ARCO Replacement Alternator for Mercury 75-115 HP

Description

The ARCO Replacement Alternator for Mercury 75-115 HP outboards provides a 12V, 50A charging replacement for compatible Mercury engines. It is supplied with a four-groove pulley and internal fan so the unit can replace the original alternator without requiring the installer to transfer those major components from the failed assembly.

ARCO engineers its replacement alternators for performance and reliability, with precision manufacturing intended to match the fit and charging requirements of the original equipment. Each alternator must meet or exceed OEM performance before it is boxed for sale.

This model is intended for Mercury outboard engines in the 75 to 115 horsepower range. Listed replacement numbers include Mercury 8M0063970 and 897755T plus EMP 4-6840. Checking the original alternator number and engine application before installation helps confirm proper fitment.

When properly installed, ARCO warrants the alternator against defects in materials and workmanship for 12 months in leisure use and 90 days in commercial or racing service. Eligible rotating-electric ARCO products can receive an additional year of warranty when registered with ARCO within 30 days of purchase.

For Mercury owners replacing a failed factory charging unit, this 50A alternator provides a purpose-built marine replacement with pulley, fan, and documented OEM cross-reference coverage. We carry more in our marine alternators.