DESIGNED TO FIT. BUILT TO LAST.
DuraFit DPFs and DOCs for Class 7 and 8 Vehicles.
MORE HAULS
DuraFit Units Come with Gaskets, Clamps & Hardware, So Your Equipment Gets Back To Work Faster.
LESS STALLS
DuraFit Units Meet or Exceed All Emission Compliance Requirements, Keeping Your Mind on the Loads and Roads.

Providing a trusted, single-source supplier of durable, high-quality underbody replacement parts.
durable units with warranty to match.
DuraFit™ is dedicated to providing you with replacement Diesel Particulate Filters (DPFs) and Diesel Oxidation Catalysts (DOCs) that provide exceptional durability and service life.
3-year warranty
DuraFit DPFs and DOCs are so durable they come with a nationwide 3-year, unlimited mileage warranty.