Get free shipping on your order, with any water filter subscription. Find my filter

Open Hamburger Menu
Sears Parts Direct
Tips to find your model number
Whirlpool MT4078SPQ2 countertop microwave

Whirlpool MT4078SPQ2 countertop microwave Parts

Here are the diagrams and repair parts for Whirlpool MT4078SPQ2 countertop microwave, as well as links to manuals and error code tables, if available.

By Schematic
By Part
SELECT DIAGRAM
?

This is the number corresponding to the part on the diagram / schematic

Browse Parts for MT4078SPQ2 Microwaves

  • Cook Guide for Whirlpool MT4078SPQ2 - Part 8204862

    Door parts diagram

    Cook Guide

    Part #8204862

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

  • Fuse for Whirlpool MT4078SPQ2 - Part 4358704

    Oven interior parts diagram

    Fuse

    Part #4358704

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

  • Microwave Door for Whirlpool MT4078SPQ2 - Part 8205467

    Door parts diagram

    Microwave Door

    Part #8205467

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

  • Mounting Bracket for Whirlpool MT4078SPQ2 - Part 8205477

    Latch board parts diagram

    Mounting Bracket

    Part #8205477

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

  • Button Plug for Whirlpool MT4078SPQ2 - Part 4358857

    Oven cavity parts diagram

    Button Plug

    Part #4358857

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

Effective articles & videos to help repair your microwaves

Are DIY appliance repairs safe?

Are DIY appliance repairs safe?

Find out how to stay safe when repairing your appliances.…

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.…

Parts & More

Central Air Conditioner
Electric Range
Elliptical Machine
Farming Equipment
Front-Engine Lawn Tractor
Gas Cooktop
Gas Line Trimmer
Gas Walk-Behind Mower
Lawn Vacuum
Side-By-Side Refrigerator
Storm & Screen Doors
Table Saw
Treadmill
Washer
Water Softener