{"title":"Propeller Tools \u0026 Locks","description":null,"products":[{"product_id":"sierra-18-4459-prop-wrench-for-mercury-mariner-outboards-sterndrives-replaces-91-821887a1-fits-1-1-16-in-prop-nut","title":"Sierra 18-4459 Marine Prop Wrench for 1 1\/16 Inch Propeller Nut","description":"\u003cp\u003eThe Sierra 18-4459 Marine Prop Wrench is a purpose-built hand tool sized to fit a 1 1\/16 inch propeller nut, the size found on most sterndrives and on 4-cylinder and larger outboard motors. Instead of relying on an adjustable wrench or pliers that can slip and round off the nut's flats, this wrench is machined to the correct nut dimension for a secure, controlled grip during propeller removal and installation. That precision fit reduces the risk of damaging the nut or the prop shaft while servicing the lower unit.\u003c\/p\u003e\u003cp\u003eBuilt for regular use around salt and fresh water, the wrench is a straightforward addition to any boat owner's or marine technician's toolbox, making routine propeller swaps, inspections, and hub replacements easier to perform correctly the first time.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-4459\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Mercury Prop Hardware\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNut Size Compatibility:\u003c\/strong\u003e 1 1\/16 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Most sterndrives and 4-cylinder and larger outboards\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.56 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999875815\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFits a 1 1\/16 inch propeller nut\u003c\/li\u003e\n\u003cli\u003eFits most sterndrives\u003c\/li\u003e\n\u003cli\u003eFits 4-cylinder and larger outboard motors\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat nut size does the Sierra 18-4459 prop wrench fit?\u003c\/strong\u003e The Sierra 18-4459 is sized for a 1 1\/16 inch propeller nut.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat boats and engines is this prop wrench compatible with?\u003c\/strong\u003e It fits most sterndrives as well as 4-cylinder and larger outboard motors that use a 1 1\/16 inch propeller nut.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-4459 prop wrench weigh?\u003c\/strong\u003e This wrench weighs 0.56 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use an adjustable wrench instead of this tool?\u003c\/strong\u003e An adjustable wrench can slip or round off the flats on a 1 1\/16 inch propeller nut; the Sierra 18-4459 is machined to that exact size for a more secure grip during removal and installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is this tool used for?\u003c\/strong\u003e The Sierra 18-4459 prop wrench is used to loosen and tighten the propeller nut when removing or installing a boat propeller.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat finish does the Sierra 18-4459 have?\u003c\/strong\u003e It has a machined finish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this wrench made by Sierra or a third party?\u003c\/strong\u003e The 18-4459 prop wrench is a genuine Sierra part, identified by Sierra part number 18-4459.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this fit a 4-cylinder outboard?\u003c\/strong\u003e Yes, the Sierra 18-4459 is listed as fitting 4-cylinder and larger outboard motors with a 1 1\/16 inch propeller nut.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this wrench work on sterndrive propellers?\u003c\/strong\u003e Yes, the 18-4459 is compatible with most sterndrive applications using a 1 1\/16 inch propeller nut.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat comes in the box with the Sierra 18-4459?\u003c\/strong\u003e The Sierra 18-4459 is a single prop wrench tool.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988198371547,"sku":"SIE-18-4459","price":29.72,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-4459_lg__45799.1558126754.500.750.jpg?v=1785188151"},{"product_id":"attwood-11370-7-universal-prop-wrench-kit-fits-9-common-prop-nut-sizes-17-32-to-1-1-4","title":"Attwood 11370-7 Universal Prop Wrench Kit, Fits 17\/32 Inch to 1-1\/4 Inch Prop Nuts","description":"\u003cp\u003eThe Attwood 11370-7 Universal Prop Wrench Kit is a boat propeller wrench built to handle quick prop changes and maintenance at the dock or on the water. Instead of carrying a separate wrench for every prop nut size, this kit covers 9 of the most common prop nut sizes, from 17\/32 inch up to 1-1\/4 inch, in one compact tool. The wrench body is constructed from engineering composite resin, giving it a strong, lightweight build that resists corrosion in a marine environment. Because it is made from composite resin rather than metal, the wrench floats, so if it goes over the side during a prop swap it will not sink out of reach. The high visibility yellow finish makes the wrench easy to spot in a tackle box, on deck, or floating in the water. The kit uses a hex head style with a socket end for engaging prop nuts, and is sized to SAE (inch) measurement standards. It ships as a complete set including the wrench and 8 nuts, ready to store in a boat's tool kit or glove box for on-the-water prop maintenance.