High Performance Diesel Emission Products
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Aftermarket DOC


Skyline Aftermarket Diesel Oxidation Catalysts - Available for a wide variety of 2007 and later 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 catalyst. Our Exact-Fit™ approach makes installation fast and easy without cutting or welding to get you back on the road.