Mcgard outboard lock is an outboard motor lock that fits the most common motors. The bolt is secured through the transom and locked with a special nut that requires a special tool.
For bolt M12 x 1.75>
· Nissan 25 HP and larger, · Suzuki 25 - 140 HP (2004 and earlier), · Tohatsu 25 HP and larger, · Johnson/Evinrude 40 HP and larger (4 stroke)