GMC
Wall Heater

Model # GUPS120-5 Official GMC gas furnace

Here are the diagrams and repair parts for Official GMC GUPS120-5 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.

Model diagram and schematic

SEARCH WITHIN THIS MODEL

?

This is the number corresponding to the part on the diagram / schematic

Search
ALL PARTS
Showing 10 of 79 parts  |

Transformer B11416-00
#1

Misc. electrical and hardware diagram

Transformer

Part #B11416-00

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

Motor B13400-09
#2A

Blower assembly diagram

Motor

Part #B13400-09

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

Capacitor 10 B9456-52
#1A

Blower assembly diagram

Capacitor 10

Part #B9456-52

Replaced by #12908

?
Manufacturer substitution
This part replaces B9456-52. Substitute parts can look different from the original.
This item is not returnable
$5.26
16% OFF Phone Price : $6.26
Back Order
Motor B13400-12
#2

Blower assembly diagram

Motor

Part #B13400-12

Replaced by #B13400-21S

?
Manufacturer substitution
This part replaces B13400-12. Substitute parts can look different from the original.
In Stock
Gas Valve 12826-06S
#1A

Gas train diagram

Gas valve

Part #12826-06S

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

Blower Shell 18393-00
#7B

Blower assembly diagram

Blower shell

Part #18393-00

Replaced by #0271A00016S

?
Manufacturer substitution
This part replaces 18393-00. Substitute parts can look different from the original.
$120.53
9% OFF Phone Price : $132.53
In Stock
Ignition Mod B13707-24
#3

Gas train diagram

Ignition mod

Part #B13707-24

Replaced by #BG1600M51EF-1AA

?
Manufacturer substitution
This part replaces B13707-24. Substitute parts can look different from the original.
$191.94
6% OFF Phone Price : $203.94
In Stock
Blower Wheel B13680-16
#3A

Blower assembly diagram

Blower wheel

Part #B13680-16

Replaced by #B1368016S

?
Manufacturer substitution
This part replaces B13680-16. Substitute parts can look different from the original.
In Stock
Furnace Air Pressure Switch B13701-33
#3B

Misc. electrical and hardware diagram

Furnace air pressure switch

Part #B13701-33

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

Blower Wheel B13680-47
#3D

Blower assembly diagram

Blower wheel

Part #B13680-47

Replaced by #D6723306S

?
Manufacturer substitution
This part replaces B13680-47. Substitute parts can look different from the original.
$119.58
9% OFF Phone Price : $131.58
In Stock

Repair guides for front-engine lawn tractors

How to replace a ground drive belt on a riding lawn mower

How to replace a ground drive belt on a riding lawn mower

Replace the ground drive belt if it's broken or too worn to spin the transaxle pulley.…

Repair difficulty
Time required
 45 minutes or less
How to replace a blade clutch cable on a riding lawn mower

How to replace a blade clutch cable on a riding lawn mower

If the blades don't spin on your riding mower when you shift the lever, the blade clutch cable could be broken. Here’s h…

Repair difficulty
Time required
 30 minutes or less
How to replace a riding lawn mower blade drive belt

How to replace a riding lawn mower blade drive belt

Replace the blade drive belt if it's broken or won't spin the cutting blades because of wear.…

Repair difficulty
Time required
 45 minutes or less

Articles and videos for front-engine lawn tractors

Should I get an electric riding mower?

Should I get an electric riding mower?

Get help deciding whether to make the switch to a battery-powered riding mower…

How to enjoy all the online benefits we offer on our Sears PartsDirect website

How to enjoy all the online benefits we offer on our Sears PartsDirect website

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…

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.…