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Mercruiser 3.0L MCM Gasoline Engine Wiring Diagrams

A – Ignition Components
1 – Distributor
2 – Ignition Coil
3 – Shift Cutout Switch

B – Starting Charging and Choke Components
1 – Alternator
2 – Electric Choke
3 – Ground Stud
4 – Starter Motor
5 – Starter Slave Solenoid

C – Audio Warning Components
1 – Water Temperature
2 – Drive Unit Gear Lube Monitor
3 – Oil Pressure Switch

D – Instrumentation Components
1 – Oil Pressure Sender
2 – Water Temperature Sender
3 – Trim Sender