Window RPM Activated Switch - 8956 headers 6 V8 1963 - 1965

6 V8 1963 - 1965 Chevrolet Chevy II 283/4

9L V8 1981 Plymouth PB250   360/5

6L/V6 2014 - 2015 Ram ProMaster 1500 3

7 V6 2011 - 2020 Ford F-150 XL 302/5 V8 2011 - 2020 Ford F-150 XLT 213/3

6L/V6 2005 - 2007 Cadillac STS 3

Window RPM Activated Switch - 8956 headers 6 V8 1963 - 1965Overview: The RPM Activated Switch, PN 8950, has two activation wires; one to ground a circuit and the other to open a circuit. Simply plug in an rpm module and wire the Switch to the circuit you want to activate. When the engine rpm reaches that amount, the circuit is activated and will remain on until the rpm falls below that amount. The RPM Window Switch, PN 8956, has two rpm adjustments; one to activate a circuit, while the other deactivates the