ARCO Marine Premium Replacement Inboard Alternator w/Single Groove Pulley - 12V 55A

Upgrade your boat's electrical system with our Premium Replacement Inboard Alternator. Designed specifically for marine applications, this 12V 55A alternator ensures reliable power supply to keep your marine electronics running smoothly. Featuring a single groove pulley and precision engineering, it's the perfect replacement for OEM alternators, providing enhanced performance and durability on the water.

Key Features

• Optimized for marine performance and reliability
• Precision-engineered and manufactured with high-quality materials
• Internal regulator for stable voltage output
• Negative ground configuration for compatibility with marine electrical systems
• Includes a single groove pulley for easy installation
• 2-inch mounting foot for secure and versatile mounting options

Warranty Information

We stand behind the quality of our alternators. When properly installed, all ARCO products are warrantied against defects in materials and workmanship for:

• 12 months for leisure use
• 90 days for commercial or racing applications

Enhance your protection by adding an extra year of warranty to your rotating electric ARCO product—including Tilt/Trim Motors, Alternators, Outboard Starters, and Inboard Starters—when you register your product within 30 days of purchase. Register your product at arcomarine.com/product-registration.

Compatibility

This alternator is a direct replacement for the following OEM part numbers:

Specifications

Installation and Support

Installing your new inboard alternator is straightforward with the included single groove pulley and 2-inch mounting foot. For detailed installation instructions, refer to our Quick Guide (PDF).

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

Orders of physical products placed by 3 PM EST M-F typically ships the same day, if all requested items are in stock. Weekend orders will typically ship on Monday.

Shipping takes 2-7 days.

We currently ship to the Contiguous 48 States.

Life of Sailing merch is custom made for the customer after an order is placed. Total turnaround is typically 7-14 days from order to doorstep.