Balmar Alternator 1-2" Single Foot Dual V Pulley Regulator & Temp Sensor - 170A Kit - 12V - XT-SF-170-DV-KIT
Manufacturer Part #: XT-SF-170-DV-KIT
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Balmar Alternator Kit 170 Amp 12V Single Foot with Dual V Pulley, Regulator & Temp Sensor – XT-SF-170-DV-KIT
The Balmar Alternator Kit – 170 Amp, 12 Volt (XT-SF-170-DV-KIT) is a complete high-output marine charging solution engineered for boats that use traditional dual V-belt drive systems and require dependable power for modern onboard electronics. Featuring a 1–2” single-foot mount, dual V pulley, external smart voltage regulator, and temperature sensors, this kit delivers intelligent, efficient, and reliable charging for cruising and offshore vessels.
Designed for continuous-duty marine operation, the 170-amp alternator provides strong charging performance at cruising RPMs, ensuring reliable power for inverters, refrigeration, navigation electronics, lighting, and auxiliary systems. The single-foot mounting configuration allows compatibility with a wide range of marine engines while maintaining a compact installation footprint.
The dual V pulley design increases belt surface contact, improving torque transfer and reducing belt slippage compared to single V-belt systems. This makes it an excellent choice for high-output alternator applications where serpentine conversions are not desired or possible. The included smart external regulator enables advanced multi-stage charging profiles, optimizing battery performance and longevity for AGM, gel, and lithium battery banks (with proper configuration). Alternator and battery temperature sensors actively protect the system by adjusting output to prevent overheating and overcharging.
Built with marine-grade, corrosion-resistant materials, Balmar alternators are trusted worldwide for their durability, thermal efficiency, and long-term reliability in harsh saltwater environments.
Key Performance Features
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170 Amp XT-Series Alternator: Features a proprietary braided stator design that produces more power at lower RPMs and runs cooler than traditional alternators.
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Dual V-Pulley (DV): Designed for 1/2" (13mm) belts. The dual-belt configuration is essential for handling the torque of a 170A load without excessive slipping or wear.
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MC-618 Smart Regulator: Advanced external regulation with programmable profiles for Lithium, AGM, Gel, and Flooded batteries.
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Single Foot (Spool) Mount: 1" mount includes a 2" spacer kit, making it a drop-in replacement for Delco, Motorola, and Mercruiser style units.
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Full Thermal Protection: Includes temperature sensors for both the alternator and battery, ensuring the system automatically "de-rates" if temperatures exceed safe limits.
Technical Specifications
| Feature | Details |
| Model Number | XT-SF-170-DV-KIT |
| Output / Voltage | 170 Amps / 12 Volts |
| Mounting Style | 1" or 2" Single Foot (Spool) |
| Pulley Type | Dual V-Pulley (for 1/2" Belts) |
| Regulation | External MC-618 (Included) |
| Grounding | Case Ground |
| Compatibility | Lithium (LiFePO4), AGM, Lead Acid |
In The Box
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1 x Balmar XT-170 Alternator (Single Foot Mount)
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1 x Dual V-Pulley (Pre-installed)
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1 x MC-618 Multi-Stage Smart Regulator
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1 x Alternator Temperature Sensor (MC-TS-A)
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1 x Battery Temperature Sensor (MC-TS-B)
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1 x 1" to 2" Spool Spacer Kit
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Wiring Harness & Installation Manuals
The Balmar Alternator 1–2” Single Foot Dual V Pulley Regulator & Temp Sensor – 170A Kit – 12V – XT-SF-170-DV-KIT is an ideal turnkey upgrade for boat owners seeking high charging output, intelligent regulation, and proven Balmar reliability without converting to a serpentine belt system.
Balmar Alternator 1-2" Single Foot Dual V Pulley Regulator & Temp Sensor - 170A Kit - 12V - XT-SF-170-DV-KIT is backordered and will ship as soon as it is back in stock.
Balmar Alternator 1-2" Single Foot Dual V Pulley Regulator &am...
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