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

Open Hamburger Menu
Sears Parts Direct
Please enter one or more characters
Scan Icon
Tips to find your model number
Water filters
Water filter finder tool
DIY help
Featured products
Top brands
View all parts by brand
Top products and services
Products by brand
Orders
Customer Service
Schedule a repair
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

  • Complete Burner Assembly for Thermal Zone GM120K20C - Part D03830

    80+ upflow furnace diagram

    Complete Burner Assembly

    Part #D03830

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

  • Turbular (not Shown) for Thermal Zone GM120K20C - Part 478750

    80+ upflow furnace diagram

    Turbular (not Shown)

    Part #478750

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

  • Furnace Blower for Thermal Zone GM120K20C - Part 903111

    80+ upflow furnace diagram

    Furnace Blower

    Part #903111

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

  • Motor Mount Arm (not Shown) for Thermal Zone GM120K20C - Part 668927

    80+ upflow furnace diagram

    Motor Mount Arm (not Shown)

    Part #668927

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

  • Heat Exchanger for Thermal Zone GM120K20C - Part 493217

    80+ upflow furnace diagram

    Heat Exchanger

    Part #493217

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

  • Switch for Thermal Zone GM120K20C - Part 632205

    80+ upflow furnace diagram

    Switch

    Part #632205

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

  • Main Burner Ofrifice (43 Drill) (not Shown) for Thermal Zone GM120K20C - Part 661043

    80+ upflow furnace diagram

    Main Burner Ofrifice (43 Drill) (not Shown)

    Part #661043

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

  • Access Doors, Set for Thermal Zone GM120K20C - Part 903114Z

    80+ upflow furnace diagram

    Access Doors, Set

    Part #903114Z

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

  • Vent Control Assembly for Thermal Zone GM120K20C - Part 372586

    80+ upflow furnace diagram

    Vent Control Assembly

    Part #372586

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

  • Collector Pan Assembly for Thermal Zone GM120K20C - Part 468693

    80+ upflow furnace diagram

    Collector Pan Assembly

    Part #468693

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

Effective articles & videos to help repair your furnaces

View all
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.…

Read more
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.…

Read more
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.…

Read more

Parts & More

Parts
Home Electronics Capacitor 22-7558-11Side Board " VAP1004Home Electronics Push Switch 155388611Home Electronics Coil Spring 141-2-855T-48600Home Electronics Bracket YEFX0212097APiston Pin 150-23302-03Insulate She VMZ0565WHEEL & TIRE 21548476Int'l Deck ( 95-7483Screw 372780701Diverter 834341Home Electronics Connector 162308Gear Shaft 779-1068Ws Plug YP04000610Control 57940890336"rh Euro D W10738065Pcb,tu-22 160557500Home Electronics Control 2203162242Rt End Rail 1450680030Retainer Bracket WC36X5006