I here people talking about finding injectors from different manufactors that might fit,,, How would you go about doing a cross reference... I have a westerbeke 21 and the injector part number is 30538
Google the crap out of it. Find every production boat that used that engine. Check their owners group sites. Check the parts houses for x-ref parts numbers. I quickly did a westerbeke tractor and parts search and hit some discussion of the issue. Looks like you won't have the easy access to tractor parts that universal (kubota) marine engine owners have. However, I wouldn't let that be the end of my search. Keep pushing and you will find some crossover for sure (looks like it was a mitsubishi block???). ou are asking the right questions!