Home Towing & Transportation Trailering Motor Locks Mercury Outboard Locking System (Black, 4-9/16″ Yoke, 7-7/16” Transom) MotorMate Mercury Outboard Locking System (Black, 4-9/16″ Yoke, 7-7/16” Transom) $166.49 Mercury Outboard Locking System (Black, 4-9/16" Yoke, 7-7/16” Transom) quantity Add to cart