B129 McGard 74039 Marine Propeller Lock Set (3/4-16 Thread Size). Naval Brass and Hardened Stainless Steel. Fits; Mercury/MerCruiser Alpha I, Bravo I (Incl. X & XR), TRS, Vazer, OMC Cobra and King Cobra, Mercury/Mariner 70 HP and larger (Ex. 225 HP 4-Stroke before 2005), Mercury Bigfoot 40 HP and larger, Verado 135 HP and Larger, Johnson/Evinrude 150 HP and larger (2 stroke).  NOS New Old Stock is in the original UNOPENED packaging. Comes as pictured. Please verify the part number is correct for your application. Thank you for shopping Madlin Marine Parts.