{"product_id":"mercury-pin-cotter-2-18-47959","title":"Mercury – Quicksilver Cotter Pin | Propeller Hardware | Stainless Steel | 47959","description":"\u003cp data-start=\"0\" data-end=\"85\"\u003e\u003cstrong data-start=\"0\" data-end=\"83\"\u003eMercury – Quicksilver Cotter Pin | Propeller Hardware | Stainless Steel | 47959\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"87\" data-end=\"90\"\u003e\n\u003ch3 data-start=\"92\" data-end=\"110\"\u003e\u003cstrong data-start=\"96\" data-end=\"108\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"111\" data-end=\"619\"\u003eIt’s a tiny piece, but without it, your prop wouldn’t stay put. The \u003cstrong data-start=\"179\" data-end=\"226\"\u003eMercury Marine 47959 Quicksilver Cotter Pin\u003c\/strong\u003e is one of those small, often overlooked parts that plays a huge role in keeping your setup safe and solid. It locks your prop nut in place so your propeller doesn’t loosen or back off while you’re running. Made from \u003cstrong data-start=\"443\" data-end=\"475\"\u003emarine-grade stainless steel\u003c\/strong\u003e, this cotter pin stands up to torque, vibration, and saltwater exposure — and it’s built to Mercury’s own specs for strength and reliability.\u003c\/p\u003e\n\u003chr data-start=\"621\" data-end=\"624\"\u003e\n\u003ch3 data-start=\"626\" data-end=\"648\"\u003e\u003cstrong data-start=\"630\" data-end=\"646\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"651\" data-end=\"719\"\u003e\n\u003cstrong data-start=\"651\" data-end=\"659\"\u003ePurpose\u003c\/strong\u003e\u003cstrong data-start=\"651\" data-end=\"659\"\u003e:\u003c\/strong\u003e Holds the prop nut securely to prevent it from loosening.\u003c\/li\u003e\n\u003cli data-start=\"722\" data-end=\"804\"\u003e\n\u003cstrong data-start=\"722\" data-end=\"735\"\u003eMaterial:\u003c\/strong\u003e Made from \u003cstrong data-start=\"746\" data-end=\"771\"\u003etough stainless steel\u003c\/strong\u003e that resists rust and bending.\u003c\/li\u003e\n\u003cli data-start=\"807\" data-end=\"906\"\u003e\n\u003cstrong data-start=\"807\" data-end=\"818\"\u003eDesign:\u003c\/strong\u003e Built to \u003cstrong data-start=\"828\" data-end=\"867\"\u003eMercury’s factory size and hardness\u003c\/strong\u003e for proper fit and holding strength.\u003c\/li\u003e\n\u003cli data-start=\"909\" data-end=\"985\"\u003e\n\u003cstrong data-start=\"909\" data-end=\"925\"\u003ePerformance:\u003c\/strong\u003e Tested to handle high prop torque and constant vibration.\u003c\/li\u003e\n\u003cli data-start=\"988\" data-end=\"1055\"\u003e\n\u003cstrong data-start=\"988\" data-end=\"1003\"\u003eDurability:\u003c\/strong\u003e Won’t corrode or weaken after long saltwater use.\u003c\/li\u003e\n\u003cli data-start=\"1058\" data-end=\"1138\"\u003e\n\u003cstrong data-start=\"1058\" data-end=\"1066\"\u003eFit:\u003c\/strong\u003e Works with \u003cstrong data-start=\"1078\" data-end=\"1135\"\u003eMercury, Mariner, and MerCruiser propeller assemblies\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1140\" data-end=\"1143\"\u003e\n\u003ch3 data-start=\"1145\" data-end=\"1182\"\u003e\u003cstrong data-start=\"1149\" data-end=\"1180\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1185\" data-end=\"1253\"\u003eMercury outboards with standard propeller shaft and nut assemblies\u003c\/li\u003e\n\u003cli data-start=\"1256\" data-end=\"1314\"\u003eMariner outboards with compatible prop retention systems\u003c\/li\u003e\n\u003cli data-start=\"1317\" data-end=\"1379\"\u003eMerCruiser sterndrives using cotter pin-style prop retention\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1381\" data-end=\"1384\"\u003e\n\u003ch3 data-start=\"1386\" data-end=\"1429\"\u003e\u003cstrong data-start=\"1390\" data-end=\"1427\"\u003ePerformance \u0026amp; Real-World Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1430\" data-end=\"1713\"\u003eThe \u003cstrong data-start=\"1434\" data-end=\"1454\"\u003e47959 cotter pin\u003c\/strong\u003e is small but essential. It’s the final lock that keeps your prop secure, even after hours of running at speed or idling in choppy water. Its stainless-steel build means it won’t rust or snap like a cheaper pin might, even after repeated saltwater exposure.