OER Parts offers a wide selection of Switches & Fuses for your 1966 Mercury Cyclone. OER Parts offers 1966 Mercury Cyclone Electrical Switches, 1966 Mercury Cyclone Flashers, 1966 Mercury Cyclone Fuse Blocks, 1966 Mercury Cyclone Fuses, 1966 Mercury Cyclone Power Distribution Boxes, and 1966 Mercury Cyclone Relays.