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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

  • Flue Rstrctr for GMC GUN125-4B - Part 18248-12S

    Heat exchanger assembly diagram

    Flue Rstrctr

    Part #18248-12S

    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

  • Rubber Sleev for GMC GUN125-4B - Part B18104-01

    Misc. electrical/hardware diagram

    Rubber Sleev

    Part #B18104-01

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

  • Comb Box Frt for GMC GUN125-4B - Part 18820-15

    Heat exchanger assembly diagram

    Comb Box Frt

    Part #18820-15

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

  • Secondary Air Door (gus075-3) for GMC GUN125-4B - Part 18820-07

    Heat exchanger assembly diagram

    Secondary Air Door (gus075-3)

    Part #18820-07

    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

  • Rubber Coupl for GMC GUN125-4B - Part B18104-00

    Misc. electrical/hardware diagram

    Rubber Coupl

    Part #B18104-00

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

  • Hose Clamp # for GMC GUN125-4B - Part B18100-00

    Heat exchanger assembly diagram

    Hose Clamp #

    Part #B18100-00

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

  • Burner Assembly for GMC GUN125-4B - Part B18225-10

    Gas train diagram

    Burner Assembly

    Part #B18225-10

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

  • Heat Exchange for GMC GUN125-4B - Part 18212-29S

    Heat exchanger assembly diagram

    Heat Exchange

    Part #18212-29S

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

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