Waterpump for Mitsubushi diesel

[ScudderPt]

Hello to the forum, hope everyone is enjoying the beginnings of spring!

I need a waterpump for a marinised1980 Mitsubishi diesel, 6DR51A. This motor was also used in the 1980 Jeep Grand Cherokee. It has an adapter plate under it so the pump I have is not original to the motor. I haven't had much luck with phone and internet search so far so maybe somebody out there has some ideas. The engine was marinised by Simpson Power products in early 1980.

[Bob Adams]

A picture would be a big help. Here is a good place to ask:
http://boatdiesel.com/