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Attwood\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 11370-7\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Yellow\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Composite Resin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Length:\u003c\/strong\u003e 7 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.04 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Style:\u003c\/strong\u003e Hex\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Style:\u003c\/strong\u003e Socket End\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJaw Capacity:\u003c\/strong\u003e 1.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasurement Standard:\u003c\/strong\u003e SAE (Inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits Prop Nut Sizes:\u003c\/strong\u003e 17\/32 inch to 1-1\/4 inch (9 common sizes)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Components:\u003c\/strong\u003e Wrench and 8 nuts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat prop nut sizes does the Attwood 11370-7 fit?\u003c\/strong\u003e The Attwood 11370-7 Universal Prop Wrench Kit fits 9 of the most common prop nut sizes, ranging from 17\/32 inch up to 1-1\/4 inch, covering the sizes found on most recreational boat propellers.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this prop wrench float if dropped overboard?\u003c\/strong\u003e Yes, because the 11370-7 wrench is made from engineering composite resin rather than metal, it floats, making it easier to recover if it is dropped in the water during a prop change.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the wrench made of?\u003c\/strong\u003e It is constructed from engineering composite resin, a material chosen for its lightweight strength and resistance to marine corrosion compared to a metal wrench.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat comes in the kit?\u003c\/strong\u003e The Attwood 11370-7 kit includes the wrench body and 8 nuts, giving you the pieces needed to work across the covered range of prop nut sizes in a single package.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow long is the wrench?\u003c\/strong\u003e The 11370-7 measures 7 inches in length.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the prop wrench kit weigh?\u003c\/strong\u003e The Attwood 11370-7 weighs 1.04 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy is the wrench bright yellow?\u003c\/strong\u003e High visibility yellow is used on the 11370-7 so the tool is easy to spot on deck, in a tackle box, or in the water if it is dropped.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat head and end style does the wrench use?\u003c\/strong\u003e The 11370-7 has a hex head style with a socket end designed to engage prop nuts directly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a universal wrench or sized for one prop nut only?\u003c\/strong\u003e It is a universal kit: rather than fitting a single nut size, the Attwood 11370-7 is designed to cover 9 common prop nut sizes in one tool.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat measurement system is the wrench sized in?\u003c\/strong\u003e The Attwood 11370-7 is sized to SAE (inch) measurements, not metric.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the jaw capacity of the wrench?\u003c\/strong\u003e The wrench has a jaw capacity of 1.25 inches, matching the top end of its 17\/32 inch to 1-1\/4 inch fitment range.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWho makes the 11370-7 prop wrench?\u003c\/strong\u003e The 11370-7 Universal Prop Wrench Kit is made by Attwood, a longtime manufacturer of marine accessories including lighting, fuel systems, and general boating hardware.\u003c\/p\u003e","brand":"Attwood","offers":[{"title":"Default Title","offer_id":48989663953115,"sku":"ATT-11370-7","price":16.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/att-11370-7__75202.1558181070.500.750.jpg?v=1785188066"},{"product_id":"attwood-10309-lock-n-stow-outboard-motor-support-trailering-transom-saver-lock-for-omc-bombardier-engines-up-to-100-hp-1989-present","title":"Attwood 10309 OMC Swivl-Eze Lock N' Stow Outboard Motor Lock for OMC\/Bombardier Motors up to 100 HP","description":"\u003cp\u003eThe Attwood 10309 OMC Swivl-Eze Lock N' Stow locks an outboard motor in the forward position while trailering, greatly reducing the effects of road shock on the motor and its mount. Unlike methods that tie the engine's lower unit directly to the trailer, this design avoids putting excessive pressure on hydraulic seals and prevents the unsightly scuff marks that can result from cinching the lower unit down. The compact, small-footprint mount stores easily in almost any boat compartment when not in use, so it does not have to stay attached to the transom during normal operation.