Yanmar N21

The Yanmar N21 is an in-line six-cylinder, four-stroke, medium-speed diesel engine with a 210 mm bore and 290 mm stroke. The 6N21A-DW, 6N21A-UW, 6N21A-SW and 6N21A-EW versions are rated 662 to 956 kW at 800 to 900 rpm.

Model variants 6N21A-DW, 6N21A-UW, 6N21A-SW, 6N21A-EW
Number of Cylinders 6
Bore 210 mm
Stroke 290 mm
Power 662 – 956 kW
Speed 800 – 900 rpm
Weight 8000 kg

To identify and order a spare part for N21, please provide the model name and the serial number stamped on the nameplate.