170A Marine Alternator in a Small Case Package. Up to 110A at Idle Speeds. Ideal for High Electrical Load Vessels. Custom High Speed Bearings for Long Life. Dual Fan Cooling, High Airflow Frame. USCG Title 33, ISO 8846 and SAE J1171 Certified. New XT-Series Alternators from Balmar bring together the latest innovations in alternator design to deliver incredible charging power in a compact, Marine-friendly package.