Description
Lower Unit Gear Lube Drain and Fill Hole Screw and Seal 79953Q04 is used with 3/8 - 16 drain/fill hole screw on all MerCruiser sterndrives, Mercury and Mariner outboards except the Verado series. It is very important to use the seal to make sure the drain/fill hole screw seats properly to retain the gear lube in the gear case and keep damage causing water out of the gear case.
- Used with 3/8-16 drain and fill hole screw on all MerCruiser sterndrives, Mercury 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 serious damage
- This is the non-magnetic plug screw version