Whirlpool Pizza Stone - 4378577

Whirlpool Pizza Stone - 4378577

Restore proper cooking-surface support with this genuine OEM Whirlpool Pizza Stone - 4378577. This cooking tray or stone supports food during baking, warming, or browning in the compatible appliance.

4378577 is a cooking-surface accessory or replacement used when the original tray or stone cracks, stains heavily, or no longer supports the intended cooking application.

Compatibility: Compatible with select Whirlpool appliance models that use this part number.

Please confirm fitment with your appliance model number before ordering.

Is it time to replace?

• Common Symptoms: Missing cooking tray, broken stone, or food that no longer has the correct supported surface during use.
• Visible/Sensory Cues: Cracks, chips, warped surfaces, or heavy wear that affects safe or even cooking use.

Pro Tip: Compare the tray size, shape, and notches or supports before ordering. Cooking trays and stones are model-specific even when they look similar.

Technical Specifications

Legacy part number(s)/code(s): W10834186, 4319145, B003DA62SS

Please note: These legacy parts have been replaced by this item. They may not look exactly the same, but the manufacturer of these appliances has assured us that they will function properly.

If you have questions, please message us before ordering so we can address your concerns. Please review our Return Policy before purchasing.