Balmar 60YP-MC-120-K6 60-Series 120 Amp Dual Foot Marine Alternator Kit with MC Regulator

The Balmar 60YP-MC-120-K6 is a complete 60-Series high-output marine alternator charging kit delivering 120 amps in a compact small-case package. Designed for Hitachi-style mounts found on popular marine diesel engines, this kit provides a direct upgrade path for sailors and cruisers looking to increase onboard charging capacity without a full system overhaul.

At the core of this kit is the 60-120-K6 alternator — a 12V, 120A unit with a 3.15" saddle (dual foot) mount and K6 serpentine pulley. The alternator features an isolated ground design and delivers up to 60 amps at idle speeds, ensuring your battery banks stay charged even during low-RPM operation. Dual fan cooling and a high airflow frame keep operating temperatures in check, with a maximum rated speed of 12,000 RPM.

Patented Smart Ready® Technology is built into the 60-Series alternator, allowing it to operate as a stand-alone internal charge controller. This makes it ideal as a full-time regulator for simpler electrical systems, or as a reliable built-in backup regulator for offshore cruisers. For vessels with larger deep-cycle battery banks or less frequent engine use — such as sailboats — the kit pairs seamlessly with Balmar's ARS-5 or Max Charge external voltage regulators.

Kit Includes:

• 60-120-K6 Alternator — 120A, 12V, Dual Foot (Saddle Mount), 3.15", K6 Serpentine Pulley, Isolated Ground
• MC-614 Multi-Stage Voltage Regulator
• Alternator Temperature Sensor
• Battery Temperature Sensor
• Mounting Hardware

Key Features:

• 120 amps output in a compact small-case form factor
• Up to 60A output at idle speeds
• 3.15" dual foot (saddle) mount — Hitachi-style, typical for Yanmar, Westerbeke, Lehman, and Perkins-Sabre engines
• K6 serpentine pulley configuration
• Patented Smart Ready® internal regulation technology
• Dual fan cooling with high airflow frame
• Maximum RPM: 12,000
• Isolated ground design
• USCG Title 33, ISO, SAE, and CE compliant

The Balmar 60YP-MC-120-K6 is the ideal charging upgrade for cruising sailors and powerboaters seeking reliable, high-output battery charging with the flexibility of both internal and external voltage regulation.