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Peterbilt 367 DPF & Mufflers

Need reliable DPF and mufflers for your Peterbilt 367 truck? Our lineup of DPF and muffler products for your Peterbilt is built to meet top-notch standards, ensuring effective emissions control and reduced engine noise. Whether you're in need of replacements or regular maintenance for these critical parts, our collection provides the durability and performance you can rely on. Count on our products to keep your Peterbilt 367 running smoothly while meeting environmental requirements.
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    9 Inch Diameter Short Galvanized Exhaust Muffler 5 ID / 5 ID X 12 Inch Body Length by BESTfit

    9 Inch Diameter Short Galvanized Exhaust Muffler 5 ID / 5 ID X 12 Inch Body Length by BESTfit

    BESTFIT TRUCK PARTS

    $94.99
    BESTfit 9 x 12 Inch Muffler W/ 5 Inch ID Inlet & OutletTransform your truck's exhaust system with the BESTfit 9 X 12 Inch Short Galvanized Exhaust Muffler, featuring a 5 Inch ID inlet and outlet for...
    09-080201
    SKU:
    09-080201
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Finish Options:
    Galvanized
    Diameter Options:
    9 Inch
    Length Options:
    12 Inch
    Product Type:
    Exhaust
    Ready To Ship:
    Yes
    $94.99
    Qty in Cart: 0
    Price:
    $94.99
    Subtotal:
  • BESTfit 6 Inch Diameter Quiet Performance Muffler 4 ID / 5 ID X 29 Inch OAL

    BESTfit 6 Inch Diameter Quiet Performance Muffler 4 ID / 5 ID X 29 Inch OAL

    BESTFIT TRUCK PARTS

    $1,064.99
    BESTfit 6 X 29 Inch Aluminized Steel Quiet Performance Muffler W/ 4 Inch Inlet, 5 Inch OutletElevate your driving experience with the BESTfit 6 X 29 Inch Aluminized Steel Quiet Performance Muffler...
    09-080200013
    SKU:
    09-080200013
    Truck Class:
    Universal
    Diameter Options:
    5 Inch
    Length Options:
    29 Inch
    Material Options:
    Aluminized Steel
    Make:
    Universal Items
    Product Type:
    Exhaust
    $1,064.99
    Qty in Cart: 0
    Price:
    $1,064.99
    Subtotal:
  • BESTfit 6 Inch Diameter Quiet Performance Muffler 4 ID / ID X 29 Inch OAL

    BESTfit 6 Inch Diameter Quiet Performance Muffler 4 ID / ID X 29 Inch OAL

    BESTFIT TRUCK PARTS

    $622.99
    BESTfit 6 X 29 Inch Aluminized Steel Quiet Performance Muffler W/ 4 Inch Inlet/OutletDiscover the ultimate solution for a quieter ride with the BESTfit 6 X 29 Inch Aluminized Steel Quiet Performance...
    09-080200012
    SKU:
    09-080200012
    Diameter Options:
    4 Inch
    Truck Class:
    Universal
    Length Options:
    29 Inch
    Material Options:
    Aluminized Steel
    Make:
    Universal Items
    Product Type:
    Exhaust
    $622.99
    Qty in Cart: 0
    Price:
    $622.99
    Subtotal:
  • BESTfit 8 OD X 45 Inch VK Internal Muffler Pipe

    BESTfit 8 OD X 45 Inch VK Internal Muffler Pipe

    BESTFIT TRUCK PARTS

    $696.99
    BESTfit 8 Inch OD X 45 Inch VK Internal Muffler PipeTransform your vehicle's exhaust system with the BESTfit 8 Inch OD X 45 Inch VK Internal Muffler Pipe, the ultimate solution for drivers seeking...
    09-080200011
    SKU:
    09-080200011
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Length Options:
    45 Inch
    Diameter Options:
    8 Inch
    Product Type:
    Exhaust
    $696.99
    Qty in Cart: 0
    Price:
    $696.99
    Subtotal:
  • BESTfit 7 OD X 45 Inch VK Internal Muffler Pipe

    BESTfit 7 OD X 45 Inch VK Internal Muffler Pipe

    BESTFIT TRUCK PARTS

    $867.99
    BESTfit 7 Inch OD X 45 Inch VK Internal Muffler PipeEnhance your truck's exhaust system with the BESTfit 7 Inch OD X 45 Inch VK Internal Muffler Pipe, a solution designed for superior performance...
    09-080200010
    SKU:
    09-080200010
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Diameter Options:
    7 Inch
    Length Options:
    45 Inch
    Product Type:
    Exhaust
    $867.99
    Qty in Cart: 0
    Price:
    $867.99
    Subtotal:
  • BESTfit 6 OD X 45 Inch VK Internal Muffler Pipe

