Beefed-Up Marine Alternator Replacement 12V 50 Amp With Internal Regulator And Fan For Mariner And Mercury Marine Engines Fits Carbureted And EFI Models From 1994 Through 2000 Replaces 101211-3020 101211-3021 821663 821663-1 821663-A1 12358
✔️ Internal regulator and fan, 12V, 50A, fits carb and EFI variants
This marine alternator replacement is designed for 12V electrical systems on Mariner and Mercury Marine engines, covering carbureted and EFI setups from 1994 through 2000. It replaces OEM numbers including 101211-3020, 101211-3021, 821663, 821663-1, 821663-A1, and 12358. It features an internal regulator and fan and is backed by a one-year warranty.
✅ 12V 50A output
✅ Internal regulator and internal fan
✅ CW 1V pulley
✅ Fits Mariner & Mercury Marine carbureted and EFI models (1994-2000)
✅ Replaces OEM numbers 101211-3020, 101211-3021, 821663, 821663-1, 821663-A1, 12358
✅ Meets or exceeds OEM specifications
✅ One-year warranty
💡 What is a marine alternator replacement used for in boat electrical charging systems? This handy device helps keep batteries charged and power available during trips.
- marine alternator replacement for boat charging systems maintains battery health and prevents power loss
- 12V 50A output suitable for Mariner and Mercury EFI and carbureted engines
- compatibility with OEM numbers 101211-3020 101211-3021 821663 821663-1 821663-A1 12358
- internal regulator and fan improve cooling and reliability on long trips