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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 forGUN125-4B Gas Furnace

  • Manifold, 5 for GMC GUN125-4B - Part B18264-19

    Gas train diagram

    Manifold, 5

    Part #B18264-19

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

  • Flue Restrictor (gun100-4b, Gus100-4) for GMC GUN125-4B - Part 18248-11S

    Heat exchanger assembly diagram

    Flue Restrictor (gun100-4b, Gus100-4)

    Part #18248-11S

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

  • Limit, 160f, for GMC GUN125-4B - Part B13700-08

    Heat exchanger assembly diagram

    Limit, 160f,

    Part #B13700-08

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

  • Secondary Ai for GMC GUN125-4B - Part 18224-11

    Heat exchanger assembly diagram

    Secondary Ai

    Part #18224-11

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

  • Furnace Blower Door for GMC GUN125-4B - Part 18223-41

    Casing diagram

    Furnace Blower Door

    Part #18223-41

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

  • Top Channel (gun100-4b, Gus100-4) for GMC GUN125-4B - Part 18221-05S

    Casing diagram

    Top Channel (gun100-4b, Gus100-4)

    Part #18221-05S

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

  • Blower Wheel for GMC GUN125-4B - Part B13680-46

    Blower assembly diagram

    Blower Wheel

    Part #B13680-46

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

  • Secondary Ai for GMC GUN125-4B - Part 18224-09

    Heat exchanger assembly diagram

    Secondary Ai

    Part #18224-09

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

  • Secondary Ai for GMC GUN125-4B - Part 18820-06

    Heat exchanger assembly diagram

    Secondary Ai

    Part #18820-06

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

  • Manifold, 4 for GMC GUN125-4B - Part B18264-18

    Gas train diagram

    Manifold, 4

    Part #B18264-18

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

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