fuso4dIn conclusion, the Mitsubishi 4D33 engine is a robust and efficient diesel engine widely used in commercial vehicles. orinal soundModel SERIES BE637 Series (4D33 Diesel Engine) R.H.D. BE637JRMSH Roof Hh Roof Grade Standard Seating Capacity (Persons) 34 MODEL Wheelbase 4,550 (179.1) Overall length