Skip to Content
  • 2 Day Quick Delivery! 2 Day Quick Delivery!
  • 365 Day Return Policy! 365 Day Return Policy!
  • 15 million satisfied customers 15 million satisfied customers
  • Over 2.1 Million Parts In Stock Over 2.1 Million Parts In Stock
  • Repair ForumFree Tech Support!
  • Google Trusted Store Google Trusted Store

Lg Microwave MT4155SPT Parts

Best Seller
Microwave Door Interlock Switch
Genuine Lg part
By: Lg
Part Number: 6600W1K001D

Fix a microwave that won't start or runs with the door open. This door interlock switch ensures safe operation by detecting when the door is fully closed.

More
$21.46
Compare At:
$25.75
You Save:
$4.29

IN STOCK
Ships Monday Guaranteed
Add to Cart
Best Seller
Microwave Magnetron
Genuine Lg part
By: Lg
Part Number: 6324W1A001L

Microwave won't heat but runs normally? A failed magnetron is the likely cause. This part generates the microwaves that cook food. Moderate DIY repair.

This part fixes the following symptoms
  • Noisy
See more...
Do-It-Yourself Stories from Customers like You Didn't heat.   Harry W. • Maple Park , IL • January 21, 2018

My son told me that almost all the microwave ovens that came into the repair center he worked at, 15 years ago, had a defective magnetron. I ordered a magnetron, and sat back until one shipped. The one that came, the first time, was in a small factory cardboard box, which was in a large bubble-pak Fedex envelope; which didn't show any signs of abuse. Inside, however, the factory box was beat up. Removing the magnetron, I noticed that the socket, as well as its' pins, was bent, and loose in the... Read more

More
$130.69
Compare At:
$154.21
You Save:
$23.52

IN STOCK
Ships Monday Guaranteed
Add to Cart
Best Seller
Microwave Door Latch Spring
Genuine Lg part
By: Lg
Part Number: 4970WRA001G

Microwave door won't stay closed or latch? This door latch spring provides tension to secure the door shut. DIY repair in under 10 minutes with video help.

Do-It-Yourself Stories from Customers like You Lg microwave door would not latch closed   Audrey S. • Rochester , NY • February 05, 2018

Ordered door latch part and new spring. You Tube video helped me identify what I needed. I tried the fix recommended and it didn't work so I ordered the parts. It took less than 5 minutes to switch out the old for the new. If the door doesn't latch, you can't run the microwave and it's key. It wasn't an expensive or hard fix to get my microwave up and running again. So pleased with AppliancePartsPros for having what I needed and being reasonable about pricing. Turnaround time was excellent! Read more

More
$10.58
Compare At:
$11.64
You Save:
$1.06

IN STOCK
Ships Monday Guaranteed
Add to Cart
Best Seller
Microwave Door Interlock Switch
Genuine Lg part
By: Lg
Part Number: 6600W1K001C

This is a micro switch that detects whether the microwave door is properly closed and latched. It is part of the safety interlock system that prevents the microwave from operating with the door open. Replace this switch if the microwave does not start when the door is shut, runs with the door open, blows a fuse when the door closes, or stops mid-cycle intermittently.

Do-It-Yourself Stories from Customers like You Interior light and turntable failed at the same moment.   Stacey B. • New Bern , NC • February 01, 2021

Knowing the odds of 2 failures occurring at the same exact time was unusually high, I just searched your site for what other broken items might affect these two failures. Came up with next control item upstream and tallied that item failure with percentages of successful repairs, (4 mins.) door safety switch. Since I had to change out the most likely of the 3 and since I was already was going to be into the switch panel I ordered all 3 and swapped them all out to cover my butt, as they were... Read more

More
$21.46
Compare At:
$25.54
You Save:
$4.08

IN STOCK
Ships Monday Guaranteed
Add to Cart
Best Seller
Microwave Diode
Genuine Lg part
By: Lg
Part Number: 6021W3B001V

Microwave won't heat or makes loud buzzing noise? The diode regulates magnetron current flow. Simple repair—test with multimeter for continuity.

