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Durable Balmar Alternator 100 Amp Kit 12v 1-2" Single Foot Spindle Mount J10 Pulley Regulator Temp Sensor [621-vup-mc-100-j10] - Today Only [9TxaPq5K]

$77.99 $249.99 -69%

Balmar Alternator 100 AMP KitThis comprehensive kit from Balmar is designed for high-performance applications, offering a 100 AMP Alternator 12V Kit that ensures reliable power for your vehicle. The kit includes essential components such as the alter

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Balmar Alternator 100 AMP Kit

This comprehensive kit from Balmar is designed for high-performance applications, offering a 100 AMP Alternator 12V Kit that ensures reliable power for your vehicle. The kit includes essential components such as the alternator, regulator, temperature sensors, and mounting hardware, making it a complete solution for upgrading your electrical system.

Key Product Features

Featuring the 621-100-J10 Alternator, this kit is built to handle the demands of heavy-duty use. With its 100A output and 12V rating, it delivers ample power to keep your vehicle's electrical system running smoothly. The spindle mount design with a 1-2in mounting range ensures compatibility with a wide range of engines, while the J10 AltMount Serpentine Pulley provides efficient power transmission. Additionally, the kit is equipped with a temperature sensor for enhanced performance monitoring and safety.

Applications and Benefits

Whether you're a boat owner looking to upgrade your marine electrical system or a vehicle owner seeking to enhance the power output of your vehicle, the Balmar Alternator 100 AMP Kit is the perfect choice. This kit is particularly well-suited for engines like Westerbeke, Lehman, Hino, and Pathfinder, as well as Volvo Penta, John Deere, Perkins, Mercruiser, and many other GM-based engines. With its 1" Motorola-Style and 2" Delco-Style mounting options, it offers flexibility for different engine types. The kit not only replaces the 621-VUP-MC-100-SR-KIT but also comes with all the necessary hardware for easy installation. By choosing this Balmar Alternator Kit, you can expect improved reliability, increased power output, and extended battery life, ensuring a hassle-free and enjoyable driving or boating experience.

What Our Customers Say

January 6, 2026

Absolutely no complaints!

The construction is solid as a rock.

- SolidState.

January 6, 2026

Absolutely no complaints!

I’m giving this a full 5/5 stars.

- Kathryn Patterson.

January 6, 2026

Absolutely no complaints!

A truly excellent design, both visually and functionally.

- Shopaholic.

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