UPDATE NOVEMBER 2017 - BRAND CHANGED TO ROTOM. US Pellet Stove Exhaust Combustion Motor w/ Gasket 80473 . Estimated Lifespan: 15-20 years. Fasco uses the highest standards of engineering with parts calibrated within 1/10,000th of an inch. The room for error is so small is has to be checked using a microscope. Your new motor is designed for Variable Speed which requires high quality electronic components not included in other motors. High temperature rubber bushings and washers are used to Damper Vibration. A FREE high temperature micro fiber low vibration gasket is included with you motor to insure you have the highest quality item available anywhere. Go Green. In accord with new environmental standards your new motor is more efficient so it cost less to run. Wiring - Your new motor may have a electrical plug that is different from you old motor. Cut the new plug off and splice the wires to the old wiring using your choice of electrical connector. It doesn't matter which wire goes to which as long as they are connected.