ARCO Marine Premium Replacement Alternator with Single Groove Pulley - 12V 70A for Marine and Utility Applications

Premium Replacement Alternator with Single Groove Pulley - 12V 70A

Replacement alternator that will fit Mercruiser, BRP-OMC, 12 Volt, 70 Amp, Self-exciting, Ignition protection screens, Internal regulator, Negative ground, 1-wire connection, 2-inch mounting foot, Single groove pulley included.

Features:

• All alternators are engineered for performance and reliability
• All alternators are engineered and manufactured with precision and quality
• All alternators must meet or exceed OEM performance before being boxed

Warranty Information:

When properly installed, all ARCO products are warrantied against defects in materials and workmanship for a period of 12 months for leisure use and 90 days for commercial or racing applications.

Add an extra year of warranty to your rotating electric ARCO product (Tilt/Trim Motors, Alternators, Outboard Starters, and Inboard Starters) when you register your product within 30 days of purchase. You can register your product by visiting arcomarine.com/product-registration

Replaces:

MERCURY 32701
MERCURY 47456A1
MERCURY 56045
MERCURY 59755
MERCURY 69729
Sierra 18-5950

The ARCO Marine Part Number 20102 premium replacement alternator is designed for marine, boat, and utility vehicle applications requiring reliable power generation. This 12-volt alternator delivers 70 amps of current, making it suitable for a variety of electrical systems that demand consistent and robust power output. Equipped with a self-exciting internal regulator and ignition protection screens, this alternator ensures safe operation and efficient performance in demanding environments. Its negative grounding and one-wire connection simplify installation, while the included 2-inch mounting foot and single groove pulley provide versatility for different setups. Built with precision engineering and high-quality materials, the ARCO Marine 20102 alternator is rigorously tested to meet or exceed OEM performance standards, ensuring longevity and dependable operation. This product is engineered to replace several Mercury models including 32701, 47456A1, 56045, 59755, and 69729, as well as Sierra 18-5950, making it a versatile choice for various marine and industrial applications. When properly installed, it is backed by a 12-month warranty against defects for leisure use, with an option to extend coverage by registering online within 30 days of purchase. Please note that this product may not be returned to the original point of purchase, and any issues should be addressed directly with the manufacturer for efficient resolution. Whether you need a reliable replacement for your boat’s electrical system or a durable alternator for other utility needs, the ARCO Marine 20102 alternator offers performance, quality, and peace of mind in a compact, easy-to-install package.

Features:

• Designed for marine, boat, and utility vehicle applications requiring reliable power

• Delivering 12V and 70A for high-demand electrical systems

• Self-exciting internal regulator with ignition protection screens for safe operation

• Negative ground and one-wire connection for easy installation

• Includes 2-inch mounting foot and single groove pulley for versatility

• Engineered and manufactured with precision to meet or exceed OEM standards

• Replaces multiple Mercury and Sierra alternator models

• Backed by a 12-month warranty against defects with optional extended coverage