Arco Starting & Charging 20810 Mercruiser Alternator 12V 70 Amp

The Arco Starting & Charging 20810 is a high-quality 12-volt, 70-amp alternator designed as a direct replacement for select Mercruiser 3.0L marine engines. This alternator features an internal cooling fan for reliable performance and comes complete with a single groove pulley for easy installation.

Key Features:

• 12-volt output with 70-amp charging capacity
• Internal fan design for efficient cooling
• Includes single groove pulley
• Direct fit replacement for Mercruiser 3.0L applications
• Premium marine-grade construction for saltwater durability

Replaces OEM Part Numbers:

• Mercury: 862030T, 862030T01
• Quicksilver: 862030T01, 862031T
• Sierra: 18-5983

Arco marine alternators are engineered specifically for the harsh marine environment, providing dependable charging performance to keep your batteries charged and electrical systems running smoothly.