Description
Description
Ensure reliable compressor startup and protect your refrigerator’s cooling system with the genuine OEM relay & overload kit part 4387535 from Whirlpool. This kit combines a start relay and an overload protector, both of which mount to the side of the compressor and help it begin running properly. Because many refrigerators share similar components but different configurations, please check with your maintenance technician to confirm that part 4387535 is the correct fit for your full model number and that the start device is indeed the root issue. partselect.com+2whirlpoolparts.com+2
Features & Benefits
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OEM-specified component: Built to Whirlpool’s original specifications for fit, reliability and longevity. whirlpoolparts.com
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Includes both start relay and overload protector: This combo helps ensure the compressor both gets a strong start and is safeguarded against thermal overload. partselect.com
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Ideal for troubleshooting compressor-starting issues: If your refrigerator hums, clicks repeatedly, or fails to cool despite fans and other parts working, this kit often resolves the problem. Reliable Parts
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Cost-effective repair: Replacing this start device is far less expensive than replacing the compressor or entire sealed system.
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Straightforward installation (when compatibility is confirmed): Technicians or experienced DIYers can mount the kit onto the compressor, reconnect wires as per old part, and restore function.
Common Symptoms That Indicate Replacement
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The compressor tries to run (you hear clicking or humming) but fails to start or quickly shuts down. partselect.com+1
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Refrigerator and freezer are not cooling, yet other components (fans, lights) appear to function normally.
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The compressor gets excessively hot or you observe frequent cycling or overheating of the compressor area.
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You’ve removed the back panel, observed the old relay has burn marks or the overload protector looks damaged.
If these symptoms appear, advise the maintenance technician to confirm that the start device (relay & overload) is the fault—not the compressor itself—before ordering this part.
Compatible (Partial) Model Notes
This kit is compatible with many Whirlpool, Kenmore, KitchenAid, Amana and Inglis refrigerators that use the same compressor-start assembly. Example brands listed on parts databases include: Whirlpool, Kenmore, KitchenAid, Amana, Crosley, Inglis. ereplacementparts.com
NOTE: Because each refrigerator model may have slightly different compressor assemblies, always verify your model number, compressor part number and wiring before ordering.
Cross Reference
This part replaces or is equivalent to the following numbers according to parts listings:
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AP3108472 partselect.com
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586234 kitchenaidparts.com
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4387767 partselect.com
Compatibility Notes
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Matching the full refrigerator model number (including suffix) is essential — even if a start device looks identical, internal coil ratings or mounting tabs may differ.
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While replacing the start device often solves compressor-start issues, if the compressor is internally damaged, sealed system is leaking or other components (evaporator, fan) are at fault, the kit alone may not resolve all symptoms. Technician diagnosis is strongly recommended.
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Installation: Unplug refrigerator power, locate the compressor at the back of the appliance, remove old relay/overload, install new kit, ensure proper connections, restore power and monitor operation.
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After installation, allow the appliance to run for a full cycle and check that the compressor starts quietly, without clicking, and that both fridge and freezer compartments reach correct temperatures.