Description
CDI Switch switch box / power pack replacement for Mercury/Mariner and Force 3‑ and 6‑cylinder outboards (1976-2000), restoring consistent spark and reliable starting.
- Brand new CDI / Power Pack Unit – unused, marine‑rated replacement.
- OEM compatible – replaces Mercury/Mariner part numbers 332‑5524, 332‑5524A1, 332‑7778, 332‑7778A1, 332‑7778A3, 332‑7778A5, 332‑7778A6, 332‑7778A9, 332‑7778A12, 332‑7778A14 and CDI 114‑7778; Mallory 9‑25100; Sierra 18‑5775; REC 300‑01852.
- Direct plug‑and‑play replacement – disconnect the battery before installation; ensure connectors and grounds are clean for best results.
- Mercury/Mariner 3‑cyl compatible fits and serial ranges: 50HP (1986-1990) Electric Start, Serial 0A912478-0D000749
- Mercury/Mariner 6‑cyl compatible fits and serial ranges: 90HP (1979-1986) Inline‑6, Serial 5290000-0G840500
- Force compatibility on select 70HP and 90HP models – verify fit with your engine serial number before ordering.
- Performance and durability – engineered to meet or exceed OEM ignition timing and spark delivery for reliable starts and smoother running.
If you need help confirming fit, contact us with your engine serial number before ordering.
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