Do-It-Yourself Stories from Customers like You Our microwave made a "pop" sound and stopped working/   Daniel D. • Chesterfield , MO • September 12, 2020

I have a multimeter so I was able to check the fuse per website recommendations and it was blown. However, the capacitor on the microwave was also original so I elected to replace the capacitor, fuse, and the ground protect diode. The repair was very simple (making sure the capacitor was discharged before replacing) and the microwave is now up and running again. Excellent trade to buy $40 worth of parts rather than a new $400 microwave. One nit - Kenmore puts a screw in the back that... Read more

More
$16.95
Compare At:
$20.17
You Save:
$3.22

IN STOCK
Ships Monday Guaranteed
Add to Cart
Microwave Turntable Motor
Genuine Lg part
By: Lg
Part Number: 6549W1S011B

Turntable stopped turning or making noise? This microwave motor rotates the glass tray for even heating. Easy DIY fix with basic tools in under an hour.

This part fixes the following symptoms
  • Tray won't turn
See more...
Do-It-Yourself Stories from Customers like You Microwave turn table stopped rotating   Thomas T. • Willow Grove , PA • September 08, 2015

I googled the make and model, and found the part on AppliancePartsPros.com. The underside of the oven has a metal grille with numerous openings of various shapes and sizes. There is a rectangle that is punched into this grille, just below the motor. I pried between the vent holes to snap the connections near the perimeter on the punched rectangle. I only did this on three sides. Then pry up the rectangle away from the connected side. Undid the hold down screw, separated the motor from the... Read more

More
$36.95
Compare At:
$43.97
You Save:
$7.02

IN STOCK
Ships Monday Guaranteed
Add to Cart
Microwave Door Latch Assembly
Genuine Lg part
By: Lg
Part Number: 4026W2A016A

Microwave runs with door open or won't start? A faulty door latch prevents the interlock switches from engaging. This replacement latch restores safe operation.

Do-It-Yourself Stories from Customers like You The door latch broke when the kids were fighting over the microwave   Bart M. • Clarksville , TN • August 29, 2014

Determined which part was broken and entered the model number into the search window. My part was on the list of available parts. Thanks AppliancePartsPros.com! Read more

More
$13.95
Compare At:
$16.60
You Save:
$2.65

IN STOCK
Ships Monday Guaranteed
Add to Cart
Microwave Glass Turntable Tray
Genuine Lg part
By: Lg
Part Number: 3390W1A044B

Glass turntable tray for microwaves. Provides a stable, food-safe rotating surface for even heating. Replace your cracked, chipped, or missing tray.

Do-It-Yourself Stories from Customers like You Broken microwave plate   Jose B. • San Antonio , TX • January 08, 2015

Contacted several local places, & on line. However none carried the part or made it difficult, which I realized they just didn't know how to look for the part I wanted. I contacted appliance parts, & they immediately found it & it was not as expensive as other places who did not stock it to begin with. They sent it right away, & I received it in less than 3 days. Thanks, I now know where to search,and who to recommend. Read more

More
$35.95
Compare At:
$42.42
You Save:
$6.47

IN STOCK
Ships Monday Guaranteed
Add to Cart
Microwave Rotating Ring Assembly
Genuine Lg part
By: Lg
Part Number: 5889W1A005B

Supports the turntable drum for smooth rotation. Replace if cracked, broken, or worn to eliminate scraping noise and restore stable spinning action.

This part fixes the following symptoms
  • Tray won't turn
See more...
Do-It-Yourself Stories from Customers like You Rollers on tray worn flat   Donny H. • Fort Mill , SC • November 15, 2014

Found Services online , was able to locate Part,by name and model. Place order and Received part total time 3 days. Well, pleased With handling, thought shipping was a bit High no more than weight, might ship in bubble Envelope. But still was please and will use your Servises Again 5??s. Donny Humphreys, South Carolina. Read more

More
$24.68
Compare At:
$29.62
You Save:
$4.94

IN STOCK
Ships Monday Guaranteed
Add to Cart
Appliance Truss Head Tapping Screw
Genuine Lg part
By: Lg
Part Number: 1TTL0402818

Truss head tapping screw secures panels, brackets, and covers in appliances. Replaces missing or damaged fasteners to restore snug fit and alignment.

