Durafit™ - AP Exhaust Technologies Inc


Designed to Fit. Built to Last

Products designed for easy installation to reduce downtime

Dependability and uptime are the key factors in the long‐term profitability of your commercial vehicle fleet and service operation. That’s why DuraFit replacement DPFs and DOCs combine exact‐fit design for easy installation with design enhancements over many OEM and aftermarket units that improve durability to extend service life. Diesel Particulate Filters (DPF) and Oxidation Catalysts (DOC) come with required gaskets to reduce installation time and cost. And we back our quality with nationwide warranty coverage.

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DuraFit DPFs and DOCs

Diesel Particulate Filter (DPF) and Oxidation Catalysts (DOC)

Products Designed to Meet the Demands of Diesel Emissions

Easy installation to restore engine performance

Quicker service means less time off the road


  • Emission compliance for 2007 and newer models
  • Exact fit for easy installation
  • Replace damaged or contaminated particulate filters
  • Effective at removing soot particles from exhaust gases
  • Restore diesel engine performance
  • Styles for common applications
  • High-grade stainless-steel canisters resist corrosion
  • 100% new, OEM-grade substrates minimize backpressure
  • Advanced catalysts improve regeneration efficiency and extend service intervals


  • Improve operational performance
  • Included gaskets and clamps eliminate installation hassles and reduce cost
  • Ease of installation
  • Get back on the road quicker with filter replacement
  • Protected by a 3-year, unlimited mileage warranty
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