The cover with splash tube, code 11.01213-0057-1.0, is an integrated lubricating-oil management component in the MAN L21/31 engine. Its primary function is to control and direct oil splash inside the engine, ensuring that critical components such as bearings and gears receive adequate lubrication while preventing excessive oil dispersion. By promoting controlled oil flow and cleanliness, this cover helps reduce wear, improve lubrication efficiency, and support stable engine operation during continuous heavy-duty service.