New 12V 70A Alternator Fits Mercruiser Black Scorpion 863077-1 863077T 8630771

⚠️ 12 VOLT 70 AMP, SIX GROOVE SERPENTINE, INTERNAL REG:
• This is the 70 AMP build, the original output on these engines
• The regulator is INTERNAL and the fan is INTERNAL
• The pulley is SIX groove serpentine, solid, 55.7 mm across
• The mount has THREE ears, one threaded and two plain
• Count the grooves and the ears before you order

MERCRUISER 5.7L, GM 350 CID V8:
• MerCruiser 350 Mag MPI Gen Plus, 1999, serial OM310000 and up
• MerCruiser 350 Mag MPI Alpha and Bravo, 1998 to 2001
• MerCruiser 350 Mag MPI Hor Alpha and Bravo, 2001
• MerCruiser 350 Mag MPI Horizon, 1999, serial OM310000 and up
• MerCruiser 350 Mag MPI Ski Gen Plus, 1998
• MerCruiser 5.7L MIE, 1999, serial 0L677227 and up
• MerCruiser 5.7L EFI Gen Plus, 1998 to 2001
• MerCruiser 5.7L EFI Gen Plus MIE, 1997
• MerCruiser 5.7L Carb Alpha and Bravo, 2002
• MerCruiser 5.7L 2 BBL Gen Plus, 1998 to 2002

MERCRUISER 5.0L, GM 305 CID V8:
• MerCruiser 5.0L Carb Alpha and Bravo, 2002
• MerCruiser 5.0L MPI Alpha and Bravo, 2001
• MerCruiser 5.0L EFI Gen Plus, 1999 to 2001
• MerCruiser 5.0L 2 BBL Gen Plus, 1998 to 2002

MERCRUISER 4.3L, GM 262 CID V6:
• MerCruiser 4.3L Carb Alpha and Bravo, 2002
• MerCruiser 4.3L MFI Alpha and Bravo, 2002
• MerCruiser 4.3L MPI, 2001 to 2002
• MerCruiser 4.3L EFI Gen Plus TBI, 1998 to 2001
• MerCruiser 4.3L EFI, 1999
• MerCruiser 4.3L Gen Plus, 1998
• MerCruiser 4.3LH Gen Plus 4 BBL, 1998
• MerCruiser 4.5L V6

MERCRUISER 8.1L, GM 496 CID V8:
• MerCruiser 496 Mag, 2001
• MerCruiser 496 Mag HO, 2001
• MerCruiser 8.1S HO, 2001
• MerCruiser 8.1S Horizon, 2001

MERCRUISER 8.2L, GM 502 CID V8:
• MerCruiser 500 EFI, 2000 to 2002
• MerCruiser 525 EFI, 2000 to 2002
• MerCruiser 600SCI, 2002
• MerCruiser 662SCI, 2002
• MerCruiser 700SCI, 2002
• MerCruiser 502 Mag MPI Gen VI, 1998
• MerCruiser 8.2L MIE MPI LH Gen VI, 2000

MERCRUISER 7.4L, GM 454 CID V8:
• MerCruiser 454 Mag Bravo MPI Gen VI, 2000
• MerCruiser 454 Mag MPI Gen VI, 2001
• MerCruiser 454 Mag MPI Horizon Gen VI, 1998
• MerCruiser 454 Mag MPI Horizon, 2001
• MerCruiser 7.4L MIE MPI L29 Gen VI, 1998 to 2000
• MerCruiser 7.4LX MPI Gen VI L29, 1998 to 2000

MERCRUISER 6.2L, GM 377 CID V8:
• MerCruiser MX 6.2L MPI, 2000, serial OM320025 and up
• MerCruiser MX 6.2L MPI Horizon, 2000, serial OM320025 and up
• MerCruiser MX MPI, 2001, serial 0M310100 and up
• MerCruiser MX MPI Horizon, 2001, serial 0M310100 and up
• MerCruiser 377 Scorpion and 377 Scorpion HO EC

MERCRUISER SKI ENGINES:
• MerCruiser Black Scorpion Ski Gen Plus, 5.7L, 1997
• MerCruiser 5.7L Ski Carb, 1998
• MerCruiser 5.7L Ski Gen Plus, 1998
• MerCruiser 350 Mag MPI Ski Gen Plus, 1998
• MerCruiser MX 6.2L BS MPI Ski and MX BS MPI Ski, 2001

TWO CORRECTIONS TO THE COMMON SPEC BLOCK:
• Many listings say the regulator is EXTERNAL, it is INTERNAL
• Many listings leave the groove count blank or say internal
• Delco, ARCO and the rebuilders all list SIX serpentine grooves
• An external regulator unit wires differently and will not do

HOW TO VERIFY FIT:
• Count the pulley grooves, this unit has SIX
• The pulley is solid serpentine, 2.193 in / 55.7 mm across
• Count the mounting ears, this unit has THREE
• Ear 1 is M8-1.25 threaded, ears 2 and 3 are 8.4 mm plain
• The B+ stud is M6-1.0 with spade S and L terminals

DO NOT ORDER IF:
• Your old unit uses an EXTERNAL regulator
• Your pulley has ONE or TWO V grooves instead of six
• Your pulley measures 2.44 in, that is the 19020609 unit
• Your old unit has only TWO mounting ears
• Your engine is 24 volt, this unit is 12 volt

CROSS REFERENCE:
• Delco 19020611, 19020612, 19020601
• Mercury Marine 219290, 863077-1, 8630771, 863077T
• Mercury Marine 863077R01, 889463R1, 889463R01, 807653R1
• Prestolite 20115018TBA
• Pleasurecraft RA097007
• ARCO Marine 20815
• Sierra Marine 18-6298, 186298
• PIC 240-6320, 240-6321
• Protorque PH300-0035
• Wilson 90-01-4425, 70-01-8461
• Mallory 9-19111, Lucas LRA03057, MES 3205M, Remy RA00108