High-Output Alternator for Heavy-Duty Marine Charging Applications

Supporting demanding onboard electrical systems, this 12V high-output alternator delivers up to 275A of charging capacity for marine engines equipped with a 1" single foot mounting arrangement and 2" spacer. The isolated ground configuration and selectable internal or external regulation provide installation flexibility for conventional lead-acid batteries or advanced charging systems using an external regulator. A 49mm K6 serpentine pulley ensures reliable belt engagement for continuous-duty operation.

Key Features

• 275A High Output Capacity – Produces up to 275A nominal output with a maximum cold output of 311A, supplying substantial charging power for battery banks and onboard electrical equipment.
• Internal or External Regulation – Supports either internal voltage regulation for straightforward installations or external regulation for advanced battery management and lithium charging systems.
• 1" Single Foot Mount with 2" Spacer – Configured for applications requiring a single foot mounting arrangement with a 2" spacer, providing compatibility with a wide range of marine engines.
• Isolated Ground Design – Reduces the risk of grounding issues and supports installations requiring an isolated electrical ground.
• 49mm K6 Serpentine Pulley – Fitted with a 6-groove serpentine pulley for dependable power transfer and efficient belt operation.
• Excellent Low-Speed Charging Performance – Delivers strong output at idle and cruising engine speeds to maintain battery charging throughout normal vessel operation.
• Advanced Cooling System – Incorporates heat-dissipating coatings, dual cooling fans and an externally mounted rectifier to assist with temperature management during continuous operation.
• Ignition Protected Construction – SAE J1171 certified for use in marine engine compartments requiring ignition-protected equipment.

Built for continuous heavy-duty service, this alternator provides reliable charging performance for marine applications with high electrical demands while offering the flexibility of internal or external voltage regulation.