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Balmar 48-YSP-3GM-B Pulley Kit for Yanmar 2GM20-F, 3GM30-F, 3GM-F
Balmar 48-YSP-3GM-B Pulley Kit for Yanmar 2GM20-F, 3GM30-F, 3GM-F

Balmar 48-YSP-3GM-B Pulley Kit for Yanmar 2GM20-F, 3GM30-F, 3GM-F

On sale $495.00 $443.00
This kit, model 48-YSP-3GM-B is for a Yanmar 3GM30-F or 3GM-F. The F in the part number stands for Fresh Water Cooled
p/n: 48-YSP-3GM-B
Availability: In stock

These pulley kits by Balmar offer the opportunity to install a larger alternator than would otherwise be possible; this kit is for the Yanmar 2GM20-F, 3GM30-F, and 3GM-F.   The F stands for fresh water cooled. Alternator upgrades using a single drive belt are limited by the amount of power that can be transferred by the belt but using a multi grooved belt considerably increases the possibilities. The kits 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 40" 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.  The 3GM30 is quite different from the 3GM30-F and they frequently get mixed up.


Notice

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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