DIAPHRAGM, Distributor Vacuum Advance, replacement, These diaphragms are now coming through with the correct fitting size to correctly match 12371-01 and 12371-01S, See also 12371-01AK
Manufacturer Reference #'s: VC-12,
As expected - fit perfect and seems to be quality made. Haven't started the motor up with it yet though.
Submited on April 13, 2019 by David L.
YES I would recommend this product.