These Can-Am system kits are machined for each application which generally takes 3-4 business days to process. The system kit will include a replacement factory Can-Am Stator, Can -Am Rotor( flywheel) and Can-Am Ignition Coil. All parts in the kit need to be installed at the same time. All parts look different than stock but are bolt-on. The new flywheel Rotor does use a keyway. Be sure to leave your specific year make and model in the order notes.