Easy to replace a noisy fan: out covering, unscrew, unplug, pull old one out, set new one in, plug in, reassemble outer case and turn it on. No particular skills or tools required, direct plug and play upgrade new for S0504B000 fan motor assembly . and long-lasting:The new exhaust fan for S0504B000 runs smoothly and quietly, firmly fixed on the motor shaft is not easy to slide, it can effectively reduce noise when working and prolong the life of the 769RF/769RL B unit for . Upgraded from 50CFM to 70 CFM doing better of allowing enough air in the bathroom/shower without worrying about moisture or fogging, effectively preventing and damage. Cost-effective:Replacing bathroom fan motor for S0504B000 in an old fan eliminates the need to disassemble the entire unit system or cut/patch the ceiling to fit the new case, more economical than replacing the entire motor system. Replaces for part number: S0504B000 The bathroom fan motor assembly kit for S97017705 includes a bracket, motor and blade. 769RL B Unit Fan Motor for Spec: 120-Volt, 1.05A, 45W, 60HZ. 3.0 Sones Wheel Measures: 4-3/4 inches X 1-1/14 inches 70 CFM Air Capacity 70 Cubic Feet Per Minute This 769RL B unit replacement motor for S0504B000 compatible with for 769RL B Unit Only, 757, 769RFT-R01, 769RL-R01, Color: Silver Material: Metal Package Contents: 1 x Bathroom Exhaust Fan Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.