Well this is proving to be a F'in night mare!!
The part number you gave "OMC # 172543," im told is the prestolite part, the Calco is "OMC # 172847".
The OMC 172543 / 382715 = prestolite; ESZ4009, ESZ4012, ESZ4014, ETX4001 & also = API PT112N-NP-3, I dont think these fit my connections.
The Calco 172847 = API PT113N (motor only) = prestolite; EFT4003, ESQ4006, ESQ4007-1, ESQ4009S which can be replace by an API PT114-NPK (a complete assembly), a couple of places seem to have these at $620++.
The API PT114N-RP is a complete assembly, however it = OMC # 172850, 173596 (not the same as above) and = prestolite EFT4003, ESQ4006, ESQ4007-1, ESQ4009S, which are the same as above!!!!!!!!!!!!
Then there is a guy on ebay with this;
OMC 980940
Which looks very similar to a API PT114-NPK / NP-3 but he tells me "The pump number for that Calco that I get is part #172577, for the prestolite I get #172655 and I don't have either. The prestolite crosses into a Sierra Marine #18-6767-1"
The Sierra marine listing #18-6762 =[FONT=helvetica,Arial, Helvetica, sans-serif] 172543 (prestolite) but the [/FONT]#18-6767-1 =[FONT=helvetica,Arial, Helvetica, sans-serif] 172850, 173564, 173596.[/FONT] So seems he has a completlely different numbering cross reference to others!!!!!!!!!!!!!!
Johnson / evinrude / BRP cant tell me the part number for my pump so I cant confirm any of this so how the hell am I supposed to know which part I need or can interchange???
