A boat is only as secure as the trailer it sits on, and the Mercury Trailer Lock Assembly 8M0199679 is built to keep it right where it belongs. Whether at the marina, in storage, or parked at a roadside stop, a reliable trailer lock is an essential layer of security against theft and unauthorized towing. This Mercury OEM lock is engineered for a precise fit, providing dependable protection with durable, tamper-resistant construction.. Built for Strength & Security:. Heavy-Duty Materials - Designed to resist impact, cutting, and prying for long-term reliability.. Seamless Compatibility - Made to fit Mercury trailers for a snug, secure lock.. Weather-Resistant Finish - Corrosion-resistant materials prevent rust and wear from exposure to the elements.. Quick & Easy Use - Installs and removes in seconds without complicated steps.. Where It Makes a Difference:. Dock & Marina Security - Keeps your trailer protected in high-traffic areas.. Storage Protection - Prevents unauthorized towing whe