Description
🧾 Description
Protect your cabinetry and maintain your dishwasher’s integrity with this genuine OEM Moisture Barrier Kit (Part 4396277) from Whirlpool. This kit installs under the countertop above built-in dishwashers and helps prevent moisture damage to surrounding woodwork and cabinetry.
⚠️ Please check with your maintenance technician prior to ordering to confirm compatibility with your specific appliance installation and mounting configuration. ({CITATION_START}cite{CITATION_DELIMITER}turn0search6{CITATION_STOP})
⚙️ Features & Benefits
Features:
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OEM part number 4396277. ({CITATION_START}cite{CITATION_DELIMITER}turn0search5{CITATION_STOP})
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Designed for use with built-in dishwashers, attaches beneath the countertop above the dishwasher door. ({CITATION_START}cite{CITATION_DELIMITER}turn0search8{CITATION_STOP})
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Manufactured by Whirlpool/related brands for compatibility with several major appliance models. ({CITATION_START}cite{CITATION_DELIMITER}turn0search7{CITATION_STOP})
Benefits:
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Prevents cabinetry damage: Shields woodwork from moisture intrusion that can cause swelling, warping or staining.
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Extends appliance installation life: Ensures the space around your dishwasher remains dry and structurally sound.
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OEM reliability: With the original manufacturer part you can trust the fit and performance.
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Cost-effective solution: A simple-to-install barrier can avoid much larger repair costs to cabinetry or water-damage remediation.
🔍 Common Symptoms That Indicate Replacement Needed
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Signs of water damage, mildew or warping in the cabinet area above or around the dishwasher door.
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Moisture or condensation accumulating between the dishwasher and surrounding cabinetry.
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The existing barrier tape or material is peeling, torn, missing or degraded.
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The space under the countertop shows visible rust or deterioration from long-term exposure to moisture.
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Installation guidelines for your appliance recommend use of a moisture barrier or call out part 4396277.
🧩 Compatibility Notes
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This barrier kit is intended for built-in dishwashers which require a moisture barrier beneath the countertop as part of proper installation. ({CITATION_START}cite{CITATION_DELIMITER}turn0search1{CITATION_STOP})
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Confirm your model number of the dishwasher and verify it lists part 4396277 or its equivalent in the installation/accessory parts list.
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Make sure the countertop material, clearance, and installation space match OEM recommendations; some situations may need custom sizing or adapt-kit.
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If you already have significant water damage or compromised cabinetry, replacing the barrier alone may not fully resolve the underlying issue — consider cabinet repair or technician inspection.
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Installation is DIY friendly for many users, but if your dishwasher installation is awkward or the cabinetry is damaged, consulting your maintenance technician is advised.