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  6. Balmar 48-YSP-4JH-B Pulley Kit for Yanmar 4JH4, -TE, HTE, -DTE
Balmar 48-YSP-4JH-B Pulley Kit for Yanmar 4JH4, -TE, HTE, -DTE
Balmar 48-YSP-4JH-B Pulley Kit for Yanmar 4JH4-E, -TE, HTE, -DTE

Balmar 48-YSP-4JH-B Pulley Kit for Yanmar 4JH4, -TE, HTE, -DTE

On sale $643.50 $566.99
p/n: 48-YSP-4JH-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 4JH4 and its variations 4JH4, 4JH4-TE, 4JH4-HTE and 4JH4-HTE. Also the 4JH4-TBE.  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 47" circumference J10 belts and mounting hardware.
  • See the Additional Information tab for more about belts.
  • Instruction sheet
  • Read my Blog Post about installing this exact kit.
  • Please check your engine model number carefully to ensure you are ordering the correct kit. 
  • The UBB2 would be the correct adjustment arm for this engine


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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