Premium Replacement Rotor for Mercruiser Inboard Engines with Delco HEI IgnitionThis rotor fits GM-style Module in Cap Distributors with Delco HEI Ignition.Replaces:MERCRUISER Rotor 804424MERCRUISER Rotor 850485MERCRUISER Rotor 8504851MERCRUISER Rotor 898253012MERCRUISER Rotor 8M0062084VOLVO Rotor 3854311SIERRA Rotor 18-5408CDI ELECTRONICS Rotor E65-0014OMC Rotor 3854311OMC Rotor 0769694*ARCO Assurance 12-month part and labor warranty protectionThis product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.