Do-It-Yourself Stories from Customers like You Broken door handle on lg over range microwave   William M. • Town Creek , AL • June 29, 2017

Removed old broken door handle per video link on AppliancePartsPro.com. Installed new handle with no issues. <10 minute job at best. Read more

More
$11.45
Compare At:
$13.63
You Save:
$2.18

IN STOCK
Ships Monday Guaranteed
Add to Cart
Microwave High Voltage Capacitor
Genuine Lg part
By: Lg
Part Number: 0CZZW1H004C

Microwave not heating or sparking inside? This high voltage capacitor stores power for the magnetron. Common repair taking 30-45 minutes with care.

More
$29.95
Compare At:
$35.94
You Save:
$5.99

IN STOCK
Ships Monday Guaranteed
Add to Cart
Screw, Tapping, Truss Head (Single)
Genuine Lg part
By: Lg
Part Number: 1TTG0402422

This is a truss-head tapping screw used to secure trim, panels, and small assemblies on compatible LG appliances. It provides a low-profile, wide-bearing head that helps hold parts flush and resist pull-through. What it does:

  • Fastens plastic and sheet-metal components where a self-tapping thread is needed
  • Truss head spreads load to prevent damage to soft or thin materials
  • Helps secure control panels, brackets, or trim pieces that require a low-profile head
  • Common replacement when original mounting screws are missing, stripped, or corroded
What's included:
  • One truss-head tapping screw
Install notes:
  • Use the correct screwdriver bit and moderate torque to avoid stripping the screw or workpiece
  • Start threading straight and let the screw form threads without forcing at an angle
  • Disconnect power and follow appliance-specific service safety procedures before working internally
  • Replace any damaged mating threads or clips for a secure fit

More
$10.58
Compare At:
$11.64
You Save:
$1.06

IN STOCK
Ships Monday Guaranteed
Add to Cart
Lever Release (Release Lever)
Genuine Lg part
By: Lg
Part Number: MFC41909501

This replacement lever release restores the lever that engages and releases an appliance latch so doors, drawers or dispensing components open and operate smoothly. It fits where a snapped or worn lever prevents normal release action. What it does:

  • Replaces a broken, cracked or worn release lever that won't operate
  • Restores proper engagement so door, drawer or dispenser can open and close correctly
  • Helps stop sticking, slipping or incomplete release when you press or pull the lever
  • Matches OEM form and function for a direct fit where specified
What's included:
  • One lever release
Install notes:
  • Disconnect power (and water if applicable) before beginning service
  • Remove exterior trim or access panels to reach the lever assembly; keep small fasteners organized
  • Inspect surrounding latch components; replace any damaged clips or springs for reliable operation

Do-It-Yourself Stories from Customers like You Built in microwave: broken door release lever   Horst K. • Spring , TX • April 22, 2016

One of the pins holding the door release lever of my built into a wall cabinet, 9-year old, microwave had broken off keeping me from opening the microwave door. As one other customer mentioned, the actual repair was easy. Once I had received the replacement lever from AppliancePartsPro.com, replacing the lever took me less that 15 seconds. Putting the microwave cover back on and resetting it into its place in the cabinet took another 15 minutes. AppliancePartsPro.com states on their website... Read more

More
$11.78
Compare At:
$14.02
You Save:
$2.24

IN STOCK
Ships Monday Guaranteed
Add to Cart
Screw, Tapping, Truss Head
Genuine Lg part
By: Lg
Part Number: 1TTL0402418

 

More
$8.21
Compare At:
$9.03
You Save:
$0.82

IN STOCK
Ships Monday Guaranteed
Add to Cart
Microwave Button Spring
Genuine Lg part
By: Lg
Part Number: 4B72023A

Button spring for microwave control panels. Replace when buttons feel unresponsive or stick. Verify your model number for proper fit before ordering.

More
$11.78
Compare At:
$14.02
You Save:
$2.24

IN STOCK
Ships Monday Guaranteed
Add to Cart
Lamp (Oven/Baseless)
Genuine Lg part
By: Lg
Part Number: 6912W3B002L

 

More
$23.94
Compare At:
$26.33
You Save:
$2.39

IN STOCK
Ships Monday Guaranteed
Add to Cart
  • Over 2.1 Million Parts In Stock Over 2.1 Million Parts In Stock
  • 2 Day Quick Delivery! 2 Day Quick Delivery!
  • 365 Day Return Policy! 365 Day Return Policy!
  • Repair ForumFree Tech Support!
  • Google Trusted Store Google Trusted Store