Logo

Inboard Alternators (No. 20100 - 20820)

REPLACEMENT INBOARD ALTERNATORS
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
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
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
Universal-mount alternator
12 Volt, 70 AMP
Self exciting
Ignition protection screens
1-wire connection
Single groove
pulley included
1-inch mounting foot
Adaptors available for
2” and 3” mounting
configurations
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
For high-amp (12 Volt, 105 Amp)
replacement alternator, see
60122 on Page 56.
For high-amp (12 Volt, 105 Amp)
replacement alternator,
see 60122 on Page 56.
For high-amp (12 Volt, 105 Amp) replacement
alternator, see 60122 on Page 56.