Whirlpool Refrigerator Flipper Mullion Assembly / Mullion Heater, White WPW10624451, Replaces W10434693, W10448918

Is This the Right Part?

✅ Cross Reference Information

W10434693, W10448918

Common Symptoms

• Center door gap remains open or leaks room air.
• Visible moisture or condensation develops around the mullion or center door seal.
• The flipper/mullion is cracked, loose, misaligned, or interferes with door closing.
• The mullion heater does not warm during an authorized service test, potentially allowing moisture accumulation.

Check Before Replacing

• With refrigerator power disconnected, inspect the white mullion for cracks, warping, looseness, or visible damage.
• Close the doors slowly and check whether the flipper moves into position and contacts the opposing door evenly.
• Inspect the center seal area for gaps, pinching, condensation, or frost that could indicate poor sealing.
• Confirm the refrigerator is level and the doors are aligned before attributing the problem to the mullion assembly.
• If the appliance service documentation provides a mullion-heater test, follow that model-specific procedure; do not probe energized wiring unless qualified to do so.

Pro Tip

Part Details

Installation Notes

• Disconnect refrigerator power before installation.
• Verify the replacement part against the appliance model and the existing mullion before beginning.
• The assembly is removed from the refrigerator door area and has an electrical connector; disconnect and reconnect it only with power removed.
• Handle the long plastic assembly carefully to avoid bending or damaging the flipper.
• Follow the appliance-specific service documentation for the exact fastener and removal sequence.

✅ Cross Reference Information

W10434693, W10448918

Verified Compatible Models

10673002510, 10673002511, 10673003510, 10673003511, 10673009510, 10673009511, 10679402410, 10679472410, 10679472411, 10679473410, 10679473411, 59673002510, 59673003510, 59673003511, 59673009510

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