Balmar Vortec Alternator Kit 170 Amp 12V with K6 Pulley, Regulator & Temp Sensor – XT-VT-170-K6-KIT

The Balmar Vortec Alternator Kit – 170 Amp, 12 Volt (XT-VT-170-K6-KIT) is a complete high-performance marine charging solution designed for vessels with modern electrical demands and large house battery banks. This all-inclusive kit features a Balmar Vortec alternator, K6 serpentine pulley, external smart voltage regulator, and temperature sensors, delivering intelligent, reliable, and efficient charging for cruising and offshore applications.

Built on Balmar’s advanced Vortec alternator platform, this system offers exceptional thermal management and high output at cruising RPMs. The 170-amp output at 12 volts provides powerful charging capability for inverters, refrigeration, navigation electronics, lighting, and other onboard systems, making it ideal for sailboats, powerboats, trawlers, and performance vessels.

The included K6 serpentine pulley ensures superior belt grip, reduced slippage, and smoother, quieter operation compared to traditional V-belt setups. The external smart regulator enables precise multi-stage charging, optimizing performance for AGM, gel, and lithium battery banks (with proper configuration). Alternator and battery temperature sensors protect your electrical system by automatically adjusting output to prevent overheating and extend battery life.

Engineered with marine-grade, corrosion-resistant materials, the Balmar Vortec alternator kit is designed to withstand harsh saltwater environments and continuous-duty operation. Trusted by professional installers and long-range cruisers, this kit provides a turnkey upgrade for superior charging performance and system protection.

Core Technology & Performance

• Braided Stator Technology: The XT-Series features a unique braided wire stator design that runs cooler and more efficiently than traditional windings. This allows the alternator to produce more power at lower RPMs, which is critical for charging while idling or at low cruise speeds.

• Smart Regulation: The included MC-618 Regulator provides multi-stage charging profiles (Bulk, Absorption, Float) and is fully programmable. It ensures your batteries are charged safely and quickly by communicating with the included temperature sensors for both the alternator and the battery bank.

• Vortec Mounting: Designed for the GM/Vortec-style mounting pattern common on many marine engines. This ensures a straightforward physical installation without the need for custom brackets in most compatible engine rooms.

• Serpentine Efficiency: The K6 Serpentine Pulley provides superior grip and surface area compared to traditional V-belts. This prevents belt slippage under high loads, ensuring all 170 Amps of potential power are transferred to your electrical system.

The Balmar Vortec Alternator Kit with K6 Serpentine Pulley, Regulator & Temp Sensor – 170A, 12V – XT-VT-170-K6-KIT is the perfect all-in-one solution for boat owners seeking maximum charging power, intelligent control, and long-term reliability.

Installation Tip: High-output alternators generate significant heat. Always use the included temperature sensors to enable "Small Engine Mode" or automatic output reduction if the alternator exceeds safe operating temperatures. Additionally, ensure your battery cables are sized appropriately (typically 1/0 or 2/0 AWG for a 170A run) to prevent voltage drop and overheating.

This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.