No spacers required, they are built into the spline area, spline is 7/16 thick prevents cracking. The Stator is wound with high temperature copper wire.NOTE: This stator dose not use the problematic green powder coated insulation between the windings and lamination's. This Accumax stator uses a special molded glass filled nylon holds up to the heat much better than the other powder coated stators you see for sale. EXCEEDS OE SPECS, ISO CERTIFIED FACTORY. LOOK AT MY OTHER AUCTIONS. The item "HARLEY EVO (STATOR) & (ROTOR) 32AMP KIT HEAVY DUTY" is in sale since Monday, April 27, 2015. This item is in the category "eBay Motors\Parts & Accessories\Motorcycle Parts\Electrical & Ignition\Other Electrical & Ignition". The seller is "jasonmotoelectrix" and is located in Joplin, Missouri. This item can be shipped worldwide.