:
    Steel
    Finish Options:
    Chrome-Plated
    Location:
    Made In USA
    Diameter Options:
    7 To 5 Inch
    Make:
    Universal Items
    $660.99
    Qty in Cart: 0
    Price:
    $660.99
    Subtotal:
  • BESTfit 5 Inch Pre-Cut Galvanized Metal Flex Hose

    BESTfit 5 Inch Pre-Cut Galvanized Metal Flex Hose

    BESTFIT TRUCK PARTS

    $20.19 - $80.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksBESTfit 5 X 12 Inch Galvanized Steel Flex Hose5 X 12 Inch Galvanized Flex Hose By BESTfit* High Quality...
    PPR_300291
    SKU:
    PPR_300291
    Finish Options:
    Galvanized
    Length Options:
    18 Inch
    Length Options:
    60 Inch
    Product Type:
    Exhaust
    Material Options:
    Steel
    Style Options:
    Pre-Cut
    Diameter Options:
    5 Inch
    Length Options:
    12 Inch
    Length Options:
    48 Inch
    Style Options:
    Flex
    Make:
    Universal Items
    $20.19 - $80.99
    Qty in Cart: 0
    Price:
    $20.19 - $80.99
    Subtotal:
  • BESTfit 5 Inch Standard Duty Roll Galvanized Metal Hose

    BESTfit 5 Inch Standard Duty Roll Galvanized Metal Hose

    BESTFIT TRUCK PARTS

    $135.99 - $292.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksBESTfit 5 Inch X 10 Ft Galvanized Steel Flex Hose5 Inch X 10 Ft Galvanized Flex Hose By BESTfit* High...
    PPR_300294
    SKU:
    PPR_300294
    Product Type:
    Exhaust
    Length Options:
    300 Inch
    Finish Options:
    Galvanized
    Length Options:
    120 Inch
    Diameter Options:
    5 Inch
    Style Options:
    Standard
    Material Options:
    Steel
    Make:
    Universal Items
    $135.99 - $292.99
    Qty in Cart: 0
    Price:
    $135.99 - $292.99
    Subtotal:
  • BESTFit 3 Inch Standard Duty Roll Galvanized Metal Hose

    BESTFit 3 Inch Standard Duty Roll Galvanized Metal Hose

    BESTFIT TRUCK PARTS

    $87.99 - $207.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksBESTfit 3 Inch X 10 Ft Galvanized Steel Flex Hose3 Inch X 10 Ft Galvanized Flex Hose By BESTfit* High...
    PPR_300287
    SKU:
    PPR_300287
    Diameter Options:
    3 Inch
    Length Options:
    120 Inch
    Material Options:
    Steel
    Product Type:
    Exhaust
    Style Options:
    Standard
    Finish Options:
    Galvanized
    Length Options:
    300 Inch
    Make:
    Universal Items
    $87.99 - $207.99
    Qty in Cart: 0
    Price:
    $87.99 - $207.99
    Subtotal:
  • BESTfit 3.5 Inch Standard Duty Roll Galvanized Metal Hose

    BESTfit 3.5 Inch Standard Duty Roll Galvanized Metal Hose

    BESTFIT TRUCK PARTS

    $101.99 - $224.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksBESTfit 3.5 Inch X 10 Ft Galvanized Steel Flex Hose3.5 Inch X 10 Ft Galvanized Flex Hose By BESTfit*...
    PPR_300292
    SKU:
    PPR_300292
    Product Type:
    Exhaust
    Length Options:
    300 Inch
    Diameter Options:
    3 1/2 Inch
    Finish Options:
    Galvanized
    Material Options:
    Steel
    Length Options:
    120 Inch
    Style Options:
    Standard
    Make:
    Universal Items
    $101.99 - $224.99
    Qty in Cart: 0
    Price:
    $101.99 - $224.99
    Subtotal:
  • BESTfit 4 Inch Pre-Cut Galvanized Metal Flex Hose

