AT-Series Kits combine high output AT-Series alternators with our intelligent MC-614 multi-stage regulator w/harness, along with alternator, DMG pulley and battery temperature sensors. Extremely high output at low RPM. Engineered for high demand electrical systems.
ATSF models: Fit engines using a 1″ & 2″ single foot (spool) mount. For many 4.3-5.7L Mercruiser, Volvo Penta, Pleasurecraft, Crusader & other GM gas, Volvo, Cummins, Yanmar 6LP, Westerbeke diesels with Delco & Motorola-equipped alternators.
ATDF models: fit engines using a 3.15″ dual foot (saddle) mount. For many 6.2-8.1L Mercruiser, Volvo Penta, Crusader & other large block GM gas, Yanmar, Westerbeke, Perkins diesels with Hitachi-equipped aslternators. Contact Balmar Technical Support with any application questions to confirm your specific engine/alternator configuration and appropriate belt/pulley.