Get free shipping on your order, with any water filter subscription. Find my filter

Open Hamburger Menu
Sears Parts Direct
Tips to find your model number
Thermal Zone GM120K20C gas furnace

Thermal Zone GM120K20C gas furnace Parts

Here are the diagrams and repair parts for Thermal Zone GM120K20C gas furnace, as well as links to manuals and error code tables, if available.

By Schematic
SELECT DIAGRAM
?

This is the number corresponding to the part on the diagram / schematic

Browse Parts for GM120K20C Gas Furnace

  • Kenmore Furnace Electronic Control Board for Thermal Zone GM120K20C - Part 903106

    80+ upflow furnace diagram

    Kenmore Furnace Electronic Control Board

    Part #903106

    The manufacturer no longer makes this part, and there's no substitute part

  • Furnace Blower Wheel for Thermal Zone GM120K20C - Part 667277

    80+ upflow furnace diagram

    Furnace Blower Wheel

    Part #667277

    The manufacturer no longer makes this part, and there's no substitute part

  • Furnace Control Module Assembly for Thermal Zone GM120K20C - Part 903108

    80+ upflow furnace diagram

    Furnace Control Module Assembly

    Part #903108

    The manufacturer no longer makes this part, and there's no substitute part

  • Furnace Blower Fan Motor Assembly for Thermal Zone GM120K20C - Part 902816

    80+ upflow furnace diagram

    Furnace Blower Fan Motor Assembly

    Part #902816

    The manufacturer no longer makes this part, and there's no substitute part

  • Gas Valve for Thermal Zone GM120K20C - Part 624586

    80+ upflow furnace diagram

    Gas Valve

    Part #624586

    The manufacturer no longer makes this part, and there's no substitute part

  • Motor Run Capacitor for Thermal Zone GM120K20C - Part 12908

    80+ upflow furnace diagram

    Capacitor

    Part #621435

    Replaced by #12908

    Info Icon
    Manufacturer substitution
    This part replaces 621435. Substitute parts can look different from the original.
    In Stock
    $98.90
    11% OFF Phone Price : $110.90Info Icon
    Minus Item
    Qty
    Plus Item
  • Transformer for Thermal Zone GM120K20C - Part 621486

    80+ upflow furnace diagram

    Transformer

    Part #621486

    The manufacturer no longer makes this part, and there's no substitute part

  • Sensor Rod for Thermal Zone GM120K20C - Part 632316

    80+ upflow furnace diagram

    Sensor Rod

    Part #632316

    The manufacturer no longer makes this part, and there's no substitute part

  • Switch for Thermal Zone GM120K20C - Part 632212

    80+ upflow furnace diagram

    Switch

    Part #632212

    The manufacturer no longer makes this part, and there's no substitute part

  • Furnace Burner Flame Roll-out Switch for Thermal Zone GM120K20C - Part 626343

    80+ upflow furnace diagram

    Furnace Burner Flame Roll-out Switch

    Part #626343

    The manufacturer no longer makes this part, and there's no substitute part

Repair guides for bottom-mount refrigerators

How to replace an electronic control board on the back of a refrigerator

How to replace an electronic control board on the back of a refrigerator

If your refrigerator isn't running, an electronic control board failure could be the problem. A service technician can d…

Repair time and Difficulty

 15 minutes or less
How to replace a door gasket in a French-door refrigerator

How to replace a door gasket in a French-door refrigerator

The door gasket, often called a door seal, seals the gap around the door to keep the cold air in and the warm air out. R…

Repair time and Difficulty

 15 minutes or less
How to replace an in-door ice maker on a French door refrigerator

How to replace an in-door ice maker on a French door refrigerator

Follow these step-by-step instructions how to replace the in-door ice maker in Kenmore TRIO and LG French door refrigera…

Repair time and Difficulty

 15 minutes or less

Effective articles & videos to help repair your furnaces

How to get your furnace ready for winter

How to get your furnace ready for winter

Get expert tips for preparing your furnace for winter. Follow maintenance tips to keep your furnace in top shape.…

2023 HVAC regulation changes and how they may affect you

2023 HVAC regulation changes and how they may affect you

Find out how new DOE standards going into effect in 2023 can affect you and what you need to do.…

Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

Parts & More

Parts