    BESTfit 4 Inch Pre-Cut Galvanized Metal Flex Hose

    BESTFIT TRUCK PARTS

    $24.39 - $74.15
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksBESTfit 4 X 18 Inch Galvanized Steel Flex Hose4 X 18 Inch Galvanized Flex Hose By BESTfit* High Quality...
    PPR_300290
    SKU:
    PPR_300290
    Diameter Options:
    4 Inch
    Length Options:
    36 Inch
    Length Options:
    18 Inch
    Length Options:
    24 Inch
    Style Options:
    Flex
    Material Options:
    Steel
    Product Type:
    Exhaust
    Finish Options:
    Galvanized
    Length Options:
    60 Inch
    Make:
    Universal Items
    $24.39 - $74.15
    Qty in Cart: 0
    Price:
    $24.39 - $74.15
    Subtotal:
  • BESTfit 3 Inch Pre-Cut Galvanized Metal Flex Hose

    BESTfit 3 Inch Pre-Cut Galvanized Metal Flex Hose

    BESTFIT TRUCK PARTS

    $29.99 - $34.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksBESTfit 3 X 24 Inch Galvanized Steel Flex Hose3 X 24 Inch Galvanized Flex Hose By BESTfit* High Quality...
    PPR_300288
    SKU:
    PPR_300288
    Style Options:
    Flex
    Length Options:
    36 Inch
    Finish Options:
    Galvanized
    Material Options:
    Steel
    Length Options:
    24 Inch
    Product Type:
    Exhaust
    Diameter Options:
    3 Inch
    Make:
    Universal Items
    $29.99 - $34.99
    Qty in Cart: 0
    Price:
    $29.99 - $34.99
    Subtotal:
  • BESTfit 4 Inch Standard Duty Roll Galvanized Metal Hose

    BESTfit 4 Inch Standard Duty Roll Galvanized Metal Hose

    BESTFIT TRUCK PARTS

    $130.99 - $250.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksBESTfit 4 Inch X 10 Ft Galvanized Steel Flex Hose4 Inch X 10 Ft Galvanized Flex Hose By BESTfit* High...
    PPR_300293
    SKU:
    PPR_300293
    Length Options:
    120 Inch
    Style Options:
    Standard
    Diameter Options:
    4 Inch
    Material Options:
    Steel
    Finish Options:
    Galvanized
    Product Type:
    Exhaust
    Length Options:
    300 Inch
    Make:
    Universal Items
    $130.99 - $250.99
    Qty in Cart: 0
    Price:
    $130.99 - $250.99
    Subtotal:
  • BESTfit 2.5 Inch Standard Duty Roll Galvanized Metal Hose

    BESTfit 2.5 Inch Standard Duty Roll Galvanized Metal Hose

    BESTFIT TRUCK PARTS

    $87.99 - $186.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksBESTfit 2.5 Inch X 10 Ft Galvanized Steel Flex Hose2.5 Inch X 10 Ft Galvanized Flex Hose By BESTfit*...
    PPR_300215
    SKU:
    PPR_300215
    Length Options:
    120 Inch
    Style Options:
    Standard
    Diameter Options:
    2 1/2 Inch
    Material Options:
    Steel
    Finish Options:
    Galvanized
    Product Type:
    Exhaust
    Length Options:
    300 Inch
    Make:
    Universal Items
    $87.99 - $186.99
    Qty in Cart: 0
    Price:
    $87.99 - $186.99
    Subtotal:
  • BESTfit 3.5 Inch Pre-Cut Galvanized Metal Flex Hose

