This MSD RPM switch can perform a variety of functions, from turning on a shift-light or solenoid to engaging an MSD Timing Computer at a certain RPM.

Works with 4, 6, and 8 cylinder engines and will switch up to 1.5 amps. Includes a normally open and normally closed connection so that it will turn things OFF as well as ON at the desired RPM. Utilizes standard MSD RPM Modules (not included).

Works great with MSD, Mallory or Vertex magnetos when coupled with a magneto signal converter