high quality deutz 4 cylinder air cooling diesel engine F4L912

The diesel engine has the highest thermal efficiency (engine efficiency) of any practical internal or external combustion engine due to its very high expansion ratio and inherent lean burn which enables heat dissipation by the excess air. A small efficiency loss is also avoided compared to two-stroke non-direct-injection gasoline engines since unburned fuel is not present at valve overlap and therefore no fuel goes directly from the intake/injection to the exhaust. Low-speed diesel engines (as used in ships and other applications where overall engine weight is relatively unimportant) can have a thermal efficiency that exceeds 50%.

Genuine NTA855 series marine engine

Original 4B series marine engine

Brand new ISF3.8 series engine

QSB6.7 series engine

6BT series engine

6CTseries engine

engnine parts

injector

piston kit

connecting rod

connecting rod bearing

cylinder linner

turbocharger