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Premium Quality Arco Marine Premium Replacement Alternator W/50mm Multi-groove Pulley [20815] In Multiple Colors [b1mxOrcY]

$51.99 $166.99 -69%

Premium Replacement Alternator with 50mm Multi-Groove PulleyReplacement 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 performanc

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Premium Replacement Alternator with 50mm Multi-Groove Pulley

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

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.

Specifications:

  • Amperage: 70A
  • Voltage: 12V
  • Box Dimensions: 8"H x 8"W x 9"L WT: 8.4 lbs
  • UPC: 693006008264

Quick Guide (pdf)

What Our Customers Say

January 1, 2026

Absolutely no complaints!

This is a very good and a very, very, very smart purchase.

- Manawydan J..

January 1, 2026

Absolutely no complaints!

A very good and a very, very, very wise investment.

- Efnisien G..

January 1, 2026

Absolutely no complaints!

A very good product. I have had no problems at all with it.

- Gwydion G..

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