Balmar Alternator 250 AMP Kit 12V 3.15" Dual Foot Saddle J10 Pulley Regulator & Temp Sensor

The Balmar Alternator 250 AMP Kit 12V 3.15" Dual Foot Saddle J10 Pulley with Regulator and Temperature Sensor is a high-output marine and stationary power generation system designed for demanding marine engines and offshore applications. This 250-amp alternator kit delivers the electrical capacity required for vessels running extended operations, multiple electrical systems, and battery charging under continuous load—a critical requirement for commercial and private marine operations where power reliability directly impacts mission readiness and safety.

The XT Series alternator employs a dual-foot saddle mount configuration with a 3.15-inch serpentine pulley interface (J10 AltMount specification), engineered for compatibility with Yanmar, Westerbeke, Lehman, and Perkins-Sabre marine diesel and gasoline engines. The kit includes the MC-618 voltage regulator and temperature sensors, providing load-sensing regulation and thermal protection essential for extended offshore and commercial duty cycles. Case ground design ensures reliable electrical grounding across diverse engine installations. At 250 amps continuous output, this alternator addresses high-demand vessel electrical architectures where standard output units prove insufficient for redundant systems, winches, lighting, navigation electronics, and auxiliary charging infrastructure.

This kit serves commercial fishing vessels, offshore support craft, research platforms, and extended-range private marine installations requiring robust electrical generation. The alternator replaces earlier AT-series models (AT-DF-MC-200-KIT, AT-DF-200-J10-KIT), offering increased output for operators upgrading electrical infrastructure or expanding onboard systems. Complete with mounting hardware, the XT-DF-250-J10-KIT delivers plug-in installation on compatible engine blocks without requiring custom fabrication or integration work.