Balmar 48YSP3JHA AltMount Serpentine Pulley Conversion Kit for Yanmar Diesel Engines

The Balmar 48YSP3JHA AltMount Serpentine Pulley Conversion Kit is designed to upgrade Yanmar diesel engines with serpentine pulleys for improved power transfer, reduced vibration, and quieter operation. This complete conversion kit is engineered for Yanmar engine models 3JH5, 3JH4-E, 4JH4-E, 4JH5, and 4JH5-E.

Kit Components:

• Three ten-groove (J10) serpentine pulleys
• Two J10 serpentine belts with 44.5-inch circumference
• One spare serpentine belt included
• Complete mounting hardware

The kit includes a precision-tuned and counterbored crankshaft pulley, water pump pulley, alternator pulley, two J-profile belts, and all necessary hardware for installation. Note: If you specify an AT-200A alternator, a longer belt length may be required.

Balmar's AltMount system provides superior belt tracking and alignment compared to traditional V-belt systems, resulting in more efficient alternator charging performance and extended belt life. This is an essential upgrade for marine diesel applications requiring reliable high-output charging systems.