Balmar Alternator 100 AMP Kit 12V 1-2" Single Foot Spindle Mount J10 Pulley Regulator Temp Sensor

The Alternator 100 AMP Kit is a high-performance solution designed specifically for marine and boating applications. This comprehensive kit ensures reliable power generation, essential for maintaining the electrical systems of your vessel, whether you're cruising the open seas or navigating inland waterways.

Product Overview

The 621-100-J10 Alternator Kit offers a robust 100A, 12V power supply, featuring a single foot spindle mount compatible with a variety of marine engines. Engineered for durability and efficiency, this alternator kit includes all necessary components for seamless installation and optimal performance on your boat.

What's Included

• 621-100-J10 Alternator
• MC-618 Regulator
• Temperature Sensors
• Mounting Hardware

Alternator Specifications

Specification	Details
Output	100 Ampere (A)
Voltage	12 Volts (V)
Mount Type	Single Foot Spindle Mount
Pulley Size	1-2 Inches
Pulley Type	J10 Alternator Mount Serpentine Pulley
Ground	Isolated Ground

Mounting Styles

The kit supports two primary mounting styles to accommodate a wide range of marine engines:

1" Motorola-Style Mounting

• Commonly used with:
• Westerbeke Engines
• Lehman Engines
• Hino Engines
• Pathfinder Engines

2" Delco-Style Mounting

• Commonly used with:
• Volvo Penta (Gas & Diesel)
• John Deere Engines
• Perkins Engines
• Mercruiser Engines
• Pleasurecraft Engines
• Crusader Engines
• Indmar Engines
• Marine Power Engines
• Other GM-based Engines

Engine Compatibility

This alternator kit is versatile and compatible with a broad range of marine engines, ensuring that you can find a perfect match for your specific vessel's requirements.

Replacement Information

The Alternator 100 AMP Kit replaces the following model:

• 621-VUP-MC-100-SR-KIT

Important Information

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

Additional Resources

Download the Brochure (PDF)

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.