Increase Performance with a Serpentine Pulley Upgrade Kit

Available for Yanmar and Volvo Penta.

Announcement as of September 30th 2024 Electromaax will no longer make Nanni, westerbeke, Universal, Perkins or other low volume marine engine kits as production items. ONLY Yanmar and Volvo Penta will remain.

Our Serpentine Pulley Upgrade Kits at a Glance

  • Permanent Solution to Belt Dust: ElectroMaax Serpentine Pulley Upgrade Kits provide are a lasting solution to belt dust buildup on boat engines, and suitable for a wide range of brands including Yanmar, Volvo, Nanni, and many more.
  • Increased Alternator Output: These kits allow for a substantial increase in alternator output without risking damage to the engine or electrical system, promoting optimal engine load during idle.
  • Compatibility with High-Output Alternators: Designed to work in conjunction with ElectroMaax High-Output Marine Alternators, ranging from 100 to 250 amps.
  • Wide Range of Engine Compatibility: Kits are developed for most Yanmar marine engines from the mid-1970s to current models and include a tensioning-arm for easy belt tensioning. Kits for other popular marine engines are also available or in development.
  • Amperage Increase and Fuel Savings: The upgrade can nearly triple your alternator's amperage, reducing fuel consumption by 60%, leading to significant savings and a quick return on investment.
  • Extended Vessel Range: By reducing fuel consumption, the Serpentine Pulley Kits significantly increase the cruising range of the boat, allowing longer stays in remote locations.
  • Enhanced Performance and Durability: The serpentine 10-rib belt offers smooth operation and better traction, while the machined 6061 aluminum structure and corrosion-resistant anodizing ensure strength and longevity.
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