\u003c\/p\u003e\u003cp\u003eBuilt from black powder-coated steel with stainless steel pins, the Lock N' Stow is designed for durability in a marine trailering environment and is made in the USA. It mounts to the transom and is rated for OMC\/Bombardier outboard motors up to 100 horsepower, covering motors from 1989 to present.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Attwood\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 10309\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 4.5125 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Black powder-coated steel, stainless steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Type:\u003c\/strong\u003e Transom Mount\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Horsepower:\u003c\/strong\u003e 100 horsepower\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Engine Brand:\u003c\/strong\u003e OMC\/Bombardier\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Years:\u003c\/strong\u003e 1989 to Present\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Type:\u003c\/strong\u003e 4 Stroke\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation Mode:\u003c\/strong\u003e Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Type:\u003c\/strong\u003e Gasoline\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 014599103097\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eOMC\/Bombardier outboard motors, up to 100 horsepower, 1989 to present\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Attwood 10309 Lock N' Stow do?\u003c\/strong\u003e It locks an outboard motor in the forward position while trailering, which greatly reduces the effects of road shock on the motor during transport.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Lock N' Stow tie the lower unit to the trailer like a strap does?\u003c\/strong\u003e No. The Attwood 10309 does not tie the engine's lower unit to the trailer, which eliminates the excessive pressure on hydraulic seals and the unsightly scuff marks that can result from that method.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat horsepower motors does the Attwood 10309 fit?\u003c\/strong\u003e The Lock N' Stow is rated for OMC\/Bombardier outboard motors up to 100 horsepower.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat years of OMC\/Bombardier motors does this fit?\u003c\/strong\u003e Attwood lists the 10309 Lock N' Stow as compatible with OMC\/Bombardier outboard motors from 1989 to present.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Lock N' Stow made of?\u003c\/strong\u003e It is constructed of black powder-coated steel with stainless steel pins for corrosion resistance in a marine environment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Attwood 10309 weigh?\u003c\/strong\u003e The Attwood 10309 Lock N' Stow weighs 4.5125 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan the Lock N' Stow be stored when not trailering?\u003c\/strong\u003e Yes, its small compact mount design allows it to be easily stored in almost any boat compartment when it is not needed.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere is the Attwood 10309 manufactured?\u003c\/strong\u003e The Lock N' Stow is made in the USA.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the Attwood 10309 Lock N' Stow?\u003c\/strong\u003e It is finished in black powder-coated steel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Attwood 10309 manually operated?\u003c\/strong\u003e Yes, the Lock N' Stow operation mode is manual.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included with the Attwood 10309?\u003c\/strong\u003e The Attwood 10309 Lock N' Stow ships with the main lock component only.\u003c\/p\u003e","brand":"Attwood","offers":[{"title":"Default Title","offer_id":48989663985883,"sku":"ATT-10309","price":133.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/att-10309_large__37126.1558177234.500.750.jpg?v=1785188308"},{"product_id":"mcgard-74039-propeller-lock-3-4-16-thread-mercruiser-alpha-i-bravo-i-omc-cobra-mercury-70-hp-johnson-evinrude-150-hp-outboards","title":"McGard 74039 Propeller Lock, 3\/4-16 Thread - MerCruiser Alpha I\/Bravo I, OMC Cobra, Mercury 70 HP+, Johnson\/Evinrude 150 HP+ Outboards","description":"\u003cp\u003eThe McGard 74039 propeller lock protects your outboard or sterndrive propeller against theft by replacing the standard prop nut with a locking nut secured by a unique key. The lock uses McGard's patented free-spinning collar design: if a thief attempts to remove it with pliers, a wrench, or any other gripping tool, the outer collar simply spins in place instead of turning the lock, so the propeller stays secured. The 74039 is built from naval brass and hardened stainless steel for corrosion resistance and long-term durability in a marine environment, and it is sized for a 3\/4-16 thread.