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Simply replace one of the stern drive mounting nuts with a McGard lock. Stern drive locks are fully machined from high quality stainless steel and through-hardened. This proven design features a free-spinning collar that turns if attacked by gripping tools without loosening the lock. Give yourself the best protection available against stern drive theft. Ask for McGard Marine Locks by name.

» Watch Installation Video




Stern Drive Locks Applications      
Photo Stern Drive Unit  Thread Size   Drive  Part No.     Details
7/16"-20 Single 74018  View
7/16"-20  *Twin 74019 View
 1/2"-20  Single 74022 View
 1/2"-20  *Twin 74023 View
 M12 x 1.25  Single 74024 View
  M12 x 1.25 *Twin 74025 View 
 5/8"-18  *Twin  74026  View

* Twin Drive sets include 2 locks and 1 key.

Access Keys Legend

Access Keys legend.
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