Description
Balmar 120A 12V Alternator | Boat Supply Store
This Balmar 60-120-K6 alternator provides a robust 120 Amp output at 12 Volts, engineered to meet the demanding power requirements of common marine diesel engines. Featuring a K6 serpentine pulley for superior belt-to-pulley contact and a 3.15" dual foot saddle mount for secure installation, it ensures consistent and efficient charging, even under heavy electrical loads typical in offshore cruising or complex auxiliary systems. The isolated grounding design significantly reduces electrical interference, protecting sensitive onboard electronics and ensuring system integrity, making it an ideal upgrade for vessels utilizing Yanmar, Westerbeke, Lehman, or Perkins-Sabre engines.
Key Features
- 120 Amp Output for superior battery charging capacity
- 12V System Compatibility for standard marine electrical configurations
- K6 Serpentine Pulley for maximum belt grip and power transfer efficiency
- Dual Foot Saddle Mount ensures a secure and stable installation
- Isolated Grounding to prevent electrical noise and protect sensitive electronics
- Hitachi-Style Mounting for broad compatibility with popular marine diesel engines
- Reliable Performance designed for demanding marine applications
- Efficient Power Transfer for optimal engine-driven charging
Specifications
| Product Specifications | |
|---|---|
| Amp Output | 120 Amp |
| Voltage | 12V |
| Mounting Type | 3.15" Dual foot Saddle |
| Pulley Type | Single K6 Serpentine |
| Grounding | Isolated Grounding |
| Mounting Style | Hitachi-Style |
Who This Is For
Marine enthusiasts and boat owners with diesel engines like Yanmar, Westerbeke, Lehman, and Perkins-Sabre requiring a high-output 12V charging system. Ideal for those seeking a reliable upgrade with a K6 serpentine pulley and isolated grounding to enhance electrical system performance.
How It Compares
| Feature | Balmar 120A 12V Alternator | Model 21001301 |
|---|---|---|
| Amperage Output | 120A | 130A |
| Voltage | 12V | 12V |
| Pulley Type | K6 Serpentine | V-Belt |
| Grounding | Isolated Ground | Internal Ground |
| Mounting Style | Dual foot Saddle | Saddle Mount |
Common Concerns Answered
Are replacement parts readily available for this Balmar alternator?
While Balmar is known for quality, finding specific replacement parts for older models can sometimes require diligent searching. It is recommended to consult your specific engine manual or Balmar technical support for the most accurate parts information.
Is the initial cost of this alternator justified compared to other options?
The Balmar 60-120-K6 is engineered for high performance and reliability in demanding marine environments, offering superior charging and electrical protection. While the initial investment may be higher than generic alternatives, its durability and efficiency often provide a better long-term value for critical onboard systems.
What are the potential issues if I choose an alternator with internal grounding instead of isolated grounding?
Internal grounding can introduce electrical noise into your boat's sensitive electronics, potentially causing interference with navigation, communication, or entertainment systems. Isolated grounding, as featured in this Balmar alternator, mitigates these risks by providing a dedicated ground path, ensuring cleaner power for all onboard equipment.
Frequently Asked Questions
What is the amperage output of the Balmar 60-120-K6 alternator?
The Balmar 60-120-K6 alternator provides a robust 120 Amp output.
What voltage system is this alternator designed for?
This alternator is designed for standard 12V marine electrical systems.
What type of pulley system does the Balmar 60-120-K6 use?
The Balmar 60-120-K6 utilizes a single K6 serpentine pulley for efficient power transfer.
What is the mounting style of this alternator?
This alternator features a 3.15" dual foot saddle mount with Hitachi-style mounting dimensions for broad engine compatibility.
What does 'Isolated Grounding' mean in the context of this alternator?
Isolated grounding means the alternator's case is electrically separated from the vessel's main ground system. This design significantly reduces stray electrical currents and interference, protecting sensitive onboard electronics.
