Diesel Oxidation Catalyst - DOC

Skyline Emissions specializes in the design, development, and manufacture of a complete line of aftermarket diesel oxidation catalysts filters, DOC, and related emissions critical components. Developed by an engineering team with decades of diesel emissions control experience, Skyline DOCs combine Exact-Fit™ design with exceptional quality and extensive performance testing. Skyline means greater value because our design, state-of-the-art manufacturing, and testing capability have resulted in a durable DOC with extended service life. Skyline DPFs are built to last and will keep your fleet running more efficiently, with superior pollution abatement and with lower operating costs.

Our Aftermarket DOC filters - Available for a wide variety of heavy-duty and medium-duty on-highway diesel applications including: heavy-duty trucks, medium-duty trucks, school buses, motor coaches and shuttle buses. Each Skyline DOC is specifically designed as a direct replacement for the OEM filter. Our Exact-Fit™ approach makes installation fast and easy without cutting or welding to get you back on the road. Skyline DOCs are proudly designed and manufactured in the USA.

Our DOCs are new, never rebuilt, with no core required.

Skyline Links

Warranty Registration DPF and DOC Cross Reference