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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
  • BESTfit 5 ID/OD X 4 Inch OAL 30 Degree Aluminized Steel Elbow

    BESTfit 5 ID/OD X 4 Inch OAL 30 Degree Aluminized Steel Elbow

    BESTFIT TRUCK PARTS

    $73.99
    BESTfit 5 Inch ID-OD X 4 Inch OAL 30 Degree Aluminized Steel Elbow* High Quality Elbow* Aluminized Steel* Dimensions  - 4 Inch Length  - 5 Inch ID/OD  - 30 Degree Angle  - 5.5 Inch Centerline Radius...
    09-080100106
    SKU:
    09-080100106
    Truck Class:
    Universal
    Diameter Options:
    5 Inch
    Style Options:
    Elbow
    Material Options:
    Aluminized Steel
    Degree Options:
    30
    Make:
    Universal Items
    Length Options:
    4 Inch
    Product Type:
    Exhaust
    $73.99
    Qty in Cart: 0
    Price:
    $73.99
    Subtotal:
  • BESTfit 5 OD X 4 Inch OAL 15 Degree Aluminized Steel Elbow

    BESTfit 5 OD X 4 Inch OAL 15 Degree Aluminized Steel Elbow

    BESTFIT TRUCK PARTS

    $73.99
    BESTfit 5 Inch O.D.-O.D. X 4 Inch OAL 15 Degree Aluminized Steel Elbow* High Quality 15 Degree Exhaust Elbow* O.D./O.D. Ends* Made Of High Quality Aluminized Steel* 5 Inch Diameter* Side A: 4 Inch...
    09-080100105
    SKU:
    09-080100105
    Diameter Options:
    5 Inch
    Truck Class:
    Universal
    Style Options:
    Elbow
    Material Options:
    Aluminized Steel
    Degree Options:
    15
    Make:
    Universal Items
    Length Options:
    4 Inch
    Product Type:
    Exhaust
    $73.99
    Qty in Cart: 0
    Price:
    $73.99
    Subtotal:
  • BESTfit 5 ID/OD X 4 Inch OAL 15 Degree Aluminized Steel Elbow

    BESTfit 5 ID/OD X 4 Inch OAL 15 Degree Aluminized Steel Elbow

    BESTFIT TRUCK PARTS

    $73.99
    BESTfit 5 Inch I.D.-O.D. X 4 Inch OAL 15 Degree Aluminized Steel Elbow* High Quality 15 Degree Exhaust Elbow* I.D./O.D. Ends* Made Of High Quality Aluminized Steel* 5 Inch Diameter* Side A: 4 Inch...
    09-080100104
    SKU:
    09-080100104
    Truck Class:
    Universal
    Diameter Options:
    5 Inch
    Style Options:
    Elbow
    Material Options:
    Aluminized Steel
    Degree Options:
    15
    Make:
    Universal Items
    Length Options:
    4 Inch
    Product Type:
    Exhaust
    $73.99
    Qty in Cart: 0
    Price:
    $73.99
    Subtotal:
  • BESTfit 4 Inch Diameter X 6.5 Inch OAL 90 Degree Tangent Cut Aluminized Steel Elbow

    BESTfit 4 Inch Diameter X 6.5 Inch OAL 90 Degree Tangent Cut Aluminized Steel Elbow

    BESTFIT TRUCK PARTS

    $67.99
    BESTfit 4 Inch Diameter X 6.5 Inch OAL 90 Degree Tangent Cut Aluminized Steel Elbow* High Quality Elbow* 90 Degree* Tangent Cut* Aluminized Steel* Dimensions  - 13 Inch Overall Length (6.5 x 6.5)  -...
    09-080100103
    SKU:
    09-080100103
    Truck Class:
    Universal
    Diameter Options:
    4 Inch
    Style Options:
    Elbow
    Material Options:
    Aluminized Steel
    Degree Options:
    90
    Make:
    Universal Items
    Length Options:
    6 Inch
    Product Type:
    Exhaust
    $67.99
    Qty in Cart: 0
    Price:
    $67.99
    Subtotal:
  • BESTfit 4 OD X 18 X 29 Inch 90 Degree Aluminized Steel Elbow

