Microwave Fuse 3B74133C

Brand: LG · Appliance: Microwave · Fits: 9 models · Reference price: $10.06

3B74133C is a LG replacement part (microwave fuse) for microwaves. Our fitment data lists 9 models that use it.

When to replace this part

General hardware and mounting parts

Symptom: A small mechanical or mounting part has failed, cracked, or gone missing.

Check: Compare the physical shape and mounting points to the original piece, and confirm the exact part number against your model plate before ordering.

Models that use this part

Other parts for model 72180039700

If you are repairing that appliance, these are the most model-specific parts on file for the same model.

• Bracket MAZ37440501
• Bracket MAZ38922001
• Cavity Assembly ABU33693602
• Controller Assembly ACM33689602
• Flat Case 3112W1F056S
• Instructions MFL39433001
• Membrane MFM39438702
• Microwave Base Plate Assembly 3302W0A047M

Reference price and where to compare

The reference price on file for this part is $10.06. It is informational only, not an offer or an Amazon price — RepairKitHub does not sell parts directly.

Compare 3B74133C listings on Amazon

Before you order

• Match the part number character for character, including dashes and trailing letters; a single different character is usually a different part.
• Confirm your appliance's model number on its data plate and check that it appears in the list above (or use the model lookup tool).
• If a seller offers a substitute number, check that it appears in this page's replacement list or in the manufacturer's documentation.

Model lookup tool