    BESTfit 3.5 Inch Pre-Cut Galvanized Metal Flex Hose

    BESTFIT TRUCK PARTS

    $18.59 - $39.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksBESTfit 3.5 X 12 Inch Galvanized Steel Flex Hose3.5 X 12 Inch Galvanized Flex Hose By BESTfit* High...
    PPR_300289
    SKU:
    PPR_300289
    Length Options:
    12 Inch
    Finish Options:
    Chrome-Plated
    Length Options:
    24 Inch
    Finish Options:
    Galvanized
    Product Type:
    Exhaust
    Length Options:
    36 Inch
    Diameter Options:
    3 1/2 Inch
    Style Options:
    Flex
    Length Options:
    18 Inch
    Material Options:
    Steel
    Make:
    Universal Items
    $18.59 - $39.99
    Qty in Cart: 0
    Price:
    $18.59 - $39.99
    Subtotal:
  • LC 8 Inch OD Chrome 60 Degree Elbow For Peterbilt

    LC 8 Inch OD Chrome 60 Degree Elbow For Peterbilt

    LINCOLN CHROME

    $521.99
    8 Inch OD Chrome 60 Degree Elbow By Lincoln ChromeAdd durability and a polished look to your Peterbilt exhaust system with the 8 Inch OD Chrome 60 Degree Elbow by Lincoln Chrome. The 60-degree bend,...
    01-0818001
    SKU:
    01-0818001
    Material Options:
    Steel
    Length Options:
    8 Inch
    Product Type:
    Exhaust
    Finish Options:
    Chrome-Plated
    Degree Options:
    60
    Style Options:
    Elbow
    Make:
    Peterbilt
    $521.99
    Qty in Cart: 0
    Price:
    $521.99
    Subtotal:
  • LC 6 Inch OD Chrome 60 Degree Elbow For Peterbilt

    LC 6 Inch OD Chrome 60 Degree Elbow For Peterbilt

    LINCOLN CHROME

    $466.99
    6 Inch OD Chrome 60 Degree Elbow By Lincoln ChromeImprove your Peterbilt's exhaust routing with the 6 Inch OD Chrome 60 Degree Elbow by Lincoln Chrome. Built with durable chrome, this elbow features...
    01-0816001
    SKU:
    01-0816001
    Finish Options:
    Chrome-Plated
    Style Options:
    Elbow
    Degree Options:
    60
    Product Type:
    Exhaust
    Length Options:
    6 Inch
    Material Options:
    Steel
    Make:
    Peterbilt
    $466.99
    Qty in Cart: 0
    Price:
    $466.99
    Subtotal:
  • BESTfit 25-Foot Roll Heavy Duty Galvanized Metal Hose

    BESTfit 25-Foot Roll Heavy Duty Galvanized Metal Hose

    BESTFIT TRUCK PARTS

    $293.99 - $383.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksBESTfit 4 Inch X 25 Ft Galvanized Steel Flex Hose4 Inch X 25 Ft Galvanized Flex Hose By BESTfit* High...
    PPR_300295
    SKU:
    PPR_300295
    Product Type:
    Exhaust
    Diameter Options:
    4 Inch
    Diameter Options:
    5 Inch
    Material Options:
    Steel
    Length Options:
    300 Inch
    Finish Options:
    Galvanized
    Style Options:
    Standard
    Style Options:
    Heavy Duty
    Make:
    Universal Items
    $293.99 - $383.99
    Qty in Cart: 0
    Price:
    $293.99 - $383.99
    Subtotal:
  • BESTfit 7-5.5 Inch 90 Degree Rubber Reducer Elbow

    BESTfit 7-5.5 Inch 90 Degree Rubber Reducer Elbow

    BESTFIT TRUCK PARTS

    $87.99
    7-5.5 Inch 90 Degree Rubber Reducer Elbow By BESTfitKeep your air intake system performing at peak efficiency with the BESTfit 7-5.5 Inch 90 Degree Rubber Reducer Elbow, engineered for a smooth...
    GR-RRE-790-55
    SKU:
    GR-RRE-790-55
    Degree Options:
    90
    Product Type:
    Exhaust
    Material Options:
    Rubber
    Diameter Options:
    7 Inch
    Make:
    Universal Items
    $87.99
    Qty in Cart: 0
    Price:
    $87.99
    Subtotal:
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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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