Wiper Switch, 2 Speed with 12mm Collar: Beetle (1962-1967), T2 Bay (1968-1972), Karmann Ghia (1962-1967)Switch For Wipers. Two speed operation for versatile performance Easy to install with a 12mm collar Good Quality Reproduction Can be used with a single speed motor on an early Beetle. These are a twist operation, unlike the early version. If used on a car with single speed switch originally, this will still operate at a single speed T1 Beetle 61 7 66 Karmann Ghia 61 7 66 T2 Baywindow 68 7 72