See part 18 in the diagram
Interlock Assembly
The W11443129 is a interlock assembly for Whirlpool microwave. Basic tools needed. Compare prices from top sellers.
Replaces: W11439341
Moderate Repair
Fits Whirlpool appliances
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4 stores · Updated May 16, 2026
Lowest$15.35
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$18.00
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Common Problems This Part Fixes
Won't start
Trips breaker or blows fuse
Repair difficulty: Moderate - basic tools and 1-2 panels to remove
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