High-limit thermostat
Controls the heat. A dryer that runs too hot or won't heat points here.
Drive belt
Replaces 3387610
Turns the drum. If the motor hums and the drum stays still, check the belt first.
Idler pulley
Replaces 3388672
Thumping or squealing during a cycle points to worn rollers, pulleys or bearings.
Drum seal
Replaces 697694
A worn drum seal lets lint and hot air escape and can squeak as the drum turns.
Blower wheel
Moves air through the drum. Long drying times and rattling point here.
1ThermostatWP3390291
2Drive belt661570V
3Idler pulley279640
4Drum seal280114Part numbers come from the Sears PartsDirect parts list for the Whirlpool 3RAWZ481ETH0 (view the list), checked November 15, 2026. Amazon buttons open a search for the part number; we may earn a commission.
Where the model number is
Inside the door opening, on the frame or the back of the door. Older models: on the back panel near the cord.