I'm looking to put a pump on my 1982 evinrude 35hp outboard motor. A local seller has one with a model number of 27103 and it's on a 70 hp evinrude (mid 70's year). Does anyone have any information on which pumps will fit which engines? I understand that there is only one manufacturer of the pumps, but don't know who it is. I can only get the model number. If anyone knows anything that might help me I would sure appreciate it!!!