20815 - Arco Marine Premium 70 AMP Marine Alternator w/50mm Pulley

Premium 70 AMP Marine Alternator with 50mm Multi-Groove Pulley

This high-performance replacement alternator fits Mercruiser engines ranging from 4.3L to 6.2L. It operates at 12 Volts with a capacity of 70 AMP and includes an internal fan. The package also comes with a 50mm multi-groove serpentine pulley.

Warranty Information:

All ARCO products are guaranteed against defects in materials and workmanship for 12 months for leisure use or 90 days for commercial and racing applications, provided they are properly installed. Extend your warranty by one additional year by registering your product on arcomarine.com within 30 days of purchase.

Replaces:

DELCO Alternator 19020611
DELCO Alternator 19020612
MERCURY Alternator 863077T
PLEASURECRAFT Alternator RA097007
SIERRA Alternator 18-6298
PROTORQUE Alternator PH300-0035
MPPARTS Alternator ADR0298

The ARCO Marine Premium 70 AMP Marine Alternator, part number 20815, is a replacement component designed for specific marine engine applications. This unit is intended for IT hardware resellers supporting clients in the marine industry, or businesses requiring robust power generation for compatible equipment. It provides 12-volt operation with a 70 AMP capacity and features an internal fan for thermal management. The alternator is supplied with a 50mm multi-groove serpentine pulley, facilitating installation in systems requiring this pulley type. Engineered to meet or exceed OEM performance standards, it offers a direct replacement for several alternators, including DELCO 19020611, MERCURY 863077T, and SIERRA 18-6298. This product addresses the need for reliable power generation in marine environments, specifically for Mercruiser engines ranging from 4.3L to 6.2L.