Excellent brand new replacement flywheel for the Arctic Cat 500. This flywheel is a direct replacement for easy installation. The original factory units are plagued with problems such as magnents becoming detached and scatter through the engine. The new flywheel has been manufactured with a redesinged where the magnets are sealed in the flywheel with a reinforces epoxy to prevent detaching. This unit is a quality replacement that corrects the issues from the original unit for half the price of an OEM part.