Replacement Exhaust Parts

Quality and Durability for Your Equipment

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DPFs & DOCs for Class 7 & 8 Vehicles
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Upgraded designs, materials and extensive warranty coverage ensures your equipment works on the job longer.


Get back to work fast with exact-fit replacements that install directly onto your equipment – no modifications needed.


DieselTech™ and DuraFit™ emissions components all comply with applicable EPA regulations.

Trusted Replacement Parts for Heavy Duty Diesel Applications

DieselTech™ offers an extensive line of exact-fit replacement parts for popular heavy duty diesel applications, including diesel particulate filters (DPFs), diesel oxidation catalysts (DOCs) by DuraFit™.

  • Caterpillar
  • Cummins
  • Detroit Diesel
  • Mack / Volvo
  • Navistar / MaxxForce

All of our products are designed, tested and manufactured in the US to the most stringent industry standards – ensuring long service life in your heavy-duty diesel equipment. Download our catalog to find parts for your heavy-duty diesel application.

Durable Replacement Exhaust Parts for Diesel Pickups and Vans

DieselTech™ offers exact-fit diesel particulate filters (DPF) and diesel oxidation catalysts (DOC) systems, mufflers and other exhaust replacement parts for leading diesel pickup and van applications that include:

  • Ford Powerstroke
  • Chevrolet & GMC Duramax
  • Sprinter Vans (Dodge, Freightliner & Mercedes)
  • Dodge / RAM (Cummins)

Our DieselTech™ products are designed, tested and built in the US to the most stringent quality standards – ensuring reliability of your diesel pickup or van. Download our catalog to find parts for your particular application.

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Since 1927, AP Emissions has been a leader in exhaust and emission products – designing, testing and manufacturing to stringent standards. Like our other products, the DieselTech brand of emissions products is built on that same commitment to performance, durability and quality for our customers.

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