I'm not really sure about what you are asking here.....
I alson don't know the year model of your machine to know what model engine you are running, if it is a Kubota V33,36,3800 like i suspect you are. It runs an external injector pump unit, there is an inline pump that bolts to this housing. It has an oil supply from the engine to lubricate it.
Is this what you are asking? or if it was a sealed unit with oil in it that needs to be replaced? if it is the model i suspect, it just runs engine oil supplied from the sump.