    BESTfit 4 OD X 18 X 29 Inch 90 Degree Aluminized Steel Elbow

    BESTFIT TRUCK PARTS

    $72.99
    BESTfit 4 Inch OD-OD X 18 X 29 Inch 90 Degree Aluminized Steel Elbow* High Quality Elbow* Aluminized Steel* Dimensions  - 36 Inch Overall Length (18x18)  - 4 Inch OD/OD  - 90 Degree Angle  - 4.5 Inch...
    09-080100102
    SKU:
    09-080100102
    Truck Class:
    Universal
    Diameter Options:
    4 Inch
    Style Options:
    Elbow
    Material Options:
    Aluminized Steel
    Degree Options:
    90
    Make:
    Universal Items
    Length Options:
    18 Inch
    Product Type:
    Exhaust
    $72.99
    Qty in Cart: 0
    Price:
    $72.99
    Subtotal:
  • BESTfit 4 ID/OD X 18 X 29 Inch 90 Degree Aluminized Steel Elbow

    BESTfit 4 ID/OD X 18 X 29 Inch 90 Degree Aluminized Steel Elbow

    BESTFIT TRUCK PARTS

    $72.99
    BESTfit 4 Inch ID-OD X 18 X 29 Inch 90 Degree Aluminized Steel Elbow* High Quality Elbow* Aluminized Steel* Dimensions  - 36 Inch Overall Length (18x18)  - 4 Inch ID/OD  - 90 Degree Angle  - 4.5 Inch...
    09-080100101
    SKU:
    09-080100101
    Diameter Options:
    4 Inch
    Truck Class:
    Universal
    Style Options:
    Elbow
    Material Options:
    Aluminized Steel
    Degree Options:
    90
    Make:
    Universal Items
    Length Options:
    18 Inch
    Product Type:
    Exhaust
    $72.99
    Qty in Cart: 0
    Price:
    $72.99
    Subtotal:
  • BESTfit 4 OD X 18 Inch OAL 90 Degree Chrome-Plated Steel Elbow

    BESTfit 4 OD X 18 Inch OAL 90 Degree Chrome-Plated Steel Elbow

    BESTFIT TRUCK PARTS

    $250.99
    BESTfit 4 Inch OD-OD X 18 Inch OAL 90 Degree Chrome-Plated Steel Elbow* High Quality Elbow* Chrome-Plated Steel* Dimensions  - 36 Inch Overall Length (18x18)  - 4 Inch OD/OD  - 90 Degree Angle  - 4.5...
    09-080100100
    SKU:
    09-080100100
    Truck Class:
    Universal
    Diameter Options:
    4 Inch
    Style Options:
    Elbow
    Material Options:
    Steel
    Degree Options:
    90
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Length Options:
    18 Inch
    Product Type:
    Exhaust
    $250.99
    Qty in Cart: 0
    Price:
    $250.99
    Subtotal:
  • BESTfit 4 OD X 18 Inch OAL 90 Degree Aluminized Steel Elbow

    BESTfit 4 OD X 18 Inch OAL 90 Degree Aluminized Steel Elbow

    BESTFIT TRUCK PARTS

    $63.99
    BESTfit 4 Inch OD-OD X 18 Inch OAL 90 Degree Aluminized Steel Elbow* High Quality Elbow* Aluminized Steel* Dimensions  - 36 Inch Overall Length (18x18)  - 4 Inch OD/OD  - 90 Degree Angle  - 4.5 Inch...
    09-080100099
    SKU:
    09-080100099
    Truck Class:
    Universal
    Diameter Options:
    4 Inch
    Style Options:
    Elbow
    Material Options:
    Aluminized Steel
    Degree Options:
    90
    Make:
    Universal Items
    Length Options:
    18 Inch
    Product Type:
    Exhaust
    $63.99
    Qty in Cart: 0
    Price:
    $63.99
    Subtotal:
  • BESTfit 4 ID/OD X 18 Inch OAL 90 Degree Chrome-Plated Steel Elbow

