Mcgard Stern Drive Lock Set 7/16" Single Merc/OMC 74018 | 24

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Mcgard Stern Drive Lock Set Single #371-74018 Mercruiser®; Alpha, Bravo I-III (Incl. X & XR), Blackhawk, OMC Cobra & King Cobra, and Volvo SX & DP-S stern drives. Thread: 7/16" Sim ply replace one of the sterndrive mounting nuts for theft protection. Stainless steel with free-spinning collar that will turn if attacked by gripping tools. No assembly required. 74019 twin drive set includes 2 locks and 1 key. Show more