pcolleary Posted April 20, 2014 Share Posted April 20, 2014 Please Help ID large Radiator Cap. It is 4 1/2" in diameterThanks in advance for the help Link to comment Share on other sites More sharing options...
keiser31 Posted April 20, 2014 Share Posted April 20, 2014 Looks like a Graham cap. Link to comment Share on other sites More sharing options...
pcolleary Posted April 20, 2014 Author Share Posted April 20, 2014 Thanks for the help Link to comment Share on other sites More sharing options...
Graham Man Posted April 28, 2014 Share Posted April 28, 2014 Looks like a 1929-30 Graham-Paige big six (619,621) or eight (827,837), they all used the same radiator twist lock cap. I will have to measure mine tonight but I am 90% sure. Link to comment Share on other sites More sharing options...
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