Balmar Alternator 120 AMP 12V 1-2" Single Foot Spindle Mount Dual Vee Pulley w/Isolated Ground

Ensure your marine engine operates at peak performance with our high-quality 120 AMP 12V Alternator. Designed for durability and efficiency, this alternator features a single foot spindle mount and dual deep vee pulleys, providing reliable power and long-lasting performance for a wide range of marine applications.

Key Features

• High Output: 120 Amp, 12 Volt for a reliable power supply
• Spindle Mount: Single Foot Spindle Mount for easy installation
• Pulley System: Dual Deep Vee Pulley enhances belt grip and longevity
• Isolated Ground: Reduces electrical noise and interference
• Mounting Options:
  • 1" Motorola-Style Mounting – Compatible with Westerbeke, Lehman, Hino & Pathfinder Engines
  • 2" Delco-Style Mounting – Compatible with Volvo Penta (Gas & Diesel), John Deere, Perkins, Mercruiser, Pleasurecraft, Crusader, Indmar, Marine Power & other GM-based Engines

Compatibility

Mounting Type	Compatible Engines
1" Motorola-Style	Westerbeke, Lehman, Hino, Pathfinder
2" Delco-Style	Volvo Penta (Gas & Diesel), John Deere, Perkins, Mercruiser, Pleasurecraft, Crusader, Indmar, Marine Power, GM-based Engines

Specifications

• Series: 621 Series
• Output: 120 Amp
• Voltage: 12V
• Pulley Size: 1-2 inches
• Replacement Part Number: 621-120-SR-IG

Replacement Information

This alternator is a direct replacement for part number 621-120-SR-IG, ensuring seamless integration with your existing marine engine setup.

Warranty and Returns

Please note: This product may not be returned to the original point of purchase. For any issues or concerns, please contact the manufacturer directly.

Additional Resources

Download Brochure (PDF)