Defeat stern drive thieves with the McGard Stern Drive Propeller Lock for Yamaha. It's made of naval brass and hardened stainless steel and features a free-spinning collar that turns if attacked with gripping tools. It's easy to use and install and provides added peace of mind and protection for your valuable marine investment.

• For all Yamaha motors
• 24-hour theft protection in & out of the water
• Made of naval brass & hardened stainless steel
• Free-spinning collar turns if gripping tools are applied
• M18 x 1.5 thread size
• McGard part number - 74040
• Weight: Approximately .63 pounds
• Shipping Dimensions: Approximately 8 x 6 x 2 inches.