What causes an idler pulley to fail?

Idler pulleys typically fail due to wear and tear on the bearing, leading to friction and eventual seizing or breakage. Excessive heat, lint buildup, or a misaligned drive belt can accelerate this wear.

Can I replace just the bearing in the idler pulley?

While some idler pulleys might allow for bearing replacement, it is generally recommended to replace the entire pulley assembly. This ensures optimal performance and reliability, as the plastic wheel itself can also wear down over time.

Is an idler pulley the same as a tension pulley?

Yes, an idler pulley is often also referred to as a tension pulley. Its primary function is to provide tension to the drive belt, guiding it and ensuring it stays securely in place to turn the dryer drum.

Dryer Idler Pulley Replacement Guide

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What the 4392065 does

The idler pulley maintains tension on the drive belt, allowing it to turn the dryer drum. It ensures smooth rotation and proper operation of the drum.

Symptoms when this part fails

Squealing or grinding noises during operation
Dryer drum not spinning
Dryer taking too long to dry clothes
Burning smell from the dryer

Compatibility

Fits the Kenmore family. Specifically:

Any unit originally equipped with OEM part number(s): WP691366, AP3131942, 587636, PS11743765, AP6010582, 20061033, 20064638.
Check the model/rating plate inside your appliance and compare it against the fitment table on the product listing before ordering — this guide does not list specific compatible models because Amazon does not provide verified fitment data through this pipeline.

Also replaces: WP691366, AP3131942, 587636, PS11743765, AP6010582, 20061033, 20064638

Tools you'll need

Screwdriver (Phillips and flathead)
Nut driver or socket set
Pliers
Work gloves

Difficulty: Moderate · Time: 45-90 minutes

How to install the 4392065, step by step

Disconnect dryer from power and gas (if applicable).
Remove the dryer's top panel and front panel.
Locate the idler pulley and drive belt assembly.
Relieve tension on the drive belt and remove it from the pulley.
Unbolt and remove the old idler pulley.
Install the new idler pulley and re-route the drive belt.
Reassemble the dryer panels and reconnect power.
Test dryer operation.