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Outboard Motor Locks

Theft Protection for Outboard Motors.

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.
OUTBOARD MOTOR THREAD PART #
Mercury/Mariner 40 HP and larger (2 stroke)
Mercury 25 HP and larger (4 stroke)
Suzuki 150 - 300 HP		 1/2-20 74036
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)		 M12 x 1.25 74037
Johnson/Evinrude 40 HP and larger (2 stroke) 1/2-13 74038
*Fits most of the following outboards:
  • Honda 8-20 HP
  • Johnson/Evinrude 6-30 HP
  • Mercury/Mariner 8-25 HP
  • Nissan 8-18 HP
  • Suzuki 8-30 HP
  • Tohatsu 8-18 HP
  • Yamaha 8-25 HP (Lock may fit some 2 strokes up to 30 HP, verify hole diameter)
*Will fit other small outboards with a 5/16" hole in the transom bracket for mounting the motor (stainless steel bolt included in set).		 5/16-18 74049
  • 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)
 M12 x 1.75 74054

McGard is not responsible for changes to thread sizes by the manufacturer. Verify the correct thread size and application before installing locks.