621-120-DV - Balmar 120 AMP 12V Alternator with Dual Vee Pulley | Aztek Computers
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SKU: YXKSP7WKZS |  Mfg. Part: 621-120-DV  | UPC: 676205131087  | 
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621-120-DV - Balmar 120 AMP 12V Alternator with Dual Vee Pulley and Isolated Ground

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$739.59  $998.45
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Product Overview

120 AMP 12V Alternator with Dual Vee Pulley and Isolated Ground

This high-performance alternator is designed for marine applications, ensuring reliable power generation with a 120 AMP output at 12 volts. It features a spindle mount with a single foot and a dual deep vee pulley, utilizing an isolated ground for improved performance.

It is compatible with various engines, including Westerbeke, Lehman, Hino, and Pathfinder, as well as Volvo Penta, John Deere, Perkins, Mercruiser, Pleasurecraft, Crusader, Indmar, and other GM-based engines.

Replaces: 621-120-SR-IG

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

Expert Overview

The Balmar 120 AMP 12V Alternator with Dual Vee Pulley and Isolated Ground provides reliable 12-volt power generation for marine applications. This unit is engineered for consistent performance, delivering a 120 AMP output. It features a spindle mount with a single foot and a dual deep vee pulley, designed for integration with various marine engines. The isolated ground configuration is intended to enhance overall system performance. This alternator is compatible with engines from manufacturers such as Westerbeke, Lehman, Hino, Pathfinder, Volvo Penta, John Deere, Perkins, Mercruiser, Pleasurecraft, Crusader, Indmar, and other GM-based engines. It serves as a direct replacement for the 621-120-SR-IG model. The 621-120-DV model is suitable for IT buyers managing power systems in marine environments where a robust and compatible alternator is required.

Technical Specifications

  • 120 AMP output at 12 volts for high-performance power generation
  • Spindle mount with single foot design
  • Dual deep vee pulley for versatile engine compatibility
  • Isolated ground for enhanced performance
  • Compatible with multiple engine types and brands
  • Easy replacement for model 621-120-SR-IG

Product Details

  • Manufacturer:
  • Model Number:
  • UPC:
  • Condition:
  • Weight:
  • Dimensions:
  • Updated:
  • Added:
  • Country of Origin:
  • Balmar
  • 621-120-DV
  • 676205131087
  • New
  • 8 lbs
  • 11 X 10 X 10
  • Jul 21, 2026
  • May 01, 2026
  • US
Product Identifiers: Brand: Balmar • Part #: 621-120-DV • UPC: 676205131087 • Category: 12-Volt Portable Appliances

Frequently Asked Questions

What is the primary application for this alternator?

This alternator is designed for marine applications, ensuring reliable power generation in 12-volt systems.

Which engine types are compatible with this alternator?

It is compatible with engines from Westerbeke, Lehman, Hino, Pathfinder, Volvo Penta, John Deere, Perkins, Mercruiser, Pleasurecraft, Crusader, Indmar, and other GM-based engines.

What type of pulley and mount does this alternator use?

The alternator features a spindle mount with a single foot and a dual deep vee pulley for versatile engine compatibility.

What is the output specification of this alternator?

This alternator provides a 120 AMP output at 12 volts, designed for high-performance power generation.

621-120-DV - Balmar 120 AMP 12V Alternator with Dual Vee Pulley and Isolated Ground

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Reviews for Balmar 621-120-DV

$739.59