Used with three/eight – 16 drain and fill hollow screw on all MerCruiser stern drives, Mercury and Mariner outboards with the exception of the Verado collection.
Will have to use this seal to correctly seat the drain/fill hollow screw within the decrease unit.
Is helping save you tools lube from leaking out and water from seeping in to the tools case inflicting severe harm.
That is the non-magnetic plug screw model.
Produced by means of Mercury Marine to our stringent unique apparatus producer specs to maximise the efficiency of your Mercury and Mariner outboard or MerCruiser stern force