XPARTCO 691366 Dryer Idler Pulley Assembly Replaces WP691366
The XPARTCO 691366 is an aftermarket replacement dryer idler pulley assembly compatible with a wide range of Whirlpool-family dryers — particularly models with the lint filter on top — including Whirlpool, Kenmore, Maytag, Amana, KitchenAid, Roper, Crosley, Estate, Inglis, Admiral, Magic Chef, and Norge. The idler pulley assembly is a spring-tensioned arm and wheel that presses against the drum drive belt to maintain correct belt tension as it wraps around the drum and motor pulley. Without proper tension, the belt slips off the motor pulley, causing the drum to stop spinning. A worn idler pulley bearing also causes squealing, squeaking, or thumping noises during operation.
This is a complete idler arm and pulley assembly — it includes both the spring arm and the wheel, and mounts directly to the existing bracket in the dryer. Overall dimensions are 6"L x 1-5/8"W x 3-7/8"H with a 1-7/8" diameter pulley wheel. It replaces older Teflon friction-style idler pulleys and provides a smoother, longer-lasting ball-bearing wheel. It directly replaces WP691366, 691366, 239477, 337116, 337407, 3394332, 347034, 347226, 4319391, 688166, W10612905, AP6010582, PS11743765, and over 20 additional cross-reference numbers. Often replaced together with the drum belt (341241) and drum support rollers (349241T) as the 4392065 maintenance kit. Installs in 30–45 minutes with basic hand tools.
Quick Answer
The XPARTCO 691366 Dryer Idler Pulley Assembly fixes Whirlpool-family dryers that are squealing, thumping, or where the drum stops spinning because the belt has lost tension. Complete arm and pulley assembly. 6"L x 1-5/8"W x 3-7/8"H overall, 1-7/8" pulley diameter. Replaces older Teflon friction pulleys with ball-bearing wheel. Compatible with Whirlpool, Kenmore, Maytag, Amana, KitchenAid, Roper, and more. Replaces WP691366, 239477, 337116, 3394332, 347034, AP6010582, PS11743765. Often replaced with 341241 belt and 349241T rollers.
Common Problems This Part Fixes
Drum not spinning — belt has lost tension and slipped off the motor pulley
Loud squealing or squeaking noise during the drying cycle — worn idler pulley bearing
Thumping or clunking noise as the pulley wheel wobbles on a worn bearing
Belt repeatedly slipping or falling off after being reinstalled
Grinding noise from the idler pulley area — bearing fully failed
Dryer drum spinning intermittently due to inconsistent belt tension
Idler pulley arm visibly cracked, broken, or wheel no longer spinning freely
Replaces Part Numbers
This idler pulley assembly directly replaces the following OEM and cross-reference part numbers:
WP691366, 691366, 239477, 26000691366, 337116, 337407, 337510, 3388345, 338946, 3394332, 347034, 347226, 347277, 4319391, 688166, 691366BULK, 8207, 99989677, DE412, K35-163, W10612905, WP691366VP, AWP48059, EAP11743765, AP6010582, PD00002256, PS11743765.
If your part number is not listed above, contact our support team before ordering and we will verify compatibility.
Compatibility
This idler pulley assembly is compatible with select gas and electric dryers from the following brands — particularly models with the lint filter on top:
Whirlpool dryers (gas and electric — WED, WGD, LE, LG, and related series with top lint filter)
Kenmore / Sears dryers (Whirlpool-built models)
Maytag dryers (gas and electric)
Amana dryers
KitchenAid dryers
Roper dryers
Crosley dryers
Estate dryers
Inglis dryers
Admiral dryers
Magic Chef dryers
Norge dryers
Note: The 691366 idler pulley is for older Whirlpool-family dryers with the lint filter on top. Newer Whirlpool dryers with the lint screen inside the door use the W10837240 idler pulley arm assembly instead. Always verify your model number before ordering.
