Crankshaft Woodruff Keys 2pk .188 x 1.375 Long

The Crankshaft Woodruff Keys 2pk .188 x 1.375 Long by Pioneer are precision-engineered fastening components designed to lock a crankshaft pulley or gear to the crankshaft itself, preventing rotational slip under engine load. These small but critical parts are essential for any engine rebuild, high-performance modification, or routine maintenance where crankshaft timing integrity is crucial. Whether you're a seasoned mechanic or an automotive enthusiast, having quality woodruff keys on hand ensures your crankshaft assembly stays perfectly indexed.

Woodruff keys function by sitting in a semicircular keyway milled into both the crankshaft and the component being secured—typically a harmonic balancer, timing gear, or pulley. The .188-inch width and 1.375-inch length of these keys make them suitable for various applications, but it's essential to verify compatibility with your specific engine setup. These keys are made from hardened steel, providing durability and resistance to deformation under engine loads.

Mechanics and engine builders rely on these woodruff keys when replacing stock crankshaft components or reassembling an engine after machine work. The two-pack quantity ensures you have a spare in case of loss during disassembly or if you're servicing multiple engines. Correct key sizing is vital—an undersized or oversized key can lead to engine performance issues.