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Outboard Motor Locks

Theft Protection for Outboard Motors.


 Outboard Motor Lock Insert

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 MOTORTHREADPART #
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 8-30 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.

5 Item(s)

per page
Set Descending Direction
  1. McGard 74036 Marine Single Outboard Motor Lock Set (1/2-20 Thread Size) - Mercury - Set of 1
    McGard 74036 Marine Single Outboard Motor Lock Set (1/2-20 Thread Size) - Mercury - Set of 1

    Part No. 74036

    $40.10
    Product Link
  2. McGard 74037 Marine Single Outboard Motor Lock Set (M12x1.25 Thread Size) - Yamaha/Honda - Set of 1
    McGard 74037 Marine Single Outboard Motor Lock Set (M12x1.25 Thread Size) - Yamaha/Honda - Set of 1

    Part No. 74037

    $40.10
    Product Link
  3. McGard 74038 Marine Single Outboard Motor Lock Set (1/2-13 Thread Size) - Johnson/Evinrude - Set of 1
    McGard 74038 Marine Single Outboard Motor Lock Set (1/2-13 Thread Size) - Johnson/Evinrude - Set of 1

    Part No. 74038

    $40.10
    Product Link
  4. McGard 74049 Marine Single Outboard Motor Lock Set (5/16-18 Thread Size) - Set of 1
    McGard 74049 Marine Single Outboard Motor Lock Set (5/16-18 Thread Size) - Set of 1

    Part No. 74049

    $40.10
    Product Link
  5. McGard 74054 Marine Single Outboard Motor Lock Set (M12x1.75 Thread Size) - Suzuki/Nissan/Tohatsu - Set of 1
    McGard 74054 Marine Single Outboard Motor Lock Set (M12x1.75 Thread Size) - Suzuki/Nissan/Tohatsu - Set of 1

    Part No. 74054

    $40.10
    Product Link

5 Item(s)

per page
Set Descending Direction
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Shopping Options
Thread Size
  1. 1/2-131 item
  2. 1/2-201 item
  3. 5/16-181 item
  4. M12 x 1.251 item
  5. M12 x 1.751 item
Hex Size
  1. 5/85item