\u003c\/p\u003e\n\u003cp data-start=\"1715\" data-end=\"1961\"\u003eWhenever you pull your prop for maintenance, replacing this pin ensures your prop stays exactly where it’s supposed to be. It’s quick, inexpensive insurance against losing your prop or damaging the shaft — something every boater can appreciate.\u003c\/p\u003e\n\u003chr data-start=\"1963\" data-end=\"1966\"\u003e\n\u003ch3 data-start=\"1968\" data-end=\"2000\"\u003e\u003cstrong data-start=\"1972\" data-end=\"1998\"\u003eWhy Choose Mercury OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2001\" data-end=\"2250\"\u003eThe \u003cstrong data-start=\"2005\" data-end=\"2026\"\u003eQuicksilver 47959\u003c\/strong\u003e is a \u003cstrong data-start=\"2032\" data-end=\"2063\"\u003egenuine Mercury Marine part\u003c\/strong\u003e, built to the same standards as your engine and drive. Hardware-store pins might look close, but they’re often softer steel or not corrosion-rated, which can lead to premature failure.\u003c\/p\u003e\n\u003cp data-start=\"2252\" data-end=\"2441\"\u003eMercury’s OEM pins are cut to exact dimensions, hardened for strength, and tested under real marine loads. It’s a small part that gives you big confidence every time you hit the throttle.\u003c\/p\u003e\n\u003chr data-start=\"2443\" data-end=\"2446\"\u003e\n\u003ch3 data-start=\"2448\" data-end=\"2461\"\u003e\u003cstrong data-start=\"2452\" data-end=\"2459\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2463\" data-end=\"2592\"\u003e\u003cstrong data-start=\"2463\" data-end=\"2503\"\u003eQ1: What’s this cotter pin used for?\u003c\/strong\u003e\u003cbr data-start=\"2503\" data-end=\"2506\"\u003eIt locks the prop nut in place, preventing it from loosening under power or reverse.\u003c\/p\u003e\n\u003cp data-start=\"2594\" data-end=\"2717\"\u003e\u003cstrong data-start=\"2594\" data-end=\"2620\"\u003eQ2: What’s it made of?\u003c\/strong\u003e\u003cbr data-start=\"2620\" data-end=\"2623\"\u003eIt’s made of \u003cstrong data-start=\"2636\" data-end=\"2678\"\u003ehardened, marine-grade stainless steel\u003c\/strong\u003e that won’t rust or weaken over time.\u003c\/p\u003e\n\u003cp data-start=\"2719\" data-end=\"2849\"\u003e\u003cstrong data-start=\"2719\" data-end=\"2757\"\u003eQ3: How often should I replace it?\u003c\/strong\u003e\u003cbr data-start=\"2757\" data-end=\"2760\"\u003eReplace it every time you remove your prop or if the pin looks bent, corroded, or worn.\u003c\/p\u003e\n\u003cp data-start=\"2851\" data-end=\"2989\"\u003e\u003cstrong data-start=\"2851\" data-end=\"2884\"\u003eQ4: Can I use any cotter pin?\u003c\/strong\u003e\u003cbr data-start=\"2884\" data-end=\"2887\"\u003eNot recommended — generic pins aren’t built for the torque and corrosion marine applications demand.\u003c\/p\u003e\n\u003cp data-start=\"2991\" data-end=\"3136\"\u003e\u003cstrong data-start=\"2991\" data-end=\"3026\"\u003eQ5: Why OEM instead of generic?\u003c\/strong\u003e\u003cbr data-start=\"3026\" data-end=\"3029\"\u003eMercury OEM pins are tested and rated for the load your engine produces — they fit right and last longer.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46941170499875,"sku":"18-47959","price":2.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/47959_Main.jpg?v=1760631151","url":"https:\/\/partsvu.com\/en-ca\/products\/mercury-pin-cotter-2-18-47959","provider":"PartsVu","version":"1.0","type":"link"}