\u003c\/p\u003e\u003cp\u003eThis lock is designed for 3\/4-16 thread propeller shafts on a range of sterndrive and outboard engines, including MerCruiser Alpha I and Bravo I (Stainless Steel, incl. X and XR), TRS, and Vazer sterndrives, OMC Cobra and King Cobra sterndrives, Mercury\/Mariner 70 HP and larger outboards, Mercury Bigfoot 40 HP, 50 HP, and 60 HP (4 stroke) outboards, Optimax 75 HP and larger, Verado 135 HP and larger, and Johnson\/Evinrude 150 HP and larger (2 stroke) outboards. Each lock comes with a plastic cap, the propeller lock itself, a matching key, and a washer, giving you everything needed to install it and secure your propeller right out of the box.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e McGard\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 74039\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Propeller Lock\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size:\u003c\/strong\u003e 3\/4-16\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Naval brass and hardened stainless steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 6.9 x 5.8 x 1.4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.7 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Components:\u003c\/strong\u003e 1 plastic cap, 1 propeller lock, 1 propeller lock key, 1 washer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 083509740394\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSterndrive Engines: MerCruiser Alpha I, Bravo I Stainless Steel (incl. X and XR), TRS, Vazer\u003c\/li\u003e\n\u003cli\u003eOMC Cobra and King Cobra\u003c\/li\u003e\n\u003cli\u003eMercury\/Mariner 70 HP and larger (ex. 225 HP 4 stroke before 2005)\u003c\/li\u003e\n\u003cli\u003eMercury Bigfoot 40 HP, 50 HP, 60 HP (4 stroke)\u003c\/li\u003e\n\u003cli\u003eOptimax 75 HP and larger\u003c\/li\u003e\n\u003cli\u003eVerado 135 HP and larger\u003c\/li\u003e\n\u003cli\u003eJohnson\/Evinrude 150 HP and larger (2 stroke)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the McGard 74039 propeller lock fit?\u003c\/strong\u003e The 74039 fits 3\/4-16 thread propeller shafts on MerCruiser Alpha I and Bravo I (Stainless Steel, incl. X and XR), TRS, and Vazer sterndrives, OMC Cobra and King Cobra sterndrives, Mercury\/Mariner 70 HP and larger outboards, Mercury Bigfoot 40 HP, 50 HP, and 60 HP (4 stroke) outboards, Optimax 75 HP and larger, Verado 135 HP and larger, and Johnson\/Evinrude 150 HP and larger (2 stroke) outboards.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does the McGard propeller lock prevent theft?\u003c\/strong\u003e It replaces the standard prop nut with a locking nut fitted with a free-spinning outer collar. If someone tries to remove it with pliers, a wrench, or any other gripping tool, the collar spins freely instead of turning the lock, so the 74039 stays secured to the shaft.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the thread size on the 74039 propeller lock?\u003c\/strong\u003e The McGard 74039 is sized for a 3\/4-16 thread.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the McGard 74039 made from?\u003c\/strong\u003e It is constructed of naval brass and hardened stainless steel, chosen for corrosion resistance and durability in a marine environment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat comes in the box with the 74039 propeller lock?\u003c\/strong\u003e Each McGard 74039 package includes a plastic cap, the propeller lock, a matching propeller lock key, and a washer.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 74039 fit MerCruiser Alpha One and Bravo One outdrives?\u003c\/strong\u003e Yes, the McGard 74039 is designed for MerCruiser Alpha I and Bravo I sterndrives, including the Stainless Steel, X, and XR versions, along with TRS and Vazer sterndrives.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the McGard 74039 propeller lock?\u003c\/strong\u003e The 74039 is black.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the McGard 74039 weigh?\u003c\/strong\u003e The 74039 propeller lock weighs 0.7 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 74039 work on a Johnson or Evinrude outboard?\u003c\/strong\u003e It is designed for Johnson\/Evinrude outboards of 150 HP and larger (2 stroke).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 74039 the same lock used on McGard outboard motor and stern drive locks?