2 Pack - 12638000004021 Genuine OEM Midea Dryer Drum Roller
The 12638000004021 is a genuine Midea OEM dryer drum support roller, sold under the Frigidaire/Midea manufacturing relationship for Midea-built dryers and select Frigidaire, Insignia, and Kenmore dryers using this same platform. This roller sits underneath the drum, along its rear support track, and does the physical work of holding the drum's weight while letting it turn freely as the belt drives it around. A dryer typically uses more than one of these rollers working together to keep the drum properly supported and centered.
Over time, the wheel and bearing inside the roller wear down from the constant heat and rotation the dryer subjects them to, eventually developing a flat spot, seizing up, or simply wearing thin enough that the drum sits unevenly. A worn roller produces a distinctive symptom: a rumbling, squeaking, or thumping noise that rises and falls with drum rotation, often getting louder as a load tumbles. It directly replaces 5304511415, AP7990985.
Quick Answer
The 12638000004021 Genuine OEM Midea Dryer Drum Roller fixes Midea-built dryers (and select Frigidaire, Insignia, and Kenmore dryers on this platform) with a rumbling, squeaking, or thumping noise that rises and falls with drum rotation. Supports and centers the drum on its rear track. Replaces 5304511415, AP7990985.
Common Problems This Part Fixes
- Rumbling or grinding noise that rises and falls with drum rotation
- Squeaking or squealing noise from inside the dryer during operation
- Thumping or knocking noise, especially with a heavier load
- Noise that gets louder over time as the roller wears further
- Drum that sits unevenly or wobbles slightly when turned by hand
- Visible flat spot, cracking, or wear on the roller wheel
- Noise that continues even with an empty drum tumbling
Cross Reference Information
Part numbers can change over a product's lifecycle as manufacturers update designs or release new appliance models. For your convenience, we've included any known superseded, alternate, or cross-reference part numbers that match this item.
Replaces Part Numbers
This dryer drum roller directly replaces the following OEM and cross-reference part numbers:
12638000004021, AP7990985, PS18170578, 5304511415, 4056012471, AP8049485, PS17993389.
If your part number is not listed above, contact our support team before ordering and we will verify compatibility.
Compatibility
This drum roller is compatible with select Midea-built dryers, and also fits select Frigidaire, Insignia, and select Kenmore dryers built on the same Midea platform.
Note: Always verify your full model number before ordering, since Midea and its partner brands use several different roller designs across their dryer lineup. Contact our support team with your model number if you're unsure.
Key Features
- Genuine Midea OEM part — factory-specified wheel and bearing design
- Supports the drum along its rear track, allowing smooth rotation as the belt drives it
- Resolves "rumbling," "squeaking," and "thumping" noise symptoms caused by roller wear
- Direct drop-in replacement for the original roller and axle assembly
- Replaces 5304511415, AP7990985.
- Compatible with Midea, Frigidaire, Insignia, and select Kenmore dryers
- Genuine OEM replacement — guaranteed fit, materials, and performance
Product Specifications
| Part Number |
12638000004021 |
| Part Type |
Dryer Drum Support Roller |
| Condition |
Genuine OEM |
| Brand |
Midea |
| Location |
Rear drum support track |
| Function |
Supports and centers the drum during rotation |
| Quantity |
1 roller |
| Compatible Brands |
Midea, Frigidaire, Insignia, Kenmore |
Installation Notes
⚠️ Unplug Dryer Before Starting Disconnect power at the outlet or shut off the circuit breaker before beginning. On a gas model, also close the gas shutoff valve before moving the cabinet. Wear work gloves — sheet metal edges inside the cabinet are sharp. Access is typically through the rear panel: remove the screws securing the panel, then release the drum belt from the idler pulley to relieve tension so the drum can be supported and moved slightly for access to the rollers underneath. Photograph the roller and axle positions before removing anything. Remove the retaining clip or fastener holding the worn roller's axle in place, then slide the old roller off. Install the new 12638000004021 roller onto the axle in the same orientation, and secure it with the retaining clip or fastener. While you're in there, check the other rollers by spinning each one by hand — if any feel stiff, gritty, or worn, replace them at the same time, since they're typically the same age and wear on a similar schedule. Re-tension the belt around the idler pulley, reassemble the rear panel, restore power, and run a short empty cycle to confirm the noise has resolved. Tools needed: Phillips screwdriver, nut driver, pliers, work gloves.
Frequently Asked Questions
My dryer makes a rumbling noise that gets louder over time. Is this the part I need?
Yes, this is the classic symptom of a worn drum roller. As the wheel and bearing wear down, the noise typically starts subtle and gradually worsens, often becoming most noticeable with a full load as the extra weight puts more load on the worn wheel. If the noise rises and falls in rhythm with the drum turning, a roller is the most likely cause.
Should I replace just one roller, or all of them?
It's worth checking all of them while you have access. Dryers typically use more than one roller supporting the drum, and since they're the same age and under the same stress, if one has worn out the others are often not far behind. Spin each roller by hand — if any feel stiff, gritty, or rough, replace them together to avoid repeating this repair again soon.
Is this an OEM or aftermarket part?
This is a genuine OEM part, manufactured by Midea to factory specifications — guaranteed fit, materials, and performance. It matches the original wheel design, bearing, and axle fitment of the drum roller originally installed in your dryer.
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