The gear lube drain screw washer 8M0183616 is a critical rubber-coated stainless steel seal for MerCruiser sterndrives and Mercury outboards. This washer ensures a watertight seal for 3/8-16 gearcase drain and fill holes. Catastrophic damage can occur if water infiltrates the gearcase, making it essential to keep spares on hand and replace them during every gear lube change.
- Fits Mercury/Mariner outboards and MerCruiser drives with 3/8-16 holes
- Rubber-coated stainless steel for a superior, watertight seal
- Prevents catastrophic gearcase failure from water infiltration
- Essential to replace every time the gear lube is changed
- Produced to Mercury Marine original equipment manufacturer specifications