\u003c\/strong\u003e The 74039 propeller lock uses the same patented free-spinning collar design as McGard's stern drive and outboard motor locks, applied specifically to securing the propeller.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the McGard 74039?\u003c\/strong\u003e The 74039 measures 6.9 x 5.8 x 1.4 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 74039 fit Mercury Optimax and Verado engines?\u003c\/strong\u003e Yes, it is designed for Mercury Optimax 75 HP and larger and Verado 135 HP and larger outboards.\u003c\/p\u003e","brand":"McGuard","offers":[{"title":"Default Title","offer_id":49028238934235,"sku":"MCG-74039","price":76.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/MCG-74039_lg__33654.1558139798.500.750.jpg?v=1785165227"},{"product_id":"mcgard-74040-marine-propeller-lock-m18-x-1-5-thread-fits-honda-yamaha-suzuki-johnson-evinrude","title":"McGard 74040 Marine Propeller Lock, M18 x 1.5 Thread, Fits Honda, Yamaha, Suzuki, Johnson\/Evinrude","description":"\u003cp\u003eThe McGard 74040 Marine Propeller Lock protects your outboard motor or stern drive propeller against theft with the same patented locking design used on McGard's stern drive and outboard motor locks. The lock uses a free-spinning outer collar that turns freely if a thief attacks it with pliers, vice grips, or other gripping tools, so the lock cannot be loosened or removed without the matching key. This provides continuous 24 hour protection whether the boat is in use, in storage, or in transit.\u003c\/p\u003e\u003cp\u003eThe 74040 is built from stainless steel for durable, corrosion-resistant performance in a marine environment and features an M18 x 1.5 thread size with an overall lock length of 1.025 inches and a 1-1\/16 inch hex size. Each lock set includes one propeller lock, one key, one washer, and one plastic cap, so everything needed for installation is in the box.\u003c\/p\u003e\u003cp\u003eThis propeller lock fits all Yamaha stern drives, and is designed for outboard motors including Honda 75 hp and larger, Yamaha 115 hp and larger, Suzuki 40 hp and larger, and Johnson\/Evinrude 150 hp and larger. Always confirm your propeller's thread size and hex dimensions against the M18 x 1.5 specification before ordering.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e McGard\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 74040\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size:\u003c\/strong\u003e M18 x 1.5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Lock Length:\u003c\/strong\u003e 1.025 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHex Size:\u003c\/strong\u003e 1-1\/16 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Components:\u003c\/strong\u003e 1 Propeller Lock, 1 Key, 1 Washer, 1 Cap\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Pieces:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Dimensions:\u003c\/strong\u003e 1 x 6 x 8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 2 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 083509740400\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eYamaha stern drives - All\u003c\/li\u003e\n\u003cli\u003eHonda outboard motors - 75 hp and larger\u003c\/li\u003e\n\u003cli\u003eYamaha outboard motors - 115 hp and larger\u003c\/li\u003e\n\u003cli\u003eSuzuki outboard motors - 40 hp and larger\u003c\/li\u003e\n\u003cli\u003eJohnson\/Evinrude outboard motors - 150 hp and larger\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat propeller thread size does the McGard 74040 fit?\u003c\/strong\u003e The McGard 74040 propeller lock is sized for an M18 x 1.5 thread, with an overall lock length of 1.025 inches and a 1-1\/16 inch hex size.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich outboard motors and stern drives is the 74040 designed for?\u003c\/strong\u003e It fits all Yamaha stern drives, plus outboard motors from Honda 75 hp and larger, Yamaha 115 hp and larger, Suzuki 40 hp and larger, and Johnson\/Evinrude 150 hp and larger.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the McGard 74040 propeller lock made from?\u003c\/strong\u003e The 74040 is made from stainless steel for corrosion resistance in a marine environment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat comes in the box with the 74040 propeller lock?\u003c\/strong\u003e Each McGard 74040 set includes one propeller lock, one key, one washer, and one plastic cap.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does the McGard 74040 prevent theft?\u003c\/strong\u003e It uses a free-spinning outer collar that turns if attacked with pliers or gripping tools, so the lock cannot be loosened or removed without the matching key, giving 24 hour theft protection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan the McGard 74040 be used on a Mercury or Mercruiser propeller?