We have Nanni Marine Serpentine Pulley Upgrade Kits available for the Nanni N3.21, N3.30, N4.100, N4.38, N4.40, N4.50, N4.60 and N4.85 series of engines. These kits are easy to install. Please specify your engine model when placing your order.
Allow approx. 2 hours and 30 minutes for 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 O.E.M. alternator with your new ElectroMaax Marine Alternator be sure to read the wiring instructions prior to installing the unit.
You can now safely operate the ElectroMaax FM-12-80, 100, 120, 140 or 160 amp marine alternators that produce up to 70% of their output at fast idle. Contact us for further details!