    BESTfit 6 OD X 45 Inch VK Internal Muffler Pipe

    BESTFIT TRUCK PARTS

    $928.99
    BESTfit 6 Inch OD X 45 Inch VK Internal Muffler PipeIntroducing the BESTfit 6 Inch OD X 45 Inch VK Internal Muffler Pipe, the ultimate upgrade for your truck's exhaust system. Constructed from...
    09-080200009
    SKU:
    09-080200009
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Length Options:
    45 Inch
    Diameter Options:
    6 Inch
    Product Type:
    Exhaust
    $928.99
    Qty in Cart: 0
    Price:
    $928.99
    Subtotal:
  • BESTfit 5 OD X 45 Inch VK Internal Muffler Pipe

    BESTfit 5 OD X 45 Inch VK Internal Muffler Pipe

    BESTFIT TRUCK PARTS

    $775.99
    BESTfit 5 Inch OD X 45 Inch VK Internal Muffler PipeElevate your truck's exhaust system with the BESTfit 5 Inch OD X 45 Inch VK Internal Muffler Pipe, an upgrade designed for superior performance and...
    09-080200008
    SKU:
    09-080200008
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Diameter Options:
    5 Inch
    Length Options:
    45 Inch
    Product Type:
    Exhaust
    $775.99
    Qty in Cart: 0
    Price:
    $775.99
    Subtotal:
  • BESTfit 5 OD X 18 Inch Aluminized Internal Muffler / Baffle -16 Gauge

    BESTfit 5 OD X 18 Inch Aluminized Internal Muffler / Baffle -16 Gauge

    BESTFIT TRUCK PARTS

    $79.99
    BESTfit Type 1 A 16 Gauge Aluminized Steel Internal MufflerThis high-performance internal muffler is designed for 36-inch straight stacks, fitting into the bottom for efficient operation on older...
    09-080200006
    SKU:
    09-080200006
    Diameter Options:
    5 Inch
    Truck Class:
    Universal
    Length Options:
    18 Inch
    Material Options:
    Aluminized Steel
    Make:
    Universal Items
    Product Type:
    Exhaust
    $79.99
    Qty in Cart: 0
    Price:
    $79.99
    Subtotal:
  • BESTfit 4 X 18 Inch Aluminized Steel Internal Muffler 16 Gauge

    BESTfit 4 X 18 Inch Aluminized Steel Internal Muffler 16 Gauge

    BESTFIT TRUCK PARTS

    $66.99
    BESTfit Internal Exhaust Baffle TubeExperience the superior quality of the BESTfit 4 X 18 Inch 16 Gauge Aluminized Steel Internal Muffler from 4 State Trucks. This premium internal muffler, made from...
    09-080200005
    SKU:
    09-080200005
    Truck Class:
    Universal
    Diameter Options:
    4 Inch
    Length Options:
    18 Inch
    Material Options:
    Aluminized Steel
    Make:
    Universal Items
    Product Type:
    Exhaust
    Ready To Ship:
    Yes
    $66.99
    Qty in Cart: 0
    Price:
    $66.99
    Subtotal:
  • BESTfit 8 Inch Diameter Powerflow Muffler Type 1 4 ID / ID X 21 Inch OAL

    BESTfit 8 Inch Diameter Powerflow Muffler Type 1 4 ID / ID X 21 Inch OAL

    BESTFIT TRUCK PARTS

    $181.99
    BESTfit 4 Inch In/Out X 8 X 21 Inch Aluminized Steel Type 1 MufflerDiscover the superior performance of the BESTfit 4 Inch In/Out X 8 X 21 Inch Aluminized Steel Type 1 Muffler, designed for those who...
    09-080200004
    SKU:
    09-080200004
    Truck Class:
    Universal
    Diameter Options:
    4 Inch
    Length Options:
    21 1/2 Inch
    Material Options:
    Aluminized Steel
    Make:
    Universal Items
    Product Type:
    Exhaust
    $181.99
    Qty in Cart: 0
    Price:
    $181.99
    Subtotal:
  • BESTfit 8 Inch Diameter Muffler Type 1 4 ID / 5 ID X 21 Inch OAL

    BESTfit 8 Inch Diameter Muffler Type 1 4 ID / 5 ID X 21 Inch OAL

    BESTFIT TRUCK PARTS

    $145.99
    BESTfit 4 Inch In X 5 Inch Out X 8 X 21 Inch Aluminized Steel Type 1 MufflerBoost your truck's exhaust performance with the BESTfit 4 Inch In X 5 Inch Out X 8 X 21 Inch Aluminized Steel Type 1...
    09-080200003
    SKU:
    09-080200003
    Diameter Options:
    5 Inch
    Truck Class:
    Universal
    Length Options:
    21 Inch
    Material Options:
    Aluminized Steel
    Make:
    Universal Items
    Style Options:
    Angled
    Product Type:
    Exhaust
    $145.99
    Qty in Cart: 0
    Price:
    $145.99
    Subtotal:
  • 10 Inch Diameter Performance Muffler 6 ID / 6 ID X 51.5 Inch OAL

