Can’t find your part?   Contact us:
+1-309-603-4777
Sears Parts Direct
Orders

  • Keep track of the models you own in your profile

    Sign in or Register to view or add models

Schedule a repair
Whirlpool
Central Air Conditioner

Model # R121 Official Whirlpool air conditioner heat pump

Here are the diagrams and repair parts for Official Whirlpool R121 air conditioner heat pump, 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 129 parts  |
Screw 487910
#16

Air flow and control diagram

Screw

Part #487910

Replaced by #WP488729

?
Manufacturer substitution
This part replaces 487910. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$4.39
| 
19% OFF Phone Price : $5.39
In Stock
Valve 876764
#6A

Optional diagram

Valve

Part #876764

Replaced by #876764

?
Manufacturer substitution
This part replaces 876764. Substitute parts can look different from the original.
BEST SELLER
$26.12
| 
19% OFF Phone Price : $32.12
In Stock
Refrigerator Screw 1157158
#3

Cabinet diagram

Refrigerator screw

Part #1157158

Replaced by #WP489069

?
Manufacturer substitution
This part replaces 1157158. Substitute parts can look different from the original.
This item is not returnable
$4.39
| 
19% OFF Phone Price : $5.39
In Stock
Screw, 8 X 1 488480
Screw, 8 x 1

Part #488480

Replaced by #WP489069

?
Manufacturer substitution
This part replaces 488480. Substitute parts can look different from the original.
This item is not returnable
$4.39
| 
19% OFF Phone Price : $5.39
In Stock
Sealer-gum 212432
#12

Optional diagram

Sealer-gum

Part #212432

Replaced by #212643

?
Manufacturer substitution
This part replaces 212432. Substitute parts can look different from the original.
This item is not returnable
$50.09
| 
11% OFF Phone Price : $56.09
In Stock
Capacitor 952384
#3

Air flow and control diagram

Capacitor

Part #952384

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

Wire Tie 612805
#9

Air flow and control diagram

Wire tie

Part #612805

Replaced by #WPW10339879

?
Manufacturer substitution
This part replaces 612805. Substitute parts can look different from the original.
This item is not returnable
$4.37
| 
19% OFF Phone Price : $5.37
In Stock
Cable Tie 857547
#31

Unit diagram

Cable tie

Part #857547

Replaced by #WPW10339879

?
Manufacturer substitution
This part replaces 857547. Substitute parts can look different from the original.
This item is not returnable
$4.37
| 
19% OFF Phone Price : $5.37
In Stock
Sealer 99344
#13

Optional diagram

Sealer

Part #99344

Replaced by #4318168

?
Manufacturer substitution
This part replaces 99344. Substitute parts can look different from the original.
$29.89
In Stock
Refrigerant Access Valve, 5/8-in 978029
#6F

Optional diagram

Refrigerant access valve, 5/8-in

Part #978029

Replaced by #978029

?
Manufacturer substitution
This part replaces 978029. Substitute parts can look different from the original.
$41.18
In Stock

Symptoms for electric ranges

Should I replace a damaged glass cooktop?

Main causes: impact from dropping an item on the glass surface, ceramic glass surface flaw, surface element temperature ...

Read more

Why doesn't my electric range's surface element heat properly?

Main causes: faulty surface element, burner control switch failure, temperature limiter not working properly, loose wiri...

Read more

Repair guides for electric ranges

How to replace a range radiant surface element

How to replace a range radiant surface element

If the element on your glass cooktop isn't heating up even though it gets power, replace it yourself, in about 45 minute...

Read more
Repair difficulty
Time required
45 minutes or less
How to replace an electric range oven control board

How to replace an electric range oven control board

If the electronic oven control board isn't powering the bake and broil functions, you can replace it in less than half a...

Read more
Repair difficulty
Time required
15 minutes or less
How to replace a range coil surface element

How to replace a range coil surface element

Easily replace a coil surface element in 15 minutes or less by following these step-by-step instructions....

Read more
Repair difficulty
Time required
15 minutes or less

Effective articles & videos to help repair your central air conditioners

View all
Maintaining your air conditioner

Maintaining your air conditioner

Learn how to maintain your central air conditioner to keep it running smoothly all summer long....

Read more
How to prevent the 2 most common AC failures from ruining your summer

How to prevent the 2 most common AC failures from ruining your summer

Get tips to help keep your central AC running all summer long...

Read more
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....

Read more

Parts & More