65MM OUTSIDE DIAMETER
VERY GOOD QUALITY AFTER MARKET REPLACEMENT PARTS
SHOULD BE FITTED BY A PROFESSIONAL MECHANIC AS THESE ARE FRAGILE PARTS
YOU MAY NEED TO TRIM THE TAG ON THE OUTSIDE EDGE OF THE DIAPHRAGM WHEN FITTING THEM
THERES LOTS OF VIDEOS ON THE INTERNET TO SHOW YOU HOW TO FIT THEM
please check your old one is the same before you buy.
This diaphragm does not have separate part numbers. But the corresponding HONDA part numbers for the entire Diaphragm Assemblies are 16111-MM2-671 & 16111-MM2-771. So according to these numbers the diaphragms above should fit the following models
1986 CMX450C A
1986 CMX450C AC
1987 CMX450C A
1987 CMX450C AC