This pulse generator is a replacement component compatible with select motorcycles including the Sportster 1200, Road King FLHR 1200, and Custom XLC.It corresponds to OEM part numbers 32400-94 and 32400-94A.The unit detects crankshaft position and rotational speed, providing this data to the engine control unit (ECU) to help regulate fuel delivery and ignition timing.A malfunctioning pulse generator may contribute to engine misfires, stalling, hard starts, rough idling, reduced fuel efficiency, or illumination of the Check Engine Light.This replacement is built to endure typical operating conditions such as heat and vibration.It installs in the mounting location and connects to the existing wiring harness without modification.Proper installation supports accurate transmission for consistent engine behavior, aiding in smooth acceleration, stable idle, and efficient combustion.