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Peterbilt Exhaust Parts

Peterbilt Exhaust Parts

Upgrade your big rig with premium Peterbilt exhaust systems from 4 State Trucks. Our extensive collection of Peterbilt semi truck exhaust components delivers the perfect blend of performance and style. From chrome stacks to high-flow mufflers, we offer everything to enhance your Peterbilt exhaust setup. Improve fuel efficiency, reduce backpressure, and turn heads with our top-quality Peterbilt exhaust solutions. Whether you're after a subtle upgrade or a complete custom overhaul, 4 State Trucks has the Peterbilt exhaust options to make your truck rumble with power and pride on the open road.
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  • Heavy Duty Diesel Oxidation Catalyst Replaces 2888250NX For Cummins ISX 15.0L

    Heavy Duty Diesel Oxidation Catalyst Replaces 2888250NX For Cummins ISX 15.0L

    DAYTON / DORMAN

    $2,744.99
    Heavy Duty Diesel Oxidation CatalystRevitalize your Cummins ISX 15.0L's emissions system with the Heavy Duty Diesel Oxidation Catalyst, a replacement for OE number 2888250NX. This comprehensive kit includes a diesel oxidation filter and two gaskets,...
    29-0809025
    SKU:
    29-0809025
    Truck Class:
    Heavy Duty
    Make:
    Peterbilt
    Make:
    Kenworth
    Product Type:
    Exhaust
    $2,744.99
    Qty in Cart: 0
    Price:
    $2,744.99
    Subtotal:
  • Heavy Duty Diesel Oxidation Catalyst Replaces 2888262NX For Cummins ISX 15.0L

    Heavy Duty Diesel Oxidation Catalyst Replaces 2888262NX For Cummins ISX 15.0L

    DAYTON / DORMAN

    $2,714.99
    Heavy Duty Diesel Oxidation CatalystKeep your heavy-duty diesel engine running clean with the Diesel Oxidation Catalyst, tailored for the Cummins ISX 15.0L and a replacement for OE number 2888262NX. This essential emissions control component includes a...
    29-0809024
    SKU:
    29-0809024
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Make:
    Peterbilt
    Product Type:
    Exhaust
    $2,714.99
    Qty in Cart: 0
    Price:
    $2,714.99
    Subtotal:
  • Diesel Oxidation Catalyst Replaces 2888247NX For Cummins ISX 15.0L

    Diesel Oxidation Catalyst Replaces 2888247NX For Cummins ISX 15.0L

    DAYTON / DORMAN

    $2,957.99
    Heavy Duty Diesel Oxidation Catalyst - Replaces 2888247NX, 4965304NX & A035W856This diesel oxidation catalyst is designed to match the fit and function of the original catalyst on specified vehicles, and is engineered for durability and reliable...
    29-0809023
    SKU:
    29-0809023
    Truck Class:
    Heavy Duty
    Make:
    Peterbilt
    Make:
    Kenworth
    Diameter Options:
    13 Inch
    Product Type:
    Exhaust
    $2,957.99
    Qty in Cart: 0
    Price:
    $2,957.99
    Subtotal:
  • Diesel Particulate Filter (DPF) Replaces 2510616C91 For Cummins ISX 15.0L Engine

    Diesel Particulate Filter (DPF) Replaces 2510616C91 For Cummins ISX 15.0L Engine

    DAYTON / DORMAN

    $2,938.99
    Heavy Duty Diesel Particulate Fitler - Replaces 2510616C91 & 5295609NXThis diesel oxidation catalyst is made to fit and work just like the original catalyst on certain vehicles. It's built to last and perform well. It directly replaces the original...
    29-0809022
    SKU:
    29-0809022
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Make:
    Kenworth
    Make:
    Peterbilt
    Diameter Options:
    13 Inch
    Product Type:
    Exhaust
    $2,938.99
    Qty in Cart: 0
    Price:
    $2,938.99
    Subtotal:
  • Heavy Duty Diesel Oxidation Catalyst Replaces 2888248 For Cummins ISX 15.0L Engines

