{"product_id":"74039-marine-propeller-lock-set-for-mercury-mercruiser-omc-3-4-16-thread-size","title":"74039 Marine Propeller Lock Set For Mercury MerCruiser OMC 3\/4\"- 16 Thread Size","description":"\u003ch2\u003eMarine Propeller Lock Set for Mercury, MerCruiser, and OMC\u003c\/h2\u003e\u003cp\u003eThis marine propeller lock set is a security device that replaces threaded prop nut hardware with a locking system compatible with 3\/4\"-16 shafts, matching part number 74039.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThe marine propeller lock set for Mercury, MerCruiser, and OMC secures your propeller against theft with a durable keyed lock. Designed for 3\/4\"-16 threaded stern drive and outboard shafts, this lock set replaces the standard prop nut and washer. It's an easy way for boat owners to add security to their investment without altering the propeller or shaft.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMachined from corrosion-resistant stainless steel and brass to withstand saltwater and freshwater exposure\u003c\/li\u003e\n\u003cli\u003eFeatures a recessed lock face that is difficult to grip with removal tools\u003c\/li\u003e\n\u003cli\u003eIncludes a matched key set for simple installation and removal by the owner\u003c\/li\u003e\n\u003cli\u003eMaintains proper clamping force to keep the propeller hub seated correctly\u003c\/li\u003e\n\u003cli\u003eUniversal 3\/4\"-16 thread fits a wide range of outboard and sterndrive applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Mercury outboard engines with 3\/4\"-16 propeller shaft\u003c\/li\u003e\n\u003cli\u003efor MerCruiser Alpha One and Bravo One sterndrives\u003c\/li\u003e\n\u003cli\u003efor OMC Cobra sterndrives with 3\/4\"-16 thread\u003c\/li\u003e\n\u003cli\u003efor OMC Stringer series drives\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSecuring a stainless steel propeller while the boat is on a trailer or moored overnight\u003c\/li\u003e\n\u003cli\u003ePreventing theft at a busy public boat ramp after a day of fishing\u003c\/li\u003e\n\u003cli\u003eAdding an extra layer of security on a wakeboard or ski boat during a weekend on the lake\u003c\/li\u003e\n\u003cli\u003eProtecting a high-lift propeller on a commercial water taxi or work skiff\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number(s)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e74039\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThread Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3\/4\"-16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFits Brands\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMercury, MerCruiser, OMC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIncludes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLock body, key(s), installation hardware\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch4\u003eGood To Know\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e How do I check if my propeller shaft has 3\/4\"-16 thread? \u003cstrong\u003eA:\u003c\/strong\u003e Measure the shaft diameter with a caliper and count 16 threads per inch using a thread gauge; most mid-range Mercury and MerCruiser drives use this standard.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Will this lock set work with a stainless steel or aluminum propeller? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, the lock set functions with any propeller that uses a standard 3\/4\"-16 shaft thread and a hub kit that accommodates the lock's depth.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eSlight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.\u003c\/em\u003e\u003c\/p\u003e","brand":"Solid Spare","offers":[{"title":"Default Title","offer_id":44965038587990,"sku":"ZZ3A00749","price":94.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/57_3a82bdeb-bd6e-4104-aa02-cff39f17db56.jpg?v=1781652710","url":"https:\/\/www.solidspare.com\/products\/74039-marine-propeller-lock-set-for-mercury-mercruiser-omc-3-4-16-thread-size","provider":"Solid Spare","version":"1.0","type":"link"}