I buy the kit on Friday its OEM 5001594 which appears to be correct for a 1979 Evinrude 115. <br /><br />I pull the old pump out and its got two pipes coming out of its top housing and the new one only has one. Also the impeller on the old one has a rectangle key slot in it the new one is nothing like that its more of a half moon. . .<br /><br />Is this simply the new style and will work fine or is something wrong here. . . <br /><br />Our boat shops here are closed on tonight and Sunday and Id really like to get this done in the next 24 hours. Ive been waiting a week for time to take it apart and get it fixed. <br /><br />I can send pictures if this would help. I really need some advice here.<br /><br />Thanks in advance.