Mercury Pen 47959

Mercury – Quicksilver Cotter Pin | Propeller Hardware | Stainless Steel | 47959 Overview It’s a tiny piece, but without it, your prop wouldn’t stay put. The Mercury Marine 47959 Quicksilver Cotter Pin 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 marine-grade stainless steel , this cotter pin stands up to torque, vibration, and saltwater exposure — and it’s built to Mercury’s own specs for strength and reliability. Key Features Purpose : Holds the prop nut securely to prevent it from loosening. Material: Made from tough stainless steel that resists rust and bending. Design: Built to Mercury’s factory size and hardness for proper fit and holding strength. Performance: Tested to handle high prop torque and constant vibration. Durability: Won’t corrode or weaken after long saltwater use. Fit: Works with Mercury, Mariner, and MerCruiser propeller assemblies . Engine & Boat Compatibility Mercury outboards with standard propeller shaft and nut assemblies Mariner outboards with compatible prop retention systems MerCruiser sterndrives using cotter pin-style prop retention Performance & Real-World Benefits The 47959 cotter pin 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. Whenever 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. Why Choose Mercury OEM The Quicksilver 47959 is a genuine Mercury Marine part , 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. Mercury’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. FAQ Q1: What’s this cotter pin used for? It locks the prop nut in place, preventing it from loosening under power or reverse. Q2: What’s it made of? It’s made of hardened, marine-grade stainless steel that won’t rust or weaken over time. Q3: How often should I replace it? Replace it every time you remove your prop or if the pin looks bent, corroded, or worn. Q4: Can I use any cotter pin? Not recommended — generic pins aren’t built for the torque and corrosion marine applications demand. Q5: Why OEM instead of generic? Mercury OEM pins are tested and rated for the load your engine produces — they fit right and last longer.

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