Dual CDI Module Switch Box For Mercury Outboard Motors 50 HP To 220 HP Replacement Power Pack With Part Numbers 332 7778 A12 332 7778 A9 332 7778 A6 332 7778 A3 332 5524 A1 332 7778 A1 332 7778 A7
✔️ Replacement part numbers: 332-7778 A12/A9/A6/A3, 332-5524 A1/A7
This dual CDI module switch box is an aftermarket power pack used to control ignition timing and CDI triggers on Mercury outboard engines. It's typically installed during service or replacement to restore proper starting and running for 50-220 HP models.
✅ Replacement numbers: 332-7778A12, 332-7778A9, 332-7778A6, 332-7778A3, 332-5524A1, 332-7778A1, 332-7778A7
✅ Fits Mercury 50-220 HP variants and related outboard models listed in fitment notes
✅ Easy replacement process: remove two mounting screws, swap in the new box, and reconnect power
✅ Check dimensions and compatibility before ordering to ensure proper fit
💡 What is a marine CDI switch box used for in outboard engines?
It’s a handy replacement that manages ignition timing and protects the electrical system in saltwater environments.
- marine cdi switch box replacements for outboard motors with 50-220 hp range - sealed electronics for marine use, designed for harsh marine environments - quick swap and wiring steps for ignition control modules on Mercury outboards - verify part numbers and compatibility before ordering to ensure fit