The Whirlpool 279640 idler pulley maintains proper tension on the dryer drive belt so the belt can rotate the drum smoothly.
Squealing, belt slippage, or a drum that will not turn can also involve the drive belt, motor, drum rollers, bearings, or foreign objects. Inspect the complete drive system.
Manufacturer Part Numbers / Cross-References: 279640, W10468057, 697692, 3388672
What This Listing Includes: One Whirlpool 279640 dryer idler pulley.
Possible Compatible Models Include: WED8300SW0 and additional Whirlpool-built dryers that specify 279640
Compatibility Note: 279640 fits select Whirlpool-built dryers and replaces W10468057, 697692 and 3388672 in applicable models. Verify complete dryer model.
Important Safety Note: Disconnect dryer power and shut off gas on gas models before cabinet service. Support the drum as needed when releasing belt tension.
Installation Note: Route the belt according to the model diagram, verify the pulley rotates freely, maintain correct belt orientation, and confirm smooth drum rotation before reassembly.