ARCO Replacement Alternator for Mercury 135-150 HP

Description

The ARCO Replacement Alternator for Mercury 135-150 HP outboards provides a 12V, 55A charging replacement for compatible Mercury engines. It includes the four-groove pulley, giving installers a ready-to-fit replacement for the original alternator when charging output becomes unreliable or the factory unit fails.

ARCO engineers its replacement alternators for dependable performance and precise fitment. ARCO alternators are manufactured with a focus on quality and must meet or exceed OEM performance standards before being packaged.

This model is designed for Mercury outboard engines in the 135 and 150 horsepower range. Listed OEM replacement numbers include Mercury 8M0065239, 8M0057693, and 8M0062515. Verifying the original part number and engine application before installation is recommended to ensure correct fitment.

For properly installed products, ARCO provides a 12-month warranty against defects in materials and workmanship for leisure use and 90 days for commercial or racing applications. Eligible rotating-electric ARCO products can receive an additional year of warranty coverage when registered with ARCO within 30 days of purchase.

For owners servicing a Mercury 135 or 150 HP charging system, this 55A alternator offers a marine-specific replacement backed by documented Mercury cross references and ARCO’s OEM-performance testing approach. Take a look through our marine alternators.