    BESTfit 4 ID/OD X 18 Inch OAL 90 Degree Chrome-Plated Steel Elbow

    BESTFIT TRUCK PARTS

    $264.99
    BESTfit 4 Inch ID-OD X 18 Inch OAL 90 Degree Chrome-Plated Steel Elbow* High Quality Elbow* Chrome-Plated Steel * Dimensions  - 36 Inch Overall Length (18x18)  - 4 Inch ID/OD  - 90 Degree Angle  - 4...
    09-080100098
    SKU:
    09-080100098
    Truck Class:
    Universal
    Diameter Options:
    4 Inch
    Style Options:
    Elbow
    Material Options:
    Steel
    Degree Options:
    90
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Length Options:
    18 Inch
    Product Type:
    Exhaust
    $264.99
    Qty in Cart: 0
    Price:
    $264.99
    Subtotal:
  • TPHD 4 ID-OD X 18 Inch 90 Degree Aluminized Steel Exhaust Elbow

    TPHD 4 ID-OD X 18 Inch 90 Degree Aluminized Steel Exhaust Elbow

    TURNPIKE TRUCK TRIM

    $58.99
    4 inch Elbow 90 Degree 18 inch x 18 inch Aluminized By TPHDMaintain optimal exhaust performance with the TPHD 4 ID-OD X 18 Inch 90 Degree Aluminized Steel Exhaust Elbow. This premium aluminized steel...
    09-080100097
    SKU:
    09-080100097
    Diameter Options:
    4 Inch
    Truck Class:
    Universal
    Style Options:
    Elbow
    Material Options:
    Aluminized Steel
    Degree Options:
    90
    Make:
    Universal Items
    Length Options:
    18 Inch
    Product Type:
    Exhaust
    Ready To Ship:
    Yes
    $58.99
    Qty in Cart: 0
    Price:
    $58.99
    Subtotal:
  • BESTfit 4 OD X 15 Inch OAL 90 Degree Chrome-Plated Steel Elbow

    BESTfit 4 OD X 15 Inch OAL 90 Degree Chrome-Plated Steel Elbow

    BESTFIT TRUCK PARTS

    $192.99
    BESTfit 4 Inch O.D.-O.D. X 15 Inch OAL 90 Degree Chrome-Plated Steel Elbow* High Quality 90 Degree Exhaust Elbow* O.D./O.D. Ends* Made Of High Quality Chrome-Plated Steel* Dimensions  - 4 Inch...
    09-080100096
    SKU:
    09-080100096
    Truck Class:
    Universal
    Diameter Options:
    4 Inch
    Style Options:
    Elbow
    Material Options:
    Steel
    Degree Options:
    90
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Length Options:
    15 Inch
    Product Type:
    Exhaust
    $192.99
    Qty in Cart: 0
    Price:
    $192.99
    Subtotal:
  • BESTfit 4 OD X 15 Inch OAL 90 Degree Aluminized Steel Elbow

    BESTfit 4 OD X 15 Inch OAL 90 Degree Aluminized Steel Elbow

    BESTFIT TRUCK PARTS

    $63.99
    BESTfit 4 Inch O.D.-O.D. X 15 Inch OAL 90 Degree Aluminized Steel Elbow* High Quality 90 Degree Exhaust Elbow* O.D./O.D. Ends* Made Of High Quality Aluminized Steel* Dimensions  - 4 Inch Diameter  -...
    09-080100095
    SKU:
    09-080100095
    Truck Class:
    Universal
    Diameter Options:
    4 Inch
    Style Options:
    Elbow
    Material Options:
    Aluminized Steel
    Degree Options:
    90
    Make:
    Universal Items
    Length Options:
    15 Inch
    Product Type:
    Exhaust
    $63.99
    Qty in Cart: 0
    Price:
    $63.99
    Subtotal:
  • BESTfit 4 ID/OD X 15 Inch OAL 90 Degree Chrome-Plated Steel Elbow

