Balmar Alternator 1-2" Single Foot K6 Serpentine Pulley Regulator & Temp Sensor - 170A Kit - 12V - XT-SF-170-K6-KIT
Manufacturer Part #: XT-SF-170-K6-KIT
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Balmar Alternator Kit 170 Amp 12V Single Foot with K6 Pulley, Regulator & Temp Sensor – XT-SF-170-K6-KIT
The Balmar Alternator Kit – 170 Amp, 12 Volt (XT-SF-170-K6-KIT) is a complete high-output marine charging system designed for boats with demanding electrical loads and upgraded battery banks. Featuring a 1–2” single-foot mount, K6 serpentine pulley, external smart voltage regulator, and temperature sensors, this kit delivers intelligent, efficient, and reliable charging for cruising and offshore vessels.
Built for continuous-duty marine operation, the 170-amp alternator provides strong charging performance at cruising RPMs, ensuring dependable power for inverters, refrigeration, navigation electronics, lighting, and onboard accessories. The single-foot mounting configuration allows compatibility with a wide range of marine engines while maintaining a compact installation footprint.
The K6 serpentine pulley improves belt grip, reduces slippage, and provides smoother, quieter operation compared to traditional V-belt systems. The included smart external regulator supports advanced multi-stage charging profiles, optimizing battery performance and longevity across AGM, gel, and lithium battery banks (with proper setup). Alternator and battery temperature sensors actively protect the system by adjusting output to prevent overheating and overcharging.
Constructed 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: Industry-leading power-to-size ratio, delivering massive output in a compact 12V frame.
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Versatile Single Foot Mount: Features a 1" spool mount with a 2" spacer kit, making it compatible with most Delco, Motorola, and Mercruiser mounting brackets.
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MC-618 Multi-Stage Regulator: Advanced external programming allows for precision charging profiles and protects batteries from overcharging.
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K6 Serpentine Pulley: Pre-installed 6-groove pulley ensures the belt can handle the significant torque required to generate 170 Amps.
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Total Thermal Management: Included sensors monitor both the alternator and battery temperatures, automatically adjusting output to ensure system longevity.
Technical Specifications
| Feature | Details |
| Model Number | XT-SF-170-K6-KIT |
| Output / Voltage | 170 Amps / 12 Volts |
| Mounting Style | 1" or 2" Single Foot (Spool) |
| Pulley Type | K6 Serpentine (6-Groove) |
| Grounding | Case Ground |
| Regulation | External MC-618 (Included) |
| Best For | Lithium (LiFePO4) & High-Capacity AGM Banks |
In The Box
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1 x Balmar XT-170 Alternator (Single Foot Mount)
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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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1 x Professional Wiring Harness & Technical Manuals
The Balmar Alternator 1–2” Single Foot K6 Serpentine Pulley Regulator & Temp Sensor – 170A Kit – 12V – XT-SF-170-K6-KIT is an ideal turnkey solution for boat owners seeking maximum charging output, intelligent regulation, and proven Balmar reliability.
Balmar Alternator 1-2" Single Foot K6 Serpentine Pulley Regulator & Temp Sensor - 170A Kit - 12V - XT-SF-170-K6-KIT is backordered and will ship as soon as it is back in stock.
Balmar Alternator 1-2" Single Foot K6 Serpentine Pulley Regula...
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