Sierra 118-46981-9 Drain Fill Washer for Mercury and Yamaha Outboards (50-Pack)

The Sierra 118-46981-9 drain fill washer is a premium aftermarket replacement gasket designed specifically for lower unit drain and oil level screws on Mercury Marine and Yamaha outboard motors. This essential maintenance component ensures proper sealing during oil changes and lower unit service, preventing leaks and protecting your marine engine investment.

Key Features:

• Package of 50 high-quality drain fill washers for multiple service intervals
• Engineered to meet or exceed OEM specifications for reliable performance
• Designed for use with Sierra magnetic drain screws (18-2374, 18-23741-9) and standard drain screws (18-2371, 18-23711-9)
• Built from durable materials to withstand harsh marine environments
• Direct replacement for multiple OEM part numbers

OEM Cross-References: Replaces Mercury Marine 27-81987M and 27-81987, Yamaha Sterndrive 90430-08020-00, 604-45342-00-00, and 90430-08801-00, and Mallory 9-60100. Always verify fitment using your engine model or serial number before installation.

Sierra International is a trusted leader in aftermarket marine engine parts, offering premium-quality replacements backed by rigorous engineering standards. These drain fill washers are essential for proper lower unit maintenance and should be replaced during every oil change to ensure optimal sealing performance.