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Balmar XTSF250K6 High Output Marine Alternator 250 Amp 12V Single Foot K6 Serpentine

Manufacturer

Balmar

<p>Balmar has established itself as a trusted name in marine electrical systems, specializing in advanced charging solutions designed to meet the demanding power requirements of modern vessels. With a focus on reliability and performance, Balmar engineers products that keep marine electrical systems running smoothly in challenging saltwater environments.</p><h3>Marine Charging Excellence</h3><p>At the heart of Balmar's product line are their high-output <a href="/12782-balmar-alternators-200087">alternators</a> and precision <a href="/12782-balmar-voltage-regulators-201148">voltage regulators</a>, engineered specifically for marine applications. Unlike standard automotive alternators, marine charging systems must contend with constant vibration, temperature fluctuations, and corrosive saltwater exposure. Balmar addresses these challenges with robust construction, marine-grade materials, and advanced voltage regulation technology that ensures optimal battery charging while preventing overcharging damage.</p><h3>Comprehensive Marine Solutions</h3><p>Beyond charging components, Balmar's expertise extends to critical drivetrain elements. Their <a href="/12782-balmar-drives-gearcases-transoms-200346">drives, gearcases, and transoms</a> components reflect the same commitment to marine-grade durability that defines their electrical products. These components are designed to withstand the harsh marine environment while delivering reliable performance season after season.</p><h3>Precision Fuel System Components</h3><p>Balmar also offers specialized solutions for marine fuel delivery systems, including <a href="/12782-balmar-fuel-injection-pressure-regulator-6124">fuel injection pressure regulators</a> that maintain consistent fuel pressure for optimal engine performance. Proper fuel pressure regulation is essential for modern marine engines, ensuring efficient combustion, reliable starting, and smooth operation across varying load conditions.</p><h3>Why Marine Professionals Choose Balmar</h3><p>What sets Balmar apart is their deep understanding of marine electrical demands. Cruising vessels, fishing boats, and commercial marine applications all require dependable power systems that can support navigation electronics, communication equipment, refrigeration, and other essential systems. Balmar's products are engineered with these real-world demands in mind, providing the charging capacity and reliability that marine applications require. Whether you're upgrading an existing charging system or building out a new vessel's electrical infrastructure, Balmar components deliver the performance and longevity that serious boaters depend on.</p>

Part Number

XTSF250K6
06/02/2036 8:33 AM
Sale Price

$1,155.12

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Usually delivered within 2 days

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Product Details

The Balmar XT-SF-250-K6 is a high-performance 250-amp alternator designed for marine, RV, and powersports applications requiring exceptional charging power in a compact package. This 12-volt alternator features advanced braided stator wire design and delivers superior output, even at low engine speeds.

Advanced XT-Series Technology:

  • State-of-the-art braided wire stator with 96 slots (versus 36 in traditional designs) for superior electromagnetic efficiency
  • Industry-leading 85% copper winding density for maximum output in minimal space
  • Delivers up to 186 amps at idle speeds for 12V applications
  • Runs 5-10°C cooler than previous AT-Series designs
  • Dual fan cooling system with high airflow frame design
  • Smart Ready® internal regulator technology for enhanced fault tolerance

Mounting and Compatibility:

  • Single foot spindle mount design (1-2 inch)
  • K6 serpentine pulley configuration with case ground
  • 1-inch Motorola-style mounting: Compatible with Westerbeke, Lehman, Hino, and Pathfinder engines
  • 2-inch Delco-style mounting: Compatible with Volvo Penta (gas and diesel), John Deere, Perkins, Mercruiser, Pleasurecraft, Crusader, Indmar, Marine Power, and other GM-based engines
  • Requires dual vee or multi-groove serpentine belt configuration

Certifications and Ratings:

  • USCG Title 33, ISO 8846, and SAE J1171 certified for marine applications
  • Ideal for lithium battery bank charging systems

This alternator is perfect for vessels and vehicles with high electrical demands, particularly those operating frequently at idle speeds. The XT-Series produces over 100 amps at idle, making it ideal for powersports applications with ballast pumps, high-output audio systems, and multiple instrumentation loads. May require a tachometer signal stabilizer (Part No. 15-TSS) if your current tachometer is not adjustable.

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