\u003c\/strong\u003e No. The 74040 is designed for Yamaha stern drives and for Honda, Yamaha, Suzuki, and Johnson\/Evinrude outboard motors within the stated horsepower ranges; McGard offers a separate propeller lock model for MerCruiser, Mercury, OMC, and Johnson\/Evinrude applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes one McGard 74040 key work on more than one lock?\u003c\/strong\u003e Each 74040 lock ships as a set of one lock with its own matching key, washer, and cap.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the McGard 74040 propeller lock weigh?\u003c\/strong\u003e The McGard 74040 weighs 2 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the McGard 74040 propeller lock?\u003c\/strong\u003e The 74040 has a black finish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the McGard 74040 fit a Suzuki outboard under 40 hp?\u003c\/strong\u003e No. The 74040 is designed for Suzuki outboard motors of 40 hp and larger.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the McGard 74040 genuine McGard, not aftermarket?\u003c\/strong\u003e Yes, the 74040 is a genuine McGard-manufactured propeller lock, model number 74040.\u003c\/p\u003e","brand":"McGuard","offers":[{"title":"Default Title","offer_id":49028238999771,"sku":"MCG-74040","price":76.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/MCG-74040_lg__57248.1558116519.500.750.jpg?v=1785165227"},{"product_id":"mcgard-outboard-motor-lock-74036-1-2-inch-20-thread-fits-mercury-mariner-40-hp-and-suzuki-150-300-hp","title":"McGard Outboard Motor Lock 74036, 1\/2 inch-20 Thread, Fits Mercury\/Mariner 40 HP+ and Suzuki 150-300 HP","description":"\u003cp\u003eThe McGard Outboard Motor Lock (part number 74036) is a security lock designed to protect an outboard motor from theft by replacing one of the mounting nuts that holds the outboard onto the boat transom. Once installed, a free-spinning collar turns freely if gripping tools are used to try to remove it, so the lock resists wrench and pliers attacks without loosening. The lock is fully machined from stainless steel and through-hardened for durability in a marine environment. It uses a 1\/2 inch - 20 thread size and a 5\/8 inch hex size, with an overall lock length of 0.750 inch. The set includes 1 lock, 1 key, and 1 thread lock adhesive to help keep the lock secured in place; the black rubber cap shown on some outboard motor locks is not included with this lock. This McGard lock is designed for Mercury\/Mariner outboard motors of 40 hp and larger (2 stroke), Mercury outboard motors of 25 hp and larger (4 stroke), and Suzuki outboard motors from 150 hp to 300 hp. It is backed by a 90 day manufacturer warranty and is intended for boat owners who want an affordable, straightforward way to deter opportunistic outboard motor theft at the dock or on a trailer.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e McGard\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 74036\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 083509740363\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size:\u003c\/strong\u003e 1\/2 inch - 20\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHex Size:\u003c\/strong\u003e 5\/8 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Lock Length:\u003c\/strong\u003e 0.750 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSet Includes:\u003c\/strong\u003e 1 lock, 1 key, 1 thread lock adhesive\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Type:\u003c\/strong\u003e Transom Mount\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Type:\u003c\/strong\u003e Gasoline\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Horsepower:\u003c\/strong\u003e 300 horsepower\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 2 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 90 days\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMercury\/Mariner outboard motors, 40 hp and larger (2 stroke)\u003c\/li\u003e\n\u003cli\u003eMercury outboard motors, 25 hp and larger (4 stroke)\u003c\/li\u003e\n\u003cli\u003eSuzuki outboard motors, 150 hp to 300 hp\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the McGard 74036 outboard motor lock used for?\u003c\/strong\u003e The McGard 74036 replaces one of the mounting nuts holding an outboard motor onto the boat transom, locking the bolt in place to prevent the outboard from being removed by thieves.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich outboard motors fit the McGard 74036 lock?\u003c\/strong\u003e This lock is designed for Mercury\/Mariner outboard motors of 40 hp and larger (2 stroke), Mercury outboard motors of 25 hp and larger (4 stroke), and Suzuki outboard motors from 150 hp to 300 hp.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat thread size and hex size does the McGard 74036 use?