ARCO Marine Premium Replacement Alternator with Single-Groove Pulley - 12V, 70A for Mercruiser 3.0L (Part #20810)

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

Replacement alternator that will fit Mercruiser 3.0L, 1999-Up, 12 Volt, 70 AMP, Internal Fan, 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 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:

• DELCO Alternator 19020600
• DELCO Alternator 19020604
• MERCURY Alternator 862030T
• MERCURY Alternator 862030T01
• SIERRA Alternator 18-5983
• PROTORQUE Alternator PH300-0033
• PROTORQUE Alternator PH300-0034
• MPPARTS Alternator ADR0317
• MPPARTS Alternator ADR0299
• QUICKSILVER Alternator 862030T01
• QUICKSILVER Alternator 862031T

The ARCO Marine Premium Replacement Alternator with Single-Groove Pulley is designed to deliver reliable power for your marine engine. Compatible with Mercruiser 3.0L models from 1999 and up, this 12-volt, 70-amp alternator features an internal fan for efficient cooling and a single-groove pulley for seamless belt integration. Crafted to meet or exceed OEM standards, this alternator ensures optimal performance and durability in demanding marine environments. Its precise engineering guarantees dependable operation, making it an ideal choice for boat owners seeking a high-quality replacement part.
Built with quality materials and rigorous manufacturing processes, the ARCO Marine alternator is tested to ensure it meets strict performance criteria. It replaces several OEM part numbers including DELCO 19020600, MERCURY 862030T, and QUICKSILVER 862031T, providing an easy upgrade for compatible engines. The product is backed by a 12-month warranty against defects in materials and workmanship for leisure use, with options to extend coverage when registered within 30 days of purchase. Proper installation is essential for optimal performance and warranty validation.
This alternator is lightweight and compact, making it simple to install and suitable for various marine applications. Whether you're replacing an aging unit or upgrading your electrical system, this alternator offers a dependable power source to keep your boat's electronics and accessories running smoothly. For any concerns or issues, contact ARCO Marine directly, as this product cannot be returned to the original purchase point. Trust ARCO Marine for high-performance, reliable marine electrical components that stand the test of time.

Features:

• Designed for performance and reliability in marine environments

• Engineered and manufactured with precision quality standards

• Meets or exceeds OEM performance specifications

• Internal fan for efficient cooling during operation

• Single-groove pulley included for seamless belt compatibility

• Replaces multiple OEM and aftermarket alternator models

• Lightweight and compact for easy installation

• Warranty: 12 months against defects for leisure use, with extended coverage available upon registration