Whirlpool
Countertop Microwave

Model # MT4155SPS3 Official Whirlpool microwave

Here are the diagrams and repair parts for Official Whirlpool MT4155SPS3 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 83 parts  |

Microwave High-voltage Capacitor 8184813
#4

Oven interior parts diagram

Microwave high-voltage capacitor

Part #8184813

Replaced by #WP8184813

?
Manufacturer substitution
This part replaces 8184813. Substitute parts can look different from the original.
$79.79
7% OFF Phone Price : $85.79
In Stock
Microwave Fuse 8183507
#16

Oven interior parts diagram

Microwave fuse

Part #8183507

Replaced by #WP8183507

?
Manufacturer substitution
This part replaces 8183507. Substitute parts can look different from the original.
This item is not returnable
$14.39
12% OFF Phone Price : $16.39
In Stock
Microwave Door Release Lever 8205451
#3

Control panel parts diagram

Microwave door release lever

Part #8205451

Replaced by #WP8205451

?
Manufacturer substitution
This part replaces 8205451. Substitute parts can look different from the original.
$36.14
14% OFF Phone Price : $42.14
In Stock
Cook Tray W10143945
#6

Oven cavity parts diagram

Cook tray

Part #W10143945

Replaced by #WP8172138

?
Manufacturer substitution
This part replaces W10143945. Substitute parts can look different from the original.
$55.28
10% OFF Phone Price : $61.28
In Stock
Screw 4358192
#3

Oven cavity parts 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
$18.19
10% OFF Phone Price : $20.19
In Stock
Screw 8171862
#13

Oven cavity parts 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
Power Cord 8206281
#9

Oven interior parts diagram

Power cord

Part #8206281

In Stock
Wire Harness 8206282
#6

Oven interior parts diagram

Wire harness

Part #8206282

In Stock
Magnetron 8205460
#13

Oven interior parts diagram

Magnetron

Part #8205460

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

Spring 8184272
#6

Control panel parts diagram

Spring

Part #8184272

Replaced by #WP4158178

?
Manufacturer substitution
This part replaces 8184272. Substitute parts can look different from the original.
This item is not returnable
$6.09
14% OFF Phone Price : $7.09
In Stock

Effective articles & videos to help repair your microwaves

5 Holiday Cleaning Tasks Essential to Boosting Your Home’s Image

5 Holiday Cleaning Tasks Essential to Boosting Your Home’s Image

Get tips on completing essential holiday cleaning tasks to brighten your home.…

Introducing new technical repair content that we’re developing for the Sears Technical Institute

Introducing new technical repair content that we’re developing for the Sears Technical Institute

Learn about Sears Technical Institute and the advanced technical content being developed for aspiring appliance techs.…

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.…