35700-ZZ5-003 Crank Sensor Assembly - Overview. The 35700-ZZ5-003 Crank Sensor Assembly is an essential component within Honda marine engine systems. This sensor precisely measures the rotational speed of the crankshaft, feeding critical data to the engine's control system. This function is vital for controlling ignition timing and fuel injection parameters, thus ensuring the engine runs efficiently and reliably. Designed to factory specifications, the sensor integrates seamlessly with the exist