High-Output 12V Marine Alternator with N62 Mounting for Advanced Charging Systems

Modern marine and specialist vehicle electrical systems require consistent charging performance to support high-capacity battery banks and continuous electrical loads. Delivering a nominal 275A output with up to 311A maximum output, this 12V high-output marine alternator features an N62 mounting configuration, side-mounted battery post, external regulation and a 50mm K6 overrunning alternator pulley (OAP). Its large 138mm frame, robust internal components and high idle output provide dependable charging performance across a wide operating range.

Key Features

• 275A Nominal Charging Capacity: Delivers high charging output to support large battery banks, inverters and demanding onboard electrical equipment.
• Up to 311A Maximum Output: Produces exceptional charging performance at higher alternator speeds for faster battery replenishment.
• Outstanding Hot Output Performance: Maintains up to 227A at cruising speed and 198A at idle under hot operating conditions, providing dependable charging throughout engine operation.
• External Regulation Compatible: Designed exclusively for use with an external regulator, enabling accurate charging control and optimisation for advanced battery management systems.
• N62 Mounting Configuration: N62 housing provides compatibility with applications requiring this specific mounting arrangement.
• 50mm K6 Overrunning Alternator Pulley (OAP): Clutch-style pulley helps minimise belt vibration, reduces accessory drive shock loads and contributes to smoother engine operation.
• Large 138mm Frame Design: High-output alternator architecture provides increased power capability while maintaining reliable thermal performance.
• Side-Mounted M8 Battery Post: Secure M8 threaded connection simplifies installation and cable routing.
• Heavy-Duty Pulley Assembly: Features a 17mm threaded shaft with supplied retaining nut and washer for secure pulley installation.
• Avalanche-Rated Diode Pack: Six positive and six negative 50A avalanche-rated diodes improve durability and provide protection against voltage spikes.
• Wide Operating RPM Range: Begins charging from just 1,061 alternator RPM and supports continuous operation up to 19,000 alternator RPM.
• Marine-Grade Protective Finish: Available with a black Cerakote or E-coating finish to help resist corrosion in harsh marine environments.

Combining exceptional charging output with strong idle performance and external regulation capability, this alternator is built to support demanding electrical systems that require reliable power under continuous operation. Its N62 mounting configuration and overrunning alternator pulley make it suitable for compatible high-load charging applications.