120A Marine Alternator Charging Kit for Dual Vee Belt Systems

Provides a high-output charging solution for 12 V recreational marine electrical systems, combining a 120 A small-case alternator with external multi-stage regulation and temperature monitoring. The 1–2 inch single-foot spindle mounting configuration supports compatible marine engines, while the 1/2 inch dual Vee pulley accommodates suitable dual V-belt drive systems. Smart Ready internal regulator technology provides fixed-voltage operation when appropriate, while the supplied Max Charge regulator supports external P-Type regulation for larger deep-cycle battery banks and more demanding charging requirements. Dual internal fans and a ventilated cast-aluminium frame assist with heat management during sustained charging.

Key Features

• 120 A Charging Output: Provides high-output charging for 12 V recreational marine battery systems.
• Max Charge Regulation: Includes a Max Charge voltage regulator for external multi-stage charging control.
• Dual Temperature Sensors: Supplied with two temperature sensors to support charging system temperature monitoring.
• Dual Vee Pulley: Features a 1/2 inch dual Vee pulley for compatible dual V-belt drive arrangements.
• Single-Foot Spindle Mount: Supports both 1 inch and 2 inch single-foot spindle mounting configurations.
• Smart Ready Technology: Incorporates an internal fixed-voltage regulator while supporting external P-Type regulation.
• Dual Internal Fans: Uses dual internal fans and a high-airflow frame to assist cooling during operation.
• Isolated Ground: Features a dedicated grounding terminal with the alternator case electrically isolated.
• Heavy-Duty Bearings: Uses sealed heavy-duty radial bearings at the front and rear.
• Marine Compliance: Meets USCG Title 33, ISO J1187, SAE J8846 and CE ignition-protection requirements.
• Pulley Conversion Compatibility: An AltMount belt and pulley conversion kit may be required where a suitable Dual Vee or serpentine drive is not already present.

Configured for higher-output dual V-belt installations, the charging kit combines 120 A capacity with controlled external regulation and temperature sensing. Its compact small-case construction supports charging upgrades for compatible recreational marine electrical systems.