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Serpentine Pulley Upgrade Kits
4JH-TE Serpentine Pulley Kit
Serpentine Pulley Upgrade Kits

PK-4JH Yanmar Marine 4JH Serpentine Pulley Kit

$449.00 $398.72

  • Now you are able to run a high output marine alternator
  • eliminate belt dust
  • Save fuel
  • Reduce engine noise
  • Increase the life of your engine
  • Add a second crank pulley and run other devices
  • Greatly extend your cruising time and distance


This very popular Yanmar marine 4JH 44 HP, Entered into the market in 1983 and finished in 1989. This raw water cooled engine now has an Electromaax Serpentine Pulley Upgrade Kit that is very easy to install. Allow approx. 1 hour the first time you do this simple installation. When purchasing any Electromaax marine alternator the pulley can be installed for you at the factory. The new 10 groove serpentine (micro ‘V’) crank pulley simply slips over your current crankshaft pulley and is secured with the bolts supplied. The new serpentine water pump pulley simply replaces your original. When replacing the original Hitachi alternator with your new Electromaax Marine alternator the installation has been eased by utilizing the factory Yanmar connections making this upgrade “plug and play”.

Additional information

Weight 1.5 lbs
Dimensions 8 × 8 × 3 in