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 # RA121K0 Official Whirlpool air conditioner

Here are the diagrams and repair parts for Official Whirlpool RA121K0 air conditioner, 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 107 parts  |
Cement 279368
#10

Optional parts diagram

Cement

Part #279368

Replaced by #WP279368

?
Manufacturer substitution
This part replaces 279368. Substitute parts can look different from the original.
BEST SELLER
$42.72
| 
12% OFF Phone Price : $48.72
In Stock
Valve Kit 978025
#6B

Optional parts diagram

Valve kit

Part #978025

Replaced by #WP978025

?
Manufacturer substitution
This part replaces 978025. Substitute parts can look different from the original.
$29.51
| 
17% OFF Phone Price : $35.51
In Stock
Valve Kit 978026
#6C

Optional parts diagram

Valve kit

Part #978026

Replaced by #978026

?
Manufacturer substitution
This part replaces 978026. Substitute parts can look different from the original.
$34.19
| 
15% OFF Phone Price : $40.19
In Stock
Sealer 212643
#12

Optional parts diagram

Sealer

Part #212643

Replaced by #212643

?
Manufacturer substitution
This part replaces 212643. Substitute parts can look different from the original.
This item is not returnable
$50.09
| 
11% OFF Phone Price : $56.09
In Stock
Valve Kit 978030
#6G

Optional parts diagram

Valve kit

Part #978030

Replaced by #978030

?
Manufacturer substitution
This part replaces 978030. Substitute parts can look different from the original.
$40.49
| 
13% OFF Phone Price : $46.49
In Stock
Seal 859600
#36

Unit diagram

Seal

Part #859600

Replaced by #WP854334

?
Manufacturer substitution
This part replaces 859600. Substitute parts can look different from the original.
$9.99
| 
9% OFF Phone Price : $10.99
In Stock
Seal Strip 1180698
#8

Air flow and control diagram

Seal strip

Part #1180698

Replaced by #WP854334

?
Manufacturer substitution
This part replaces 1180698. Substitute parts can look different from the original.
$9.99
| 
9% OFF Phone Price : $10.99
In Stock
Front 8031299
#8

Cabinet diagram

Front

Part #8031299

$35.44
In Stock
Ge Room Air Conditioner Outdoor Cover 484184
#14D

Optional parts diagram

Ge room air conditioner outdoor cover

Part #484184

$54.49
| 
10% OFF Phone Price : $60.49
In Stock
Cover 484067
#14B

Optional parts diagram

Cover

Part #484067

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

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