Schematic 4.3 Mercruiser Engine Diagram
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Closed Cooling System - Mercury OEM Parts - iboats.com
Closed cooling system
![Wiring Harness(Engine) - 1998 Mercruiser 4.3L [Alpha Efi] 4231017L1](https://i2.wp.com/2020cadillac.com/wp-content/uploads/2019/02/wiring-harnessengine-1998-mercruiser-4-3l-alpha-efi-4231017l1-mercruiser-4-3-wiring-diagram.png)