    10 Inch Diameter Performance Muffler 6 ID / 6 ID X 51.5 Inch OAL

    PITTSBURGH POWER

    $305.99
    High Performance Muffler Increases Horsepower, Mileage & Reduces Back PressureThe Performance Muffler, measuring 10 inches by 51.5 inches and featuring a 6-inch inlet and outlet, is designed to...
    09-080200001
    SKU:
    09-080200001
    Diameter Options:
    6 Inch
    Truck Class:
    Universal
    Location:
    Made In USA
    Material Options:
    Steel
    Make:
    Universal Items
    Length Options:
    51 1/2 Inch
    Product Type:
    Exhaust
    $305.99
    Qty in Cart: 0
    Price:
    $305.99
    Subtotal:
  • BESTfit 10 Inch Diameter High Flow Muffler Type 1 51 Inch OAL

    BESTfit 10 Inch Diameter High Flow Muffler Type 1 51 Inch OAL

    BESTFIT TRUCK PARTS

    $534.99
    10 Inch Diameter Replacement MufflerThis high flow replacement muffler works with all engines and is designed to replace 10-inch diameter stock mufflers. It runs as quietly as your stock muffler...
    09-080200
    SKU:
    09-080200
    Truck Class:
    Universal
    Diameter Options:
    5 Inch
    Make:
    Universal Items
    Product Type:
    Exhaust
    Length Options:
    44 1/2 Inch
    Material Options:
    Aluminized Steel
    Ready To Ship:
    Yes
    $534.99
    Qty in Cart: 0
    Price:
    $534.99
    Subtotal:
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Adding your products to cart

The Peterbilt 367 DPF & Mufflers product lineup offers a comprehensive selection of high-quality replacement parts for Peterbilt 367 semi-trucks. This includes a wide range of mufflers, exhaust components, and diesel particulate filters (DPFs) to help keep your Peterbilt's exhaust system running smoothly and efficiently. With options from trusted brands like BESTfit, you can find the perfect fit for your truck's needs, whether you're looking for a performance-enhancing muffler, a quieter exhaust system, or a reliable DPF replacement. These parts are designed to provide superior flow and reduce back pressure, improving your Peterbilt's power and fuel economy. Plus, with a focus on durable, corrosion-resistant construction, you can expect long-lasting performance from these high-quality components. Keep your Peterbilt 367 running at its best with the parts in this comprehensive product lineup.

Frequently Asked Questions About Peterbilt 367 DPF & Mufflers

Will this DPF or muffler fit my Peterbilt 367 without modification?

Fitment depends on your truck's engine make and model, chassis configuration, and the specific emissions system installed at the factory. Peterbilt 367 trucks were built with different engine options over the years, so it's important to check the part number, engine model, and mounting dimensions against your truck's specs before ordering. If you're unsure, our sales team can help confirm compatibility using your VIN or engine serial number.

Are these DPF units and mufflers EPA/DOT compliant?

Most diesel particulate filters and exhaust components sold for on-road use are designed to meet applicable EPA and DOT emissions standards. However, compliance can vary by manufacturer, part design, and whether the unit is OEM or aftermarket. Always verify the compliance documentation for the specific part you're purchasing, especially if your truck is subject to state or federal emissions inspections.

What's the difference between a new, remanufactured, and OEM DPF?

A new DPF is manufactured from scratch and typically comes with the longest warranty. A remanufactured DPF has been cleaned, inspected, and rebuilt to restore function at a lower cost than new. OEM parts are made by or for Peterbilt to original specifications, while aftermarket parts are produced by third-party manufacturers and may offer a more budget-friendly alternative. Each option has tradeoffs in cost, lead time, and expected service life.

How do I know if my DPF needs to be replaced versus cleaned?

Common signs that a DPF may need attention include increased backpressure, reduced fuel economy, frequent regeneration cycles, or active fault codes related to exhaust restriction. In many cases, a clogged filter can be professionally cleaned rather than replaced, which is often more cost-effective. If the filter has physical cracks, melted substrate, or repeated failures after cleaning, replacement is usually the better long-term solution.

Can I install a replacement muffler or DPF myself, or do I need a professional?

Basic muffler replacement is often manageable for someone comfortable with exhaust system work and the right tools, including proper jack stands and exhaust clamps. DPF replacement or service is more involved, since it may require resetting soot load sensors, clearing fault codes, or recalibrating the aftertreatment system. If you're not experienced with diesel aftertreatment systems, we recommend having the installation performed by a qualified diesel technician to avoid triggering check engine lights or derates.


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