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Westerbeke 42b 4 cylinder engine manufacturer

Dec 25, 2014
Catalina 27 Pasadena, Md
Does anybody know who makes the base engine for westerbeke, my previous sailboat had a universal m18 which is actually a Kubota tractor engine modified for marine.
Looking to try and find westerbeake parts cheaper.
Nov 6, 2006
Hunter 34 Mandeville Louisiana
Pretty sure it is a Mitsubishi base engine. I don’t know which, but with some investigation using the displacement and bore and stroke info, you can get to the particulars.
Feb 21, 2013
Hunter 46 Point Richmond, CA
Depending on what parts you want you might final after market options for some by doing an internet search.
Feb 6, 1998
Canadian Sailcraft 36T Casco Bay, ME
Most are Mitsubishi but some larger models are Isuzu. Westerbeke however has a contractual agreement with both engine makers and no dealer of Mitusbishi or Isuzu engines is allowed to sell components for a Westerbeke engine.