Mcgard O/B Motor Lock Merc 40hp & Up 74036 | 24 Wake Hardware & Fins Application: Mercury Thunderbolt HEI -

Application: Mercury Thunderbolt HEI - V-8

LP10SB license plate bracket

Low profile

25ft split four conductor harness

Mcgard O/B Motor Lock Merc 40hp & Up 74036 | 24 Wake Hardware & Fins Application: Mercury Thunderbolt HEI -Mcgard Outboard Motor Lock #371 74036 Mercury Mariner 40hp and Up(1 2" 20 Thread Size) Designed to lock the outboard onto the transom, simply replace one of the mounting nuts with a McGard locking nut. A free spinning collar turns if attacked by gripping tools, protecting against theft and inconvenience. #74049 fits most of the motors listed and will fit other small outboards with a 5 16" hole in the transom bracket for mounting the motor.)