Light Socket Kit 4387478

Brand: Whirlpool · Appliance: Refrigerator · Fits: 413 models · Reference price: $25.65

4387478 is a Whirlpool replacement part (light socket kit) for refrigerators. Our fitment data lists 413 models that use it.

When to replace this part

Interior lighting

Symptom: The interior light doesn't turn on when the door opens.

Check: Confirm power is reaching the socket, then check the door-activated light switch before assuming the bulb itself is at fault.

Models that use this part

Part numbers it replaces

The manufacturer lists 4387478 as the replacement for these earlier part numbers. Substitute parts can look different from the original but serve the same function.

• W11384469 — Refrigerator Door Switch
• WP1118894 — Refrigerator Light Switch

Replacement video

A technician's video showing how to replace part 4387478. Plays from YouTube when you click.

Other parts for model 10657714704

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

• Beverage Holder 2187254K
• Refrigerator Bracket 2303113
• Refrigerator Control Box W10134301
• Refrigerator Cover 2321770US
• Refrigerator Cover W10151405
• Refrigerator Cover (off-white) 2321770T
• Refrigerator Diffuser W10143436
• Refrigerator Door Handle (stainless) 2254604S

Reference price and where to compare

The reference price on file for this part is $25.65. It is informational only, not an offer or an Amazon price — RepairKitHub does not sell parts directly.

Compare 4387478 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