Whirlpool
Countertop Microwave

Model #MG3090XBB0 Whirlpool microwave

Here are the repair parts and diagrams for your Whirlpool MG3090XBB0 microwave. 

The diagram(s) below can help you find the right part.  If you’d like help, we invite you to call our customer service number at the top of the page, or click chat.

On this page, you can also find any manuals, installation guides and error code tables associated with this model.

For advice on diagnosing problems with appliances, lawn & garden equipment and other products, check out the videos, repair guides and articles in our DIY section.

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Showing 10 of 73 parts

Microwave High-Voltage Capacitor

#4

Cabinet Diagram

Microwave high-voltage capacitor

Part #WP4375020
?This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including  4375020
This part replaces 4375020

$57.99

In Stock

Microwave Magnetron Thermostat

#5

Magnetron and air flow Diagram

Microwave magnetron thermostat

Part #WP4375079
?This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including  4375079
This part replaces 4375079

$35.17

In Stock

Microwave Crisping Tray

#2

Turn table and grille Diagram

Microwave crisping tray

Part #WPW10120480
?This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including  4375191
This part replaces 4375191

$61.10

In Stock

Magnetron

#4

Magnetron and air flow Diagram

Magnetron

Part #4375072

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

Microwave Crisping Tray Handle

#13

Turn table and grille Diagram

Microwave crisping tray handle

Part #W10851464
?This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including  4378400
This part replaces 4378400

$9.02

In Stock

Microwave Turntable Motor Spacer

#11

Turn table and grille Diagram

Microwave turntable motor spacer

Part #4375252
?This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including  4375037
This part replaces 4375037

$23.50

In Stock

Screw

#2

Cabinet Diagram

Screw

Part #8206180
?This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including  4375035
This part replaces 4375035

$11.00

In Stock

Fan Motor

#6

Magnetron and air flow Diagram

Fan motor

Part #4375075

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

Thermostat

#8

Magnetron and air flow Diagram

Thermostat

Part #4375078

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

Thermostat

#2

Magnetron and air flow Diagram

Thermostat

Part #4375080

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