RC15 Radiator Cap GM AC 861050. Very nice original cap with deep letters. Cap looks better in person. Will look very nice on car. Check out my other caps.Back side just has a little dirt, but I cleaned it off after I took the pictures. Doesn't come with AC box. The item "^OFFERS Looks Like NOS RC15 BIG Ear Radiator Cap AC Show Car Mint" is in sale since Wednesday, January 1, 2020. This item is in the category "eBay Motors\Parts & Accessories\Vintage Car & Truck Parts\Cooling System". The seller is "widetires22" and is located in Oneonta, New York. This item can be shipped worldwide.