Balmar 621-120-DV Alternator, 120 Amp 12V with Dual Vee Pulley and Isolated Ground for Marine Engines

Alternator 120 AMP 12V 1-2" Single Foot Spindle Mount Dual Vee Pulley with Isolated Ground

Alternator, 621 Series, 120A, 12V, Spindle Mount (Single Foot), 1-2in, Dual Deep Vee Pulley, Isolated Ground 1" Motorola-Style Mounting; Typical for Westerbeke, Lehman, Hino Pathfinder Engines 2" Delco-Style Mounting; Typical for Volvo Penta (Gas Diesel), John Deere, Perkins, Mercruiser, Pleasurecraft, Crusader, Indmar, Marine Power other GM-based Engines

Replaces: 621-120-SR-IG

The Balmar 621-120-DV Alternator is engineered for reliable power generation on a wide range of marine and industrial engines. This 120 Amp, 12-volt alternator features a spindle mount with a 1-2 inch single foot configuration, designed for straightforward installation on compatible engine models. Its dual deep Vee pulley ensures efficient belt grip and smooth operation, contributing to optimal performance in demanding environments. The isolated ground feature helps reduce electrical noise and interference, providing cleaner power output for sensitive electronic systems onboard.

The alternator's design caters to engines such as Westerbeke, Lehman, Hino, Pathfinder, Volvo Penta (Gas and Diesel), John Deere, Perkins, Mercruiser, Pleasurecraft, Crusader, Indmar, Marine Power, and other GM-based engines. The unit replaces the original 621-120-SR-IG model, offering a direct upgrade for those seeking durability and compatibility. Its compact dimensions and sturdy construction make it suitable for a variety of marine and industrial applications, where dependable electrical output is critical.

Constructed by Balmar, a trusted name in marine electrical components, this alternator is built to withstand tough conditions and provide consistent performance. It features a 1-2 inch spindle mount with a dual Vee pulley, ensuring excellent belt alignment and longevity. The isolated ground connection minimizes electrical noise, enhancing the operation of onboard electronics and navigation systems. This model does not include truck freight or oversized packaging, simplifying shipping and handling processes. Please note, returns are not accepted at the point of purchase; contact the manufacturer directly for support or warranty issues.

Features:

• 120 Amp, 12-volt output for reliable marine power

• Single foot spindle mount with 1-2 inch size for easy installation

• Dual deep Vee pulley for secure belt engagement and smooth operation

• Isolated ground reduces electrical noise and interference

• Compatible with a variety of marine and industrial engines including Westerbeke, Volvo Penta, John Deere, and GM-based engines

• Replaces model 621-120-SR-IG for straightforward upgrades

• Durable construction designed for demanding environments