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SKU: ARUHBJ05E0 |  Mfg. Part: 621-100-K6  | UPC: 676205750806  | 
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Balmar 621-100-K6 100 Amp 12v Alternator With Isolated Ground And K6 Pulley

2 Available
Condition: New

$627.09  $846.57
Balmar BALMAR
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100 AMP 12V Alternator with Isolated Ground and K6 Pulley

This high-performance alternator from the 621 Series delivers 100A at 12V with an isolated ground. It features a spindle mount with a single foot, accommodates a 1-2 inch belt, and is equipped with a K6 serpentine pulley. This alternator is designed for compatibility with a variety of engines, including Westerbeke, Lehman, Hino, and more.

Typical Mounting:

  • 1" Motorola-Style for Westerbeke, Lehman, Hino & Pathfinder Engines
  • 2" Delco-Style for Volvo Penta (Gas & Diesel), John Deere, Perkins, Mercruiser, Pleasurecraft, Crusader, Indmar, and other GM-based Engines

Replaces part number: 621-100-SR-IG

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

  • 100 AMP output at 12V
  • Spindle mount with single foot style
  • Isolated ground setup
  • K6 serpentine pulley included
  • Compatible with various engine brands and models
  • Replaces 621-100-SR-IG
  • Manufacturer:
  • Model Number:
  • ASIN:
  • Condition:
  • Weight:
  • Dimensions:
  • Updated:
  • Added:
  • Country of Origin:
  • Balmar
  • 621-100-K6
  • B0C4HDQKZJ
  • New
  • 7.75 lbs
  • 10 X 8 X 10
  • Nov 11, 2025
  • Jan 31, 2023
  • UNITED STATES

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Balmar 621-100-K6 100 Amp 12v Alternator With Isolated Ground And K6 Pulley

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