Tom down in the engine bilge bay working on the Yanmar diesel engines.

Yanmar Diesel Engines

Yanmar 4LH-STE diesel engine in our boat.

Yanmar engines sit on both sides of the generator on our aft deck. Each engine is capable of 230 horsepower, for a total of 460 hp!

These diesel engines use the impeller 123325-42021, the impeller kit includes a new o-rings.

The impeller should be replaced every 100 hours or annually, whichever comes first.

Our enginesโ€™ zinc anode is PN 177301-54900.

The zinc anode should be inspected for degradation monthly, and replaced as needed (when there is little zinc remaining).

The oil filter for these Yanmar diesel engines is PN 127695-35160.

The oil and oil filter should be changed every 300 hours, or every season, whichever comes first.

The engines uses 2.5 gallons SAE 15W-40 grade oil EACH.

The fuel filter used on these engines are Yanmar 41650-502320 or Baldwin P7103. Both fuel filter kits include and two gaskets which should also be changed at the same time as the filter.

The diesel fuel filter should be changed every 250 hours.