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Balmar 48-YSP-3JH-E Pulley Kit for Yanmar 3JH3
Balmar 48-YSP-3JH-E Pulley Kit for Yanmar 3JH3

Balmar 48-YSP-3JH-E Pulley Kit for Yanmar 3JH3

On sale $495.00 $443.00
Balmar Altmount Serpentine pulley kit permits mounting a much larger alternator in lieu of the standard model because of its 10 groove serpentine belt. This kit, model 48-YSP-3JH-E is for a Yanmar 3JH3
p/n: 48-YSP-3JH-E
Availability: Can ship direct from Balmar if you select a paid shipping method.

These pulley kits by Balmar offer the opportunity to install a larger alternator than would otherwise be possible. this kit is for the Yanmar 3JH3.   The kit include a set of serpentine pulleys for the crankshaft, water pump pulley and alternator. This pulley kit comes with two belts so you have a spare, the alternators need to be purchased separately. If you order an alternator at the same time as the kit it will come with the appropriate pulley pre-installed. 

  • Kit includes three ten groove J10 pulleys
  • Includes also two 46" circumference J10 belts and mounting hardware.
  • See the Additional Information tab for more about belts.
  • Instruction sheet
  • Read my Blog Post about installing one of these kits.
  • Please check your engine model number carefully to ensure you are ordering the correct kit.  


This kit is designed for use with a Balmar alternator. If you want to use it with your stock Hitachi alternator then you also need to purchase the Hitachi Pulley 48-AM-97. This special Hitachi pulley fixes an alignment issue. It may be possible to use the kit with any alternator that has a 17mm shaft diameter, but the fit and alignment is not guaranteed.   Using this kit with other alternators may require you to change the length of the belt.

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