Serpentine pulley upgrade kits are a permanent solution to belt dust buildup on your boat engine. Pulley Upgrade Kits For Westerbeke, Yanmar, Volvo, Universal and more!
Discover how you can now substantially increase the output and performance of your alternator when charging at idle, when on the hook.
To start enjoying the benefits of an upgrade to your engine, choose your engine type below, or our other marine engine parts for more benefits.
Currently Electromaax is not developing custom pulley kits; only kits listed below are available.
Finally there’s a permanent solution to belt dust buildup on your engine and more importantly you can now substantially increase the output of your alternator without the fear of damaging your engine or electrical system – quite the contrary – you can now put the required load on your engine, when charging at idle, when on the hook.
Electromaax pulley kits are used in conjunction with our high output marine alternators ranging from 80 to 180 amps.
Watch an Electromaax marine alternator and pulley kit installation below
We have now developed serpentine (multi grooved) kits form most Yanmar marine engine from the mid 1970s and all current models. In addition we have developed a new tension-arm for all JH, GM and YM Yanmar series engines. This simple device makes tensing the belt easy, no need for screw drivers or large wooden sticks to help position the alternator and can be purchased separately. Kits for other popular brands of marine engines are either available or are currently under development.
Electromaax optimum charging solutions are designed and manufactured in the USA with top-quality materials. We use a serpentine 10-rib belt ( as in all automotive vehicles) in place of the single-V belt or double-V, for improved performance and reliability:
Firstly you will eliminate the build up of fine belt dust that penetrates vulnerable engine and electronic components. NOW you are able to drive a high output alternator that actually allows you to run the engine at idle as it (the alternator) creates load that keeps the engine in good fettle without damage to the engine. If you have the space you can also add a second alternator to further enhance your engine life.
I wanted the most bang for my buck & after talking with John at Electromaax, I liked their product & ordered a 160 amp alternator, smart regulator and serpentine pulley kit for our boat.
While a gallon of diesel at a marina is now $5.00 dollars plus, if you reduce this by 60% when running the engine to charge the batteries, what will you save? Most of our customers say it paid for itself within months, more importantly the piece of mind it gave them was priceless.
For those of us who cruise, the reduction of fuel consumption has a more significant value than just financial savings, it dramatically increases the range of our boat which keeps us cruising longer and allows us to stay in pristine spots when other cruisers have to leave due to refueling.
Well it’s your single v belt disintegrating due to slippage, why do you think the auto industry switched to serpentine 30 plus years ago?
Eventually the belt snaps (never on the dock) normally at sea when the engines hot and the sea is rough. The end result could be serious damage to your engines systems. Industrial 10 groove serpentine belts do not slip consequently they do not wear, and with a life time warranty you will never need to buy a new one.
Your current single V belt concentrates the tension in one small area on the pulley, which stresses the bearings, the serpentine spreads the stress over three times this area running smoother (without belt slippage ) and quieter which helps to further preserve the life of your engine.