Nanni Belt Tensioner

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Engine belt tensioner on Nanni engineOur Nanni belt tensioner greatly enhances the performance of our SM line of marine alternators. This belt tensioning device is manufactured at our plant specifically for Nanni marine engines.

Our belt tensioner enables you to add or reduce tension to your engine belt without the need of a screw driver. Simply use the belt tensioning tool provided to you to achieve the perfect level of tension.

Key Benefits

The following are the key benefits of using our Nanni belt tensioner on your marine engine:

  1. substantially reduced slippage
  2. alternator is held firm in place
  3. eliminates any belt dust
  4. greatly increased belt life
  5. no additional brackets needed
  6. universal fit on most Yanmar marine engines
  7. fits under plastic belt cover
  8. engine runs quieter
  9. added flexibility along belt’s length
  10. greater lateral stability
  11. belt runs cooler, quieter and with less bending stress
  12. precision V-forming process assures exact size and angle   control
  13. high tenacity tensile cords
  14. special layer of reinforcement
  15. maintenance-free performance

* Readers note: in order for you to achieve the above key benefits of the Nanni belt tensioner, your belt needs to be installed and tensioned properly, according to instructions provided you.


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