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The FRIGIDAIRE 5304440845 is a genuine OEM microwave waveguide cover designed to protect the waveguide channel inside the microwave cavity. It acts as a barrier that prevents food particles and moisture from entering the waveguide while allowing microwave energy to pass through evenly for consistent cooking performance. This part is installed directly inside the microwave cavity and is a critical component for maintaining safe, efficient operation. Appliance technicians and experienced DIYers replace this cover when it shows signs of burning, arcing, or physical damage.
This waveguide cover is suited for use in residential microwave units, range and stove combinations with integrated microwave functions, and oven-microwave combo appliances. It fits Frigidaire and Kenmore branded units and is a direct OEM replacement, making it a straightforward swap for a failed or damaged cover. Its correct installation restores proper microwave energy distribution and prevents further damage to internal components.
Fits Frigidaire and Kenmore microwave, range, and oven-microwave combo appliances. Consult your unit's model number against the OEM parts list to confirm fitment before installation.
Always unplug the microwave or disconnect power at the breaker before servicing any internal components. The waveguide cover typically seats into a slot or clips into the interior cavity wall - no special tools are required for most models. Inspect the cavity for signs of arcing or charring before installing the replacement cover, and clean the cavity thoroughly to remove debris. Do not operate the microwave without the waveguide cover in place.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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