Genuine Mercruiser diesel oil filters, available by mail order. Mercruiser / Quicksilver diesel oil filters are made to OEM standards to withstand the harsh environment in which Mercruiser diesel engines operate. Mercruiser oil filters and the oil should be changed at the end of each season, as should the gearbox oil.
Genuine Mercruiser oil filters are the genuine OEM fitment and should always be fitted to ensure the safe use of your diesel.
The Mercruiser and Mariner/Mercury oil drain pump attaches to the threaded fitting on the top of the dipstick and pumps oil from the engine crankcase.