Volvo Penta Engine Model ID Help

[PA Matt]

I have 1995 Baha Cruisers 251 Fisherman inboard boat. When I bought it there was a crappy 5.7 aftermarket installed that had seen better days. It appears external components were reused which is standard practice such as hoses, alternator, starter, distributor etc. Last winter I installed a Michigan Motors 5.7 engine. Runs great!

 

My issue is in determining what exact model engine the boat came with so I can order things like cooling hoses etc. The only original tag I have is on the transom and the transmission, nothing from the engine. It is fuel injected so I know it was a 5.7 Gi.

 

I have searched and searched the internet and can find no diagrams that match what I have. I have ordered other components but only when there is a part number on them. The sea water and cooling hoses have nothing left visible.

 

Thanks

Matt