Just to be clear these are reproductions. They are the HM-1 variation. They do not have the trademark logo above the "o"
Search ebay and my $20 each will seem cheap. 4 available and oil filter not included
I have the expansion "header" tank with the very bottom engine purge hose fitting (B in photo). With my mechanical water pump with having a pump to intake bypass hose. Is it necessary to use the engine vent component? If no, to I simply cap the tank nipple?. If yes, where is the fitting...