Magnetron
The W11578959 is a magnetron for Whirlpool microwave and oven. Basic tools needed. Compare prices from top sellers.
Replaces: W11504545
Moderate Repair
Fits 3 brands
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5 stores · Updated May 19, 2026
Lowest$68.29
4.8(728)In Stock
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$72.54
4.6(3.6k)In Stock
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$84.95
4.8(21.9k)In Stock
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$85.12
4.5(13.6k)In Stock
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$112.18
4.4(3.1k)Preorder
Go to StoreThis is a genuine OEM item made by Comfort Aire. NOTE: When ordering parts from the website, please verify your part number is correct for your model before ordering. Parts may look the same but the size and shape can have small variations.
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Common Problems This Part Fixes
Not heating
Trips breaker or blows fuse
Repair difficulty: Moderate - basic tools and 1-2 panels to remove
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