Product Description
- Used with 3/8"-16 drain and fill hole screw on all Mercruiser stern drive, Mercruiser and Mariner outboards except the Verado series
- Must use this seal to properly seat the drain/fill hole screw in the lower unit
- Helps prevent gear lube from leaking out and water from seeping in to the gear case causing series damage
- The magnet imbedded in the screw attracts any ferrous metal shaving to keep them from suspension in the gear lube and causing damage to gears
