Keyed Pulley and Sprocket Set - 2.0L/2.3L EcoBoost

The standard Ford EcoBoost 2.0L and 2.3L crankshaft relies on bolt torque to secure the crankshaft pulley and chain sprocket. While that may be fine for standard engines, high-power engines operating at high RPM can suffer from slipping sprockets resulting in catastrophic engine failure. Additionally, a keyed crankshaft and sprocket allow for easy and more precise engine assembly. Made from genuine Ford pulley and sprocket, precision machined for an included 3mm steel key. Use with our lightweight crankshaft 6069-FC-AA or your own crankshaft that has been machined for the key. Applications: 2016-2018 Focus RS 2013-2018 Focus ST 2.0L Ford EcoBoost  2.3L Ford EcoBoost , EcoBoost Mustang, Bronco and many other Ford 2.3L EcoBoost engines.