W11122876 - Genuine OEM Whirlpool Refrigerator Mullion Rail

W11122876 – Genuine OEM Whirlpool Refrigerator Mullion Rail

The W11122876 Genuine OEM Whirlpool Refrigerator Mullion Rail is an original Whirlpool replacement component designed for select Whirlpool refrigerators. This part is identified by the manufacturer as a “Rail-Mulln” and is also sold as a refrigerator mullion heater assembly. It helps provide the proper door-sealing interface between refrigerator doors and can help prevent frost and moisture buildup around the door area.

Appliance Kingdom supplies genuine OEM appliance parts to homeowners, landlords, property managers, and professional appliance technicians across Canada. The W11122876 is available for Canadian customers with Canada-wide shipping. Before ordering, always verify the refrigerator model number to confirm compatibility.

Function & Importance of the Mullion Rail

The mullion rail is positioned between the doors of compatible French-door refrigerator configurations. It helps bridge the space between the doors when they are closed and forms part of the refrigerator's door-sealing system.

The W11122876 also incorporates a mullion heating function. The heater helps reduce frost and moisture accumulation around the door-mullion area, supporting proper door operation and sealing.

Using the correct OEM component is important because the mullion assembly must align correctly with the refrigerator doors and work properly with the appliance's electrical and sealing systems. An incorrect or poorly fitting replacement can contribute to door alignment, sealing, frost, or moisture problems.

Common Symptoms Indicating Replacement

A damaged or defective W11122876 mullion assembly may be associated with:

• Frost or ice buildup around the refrigerator door area
• Excess moisture or condensation around the door
• Refrigerator doors that do not close properly
• Door alignment problems
• A damaged or misaligned mullion rail
• The mullion assembly interfering with normal door operation
• Loss of proper sealing between the refrigerator doors

RepairClinic specifically identifies frost buildup, moisture buildup, door-opening or closing problems, and door misalignment among issues associated with this component.

Will Replacing This Part Fix My Refrigerator Problem?

If inspection confirms that the mullion rail or its integrated heating assembly is damaged or defective, replacing it with the correct W11122876 OEM part can resolve problems caused by that component.

However, similar symptoms can sometimes originate from door alignment, hinges, seals, wiring, temperature conditions, or other refrigerator components. Proper diagnosis and model verification are recommended before ordering.

Compatibility Guidance

The W11122876 is intended for compatible refrigerator applications, including select Whirlpool and KitchenAid models. Approved parts sources identify the component for refrigerator use and advise customers to verify the appliance model before purchase.

To confirm compatibility:

1. Locate the model number on your refrigerator.
2. Compare the complete model number with the part's compatibility information.
3. Confirm that W11122876 is specified for your appliance.
4. Contact Appliance Kingdom if you need help verifying the part before ordering.

Do not rely on the refrigerator brand alone when ordering an appliance replacement part.

Replaces Part Number

The W11122876 replaces the following verified part number:

• W10733652

This supersession is confirmed by Whirlpool's parts network, Reliable Parts, RepairClinic, and PartSelect.

Key Features & Benefits

• Genuine OEM Whirlpool replacement part
• Manufacturer part number W11122876
• Designed for compatible Whirlpool refrigerator applications
• Also used in select KitchenAid refrigerator applications
• Combines mullion rail and heating functionality
• Helps reduce frost and moisture around the refrigerator door area
• Supports proper door operation and sealing
• Engineered to meet manufacturer specifications
• Provides reliable OEM fit and performance
• Suitable for homeowners, landlords, property managers, and professional appliance technicians

Installation Overview

Replacing a refrigerator mullion rail can require removing or accessing the existing mullion assembly and, depending on the refrigerator design, disconnecting electrical connections associated with the mullion heater.

The repair may be suitable for an experienced DIYer who is comfortable working on refrigerator components. Always disconnect the refrigerator from electrical power before servicing.

Because the W11122876 includes a heating function and electrical connections, professional installation is recommended if you are unfamiliar with appliance electrical repairs or are uncertain about the installation procedure.

Canada-Wide Availability & Canadian Supplier Support

Appliance Kingdom is a Canadian appliance-parts supplier serving customers across Canada. The W11122876 is supplied as a genuine OEM Whirlpool replacement component, giving Canadian homeowners and appliance professionals access to manufacturer-quality parts without relying on unverified aftermarket alternatives.

Whether you are repairing your own refrigerator, maintaining rental properties, or completing service calls for customers, Appliance Kingdom provides appliance parts and compatibility support for customers nationwide.

Buyer Confidence & Quality Assurance

Choosing the correct OEM mullion assembly gives you confidence that the replacement is designed for the intended appliance application.

With W11122876, you get:

• Genuine Whirlpool OEM quality
• Verified part-number supersession information
• Manufacturer-designed fit and function
• Support for compatible refrigerator applications
• Canadian supplier support
• Assistance with compatibility verification before purchase

If you are unsure whether W11122876 is the correct replacement for your refrigerator, provide Appliance Kingdom with the complete model number before ordering.