Based on the proven and trusted 4-cylinder Monoblock concept of STEYR MOTORS, the SE 4-cylinder engine series has been further enhanced and especially designed for more torque at lower speed. The series is intended for installation with sterndrives, but does also allow other propulsion systems. The SE 4-cylinder series also features the outstanding power-to-weight ratio known from the MO series as well as the supreme operational safety, robustness and long service life. EPA Tier III, RCD as well as the U.S. Coast Guard certified the engine for its efficiency and quality.