Finish: Chrome with black knob Dorman's Window Crank Handles are made of durable metal or plastic to withstand years of use. For your convenience, we also offer Window Crank Handle Adapters-- and a full range of other repair solutions-- through our Help! Product line. Alternate/OEM Part Number(s): 20316273, 20482496 DORMAN Warranty Information Limited lifetime. Manifold with Catalytic Converter 5 years/50,000 miles. Mirror glass 12 months.