Our Yanmar belt tensioner when combined with our idler pulley, will substantially enhance the overall performance of our SM line of marine alternators for Yanmar marine engines.
No additional brackets are needed as this pulley is a universal fit on most Yanmar marine engines. It fits under plastic belt cover and adds extra flexibility along belt’s length. The precision V-forming process assures exact size and angle control and provides maintenance-free performance when belt is properly installed.
With the turning of a bolt you’ll gain the perfect level of belt tension for your Yanmar engine, and if you combine our tensioner with the included Gates Green Stripe XL V-Belt you’ll easily increase the reliability of your charging system.
The following are the main key benefits of our Yanmar belt tensioner combined with our idler pulley:
The Yanmar belt tensioner combined with the idler pulley is only recommended on marine alternators up to 100 amps. This device also needs to be combined with one of our serpentine pulley upgrade kits, specifically for higher amperage alternators and it is specifically manufactured for Yanmar marine engines only.
* Readers note: in order for you to achieve the above key benefits of the Yanmar belt tensioner and idler pulley, your belt must be installed and tensioned properly, according to instructions provided you.
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