    Heavy Duty Diesel Oxidation Catalyst Replaces 2888248 For Cummins ISX 15.0L Engines

    DAYTON / DORMAN

    $2,746.99
    8.25 X 13.25 Inch Heavy Duty Diesel Oxidation Catalyst - Replaces 2888248, 4965225NX & A030W857Match the fit and function of the original diesel oxidation catalyst with this reliable replacement. Built to restore functionality after a corroded part...
    29-0809021
    SKU:
    29-0809021
    Truck Class:
    Heavy Duty
    Make:
    Peterbilt
    Make:
    Kenworth
    Diameter Options:
    13 Inch
    Length Options:
    8 1/4 Inch
    Product Type:
    Exhaust
    $2,746.99
    Qty in Cart: 0
    Price:
    $2,746.99
    Subtotal:
  • 8.25 X 13.38 Inch Heavy Duty Diesel Oxidation Catalyst For Cummins ISX 15.0L Engines - Replaces 2888249NX

    8.25 X 13.38 Inch Heavy Duty Diesel Oxidation Catalyst For Cummins ISX 15.0L Engines - Replaces 2888249NX

    DAYTON / DORMAN

    $2,655.99
    Heavy Duty Diesel Oxidation Catalyst - Replaces 4965317NX, 4969542NX & A030W858* High Quality Diesel Oxidation Catalyst* For Trucks Equipped With Cummins Isx 15.0 Liter* 8.25 Inch Length * 13.38 Inch Diameter* Includes: - 1 Diesel Oxidation...
    29-0809020
    SKU:
    29-0809020
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Make:
    Peterbilt
    Length Options:
    8 1/4 Inch
    Product Type:
    Exhaust
    $2,655.99
    Qty in Cart: 0
    Price:
    $2,655.99
    Subtotal:
  • Heavy Duty Diesel Particulate Filter (DPF) Replaces 2871581NX, Q629477 For Cummins Engine

    Heavy Duty Diesel Particulate Filter (DPF) Replaces 2871581NX, Q629477 For Cummins Engine

    DAYTON / DORMAN

    $2,653.99
    Heavy Duty Diesel Particulate Filter 15.4 X 21 InchThe Diesel Particulate Filter (DPF) plays a vital role in diesel trucks by optimizing engine performance and reducing harmful emissions. These Dorman DPF units effectively remove diesel particulate...
    29-0809019
    SKU:
    29-0809019
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Make:
    Peterbilt
    Make:
    Kenworth
    Product Type:
    Exhaust
    $2,653.99
    Qty in Cart: 0
    Price:
    $2,653.99
    Subtotal:
  • BESTfit DPF Filter  2880169NX, 4965244NX For Peterbilt, Kenworth, Freightliner, International, Volvo & Western Star

    BESTfit DPF Filter 2880169NX, 4965244NX For Peterbilt, Kenworth, Freightliner, International, Volvo & Western Star

    BESTFIT TRUCK PARTS

    $2,344.99
    BESTfit DS - DPF Filter* High Quality DPF Filter* This Product Cannot Be Sold Or Shipped To California Currently* Fits Many Makes And Models Of Trucks* Sold Individually* Warranty On DPF Filter Against Defects In Workmanship & Material From Date Of...
    29-0809002
    SKU:
    29-0809002
    Material Options:
    Steel
    Finish Options:
    Chrome-Plated
    Product Type:
    Exhaust
    Availability:
    Ready To Ship
    $2,344.99
    Qty in Cart: 0
    Price:
    $2,344.99
    Subtotal:
  • On Sale
    Limited Quantity Available
    BESTfit 5 X 7 Inch Half Round Heat Shield For Peterbilt & Freightliner W/ High Mount Exhaust

    BESTfit 5 X 7 Inch Half Round Heat Shield For Peterbilt & Freightliner W/ High Mount Exhaust

