Door Switch 317005121

Brand: Tappan · Appliance: Microwave · Fits: 10 models · Reference price: $58.81

317005121 is a Tappan replacement part (door switch) for microwaves. Our fitment data lists 10 models that use it.

When to replace this part

Door, lid switches and latches

Symptom: The appliance won't start, or stops, unless the lid or door is fully latched shut.

Check: Listen for an audible click when the lid or door closes. No click, or a visibly cracked plastic tab on the latch, points to this part.

Models that use this part

Other parts for model SMS139T1B2

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

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Reference price and where to compare

The reference price on file for this part is $58.81. It is informational only, not an offer or an Amazon price — RepairKitHub does not sell parts directly.

Compare 317005121 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