This ATG19405 aftermarket alternator is designed for compatibility with select 75–115 horsepower outboard motors manufactured between 2001 and 2011.It replaces part numbers 50-897755T, 897755T, 8M0063970, 8400080, ADR0313, 4-6840, 400-12367, and 8488.The unit features a Delco-style design, operates at 12 volts, delivers 50 amps of output, and uses a 4PK belt.This replacement alternator is intended to restore standard functionality in compatible marine engines.