    BESTFIT TRUCK PARTS

    Now: $48.55
    Was: $69.35
    BESTfit Heat Shield Fits Multiple ModelsShield your exhaust with our high mount heat shield, designed for a 5-inch exhaust pipe with one inch of breathing room. Protect your system from excessive heat and ensure optimal performance.* High Quality Heat...
    29-080805
    SKU:
    29-080805
    Diameter Options:
    5 Inch
    Truck Class:
    Heavy Duty
    Length Options:
    7 Inch
    Material Options:
    Steel
    Make:
    Freightliner
    Make:
    Peterbilt
    Finish Options:
    Chrome-Plated
    Product Type:
    Exhaust
    Degree Options:
    100
    Availability:
    Ready To Ship
    Now: $48.55
    Was: $69.35
    Qty in Cart: 0
    Price:
    Now: $48.55
    Was: $69.35
    Subtotal:
  • 1-Piece Stainless Steel Diesel Particulate Filter Replaces 4965304NX, 2888247NX For Cummins ISX Engine

    1-Piece Stainless Steel Diesel Particulate Filter Replaces 4965304NX, 2888247NX For Cummins ISX Engine

    GLOBAL EMISSIONS

    $2,141.99
    1-Piece Stainless Steel Diesel Particulate Filter Fits Cummins ISX Engine* High Quality Diesel Particulate Filter* Made Of 304 Stainless Steel * Exclusive 1-Piece Canister Design For Durability* OEM Quality Clamps And Gaskets Included* Sold Individually...
    29-080600057
    SKU:
    29-080600057
    Truck Class:
    Heavy Duty
    Style Options:
    Cummins
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Product Type:
    Exhaust
    $2,141.99
    Qty in Cart: 0
    Price:
    $2,141.99
    Subtotal:
  • 1-Piece Stainless Steel Diesel Particulate Filter Replaces 1827310PEX For Cummins ISX Engine

    1-Piece Stainless Steel Diesel Particulate Filter Replaces 1827310PEX For Cummins ISX Engine

    GLOBAL EMISSIONS

    $2,021.99
    1-Piece Stainless Steel Diesel Particulate Filter Fits Cummins ISX Engine* High Quality Diesel Particulate Filter* Made Of Stainless Steel * Exclusive 1-Piece Canister Design For Durability* OEM Quality Clamps And Gaskets Included* Sold Individually *...
    29-080600026
    SKU:
    29-080600026
    Truck Class:
    Heavy Duty
    Style Options:
    Cummins
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Product Type:
    Exhaust
    $2,021.99
    Qty in Cart: 0
    Price:
    $2,021.99
    Subtotal:
  • 1-Piece Stainless Steel Diesel Particulate Filter Replaces 2871578 For Cummins ISX Engine

    1-Piece Stainless Steel Diesel Particulate Filter Replaces 2871578 For Cummins ISX Engine

    GLOBAL EMISSIONS

    $2,029.99
    1-Piece Stainless Steel Diesel Particulate Filter Fits Cummins ISX Engine* High Quality Diesel Particulate Filter* Made Of Stainless Steel * Exclusive 1-Piece Canister Design For Durability* OEM Quality Clamps And Gaskets Included* Sold Individually *...
    29-080600025
    SKU:
    29-080600025
    Truck Class:
    Heavy Duty
    Style Options:
    Cummins
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Product Type:
    Exhaust
    $2,029.99
    Qty in Cart: 0
    Price:
    $2,029.99
    Subtotal:
  • 1-Piece Stainless Steel Diesel Particulate Filter Replaces 4965227 For Cummins ISB/PX6 Engines

    1-Piece Stainless Steel Diesel Particulate Filter Replaces 4965227 For Cummins ISB/PX6 Engines

    GLOBAL EMISSIONS

    $1,356.99
    1-Piece Stainless Steel Diesel Particulate Filter Fits Cummins ISB & PX6 Engines* High Quality Diesel Particulate Filter* Made Of Stainless Steel * Exclusive 1-Piece Canister Design For Durability* OEM Quality Clamps And Gaskets Included* Sold...
    29-080600024
    SKU:
    29-080600024
    Truck Class:
    Heavy Duty
    Style Options:
    Cummins
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Product Type:
    Exhaust
    $1,356.99
    Qty in Cart: 0
    Price:
    $1,356.99
    Subtotal:
  • Stainless Steel Diesel Particulate Filter Replaces 4969838NX, 4965286NX For Cummins/PACCAR ISC, PX8 Engines

