Solenoid (Models prior to 2000, side draft units)

Door Damper Solenoid – Classic Models (p/n 167)

This solenoid operates the door damper on Classic model furnaces/boilers.

⚠️ Important: Damper control solenoids are not interchangeable. Please measure carefully before ordering. This is a non-returnable item.

Compatibility & Specifications:

• p/n 167 → 1-5/8" center-to-center bracket holes

  • For Classic models built before June 2000

• p/n 443 (also listed as 4184) → 1-3/8" center-to-center bracket holes

  • For Classic models built after June 2000, including all E-Classic models

Note: The solenoids look physically the same, but the mounting feet are different. Part #443/4184 has bracket holes spaced 1/4" closer together than Part #167.