Whirlpool Refrigerator RAIL-MULLN W10806457, Replaces W10407225, W10407254, W10654762, W10698199

Is This the Right Part?

✅ Cross Reference Information

Common Symptoms

• Mullion flap does not heat or has no electrical continuity.
• French-refrigerator doors do not close or seal properly.
• Frost or moisture accumulates on or around the mullion flap.
• The mullion flap is visibly damaged, misaligned, or obstructs door closure.
• The refrigerator doors appear misaligned at the center seal.

Check Before Replacing

• With the refrigerator unplugged, visually inspect the mullion flap for cracks, warping, loose mounting, or interference with door closure.
• Check whether the flap moves into its sealing position as the French doors close; do not force it if it binds.
• Inspect the center seal area for frost or moisture and check whether the flap is forming a continuous seal.
• If qualified to perform electrical testing, check the heater for continuity with power disconnected; lack of continuity indicates a heater-circuit problem but does not by itself prove the assembly is the only cause.
• Before condemning the assembly, inspect nearby door supports, guides, and gaskets for damage or misalignment.

Pro Tip

Part Details

Installation Notes

• Disconnect the refrigerator from electrical power before removal or installation.
• The assembly is mounted on the refrigerator door liner and connects through a wire harness.
• During installation, ensure the wire connector is fully secured and retained as designed before positioning the assembly.
• Align the upper and lower hinge features and center hinge tabs with the door-liner mounting points, then slide the mullion into position.
• Reinstall and secure the center mounting screw, then restore power and verify that the flap moves freely and the doors close and seal without interference.

Verified Compatible Models

7MF2976AEM00, 7MF2976AEM01, 7MF2976AEM02, 7MF2976AEM03, 7WF736SDAM10, 7WF736SDAM11, 7WF736SDAM12, 7WF736SDAM13, 7WF736SDAM14, IX7DDEXDSM00, IX7DDEXDSM01, IX7DDEXDSM02, KFIS29BBBL00, KFIS29BBBL01, KFIS29BBBL02, KFIS29BBBL03, KFIS29BBMS00, KFIS29BBMS01, KFIS29BBMS02, KFIS29BBMS03, KFIS29BBWH00, KFIS29BBWH01, KFIS29BBWH02, KFIS29BBWH03, KFIS29PBMS00, KFIS29PBMS01, KFIS29PBMS02, KFIS29PBMS03, KRFF507EBL00, KRFF507EBL01, KRFF507EWH00, KRFF507HBS04, KRFF507HPS04, MFT2574DEM00, MFT2574DEM02, MFT2673BEM10, MFT2673BEM11, MFT2673BEW12, MFT2776DEH02, MFT2776FEZ00, MFT2778EEZ00, WRF736SDAB11, WRF736SDAB12, WRF736SDAW12, WRF757SDHZ02, WRF767SDHZ00, WRF989SDAB02, WRF989SDAB03, WRF989SDAH03, WRF990SLAM00, WRF736SDAM11, WRF736SDAM12, WRF736SDAM13, WRF736SDAM14

Fitment reminder: Match the complete appliance model number, including suffix or revision where applicable, before ordering.