New old stock 1982-1985 GM metal gas cap for diesel engines. Early 1st design style that has never been installed or used before and it's still in great condition. It comes with its original Delco box as shown in the pictures. 22518914 81-85 Chevy / GMC pickup truck 82-85 G35-G80 82-85 B35 22518914 to 22506731