Engineered Marine Products Drain Screw Gasket

Engineered Marine Products drain screw gaskets (also called drain plug gaskets, gearcase drain seals or lower unit drain screw washers) seal the drain and fill screws on marine drive components. They are aftermarket replacements for the original seals on outboard and sterndrive gearcases, jet drive housings, hydraulic pump assemblies and similar applications.

Key Features:

• Creates a leak-resistant seal under the drain or fill screw head to keep gear lube in and water out
• Replaces worn, flattened or damaged gaskets during routine gear oil changes
• Made as a direct replacement for OEM-style drain screw gaskets
• Cross-references to common OEM and aftermarket gasket part numbers, listed on each individual part number
• Simple to install: remove the old gasket, fit the new one on the screw and torque to the manufacturer's specification

Replace the drain screw gasket every time you service gearcase lubricant. This helps protect the gears and bearings from water intrusion. Choose the specific part number that matches your application from the options on this page.