Description
🧾 Description
Restore proper temperature regulation in your dryer with the WP503979 Cycling Thermostat, a genuine OEM replacement designed for Whirlpool-brand dryers (and its affiliated brands such as Maytag, Amana, and Crosley). This thermostat monitors internal air temperature and cycles the heating element on and off to maintain safe and consistent drying temperatures. When it fails, you may notice your dryer running too hot, overheating, or drying very slowly.
Built to meet the manufacturer’s exact specifications, the WP503979 offers reliable cycling control and long-term durability. ⚠️ Note: Always disconnect your dryer from power before installation. Verify your model number to confirm compatibility before purchasing.
⚙️ Features & Benefits
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✅ Genuine OEM part — engineered to match Whirlpool’s quality, fit, and performance. maytagreplacementparts.com+2parts.alliancelaundry.com+2
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🌡️ Precise temperature control — this thermostat typically cuts off around 153° F, and resets when temperature drops by approx. 15° F. partselect.com+1
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🔧 DIY-friendly installation — direct-fit replacement with standard terminals, saving service costs.
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🧺 Improves dryer efficiency & safety — by preventing overheating and irregular heat cycles.
⚠️ Common Symptoms
If your dryer is showing any of the following, the WP503979 may be the part to replace:
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Dryer runs too hot or overheats. fix.com
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Dryer takes much longer than usual to dry clothes.
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Dryer heats, cools, then heats again in erratic cycles.
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Internal components show signs of heat stress or frequent thermal-fuse blowouts.
🔧 Compatible Model List
Fits a wide range of dryers from brands such as Whirlpool, Maytag, Amana, Crosley.
Common compatible models include (but are not limited to):
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Maytag: SDE2606AYW, SDE3606AYQ, SDE3606AYW, SDE4000AYW, SDG4606DAWW parts.alliancelaundry.com
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Amana / Whirlpool: various drum-type models using the same control board and thermostat system.
🔁 Cross Reference
Replaces and supersedes the following part numbers:
503979, WP503979, 14218933, 5-3979, AP6009612 (and others) maytagreplacementparts.com+1
🧩 Compatibility Notes
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Always verify your dryer’s model number (found on the door frame or rear panel) to ensure fit.
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This part is typically located on the heater housing or near blower housing in many models.
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If the thermostat is failing, also inspect your thermal fuse or high-limit thermostat, since repeated overheating may have damaged them too.
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Routine maintenance: clean lint filter and exhaust vent to maintain airflow and avoid overheating conditions that shorten thermostat life.