Key Features
Complete idler arm and pulley assembly — includes both the spring-tensioned arm and the pulley wheel
Maintains correct drive belt tension so the belt grips the drum and motor pulley without slipping
Redesigned ball-bearing pulley wheel replaces older Teflon friction-style pulleys for longer service life and quieter operation
Overall dimensions: 6"L x 1-5/8"W x 3-7/8"H; pulley wheel diameter: 1-7/8"
Plastic arm with metal shaft and ball-bearing pulley wheel
Replaces WP691366, 239477, 337116, 3394332, 347034, AP6010582, and over 30 additional cross-reference numbers
Compatible with 12 major appliance brands on the Whirlpool top-lint-filter platform
Often replaced together with the drum belt (341241) and drum rollers (349241T) — all three included in the 4392065 maintenance kit
Aftermarket replacement built to OEM-equivalent quality standards
DIY repair — installs in 30–45 minutes with basic hand tools
Product Specifications
Part Number
691366
OEM Part Number
WP691366
Part Type
Dryer Idler Pulley Assembly (Arm and Wheel)
Condition
Aftermarket Replacement
Application
Gas and Electric Dryers (lint filter on top models)
Overall Dimensions
6"L x 1-5/8"W x 3-7/8"H
Pulley Wheel Diameter
1-7/8 inches
Material
Plastic arm / Metal shaft / Ball-bearing pulley wheel
Color
Black / White
Includes
Complete idler arm and pulley assembly
Often Replaced With
341241 Drum Belt, 349241T Drum Rollers (4392065 kit)
Compatible Brands
Whirlpool, Kenmore, Maytag, Amana, KitchenAid, Roper, Crosley, Estate, Inglis, Admiral, Magic Chef, Norge
Installation Notes
⚠️ Unplug Dryer Before Starting Disconnect power (and shut off gas for gas dryers) before beginning. Remove the lint screen and unscrew the screws inside the lint screen housing. Use a putty knife to release the top panel spring clips and lift the top panel. Remove the front panel to fully access the drum drive components. Release belt tension by pushing the idler pulley arm toward the motor and sliding the belt off. Note how the belt is routed before removing — take a photo. Unclip or unscrew the old idler pulley assembly from its mounting bracket. Install the new 691366 idler pulley in the same position. Re-route the belt around the drum (ribbed side in), under the idler pulley, and around the motor pulley, then release the idler arm to create tension. Reassemble the front and top panels, restore power, and run a test cycle. Tip: while the dryer is open, inspect and replace the drum belt (341241) and drum support rollers (349241T) if worn. Tools needed: Phillips screwdriver, 1/4" or 5/16" nut driver, putty knife.
Frequently Asked Questions
What does the idler pulley do?
The idler pulley is a spring-loaded arm and wheel assembly that presses against the drive belt between the drum and the motor pulley, keeping the belt under constant tension. This tension is what allows the belt to grip both the drum and the motor pulley without slipping as the motor spins. Without proper tension — or with a pulley bearing that has failed — the belt slips, the drum stops spinning, and the dryer produces heat but does not tumble clothes. A worn bearing also creates the high-pitched squealing sound that is the most common sign of idler pulley failure.
What is the difference between 691366 and WP691366?
These are the same idler pulley assembly. WP691366 is the updated Whirlpool OEM part number that superseded the original 691366. The W10612905 is also a cross-reference for the same assembly. This aftermarket replacement is compatible with all three numbers.
What is the difference between 691366 and W10837240?
Both are Whirlpool dryer idler pulley assemblies, but for different dryer generations. The 691366 (WP691366) is used on older Whirlpool-family dryers with the lint filter on top of the dryer. The W10837240 is a larger, redesigned idler arm and bracket assembly used on newer Whirlpool-family dryers with the lint screen inside the door. They are not interchangeable. Always verify your model number to confirm which idler pulley is correct for your dryer.
Should I also replace the belt and drum rollers at the same time?
Yes — since the dryer must be disassembled to replace the idler pulley, this is the ideal time to also inspect and replace the drum belt (341241) and rear drum support rollers (349241T). All three parts are part of the same drum drive system and wear at similar rates. The 4392065 maintenance kit includes all three together and is the recommended approach for a complete drum drive repair — one teardown covers everything.
Is this an OEM or aftermarket part?
This is an aftermarket replacement part built to OEM-equivalent quality standards. It is not a genuine Whirlpool OEM part, but is manufactured from durable plastic and metal with a ball-bearing pulley wheel to match the dimensions and performance of the original WP691366 idler pulley assembly.
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