This solenoid operates the door damper on Classic model furnaces/boilers.
Because damper control solenoids are not interchangeable, check measurement and application dates carefully. Solenoid (p/n 167) is for pre-June 2000 Classic models. Solenoid is for Classic models built June 2000 and after. These solenoids are physically the same except the mounting feet on p/n 4184 are 1/4" closer together than p/n 167. BE SURE TO MEASURE, THIS IS A NON-RETURNABLE ITEM.
- p/n 167 1-5/8" center to center bracket holes
- p/n 4184 1-3/8" center to center bracket holes