Goodman
Furnace

Model #GMPH120-5 Official Goodman gas furnace

Here are the diagrams and repair parts for Goodman GMPH120-5 gas furnace, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

For DIY troubleshooting advice and repair guides, visit our repair help section.

Showing 10 of 40 parts

Furnace Heat Exchanger

#8

All parts Diagram

Furnace heat exchanger

Part #25213-04S
In Stock
$697.84 | 
$10.00 OFF 
Phone Price: $707.84
Gas Manifold

#24

All parts Diagram

Gas manifold

Part #B25260-04
In Stock
$46.73
Furnace Blower Fan Motor Mounting Bracket

#38

All parts Diagram

In Stock
$10.54
Furnace Blower Fan Wheel

#36

All parts Diagram

Blower wheel

Part #B13680-34
Replaced by #B1368034
?
Manufacturer substitution
This part replaces B13680-34. Substitute parts can look different from the original.
In Stock
$66.09 | 
7% OFF 
Phone Price: $71.09
Furnace Burner Roll-Out Limit Switch (replaces B13701-45, B1370154)

#21

All parts Diagram

In Stock
$18.99 | 
10% OFF 
Phone Price: $20.99
J-box Cover

#43

All parts Diagram

J-box cover

Part #25155-01
This item is not returnable
In Stock
$2.16
Motor Mounting Bracket

#39

All parts Diagram

Motor mounting bracket

Part #B13768-51
This item is not returnable
In Stock
$2.49
Blwr Accs Dr

#4

All parts Diagram

Blwr accs dr

Part #25150-07S
In Stock
$17.99
Furnace Wire Harness

#51

All parts Diagram

Furnace wire harness

Part #25784-00S
In Stock
$158.52
Furnace Burner Orifice

#23

All parts Diagram

Furnace burner orifice

Part #B25893-45
This item is not returnable
In Stock
$3.99

Articles and videos common to all furnaces

November 30, 2022

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.

August 5, 2022

Introducing new technical repair content that we’re developing for the Sears Technical Institute

Introducing new technical repair content that we’re developing for the Sears Technical Institute

Learn about Sears Technical Institute and the advanced technical content being developed for aspiring appliance techs.

June 29, 2022

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.