McGard outboard motor locks are designed to lock the outboard onto the transom of the boat.
Simply replace one of the mounting nuts with a McGard locking nut.

McGard outboard motor locks are identical in quality and construction to our stern drive locks.
A free-spinning collar turns if attacked by gripping tools, protecting you against costly outboard motor theft and the resulting inconvenience.

Fits the following Outboards:
Yamaha 40 HP and larger (2 stroke)
Yamaha 30 HP and larger (4 stroke)
Honda 40 HP and larger
Suzuki 25 - 140 HP (2005 and newer)

Description:
Single Motor Stainless Steel Lock
M12 x 1.25 Thread
Model#74037