Home Towing & Transportation Trailering Motor Locks Mercury Outboard Locking System (Black, 3-1/8” Yoke, 7-7/16” Transom) MotorMate Mercury Outboard Locking System (Black, 3-1/8” Yoke, 7-7/16” Transom) $166.49 Mercury Outboard Locking System (Black, 3-1/8” Yoke, 7-7/16” Transom) quantity Add to cart