This heat treated tool is designed to pull the flywheel found on the Polaris ProStar® Engines. Polaris ProStar® Engines are: RZR 900/1000, Ranger XP 900, Crew 900, Sportsman ACE 325/900, Sportsman ETX/850/1000, Scrambler 850/1000. Will not fit 570 models (flywheel is too long). I found Discount Prices on K&L 6-IN-1 CROSS TYPE FLYWHEEL PULLER. We respect your privacy and won't share your information with any other company. The gear (Pulley) puller is designed to remove motor, blower pulleys, and flywheel, etc., that have become frozen to the shaft. Instead of trying to loosen a stuck pulley by hammering on it, the pulley puller creates uniform and leveraged pressure. This helps prevent damage to a motor's bearings or creating misalignment to the shaft. Extractors and other tools Bosch later type small 100mm Ø magneto flywheel puller —£15 each. fits NVT, Morini Franco engines, Garelli (horizontal motor models), Flandria, KTM Hobby, etc. Also early Bosch 1950s’ steel 115mm Ø magneto flywheel type as fitted to NSU Quickly, etc.