Skyline Emissions specializes in the design, development, and manufacture of a complete line of aftermarket diesel particulate filters (DPF), and diesel oxidation catalysts (DOC), including clamps and gaskets for heavy-duty and medium-duty on-highway diesel applications including heavy-duty trucks, medium-duty trucks, school buses, motor coaches, and shuttle buses.

Developed by an engineering team with decades of diesel emissions control experience, Skyline DPFs and DOCs combine Exact-Fit™ design with exceptional quality and extensive performance testing. Skyline means greater value because our design, state-of-the-art manufacturing, rapid shipping, and testing capability have resulted in durable DOCs and DPFs with extended service life. Our wide-ranging line of DOCs and DPFs – more than 160 parts and growing – are built to last and will keep your fleet running with lower operating costs. Skyline Emissions products are sold through distributors all across the United States and Canada.