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Durable Balmar Alternator 100 Amp 12v 1-2" Single Foot Spindle Mount J10 Pulley W/isolated Ground [621-100-j10] 80% Off - Today Only [KUp0DQTM]

$57.99 $185.99 -69%

Balmar Alternator 100 AMP 12V 1-2" Single Foot Spindle Mount J10 Pulley w/Isolated GroundThis premium Balmar Alternator is designed for high-performance applications, offering a robust 100 AMP output and a 12V rating. The spindle mount design provide

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Balmar Alternator 100 AMP 12V 1-2" Single Foot Spindle Mount J10 Pulley w/Isolated Ground

This premium Balmar Alternator is designed for high-performance applications, offering a robust 100 AMP output and a 12V rating. The spindle mount design provides a stable and secure installation, ensuring optimal performance in a variety of conditions. Key features include:

  • Spindle Mount (Single Foot) for easy and secure installation
  • J10 AltMount Serpentine Pulley for efficient belt drive
  • Isolated Ground 1" Motorola-Style Mounting for improved electrical performance

Technical Specifications

Equipped with the latest technology, this alternator delivers exceptional reliability and efficiency. Key specifications include:

  • Alternator Series: 621
  • Current Rating: 100A
  • Voltage Rating: 12V
  • Mounting Type: Spindle Mount (Single Foot)
  • Pulley Type: J10 AltMount Serpentine Pulley
  • Grounding: Isolated Ground 1" Motorola-Style Mounting

Applications and Benefits

Perfectly suited for a wide range of engines, this alternator is ideal for Westerbeke, Lehman, Hino, Pathfinder, Volvo Penta (Gas & Diesel), John Deere, Perkins, Mercruiser, Pleasurecraft, Crusader, Indmar, Marine Power, and other GM-based engines. By replacing the 621-100-SR-IG, you can enjoy numerous benefits:

  • Enhanced electrical system performance
  • Increased reliability and durability
  • Improved fuel efficiency

What Our Customers Say

December 31, 2025

Absolutely no complaints!

This has been a very welcome surprise.

- Ariana M..

December 31, 2025

Absolutely no complaints!

This is a very solid, highly impressive tool.

- Remington L..

December 31, 2025

Absolutely no complaints!

A superb gadget that is so easy to handle.

- Mathias G..

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