    Stainless Steel Diesel Particulate Filter Replaces 4969838NX, 4965286NX For Cummins/PACCAR ISC, PX8 Engines

    GLOBAL EMISSIONS

    $1,625.99
    Stainless Steel Diesel Particulate Filter Fits Cummins/PACCAR ISC & PX8 Engines* High Quality Diesel Particulate Filter* Made Of Stainless Steel * OEM Quality Clamps And Gaskets Included* Sold Individually * Warranty On Diesel Particulate Filter Against...
    29-080600023
    SKU:
    29-080600023
    Truck Class:
    Heavy Duty
    Style Options:
    Cummins
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Product Type:
    Exhaust
    $1,625.99
    Qty in Cart: 0
    Price:
    $1,625.99
    Subtotal:
  • Stainless Steel Diesel Particulate Filter Replaces 290-0045, 301-7856, 10R-6088 For Caterpillar C13, C15 Engines

    Stainless Steel Diesel Particulate Filter Replaces 290-0045, 301-7856, 10R-6088 For Caterpillar C13, C15 Engines

    GLOBAL EMISSIONS

    $4,114.99
    Stainless Steel Diesel Particulate Filter Fits Caterpillar C13 & C15 Engines* High Quality Diesel Particulate Filter* Made Of Stainless Steel * OEM Quality Clamps And Gaskets Included* Sold Individually * Warranty On Diesel Particulate Filter Against...
    29-080600021
    SKU:
    29-080600021
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Product Type:
    Exhaust
    $4,114.99
    Qty in Cart: 0
    Price:
    $4,114.99
    Subtotal:
  • Heavy Duty Diesel Oxidation Catalyst - Replaces 4965284NX, 5287496NX, A035H295

    Heavy Duty Diesel Oxidation Catalyst - Replaces 4965284NX, 5287496NX, A035H295

    DAYTON / DORMAN

    $2,368.99
    Heavy Duty Diesel Oxidation Catalyst* High Quality Diesel Oxidation Catalyst* Color: Natural* Grade Type: Regular* Package Contents:  - 1 Diesel Oxidation Filter - 2 Gaskets* Sold Individually** Warranty On Diesel Oxidation Catalysts Against...
    29-080600009
    SKU:
    29-080600009
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Make:
    Peterbilt
    Product Type:
    Exhaust
    $2,368.99
    Qty in Cart: 0
    Price:
    $2,368.99
    Subtotal:
  • 20 X 13.9 X 17 Inch Heavy Duty Diesel Particulate Filter - Replaces 4965229, 4965286, 4965286NX, 4969838

    20 X 13.9 X 17 Inch Heavy Duty Diesel Particulate Filter - Replaces 4965229, 4965286, 4965286NX, 4969838

    DAYTON / DORMAN

    $2,211.99
    Heavy Duty DPF - Replaces 4969838NX, 4969839, 4969839NX, Q621371, Q623316 & Q623804* High Quality DPF* Body Height: 20 Inch* Body Length: 13.9 Inch* Body Material: Stainless Steel* Body Width: 17 Inch* Grade Type: Standard* Inlet Gasket Included: Yes*...
    29-080600008
    SKU:
    29-080600008
    Truck Class:
    Heavy Duty
    Material Options:
    Stainless Steel
    Make:
    Peterbilt
    Make:
    Kenworth
    Product Type:
    Exhaust
    $2,211.99
    Qty in Cart: 0
    Price:
    $2,211.99
    Subtotal:
  • Outlet Nox Nitrogen Oxide Exhaust Sensor Connector Replaces 2894946NX For Cummins ISL

    Outlet Nox Nitrogen Oxide Exhaust Sensor Connector Replaces 2894946NX For Cummins ISL

