OMC Evinrude Johnson Propeller Nut

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The Part number 314503 for OMC Evinrude and Johnson outboards is a propeller nut. It's a castle nut or a pin-type nut used to secure the propeller to the crankshaft. Specifically, it's a set of two, often sold together as a pair. These nuts are typically found on motors with 13 splines, such as those with 14, 25, and 28 horsepower. Key features and notes: Function: Secures the propeller to the crankshaft. Type: Castle nut or pin-type nut Compatibility: Typically used on Evinrude and Johnson outboards, especially those with 13 splines. Important: When changing a propeller, it's important to inspect the nut, the splines on the crankshaft, and the bushing for wear and damage. Make sure there's adequate lubrication on the splines before reinstalling the propeller. Show more