Engine Pulley Crankshaft Sleeve Adapter Three Quarter To One Inch Shaft 304 Stainless Steel Step Key Pulley Adapter For Automotive Projects Durable Rustproof Upgrade

3/4 to 1 in Shaft Engine Pulley Adapter, 304 SS (Single)
✔️ Single pack, 304 SS, fits 3/4 to 1 in shaft, key 3/16 to 1/4 in

This shaft sleeve adapter is made from 304 stainless steel and fits crankshafts from 19.05 mm to 25.4 mm (3/4 in to 1 in). It lets you connect to a range of pulleys and gearboxes, enabling speed and torque adjustments while preserving existing components. Color: Silver.

✅ 304 stainless steel construction offers rustproof durability
✅ Fits crankshaft diameters 19.05-25.4 mm (3/4-1 in) with step key 4.76-6.35 mm
✅ Adapts larger hub bores to smaller shafts, simplifying retrofits
✅ Easy installation with standard fasteners and clean alignment

💡 What is a shaft adapter pulley used for in automotive projects? A handy device that lets you connect pulleys to shafts of different sizes without replacing major components.

- Preserves current gear ratios and belt layouts - Works with shaft diameters 19.05-25.4 mm (3/4-1 in) and step key 4.76-6.35 mm - Reduces downtime and inventory during upgrades - Made from 304 stainless steel for rust resistance and longevity