IAC Motor Mercruiser 805224A1 

IAC Motor
Replaces: Mercuiser 805224A1
Fits: MCM / MIE GM V6 & 305,350,454,502 EFI

An IAC (idle air control) motor is designed to adjust the engine idle RPM speed by opening and closing an air bypass passage inside the throttle body. The PCM (powertrain control module) receives information from various sensors and will output signals to adjust the idle air control motor in or out to adjust engine idle speed by controlling engine idle air.