Ford Prefect Wiring Diagram Ford Prefect Wiring Diagram. Updated: May 2021 | Category: Diagrams Ford Prefect Wiring Diagram. Note for the 'New' Ford Prefect. 1960 as per original Ford service bulletin manual. Ford Prefect Wiring Diagram Related Content Read About: Our Wiring Diagram Archive View Guide: How to Read Wiring Diagrams Related Diagrams Ford Anglia Wiring Diagram Wiring Diagrams Home