The Volvo Penta MD7B is a 2-cylinder, 4-stroke marine diesel engine, often paired with the 120S saildrive, producing approximately 17 hp (12.5 kW) at 3000 r/min. It features direct injection, raw-water cooling, and a 0.744-liter displacement, weighing about 181 kg with the drive unit.
Key Features and Specifications:
Engine Type: 2-cylinder diesel, indirect injection (some models) or direct injection.
Power Output: 12.5 kW (17 hp) at 3000 rpm.
Capacity: 0.744 Liters.
Cooling System: Raw-water cooling.
Associated Drive: 120S Saildrive (2.2:1 ratio).