Brand new replacement flywheel rotor for your Arctic Cat 400 TRV (years: 2006-2007). The factory Flywheel has been plagued with problems, which is why we offer a redisigned flywheel. The new unit has also been redisigned with the magnets are sealed to prevent them from detaching for reliability and high performance. The new seal protects the magnet's epoxy from oil additives. This redisign saves you about $500 of repairs. This unit is direct replacement unit for easy installation.