Whirlpool
Countertop Microwave

Model #MT3100SHB0 Official Whirlpool microwave

Here are the diagrams and repair parts for Whirlpool MT3100SHB0 microwave, as well as links to manuals and error code tables, if available.

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Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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For DIY troubleshooting advice and repair guides, visit our repair help section.

Showing 10 of 73 parts

SCREW

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Microwave screw

Part #4358489
Replaced by #4344826
?
Manufacturer substitution
This part replaces 4358489. Substitute parts can look different from the original.
In Stock
$12.49
Microwave Door Primary Interlock Switch#4

Latch board Diagram

Switch

Part #4158941
Replaced by #4392027
?
Manufacturer substitution
This part replaces 4158941. Substitute parts can look different from the original.
In Stock
$69.11 | 
20% OFF 
MSRP: $86.00
Microwave Screw#14

Oven cavity Diagram

Screw

Part #4358188
Replaced by #WP4158079
?
Manufacturer substitution
This part replaces 4358188. Substitute parts can look different from the original.
This item is not returnable
In Stock
$2.16
Microwave Screw (replaces 4358380, R0654041)#5

Base plate Diagram

Screw

Part #4358192
Replaced by #W11380570
?
Manufacturer substitution
This part replaces 4358192. Substitute parts can look different from the original.
This item is not returnable
In Stock
$18.19 | 
10% OFF 
Phone Price: $20.19
Microwave Screw#16

Oven cavity Diagram

Screw

Part #8171862
Replaced by #8169474
?
Manufacturer substitution
This part replaces 8171862. Substitute parts can look different from the original.
This item is not returnable
In Stock
$5.24
Microwave Door Primary Interlock Switch#5

Latch board Diagram

Switch

Part #4158769
Replaced by #4392027
?
Manufacturer substitution
This part replaces 4158769. Substitute parts can look different from the original.
In Stock
$69.11 | 
20% OFF 
MSRP: $86.00
Microwave Screw#15B

Oven cavity Diagram

Screw

Part #8171876
Replaced by #8169474
?
Manufacturer substitution
This part replaces 8171876. Substitute parts can look different from the original.
This item is not returnable
In Stock
$5.24
Microwave Stirrer Fan Cover Clip#3

Oven cavity Diagram

Stirrer rivet

Part #4359508
Replaced by #WP4359508
?
Manufacturer substitution
This part replaces 4359508. Substitute parts can look different from the original.
This item is not returnable
In Stock
$6.02 | 
14% OFF 
Phone Price: $7.02
Microwave High-Voltage Diode#8

Oven interior Diagram

Voltage wire

Part #8171879
Replaced by #WP8205489
?
Manufacturer substitution
This part replaces 8171879. Substitute parts can look different from the original.
In Stock
$30.69 | 
14% OFF 
Phone Price: $35.69
Tray#6

Oven cavity Diagram

Cook tray

Part #8171806
Replaced by #WP8204899
?
Manufacturer substitution
This part replaces 8171806. Substitute parts can look different from the original.
In Stock
$57.69

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