Fan spacer, measuring 1-1/4 inches, but referenced at 1-9/32" too. Application includes 1971 - 1973 Mercury Cougar and Ford Mustang with 351-2V engines and standard cooling. Reference number YA-20, cross reference to C8YE-8546-A spacer.
Ford part # D1OE-8546-AA, Ford engineering # C8YZ-8546-A.