    DAYTON / DORMAN

    $358.99
    Nitrogen Oxide Exhaust Sensor ConnectorThe nitrogen oxide (NOx) exhaust sensor features a grey, oval-shaped female connector and four male blade terminals. It is equipped with 22-gauge wires measuring 920mm in length. The OE number for this sensor is...
    29-080600007
    SKU:
    29-080600007
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Make:
    Peterbilt
    Product Type:
    Exhaust
    $358.99
    Qty in Cart: 0
    Price:
    $358.99
    Subtotal:
  • DPF Differential Pressure Sensor - Replaces 2596655C1, 4921730

    DPF Differential Pressure Sensor - Replaces 2596655C1, 4921730

    DAYTON / DORMAN

    $199.99
    DPF Differential Pressure Sensor* High Quality DPF Differential Pressure Sensor* Color: Black* Gender: Female* Maximum Pressure: 10 PSI* Shape: Oval* Terminal Gender: Male* Terminal Quantity: 3* Terminal Type: Blade* Sold Individually** Warranty On DPF...
    29-080600006
    SKU:
    29-080600006
    Truck Class:
    Heavy Duty
    Make:
    Peterbilt
    Make:
    Kenworth
    Product Type:
    Exhaust
    $199.99
    Qty in Cart: 0
    Price:
    $199.99
    Subtotal:
  • On Sale
    Inlet Nox Nitrogen Oxide Sensor Replaces 2871978, 2894939 For Cummins ISX Newer

    Inlet Nox Nitrogen Oxide Sensor Replaces 2871978, 2894939 For Cummins ISX Newer

    DAYTON / DORMAN

    Now: $82.47
    Was: $358.99
    Nitrogen Oxide Sensor Inlet Of Diesel Particulate Filter Replaces 2871978, 2894939, 2894939RX, 4984053, 4984576The NOx sensor for Cummins ISX 2013 and newer models features a 590mm lead and operates at 12 volts. It serves as a replacement for multiple...
    29-080600003
    SKU:
    29-080600003
    Truck Class:
    Heavy Duty
    Make:
    Kenworth
    Make:
    Peterbilt
    Availability:
    Ready To Ship
    Now: $82.47
    Was: $358.99
    Qty in Cart: 0
    Price:
    Now: $82.47
    Was: $358.99
    Subtotal:
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Peterbilt Exhaust Parts

If you drive a Peterbilt 379, 389, 378, or 359, your truck deserves more than just stock parts. Our aftermarket Peterbilt exhaust components are built to handle the demands of the open road—while giving your rig a clean, bold exterior look that commands attention.

Why Invest in Aftermarket Peterbilt Exhaust Parts?

- Boost Performance: Precision-engineered elbows, Y-pipes, and stack kits improve exhaust flow for better fuel efficiency and horsepower. - Customize Your Look: Choose from chrome or stainless steel stacks, tips, and brackets to match your rig’s personality. - Fight Corrosion: Durable, high-grade materials resist rust and road grime—keeping your setup sharp for the long haul. - Easy Upgrades: Bolt-on kits and replacement parts make installs fast, simple, and frustration-free. - Built for the Long Haul: Aftermarket parts often outlast stock components and are designed with real trucker feedback in mind.

Get a Full Exhaust System Upgrade

- Exhaust Stacks & Kits: Go with a straight cut, bull hauler, or turnout style for head-turning curb appeal. - Clamps, Brackets & Hangers: Heavy-duty fasteners that keep your system tight, quiet, and rattle-free. - Elbows & Y-Pipes: Optimize backpressure and performance where it matters most—under load. - Exhaust Tips & Accessories: Polish off your build with sleek chrome or stainless accents. - Complete Systems: All-in-one kits with everything you need for a full replacement or upgrade.

Shop for Replacement Exhaust Components Today

Expand your exhaust upgrades with related performance enhancements like new and improved Peterbilt charge air coolers or frame and chassis parts for more stable exhaust mounting. Whether you’re fixing a damaged pipe or customizing a show-ready big rig from the ground up, we’ve got the aftermarket Peterbilt exhaust parts to match your performance goals and style preferences.

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