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Balmar 48YSP4JHE AltMount Serpentine Pulley Conversion Kit for Yanmar 4JH2 Diesel Engines

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

48YSP4JHE
06/02/2036 8:33 AM
Sale Price

$691.98

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Product Details

The Balmar 48YSP4JHE AltMount® Serpentine Pulley Conversion Kit is specifically engineered for Yanmar 4JH2-TE, 4JH2-HTE, 4JH2-DTE, and 4JH2-UTE marine diesel engines. This patented conversion system provides a superior alternative to traditional single vee pulleys, enabling the use of high-output Balmar alternators while improving power transfer efficiency and reducing engine noise and vibration.

Key Features:

  • Includes three ten-groove (J10) serpentine pulleys for complete system conversion
  • Two J10 serpentine belts with 47-inch circumference (includes one spare)
  • All mounting hardware included for complete installation
  • Installs by placing conversion pulley over existing crank pulley and replacing water pump pulley
  • Greater belt-to-pulley surface contact accommodates higher power loads than single vee pulleys
  • Reduces belt dust, vibration, and engine noise during operation
  • Designed for use with Balmar 6-Series, XT-Series, and AT-Series alternators

Traditional single vee pulleys can only support alternator power loads up to 100A for 12V applications, while serpentine pulley systems provide the increased surface contact needed for much higher power transfer requirements. This conversion kit is uniquely designed for the specified Yanmar engine models and includes all hardware required for professional installation. Note that if using an AT-200A alternator, a longer belt length may be required.

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