My brother is in Thailand and posted a video of the boats used on the river in Bangkok. I was being cheeky and I said something about it being an Iveco 6cyl diesel with a Mitsubishi gear reduction and a two-speed from an old Diahatsu bus. Ha ha ha, funne me.
Then I thought... the GRM crew could probably ACTUALLY identify this thing!
You can see there is a chrome rod that goes to the transmission allowing for FWD-REV shifting I am guessing? Its Thailand, so I am guessing Japanese and maybe even Russian parts? Who knows. I think I see 6 fuel lines like on a diesel.