Outboard Jets Model R, serial number 95, with Evinrude water pump installed. The unit was installed on a 88hp Evinrude outboard, run less than twenty seconds to verify that the water pump was working properly, then later removed because an estimate to modify the jon-boat transom for the jet cost more than the boat and motor were worth. Brian O'Leary at Outboard Jets, Ph., said "Serial number 95 sold as model 60°.R3. With impeller changes, it can fit 60° R4 and 60° R6." You can view the Outboard Jets Evinrude model list at http