{"product_id":"exact-replacement-parts-4387503-defrost-thermostat","title":"Exact Replacement Parts 4387503 Defrost Thermostat","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe EXACT REPLACEMENT PARTS 4387503 is a defrost thermostat designed to monitor and regulate the defrost cycle in refrigeration equipment. Rated at L62-14C, this thermostat senses evaporator coil temperature and signals the defrost heater circuit to terminate the defrost cycle when the correct temperature is reached, preventing overheating and ice buildup issues. It features a 3\/8-inch side push-on clip for secure mounting and 6-inch leads with stripped wire ends for straightforward field connection. Licensed appliance technicians and refrigeration service pros typically handle this repair.\u003c\/p\u003e\n\u003cp\u003eThis defrost thermostat is a direct replacement for the original Whirlpool 4387503, commonly found in residential refrigerators and freezers that use an automatic defrost system. It fits applications where the original thermostat has failed, causing excessive frost accumulation, a unit that runs continuously without defrosting, or a defrost cycle that does not terminate properly. Cross-reference part numbers include 4387503, ER4387503, and WP4387503, making it straightforward to verify fitment against the original part tag.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eL62-14C temperature rating for precise defrost cycle termination\u003c\/li\u003e\n  \u003cli\u003e3\/8-inch side push-on clip mount for secure, tool-free attachment to the evaporator\u003c\/li\u003e\n  \u003cli\u003e6-inch leads with stripped wire ends for fast, clean field connections\u003c\/li\u003e\n  \u003cli\u003eDirect OEM-style replacement for Whirlpool original part 4387503\u003c\/li\u003e\n  \u003cli\u003eCross-references ER4387503 and WP4387503 for easy part verification\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDirect replacement for Whirlpool part numbers 4387503, WP4387503, and ER4387503. Verify the original part number on the appliance label or existing thermostat before ordering to confirm fitment.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by a qualified appliance or refrigeration technician. Disconnect power to the refrigerator or freezer at the outlet or breaker before accessing the evaporator compartment. The defrost thermostat clips onto the evaporator tubing using the push-on clip and connects in-line with the defrost heater circuit. Do not apply heat or bend the thermostat body during installation, as this can alter the calibrated response temperature.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTemperature Rating\u003c\/strong\u003e: L62-14C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLead Length\u003c\/strong\u003e: 6 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLead Termination\u003c\/strong\u003e: Stripped wire ends\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMounting Style\u003c\/strong\u003e: 3\/8-inch side push-on clip\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: EXACT REPLACEMENT PARTS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 4387503\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"EXACT REPLACEMENT PARTS","offers":[{"title":"Default Title","offer_id":51619442884914,"sku":"4387503","price":17.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/c504f2aa155ac6f760a62aec7ce14d5e.webp?v=1787330051","url":"https:\/\/voomisupply.com\/products\/exact-replacement-parts-4387503-defrost-thermostat","provider":"Voomi Supply","version":"1.0","type":"link"}