\u003c\/strong\u003e The McGard 74036 outboard motor lock has a 1\/2 inch - 20 thread size and a 5\/8 inch hex size, with an overall lock length of 0.750 inch.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included in the box with the McGard 74036?\u003c\/strong\u003e The McGard 74036 set includes 1 lock, 1 key, and 1 thread lock adhesive. The black rubber cap shown with some McGard locks is not included.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the McGard 74036 outboard motor lock made of stainless steel?\u003c\/strong\u003e Yes, the McGard 74036 is fully machined from stainless steel and through-hardened for corrosion resistance and strength in marine use.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does the McGard 74036 prevent theft?\u003c\/strong\u003e A free-spinning collar on the McGard 74036 turns freely if gripping tools such as pliers or wrenches are used on it, so the lock cannot be loosened by force.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the McGard 74036 outboard motor lock weigh?\u003c\/strong\u003e The McGard 74036 weighs 2 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the McGard 74036 come with a warranty?\u003c\/strong\u003e Yes, the McGard 74036 outboard motor lock is covered by a 90 day manufacturer warranty.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan the McGard 74036 be installed without special tools?\u003c\/strong\u003e Installation involves replacing one of the existing mounting nuts on the outboard motor with the McGard 74036 locking nut using the included hex size and key.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the McGard 74036 fit a 25 hp 2-stroke Mercury outboard?\u003c\/strong\u003e No. The McGard 74036 is designed for Mercury\/Mariner 2-stroke outboards of 40 hp and larger; for 4-stroke Mercury outboards it fits 25 hp and larger.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the McGard 74036 fit Suzuki outboards under 150 hp?\u003c\/strong\u003e No, the McGard 74036 is designed for Suzuki outboard motors in the 150 hp to 300 hp range.\u003c\/p\u003e","brand":"McGuard","offers":[{"title":"Default Title","offer_id":49028239032539,"sku":"MCG-74036","price":39.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/MIC-74036_lg__75075.1558116441.500.750.jpg?v=1785165227"},{"product_id":"panther-outboard-motor-lock-for-turnbuckle-mounted-engines-carbon-steel-tubing","title":"Panther Outboard Motor Lock for Turnbuckle-Mounted Engines, Carbon Steel Tubing","description":"\u003cp\u003eThe Panther Outboard Motor Lock is a security device built to protect turnbuckle-mounted outboard engines from theft. Constructed of heavy-duty carbon steel tubing with a vinyl coating, the lock slides easily over the motor lock downs on the transom bracket and is secured in place with a hardened brass padlock. The padlock sits in a recessed position within the lock tube, making it difficult to access with bolt cutters or similar tools, while built-in noise dampeners reduce rattling caused by engine vibration or trailering. Two keys are included so the boat owner has a spare on hand.\u003c\/p\u003e\u003cp\u003eThis lock is designed specifically for outboards mounted with a turnbuckle-style transom clamp, and the vinyl-clad steel tubing helps resist corrosion from marine exposure while protecting the finish of the motor mount hardware. It is a straightforward add-on security measure for boat owners who store or trailer their outboard-powered boats in unsecured locations.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Panther\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 758000\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Outboard Motor Lock\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Carbon steel tubing with vinyl coating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocking Mechanism:\u003c\/strong\u003e Hardened brass padlock, recessed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKeys Included:\u003c\/strong\u003e Two\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNoise Reduction:\u003c\/strong\u003e Built-in noise dampeners\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Compatibility:\u003c\/strong\u003e Turnbuckle-mounted engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 628309284961\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.3 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eFits outboard engines that use a turnbuckle-style transom mount.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Panther Outboard Motor Lock fit?\u003c\/strong\u003e The Panther Outboard Motor Lock (part number 758000) is designed to fit outboard engines that use a turnbuckle-style transom mount, sliding over the motor lock downs on that type of bracket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Panther 758000 motor lock made of?