    BESTfit 4 ID/OD X 15 Inch OAL 90 Degree Chrome-Plated Steel Elbow

    BESTFIT TRUCK PARTS

    $202.99
    BESTfit 4 Inch I.D.-O.D. X 15 Inch OAL 90 Degree Chrome-Plated Steel Elbow* High Quality 15 Degree Exhaust Elbow* I.D./O.D. Ends* Made Of High Quality Chrome-Plated Steel* Dimensions  - 4 Inch...
    09-080100094
    SKU:
    09-080100094
    Truck Class:
    Universal
    Diameter Options:
    4 Inch
    Style Options:
    Elbow
    Material Options:
    Steel
    Degree Options:
    90
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Length Options:
    15 Inch
    Product Type:
    Exhaust
    $202.99
    Qty in Cart: 0
    Price:
    $202.99
    Subtotal:
  • BESTfit 4 ID/OD X 15 Inch OAL 90 Degree Aluminized Steel Elbow

    BESTfit 4 ID/OD X 15 Inch OAL 90 Degree Aluminized Steel Elbow

    BESTFIT TRUCK PARTS

    $51.99
    BESTfit 4 Inch ID-O.D. X 15 Inch OAL 90 Degree Aluminized Steel Elbow* High Quality 90 Degree Exhaust Elbow* O.D./O.D. Ends* Made Of Aluminized Steel* Dimensions  - 4 Inch Diameter  - Side A: 15 Inch...
    09-080100093
    SKU:
    09-080100093
    Diameter Options:
    4 Inch
    Truck Class:
    Universal
    Style Options:
    Elbow
    Material Options:
    Aluminized Steel
    Degree Options:
    90
    Make:
    Universal Items
    Length Options:
    15 Inch
    Product Type:
    Exhaust
    Ready To Ship:
    Yes
    $51.99
    Qty in Cart: 0
    Price:
    $51.99
    Subtotal:
  • BESTfit 4 OD X 10 Inch OAL 90 Degree Chrome-Plated Steel Elbow

    BESTfit 4 OD X 10 Inch OAL 90 Degree Chrome-Plated Steel Elbow

    BESTFIT TRUCK PARTS

    $230.99
    BESTfit 4 Inch OD-OD X 10 Inch OAL 90 Degree Chrome-Plated Steel Elbow* High Quality Elbow* Chrome-Plated Steel* Dimensions  - 20 Inch Overall Length(10x10)  - 4 Inch OD/OD  - 90 Degree Angle  - 4.5...
    09-080100092
    SKU:
    09-080100092
    Truck Class:
    Universal
    Diameter Options:
    4 Inch
    Style Options:
    Elbow
    Material Options:
    Steel
    Degree Options:
    90
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Length Options:
    10 Inch
    Product Type:
    Exhaust
    $230.99
    Qty in Cart: 0
    Price:
    $230.99
    Subtotal:
  • BESTfit 4 OD X 10 Inch OAL 90 Degree Aluminized Steel Elbow

    BESTfit 4 OD X 10 Inch OAL 90 Degree Aluminized Steel Elbow

    BESTFIT TRUCK PARTS

    $54.99
    BESTfit 4 Inch OD-OD X 10 Inch OAL 90 Degree Aluminized Steel Elbow* High Quality Elbow* Aluminized Steel * Dimensions  - 20 Inch Overall Length (10x10)  - 4 Inch OD/OD  - 90 Degree Angle  - 4.5 Inch...
    09-080100091
    SKU:
    09-080100091
    Truck Class:
    Universal
    Diameter Options:
    4 Inch
    Style Options:
    Elbow
    Material Options:
    Aluminized Steel
    Degree Options:
    90
    Make:
    Universal Items
    Length Options:
    10 Inch
    Product Type:
    Exhaust
    $54.99
    Qty in Cart: 0
    Price:
    $54.99
    Subtotal:
  • TPHD 4 Inch ID-OD X 10 Inch OAL 90 Degree Aluminized Steel Elbow

