Cycling Thermostat WP503979

Brand: Whirlpool · Appliance: Dryer · Fits: 154 models · Reference price: $79.80

WP503979 is a Whirlpool replacement part (cycling thermostat) for dryers. Our fitment data lists 154 models that use it.

When to replace this part

Heat control (thermostats, fuses, heating element)

Symptom: The dryer runs but produces no heat, or it shuts off partway through the cycle.

Check: With the dryer unplugged, check continuity across the part with a multimeter -- no continuity means it has failed. Clear the lint vent first, since a blocked vent is what usually trips a thermal fuse in the first place.

Models that use this part

Other parts for model ALE665SAC-PALE665SAC

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

• Cap, End Rh (alw990eac,palw99eac/ac1) 40012701C
• Door, Dryer (pale643rac) 503642C
• Duct 503605
• Duct 505528
• Medallion 40083301
• Panel, Access (pale643rac) 40045302C
• Panel, Front (palg866sac) 503639C
• Panel, Graphic (bsq) (series 10) 40092501C

Reference price and where to compare

The reference price on file for this part is $79.80. It is informational only, not an offer or an Amazon price — RepairKitHub does not sell parts directly.

Compare WP503979 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