EMGO 1976 Honda CB750A Automatic CLAMP-ON AIR FILTER 39MM 12-55739. The vendor part number is 12-55739.. Read title careful to know what you are getting. Catalog decription�

• Universal fit reusable filter with chrome and caps
• Sold each - order one filter per carburetor
• It is recommended to measure your carburetor air filter mounting flange prior to ordering