    TPHD 4 Inch ID-OD X 10 Inch OAL 90 Degree Aluminized Steel Elbow

    TURNPIKE TRUCK TRIM

    $54.99
    4 Inch ID-OD X 10 Inch OAL 90 Degree Aluminized Steel ElbowThe TPHD 4 Inch ID-OD X 10 Inch OAL 90 Degree Aluminized Steel Elbow is engineered to provide long-lasting, reliable exhaust performance...
    09-080100090
    SKU:
    09-080100090
    Truck Class:
    Universal
    Diameter Options:
    4 Inch
    Style Options:
    Elbow
    Material Options:
    Aluminized Steel
    Degree Options:
    90
    Make:
    Universal Items
    Length Options:
    10 Inch
    Product Type:
    Exhaust
    Ready To Ship:
    Yes
    $54.99
    Qty in Cart: 0
    Price:
    $54.99
    Subtotal:
  • BESTfit 4 OD X 8 Inch OAL 90 Degree Chrome-Plated Steel Elbow

    BESTfit 4 OD X 8 Inch OAL 90 Degree Chrome-Plated Steel Elbow

    BESTFIT TRUCK PARTS

    $214.99
    BESTfit 4 Inch OD-OD X 8 Inch OAL 90 Degree Chrome-Plated Steel Elbow* High Quality Elbow* Chrome-Plated Steel* Dimensions  - 16 Inch Overall Length (8x8)  - 4 Inch OD/OD  - 90 Degree Angle  - 4.5...
    09-080100089
    SKU:
    09-080100089
    Diameter Options:
    4 Inch
    Truck Class:
    Universal
    Style Options:
    Elbow
    Material Options:
    Steel
    Degree Options:
    90
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Length Options:
    8 Inch
    Product Type:
    Exhaust
    $214.99
    Qty in Cart: 0
    Price:
    $214.99
    Subtotal:
  • BESTfit 4 OD X 6 Inch OAL 90 Degree Aluminized Steel Elbow

    BESTfit 4 OD X 6 Inch OAL 90 Degree Aluminized Steel Elbow

    BESTFIT TRUCK PARTS

    $56.99
    BESTfit 4 Inch OD-OD X 6 Inch OAL 90 Degree Aluminized Steel Elbow* High Quality Elbow* Aluminized Steel * Dimensions  - 12 Inch Overall Length(6x6)  - 4 Inch OD/OD  - 90 Degree Angle  - 4.5 Inch...
    09-080100088
    SKU:
    09-080100088
    Truck Class:
    Universal
    Diameter Options:
    4 Inch
    Style Options:
    Elbow
    Material Options:
    Aluminized Steel
    Degree Options:
    90
    Make:
    Universal Items
    Length Options:
    6 Inch
    Product Type:
    Exhaust
    $56.99
    Qty in Cart: 0
    Price:
    $56.99
    Subtotal:
  • BESTfit 4 OD X 12 Inch OAL 60 Degree Aluminized Steel Elbow

    BESTfit 4 OD X 12 Inch OAL 60 Degree Aluminized Steel Elbow

    BESTFIT TRUCK PARTS

    $54.99
    BESTfit 4 Inch OD-OD X 12 Inch OAL 60 Degree Aluminized Steel Elbow* High Quality Elbow* Aluminized Steel * Dimensions  - 24 Inch Overall Length (12x12)  - 4 Inch OD/OD  - 60 Degree Angle  - 4.5 Inch...
    09-080100087
    SKU:
    09-080100087
    Truck Class:
    Universal
    Diameter Options:
    4 Inch
    Style Options:
    Elbow
    Material Options:
    Aluminized Steel
    Degree Options:
    60
    Make:
    Universal Items
    Length Options:
    12 Inch
    Product Type:
    Exhaust
    $54.99
    Qty in Cart: 0
    Price:
    $54.99
    Subtotal:
  • Total: items /

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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