This very popular Yanmar marine JH series of engines entered into the market in 1989 and finished being manufactured in 1999.
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.
We manufacture Serpentine Pulley Kits for the following Yanmar JH Series of marine engines:
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”