Brand: Quicksilver

Manufacturer Part Number: 7778A12

Part Type: Outboard Switch Box Assembly

Material: N/A

UPC: N/A

IsDraft: True

Mercury Quicksilver 7778A12 Outboard Switch Box Assembly 2-Cycle ADI (BD6)


This item is being sold for parts or not working. It may be defective, incomplete, or have other unknown issues. Please read the full description before purchasing. For parts or repair only. No returns or warranty – this item is sold as-is. 


NOTE: This product has NOT been tested and is being sold AS-IS for parts or repair only.

  • Outboard switch box assembly for Mercury/Mariner 2-cycle outboards
  • For three and six cylinder engines with ADI (alternator driven ignition) only
  • Includes lead wires and connectors for both sides
  • Installation requires common shop tools and electronic analytical tools

Part Number:

  • 7778A12

Compatibility & Fitment:

  • Mercury and Mariner 2-cycle outboards with ADI (3 and 6 cylinder)


Letters and Numbers in ( ) is the items location and is for our reference ONLY.

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