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721-67903 Parts

Some parts shown may not be for your model. To see parts for your model only, select it from "Matching Model Numbers" list on the left.

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Duct Cover (Vent Housing)
Genuine Lg part
By: Lg
Part Number: 3550W1A090A

This duct cover is the external housing panel that protects and routes dryer vent airflow, helping maintain proper venting and preventing debris from entering the duct area. Fits as a direct replacement for damaged or missing vent housing covers. What it does:

  • Covers and protects the dryer vent opening and internal duct connection
  • Helps direct exhaust airflow from the appliance to the exhaust duct
  • Prevents lint, dust, and small debris from entering the vent cavity
  • Restores a secure, finished vent connection when the original cover is cracked or broken
What's included:
  • One duct cover
Install notes:
  • Disconnect power (and gas, if applicable) and unplug the appliance before starting
  • Access may require removing the rear panel or moving the appliance
  • Handle edges carefully; use gloves to avoid cuts and ensure a snug fit to prevent air leaks
  • If seal or mounting hardware is damaged, replace with correct fasteners or gaskets for a proper fit

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$65.86
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$69.19
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Air Duct Cover
Genuine Lg part
By: Lg
Part Number: 3550W1A093A

 

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$27.43
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$28.64
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$1.21

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Bracket
Genuine Lg part
By: Lg
Part Number: 3B72717A

 

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$13.00
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$14.30
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Bracket
Genuine Lg part
By: Lg
Part Number: 4810W2U002A

 

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$1.06

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Bracket
Genuine Lg part
By: Lg
Part Number: 4810W3H002A

 

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Bracket
Genuine Lg part
By: Lg
Part Number: 4810W3H003A

 

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Bracket
Genuine Lg part
By: Lg
Part Number: 4810W3H004A

 

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Spring
Genuine Lg part
By: Lg
Part Number: 4970WRA001F

 

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$10.58
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Shaft Ring
Genuine Lg part
By: Lg
Part Number: 4B73725A

 

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$10.58
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Air Tunnel
Genuine Lg part
By: Lg
Part Number: 5264W1A015E

 

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$27.41
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Service Manual
Genuine Lg part
By: Lg
Part Number: MFL06275102

 

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$57.76
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$63.53
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Owners Manual
Genuine Lg part
By: Lg
Part Number: MFL31663701

 

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$57.76
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$60.71
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$2.95

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Door Latch Hook
Genuine Lg part
By: Lg
Part Number: 4026W2A015A

The Door Latch Hook is an OEM replacement part for LG microwaves. Located internally on the door frame, this metal hook secures firmly into the microwave's door latch bracket when closed. As a common wear point, the hook can experience minor warping over many years of use.

Causes of a bad door latch hook include normal wear and tear, loss of tension, or deformation from frequent door opening and closing cycles long-term.

Symptoms of a bad latch hook include:

  • Door that does not close fully or completely latch in place  
  • Gaps forming in the door seal when shut
  • Inability to achieve a tight, solid seal around the perimeter 
  • Latch hook failing to grasp the bracket securely

This OEM LG part is also compatible with Sears/Kenmore microwaves. 

Do-It-Yourself Stories from Customers like You Glass fell out of its retainers and plastic clips holding the frame assembly to the door broke off   Steve C. • Caledonia , WI • September 23, 2015

Careful placement of new screws into the inside of the outer door that now hold the frame assembly to the door secured the frame assembly to the outer door. All of the other parts I bought and replaced were a waste of money. I figured since I had them I might as well install them anyways. Easier than sending them back since I had the whole thing apart anyways. The part I really needed was no longer available, the outside door. The glass reinstalled into the retainers in the door without a... Read more

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Microwave Cooking Tray
Genuine Lg part
By: Lg
Part Number: 1B71961A

Size: Approx 13 inches. Glass.

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Switch
Genuine Lg part
By: Lg
Part Number: 3B73361E

 

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Lamp Cover
Genuine Lg part
By: Lg
Part Number: 3550W3L001A

 

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