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GMC GUN125-4B gas furnace Parts

Here are the diagrams and repair parts for GMC GUN125-4B gas furnace, as well as links to manuals and error code tables, if available.

GMC GUN125-4B gas furnace
By Schematic
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This is the number corresponding to the part on the diagram / schematic

Browse Parts for GUN125-4B Gas Furnace

  • Burner Box T for GMC GUN125-4B - Part 18823-00

    Heat exchanger assembly diagram

    Burner Box T

    Part #18823-00

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

  • Furnace Burner Flame Sensor for GMC GUN125-4B - Part B11726-05

    Gas train diagram

    Furnace Burner Flame Sensor

    Part #B11726-05

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

  • Casing Assembly for GMC GUN125-4B - Part 18161-30S

    Casing diagram

    Casing Assembly

    Part #18161-30S

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

  • Casing Assembly for GMC GUN125-4B - Part 18161-40S

    Casing diagram

    Casing Assembly

    Part #18161-40S

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

  • Top Channel (gun050-2b, Gun075-3b, Gus050-2, Gus075-3) for GMC GUN125-4B - Part 18221-04S

    Casing diagram

    Top Channel (gun050-2b, Gun075-3b, Gus050-2, Gus075-3)

    Part #18221-04S

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

  • Manifold, 4 for GMC GUN125-4B - Part B18264-14

    Gas train diagram

    Manifold, 4

    Part #B18264-14

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

  • Burner Box T for GMC GUN125-4B - Part 18823-02

    Heat exchanger assembly diagram

    Burner Box T

    Part #18823-02

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

  • Secondary Ai for GMC GUN125-4B - Part 18820-09

    Heat exchanger assembly diagram

    Secondary Ai

    Part #18820-09

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

  • Motor for GMC GUN125-4B - Part B13400-14

    Blower assembly diagram

    Motor

    Part #B13400-14

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

  • Compression for GMC GUN125-4B - Part B18100-02

    Heat exchanger assembly diagram

    Compression

    Part #B18100-02

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

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