\u003c\/strong\u003e It is made of heavy-duty carbon steel tubing with a vinyl coating, which adds corrosion resistance and protects the finish of the mounting hardware it covers.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the lock come with keys?\u003c\/strong\u003e Yes, two keys are included with the Panther Outboard Motor Lock so the owner can keep a spare.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does the padlock resist cutting or tampering?\u003c\/strong\u003e The padlock on the 758000 motor lock is recessed within the vinyl-clad steel tube, which limits access for bolt cutters and similar cutting tools.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the lock rattle while trailering or underway?\u003c\/strong\u003e No, the Panther Outboard Motor Lock includes built-in noise dampeners that reduce rattling caused by vibration during operation or transport.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat type of padlock is used with this motor lock?\u003c\/strong\u003e A hardened brass padlock is used to secure the Panther 758000, chosen for its resistance to cutting and prying.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Panther Outboard Motor Lock weigh?\u003c\/strong\u003e The Panther Outboard Motor Lock (758000) weighs 1.3 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this lock suitable for engines mounted without a turnbuckle bracket?\u003c\/strong\u003e The Panther 758000 is built specifically to slide over motor lock downs on turnbuckle-mounted engines, so its fit depends on that mounting style.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included in the box with this motor lock?\u003c\/strong\u003e The package includes the vinyl-clad steel lock tube, the hardened brass padlock, and two keys.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the vinyl coating protect against saltwater corrosion?\u003c\/strong\u003e The vinyl coating on the carbon steel tubing of the 758000 motor lock is intended to add durability and corrosion resistance for marine environments.\u003c\/p\u003e","brand":"Panther","offers":[{"title":"Default Title","offer_id":49028256956635,"sku":"PAN-758000","price":33.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/PAN-758000__35735.1747363872.500.750.jpg?v=1785165325"},{"product_id":"mcgard-stern-drive-locks-single-twin-sets-for-mercruiser-omc-cobra-volvo-drives","title":"McGard Stern Drive Locks - Single \u0026 Twin Sets for Mercruiser, OMC Cobra, Volvo Drives","description":"\u003cp\u003eMcGard stern drive locks protect your outdrive from theft while trailering, docking, or storing your boat. Machined from high-quality stainless steel with McGard's signature free-spinning collar design, these locks replace one of your existing stern drive mounting nuts and defeat pliers, wrenches, and other gripping tools -- if a thief tries to force it, the collar just spins freely instead of turning the lock. Available as a single lock for one stern drive or a twin lock set for boats with dual outdrives, this line covers the most common stern drive threads used on Mercruiser Alpha and Bravo I-III drives, OMC Cobra and King Cobra drives, and Volvo Penta SX and DP-S drives.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBrand: McGard\u003c\/li\u003e\n\u003cli\u003eThread Size: 7\/16-20\u003c\/li\u003e\n\u003cli\u003eHex Size: 5\/8 inch\u003c\/li\u003e\n\u003cli\u003eOverall Lock Length: 0.750 inches\u003c\/li\u003e\n\u003cli\u003eMaterial: Stainless steel, through-hardened\u003c\/li\u003e\n\u003cli\u003eExterior Finish: Brushed\u003c\/li\u003e\n\u003cli\u003eSpecial Features: Free-spinning collar, theft-resistant design\u003c\/li\u003e\n\u003cli\u003eWeight (single): 1.5 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSizes \u0026amp; Options\u003c\/h3\u003e\u003cp\u003eChoose the Single Lock if your boat has one stern drive, or the Twin Lock Set if you run dual outdrives -- the twin set includes two complete lock, key, and cap assemblies so both drives get matching protection from a single purchase. Both configurations share the same 7\/16-20 thread and 5\/8 inch hex, fitting Mercruiser Alpha\/Bravo I-III, OMC Cobra\/King Cobra, and Volvo SX\/DP-S drives.\u003c\/p\u003e","brand":"McGuard","offers":[{"title":"Single Lock","offer_id":49049212584155,"sku":"MCG-74018","price":35.02,"currency_code":"USD","in_stock":true},{"title":"Twin Lock Set","offer_id":49049212616923,"sku":"MCG-74019","price":53.71,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/MCG-74018_lg__96517.1722375300.500.750_35793b9b-5e2c-489a-8bcf-447725042df0.jpg?v=1785455600"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/collections\/PAN-758000__35735.1747363872.500.750.jpg?v=1785356959","url":"https:\/\/www.goodvibesmarina.com\/collections\/gvcat-propellers-drive-lower-unit-propellers-propeller-tools-locks.oembed","provider":"Good Vibes Marina","version":"1.0","type":"link"}