Description
Balmar 100A 12V Dual Vee Alternator | Boat Supply Store
Ensure consistent and robust power for your vessel's critical systems with the Balmar 621-100-DV 100 AMP 12V alternator. Engineered for demanding marine environments, this unit features a 1-2 inch single foot spindle mount and a dual deep vee pulley for efficient power transfer and belt longevity. Its isolated ground design mitigates electrolysis risk, making it an ideal replacement for older or less capable alternators on a wide range of diesel and gasoline marine engines.
Key Features
- Achieve maximum 100 AMP output at 12V for substantial system power.
- Benefit from a secure 1-2 inch single foot spindle mount for installation.
- Utilize a durable dual deep Vee pulley for enhanced belt grip and longevity.
- Prevent galvanic corrosion with an integrated isolated ground system.
- Enjoy broad engine compatibility with both Motorola and Delco mounting styles.
- Gain confidence with a direct replacement for the Balmar 621-100-SR-IG.
- Designed specifically for the rigors of marine applications.
- Maintain peak battery charge and onboard electronics performance.
Specifications
| Product Specifications | |
|---|---|
| Brand | Balmar |
| SKU | CWR97458 |
| Model | 621 Series Alternator |
| Amperage Output | 100A |
| Voltage | 12V |
| Mounting Type | Single Foot Spindle Mount |
| Spindle Mount Size | 1-2 inch |
| Pulley Type | Dual Deep Vee Pulley |
| Ground Type | Isolated Ground |
| MPN | 621-100-DV |
Who This Is For
Marine engine owners and mechanics requiring a high-output, reliable 12V alternator with dual vee pulley and isolated ground. It is particularly suited for those with specific engine types like Westerbeke, Lehman, Hino, Pathfinder, Volvo Penta, John Deere, Perkins, and GM-based engines.
How It Compares
| Feature | Balmar 100A 12V Dual Vee Alternator | Ground Stud |
|---|---|---|
| Amperage Output | 100A | 120A |
| Voltage | 12V | 12V |
| Pulley Type | Dual Deep Vee | Single Vee |
| Ground Type | Isolated Ground | Typically less capable |
| Spindle Mount Size | 1-2 inch | Typically less capable |
Common Concerns Answered
What is the return policy if there are issues with this alternator?
Product returns are not processed through the original point of purchase. For any issues, please contact the manufacturer directly for resolution. This policy ensures efficient warranty and support services directly from Balmar.
Is fitment guaranteed for my specific engine?
Fitment is not universal and requires careful verification of your engine's mounting style and spindle size. While this alternator offers broad compatibility with popular engine brands, confirming these specifications against your engine's requirements is essential before purchase.
Will this alternator work with my engine if it has a standard ground?
No, this alternator is specifically designed with an isolated ground to mitigate electrolysis risks in marine environments. It will not function correctly with engines requiring a standard ground connection. Always verify your engine's grounding requirements.
Frequently Asked Questions
What is the amperage output of the Balmar 621-100-DV alternator?
The Balmar 621-100-DV alternator provides a robust 100 AMP output at 12V.
What type of pulley system does this alternator use?
This alternator utilizes a dual deep Vee pulley system, designed for superior belt grip and enhanced durability.
What engine mounting styles is this alternator compatible with?
This alternator is compatible with both Motorola-style mounting (common on Westerbeke, Lehman, Hino, Pathfinder) and Delco-style mounting (common on Volvo Penta, John Deere, Perkins, Mercruiser, Pleasurecraft, Crusader, Indmar, Marine Power, GM-based engines).
Is this alternator a direct replacement for the Balmar 621-100-SR-IG?
Yes, this Balmar 621-100-DV alternator is designed to directly replace the Balmar 621-100-SR-IG model.
What is the spindle mount size for this alternator?
The spindle mount size for this alternator is 1-2 inches.
