Need to fit a pulley or other part onto a different sized engine shaft? This step key shaft adapter is the perfect fix! It's a simple but clever sleeve that converts a 3/4 inch crankshaft (like on many Predator and similar small gas engines) up to a 1 inch diameter. That means you can use pulleys, clutches, or other accessories designed for a 1-inch shaft on your smaller engine. The sleeve itself is about 3 inches long and has a keyway slot (1/4\-3/16\) to secure it with the included step key, which is about 2 inches long. It's made by Dyno Racing, brand new in its packaging, and built to be durable. Super handy for go-kart builds, log splitters, generators, or any small engine project where you need to adapt shaft sizes. An essential little part for the home machinist or hobbyist!
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