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

  • Keep track of the models you own in your profile

    Sign in or Register to view or add models

Schedule a repair
Whirlpool
Wall Oven/Microwave Combo

Model # RM278BXV3 Official Whirlpool electric built-in oven with microwave

Here are the diagrams and repair parts for Official Whirlpool RM278BXV3 electric built-in oven with microwave, 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 295 parts  |
Light Bulb 311255
#29

Oven diagram

Light bulb

Part #311255

Replaced by #40A15

?
Manufacturer substitution
This part replaces 311255. Substitute parts can look different from the original.
BEST SELLER
$14.40 | 
12% OFF Phone Price : $16.40
In Stock
Adhesive 307576

#NI

All parts diagram

Adhesive

Part #307576

Replaced by #W10841140

?
Manufacturer substitution
This part replaces 307576. Substitute parts can look different from the original.
BEST SELLER
$14.99 | 
12% OFF Phone Price : $16.99
In Stock
Bake Element 313827
#26B

Oven diagram

Bake element

Part #313827

Replaced by #WP308180

?
Manufacturer substitution
This part replaces 313827. Substitute parts can look different from the original.
BEST SELLER
$44.81 | 
12% OFF Phone Price : $50.81
In Stock
Bake Element 661170
#26

Oven diagram

Bake element

Part #661170

Replaced by #WP308180

?
Manufacturer substitution
This part replaces 661170. Substitute parts can look different from the original.
BEST SELLER
$44.81 | 
12% OFF Phone Price : $50.81
In Stock
Range Bake Element 308180
#26A

Oven diagram

Range bake element

Part #308180

Replaced by #WP308180

?
Manufacturer substitution
This part replaces 308180. Substitute parts can look different from the original.
BEST SELLER
$44.81 | 
12% OFF Phone Price : $50.81
In Stock
Magnetron 311993
#26B

Magnetron and air flow diagram

Magnetron

Part #311993

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

Magnetron 313034
#26E

Magnetron and air flow diagram

Magnetron

Part #313034

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

Magnetron 311994
#26C

Magnetron and air flow diagram

Magnetron

Part #311994

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

Magnetron 311992
#26A

Magnetron and air flow diagram

Magnetron

Part #311992

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

Magnetron 660595
#26

Magnetron and air flow diagram

Magnetron

Part #660595

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

RECOMMENDED MAINTENANCE PARTS AND ACCESSORIES

Parts & More