That little half-moon piece of steel might not look like much, but when your crankshaft pulley or flywheel starts slipping, you’ll know just how important a good woodruff key is. When the key shears or wears out, your timing goes off, your alternator quits charging, or worse yet, your flywheel comes loose. This precision-cut woodruff key keeps everything locked in place so your tractor keeps running strong.
What You’re Getting
- Perfect 1/4 inch x 1-1/8 inch dimensions for precise fit in keyways
- Heat-treated steel construction that won’t shear under normal loads
- Machined to exact tolerances for proper shaft-to-component alignment
- Direct replacement for worn or damaged original keys
Built for Real Farm Work
This woodruff key fits a wide variety of tractor engines and drive systems where you need to lock pulleys, gears, or flywheels to shafts. You’ll find this size commonly used on crankshaft pulleys for alternators and water pumps, PTO drive assemblies, and various engine timing components across many tractor brands and models.
Made to Last
Farm equipment puts serious stress on drive components, and a failed woodruff key can leave you stranded in the field. This key is made from quality steel that’s heat-treated to handle the torque and vibration that comes with real farm work, season after season.
Good to Know
Installation is straightforward—just slide the key into the shaft’s keyway before installing the pulley or gear. Keep a spare or two in your toolbox since they’re small and easy to lose during repairs. If you’re replacing one that’s sheared, check for any damage to the keyway itself before installing the new key.
