HERE IS ONE [1] NOS GENUINE DELCO REMY VOLTAGE REGULATOR WHICH FITS AND IS CORRECT FOR ONLY THE 1966 AND THE 1967 BUICK RIVIERAS. THIS BOX HAS BEEN UNOPENED UNTIL TODAY WHEN WE TOOK THE PART OUT FOR THE PHOTO SHOOT. WE SOLD OUR LAST 67 RIV SO NOW THE SPARE PARTS CAN GO.