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Medium & Heavy-Duty Commercial Vehicles

RELIABILITY and UPTIME determine value…and success for your business.

Parts You Need

Whether you’re looking for the best replacement emission system, muffler, piping or accessories, AP Emissions has the aftermarket parts you need to keep your fleet or heavy-duty vehicle performing at its peak day after day.

We offer industry-leading diesel particulate filters (DPF) and diesel oxidation catalyst (DOC) units that are built to fit and manufactured for quality and durability that extends vehicle service life. That means less time in the shop, more time on the road. AP Emissions has developed processes that enable us to engineer performance and reliability into every product we bring to market.

Our replacement diesel exhaust and emission products comply with all applicable U.S. EPA, U.S. Forestry Department and U.S. Agricultural Department requirements – providing equivalent or improved emissions control performance versus OEM units when properly installed in diesel equipment.*

That is one reason why we are the go-to provider for technicians who keep heavy duty trucks rolling and delivery vehicles at your doorstep.

*Certain emission control parts are not legal for sale or use in California or areas requiring compliance with California emissions regulations. Ask your DuraFit or DieselTech dealer for more details or contact us.

Markets & Brands


Automotive & Light Duty Trucks

AP Emissions Technologies gets it right, the first time, and every time.

Medium & Heavy-Duty Commercial Vehicles

Reliability and uptime determine value...and success for your business.


Power, sound and appearance . . . The choice is yours

Catalyst Technologies

Catalyst Solutions For Your Specific Application Long-lasting performance and emissions compliance.


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Discover how AP Emissions is leading the way in innovation and becoming an industry leader.


AP Emissions Technologies is committed to greener, energy efficient methods. That is why AP Emissions is a CLEAN ENERGY MANUFACTURER.