Trim Kit 4378056

Brand: Whirlpool · Appliance: Microwave · Fits: 10 models · Reference price: $120.99

4378056 is a Whirlpool replacement part (trim kit) for microwaves. Our fitment data lists 10 models that use it.

When to replace this part

Storage, trim and cosmetic hardware

Symptom: A cracked shelf, broken door bin, worn hinge, or missing trim piece -- cosmetic and storage wear rather than a functional breakdown.

Check: Match the physical dimensions and mounting tabs of the old part before ordering; these pieces are often model-specific even between visually similar models.

Models that use this part

Other parts for model GM8131XEQ1

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

• Bushing 4358460
• Foam Seal 4158864
• Insulation 4358464
• Mounting Bracket 4358467
• Screw 4358357
• Trim Kit 4378055
• Trim Kit 4378057
• Switch 4158841

Reference price and where to compare

The reference price on file for this part is $120.99. It is informational only, not an offer or an Amazon price — RepairKitHub does not sell parts directly.

Compare 4378056 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