arco marine

Arco Marine 20815 Alternator 20815_68

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Usually ships the same or next business day. In stock at our FL, NJ warehouses.
Calculated at Checkout
Stock Update:
03/23/2023 10:11:30 PM PST

Bulk discount rates

Below are the available bulk discount rates for each individual item when you purchase a certain amount

Buy 2 or above and pay only $220.86 each 220.86
Stock Update:
03/23/2023 10:11:30 PM PST


This item is brand-new, factory sealed.

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.


  • 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 at by clicking on New Warranty Program > Warranty Program Information > Register your rotating electric part for an extended year of warranty.


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Warranty Information

All Items are Brand New, Factory Sealed and come with a standard warranty. [Read our policies]
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Arco Marine 20815 Alternator 20815_68