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Worldwide Shipping Arco Marine Premium Replacement Outboard Alternator W/multi-groove Pulley - 12v 50a [20850] In Multiple Colors [sw9TmgZt]

$49.99 $159.99 -69%

Premium Replacement Outboard Alternator with Multi-Groove Pulley - 12V 50AReplacement alternator that will fit 1.5L & 3.0L Mercury Outboard, 12 Volt, 50 AMP, Internal Fan, Multi-groove serpentine pulley included, Includes wire/plug connector.Feat

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Premium Replacement Outboard Alternator with Multi-Groove Pulley - 12V 50A

Replacement alternator that will fit 1.5L & 3.0L Mercury Outboard, 12 Volt, 50 AMP, Internal Fan, Multi-groove serpentine pulley included, Includes wire/plug connector.

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 8600514
DELCO Alternator 19020704
DELCO Alternator 19020707
MERCURY Alternator 8M0064020
MERCURY Alternator 8M6000803
MERCURY Alternator 828506
MERCURY Alternator 875286A-1
MERCURY Alternator 881247A1
MERCURY Alternator 889956
SIERRA Alternator 18-6455
PROTORQUE Alternator PH300-0031
PROTORQUE Alternator PH200-T010
PROTORQUE Alternator PH200-T015
PROTORQUE Alternator PH200-T016
MPPARTS Alternator TRM0009
MPPARTS Alternator TRM0066

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

Specifications:

  • Amperage: 50A
  • Voltage: 12v
  • Box Dimensions: 8"H x 8"W x 9"L WT: 7.3 lbs
  • UPC: 693006008219

Quick Guide (pdf)

What Our Customers Say

December 28, 2025

Absolutely no complaints!

It performs beautifully without a single fail.

- Pwyll M..

December 28, 2025

Absolutely no complaints!

A great product. And a very, very, very, very, very great value.

- Nisien Z..

December 28, 2025

Absolutely no complaints!

It's a great item. And it is so, so, so, so useful.

- Urien W..

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