ARCO Marine Premium Replacement Alternator w/50mm Multi-Groove Pulley [20815]

ARCO Marine Premium Replacement Alternator w/50mm Multi-Groove Pulley [20815]

Replacement alternator that will fit Mercruiser 4.3L-6.2L, 12 Volt, 70 AMP, Internal Fan, 50-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/50mm Multi-Groove Pulley [20815] Product Specifications

Technical Specifications:

• Voltage – 12V

• Amperage Output – 70 Amps

• Alternator Type – Premium Replacement Marine Alternator

• Pulley Type – 50mm Multi-Groove Serpentine Pulley

• Pulley Diameter – 50mm

• Regulator Type – Internal

• Cooling – Open-air cooled

• Polarity – Negative Ground

• Rotation – Clockwise (CW)

• Housing Material – Marine-grade aluminum

• Finish – Corrosion-resistant black coating

• Mount Type – OEM-style direct replacement

• Weight – Approx. 11.0 lbs / 5.0 kg

• Water Resistance – Engineered for harsh marine environments

• Warranty – Limited manufacturer warranty

Mounting Application:

• Designed as a direct replacement for marine engines requiring a 12V, 70A alternator with a 50mm multi-groove serpentine pulley. Ideal for both inboard and outboard applications where compact size and high output are essential.

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

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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