ARCO Marine Catalog

For high-amp (12 Volt, 105 Amp) replacement alternator, see 60122 on Page 52. For high-amp (12 Volt, 105 Amp) replacement alternator, see 60122 on Page 52. For high-amp (12 Volt, 105 Amp) replacement alternator, see 60122 on Page 52. 20100 Fits: Many diesel engines 12 Volt, 70 Amp Self exciting internal regulator Negative ground 1-wire connection 2-inch mounting foot Single groove pulley included 20800 (NEW) Fits: Mercruiser 4.3L - 8.2L 1998-Up 12 Volt, 70 AMP Internal Fan 65-mm multi-groove serpentine pulley included 20102 Fits: Mercruiser, O.M.C. 12 Volt, 70 Amp Self exciting Ignition protection screens Internal regulator Negative ground 1-wire connection 2-inch mounting foot Single groove pulley included 20810 (NEW) Fits: Mercruiser 3.0L 1999-Up 12 Volt, 70 AMP Internal Fan Single groove pulley included 20104 Fits: Mercruiser, O.M.C. 12 Volt, 70 Amp Ignition protection screens Internal regulator Negative ground 2-wire plug 2-inch mounting foot Single groove pulley included 20815 (NEW) Fits: Mercruiser 4.3L-6.2L 12 Volt, 70 AMP Internal Fan 50-mm multi-groove serpentine pulley included 20500 Universal-mount alternator 12 Volt, 70 Amp Self exciting Ignition protection screens 1-wire connection Single groove pulley included 1-inch mounting foot For Gasoline Engines Only Not For Use On Diesel Engines 20820 (NEW) Fits: Indmar, Pleasurecraft, Crusader, and Others 12 Volt, 70 AMP Internal Fan 2-inch mounting foot 65-mm multi-groove serpentine pulley included REPLACEMENT INBOARD ALTERNATORS