Review on Powerful Replacement Blower Wheel: Nutone 9417D, 605N Part # 85600000 by Michael Powell

This appears to be an 'official' product but is VERY cheap/poorly made with lots of leftover skins and odd little round bulges molded into the flat base between many of the impeller blades. The flashing and bumping likely makes it louder in use, which isn't a good thing. NOTE: You will need to purchase an extra round lock washer to fit the motor's metal shaft to hold this wheel in place (so it doesn't slide down the shaft and fall off!).