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New OEM Type "B" (filter) Box
for 1974-1976 Kawasaki H1E, H1F, KH500
Price: $99 each, 5 year warranty


  • Newly manufactured direct replacement for original late model H1 filter ("B") unit
  • Made in the U.S. by and for Triple owners
  • Similar electrical design to original "B" boxes, but with modern components
  • Component ratings equal to or better than originals
  • Housings hand fabricated from heavy gage 304 stainless steel
  • Five year warranty
This is a newly manufactured OEM style filter ("B") box, designed for arc suppression in the late H1 distributor, made to replace a stock unit. Internally, it is a modern copy of an original unit, with a similar electrical circuit, and components equivalent or superior to the originals.  The housing is hand fabricated from heavy gage 304 stainless steel, beautifully finished with a brushed appearance, and designed to fit perfectly in the original mounting plate. The circuit is sealed in high quality epoxy potting compound for protection from moisture and vibration.

This filter ("B") unit is designed to be used with a late H1 CDI ("A") unit, either a Kawasaki original "A" unit, or one of our new Stockbox "A" units.  This filter unit works like an original in every way.  (If you are using one of our late H1 CDI All-In-1 combination units, you don't need this.)  

We will repair or replace this unit, or refund the purchase price (at our option), if it fails to perform properly as a result of defects in materials or workmanship, within five years of the date of purchase.
Note that the wire lengths on the original units vary from year to year.  Please email a list of the wire lengths you need.  Measure from the rubber grommet to the tip of each connector, and note the color of each wire as you go.  We'll custom cut the wires and add connectors to match your measurements, and you'll be ensured of a proper fit.

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