ARCO Marine Premium Replacement Alternator w/65mm Multi-Groove Pulley - 12V 70A [20800]

ARCO Marine Premium Replacement Alternator w/65mm Multi-Groove Pulley - 12V 70A [20800]

Replacement alternator that will fit Mercruiser 4.3L - 8.2L, 1998-Up, 12 Volt, 70 AMP, Internal Fan, 65-mm multi-groove serpentine 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

Product Specifications

ARCO Marine Premium Replacement Alternator w/65mm Multi-Groove Pulley - 12V 70A [20800] Product Specifications

Technical Specifications:

• Voltage – 12V

• Amperage Output – 70 Amps

• Alternator Type – Premium Replacement Marine Alternator

• Pulley Type – 65mm Multi-Groove Serpentine Pulley

• Pulley Diameter – 65mm

• Regulator Type – Internal

• Cooling – Open-air cooled

• Polarity – Negative Ground

• Rotation – Clockwise (CW)

• Housing Material – Marine-grade aluminum

• Finish – Black corrosion-resistant coating

• Mount Type – OEM-style direct replacement

• Weight – Approx. 11.3 lbs / 5.13 kg

• Water Resistance – Engineered for harsh marine environments

• Warranty – Limited manufacturer warranty

Mounting Application:

Designed for marine engines requiring a 12V, 70A alternator with a 65mm multi-groove pulley. Ideal for applications needing dependable charging performance and long-lasting durability in demanding saltwater or freshwater conditions.

Product Manual

Quick Guide (pdf)

Product Warranty

ARCO Marine Warranty

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:

DELCO Alternator 19020601
DELCO Alternator 19020609
MERCURY Alternator 862031T
MERCURY Alternator 862031T1
Sierra Alternator 18-6293
Protorque Alternator PH300-0034
Protorque Alternator PH300-0035
MPPARTS Alternator ADR0299
MPPARTS Alternator ADR0316

This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.

Product FAQs

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