6M21.3 marine propulsion engine
Engine Data
Cylinders: 6
Bore & Stroke (mm): 127×165
Total Displacement (L): 12.5
Engine Rotation: Counterclockwise
Idle Speed (RPM): 700
Flywheel: SAE 1
Flywheel Housing: SAE 14″
Certifications: IMO II

Ratings
Duty | kW | HP | RPM | Certifications |
P1 | 368 | 500 | 1800 | IMO II |
P1 | 405 | 550 | 1800 | IMO II |
P2 | 441 | 600 | 2100 | IMO II |