Engine Drain Plugs

Every outboard and inboard engine requires regular servicing, at least once a season or more frequently, depending on engine hours. As for seasonal maintenance, it's better to carry it out in the fall, as you can remove water from the motor's internals before air temperature drops below freezing. Oil change is one of the most crucial procedures, and commonly, a boat needs two types of oil - motor and gear oil; the latter is used in a gearcase or lower unit. Respectively, four-stroke marine engines may have two drain plugs for removing waste oil, along with some other threaded plugs utilized for draining water or cooling fluid.

Many engine plugs are used with sealing washers or gaskets, and should you experience problems with these seals or drain plugs, check out our large collection of these parts for a reliable and quality replacement. Sourced from such reputable brands as Sierra or Quicksilver, our products are made of quality materials designed to resist the harsh marine environment they have to operate in. You can choose from seals and plugs specifically designed for propulsion assemblies by popular brands including Mercury, Evinrude, US Marine, Volvo Penta, and others.