Refrigerator Defrost Thermostat and Sensors

47 products

  • Sale -38% 5303918202CM Refrigerator Defrost Thermostat Replaces 5303918202  Parts-O-Matic

    Choice Manufactured Parts 5303918202CM Refrigerator Defrost Thermostat Replaces 5303918202

    5303918202CM Refrigerator Defrost Thermostat L47-22F. 5/16" side push on clip. 4" & 6" leads with stripped wire ends. Description: This Defrost Thermostat is a replacement part for specific Frigidaire brand refrigerators and freezers. Defrost thermostats prevent the defrost heater from overheating, protecting the evaporator in the unit. Replaces Part Numbers:5303918202, 241619705, 833603, AH469510, AP2150133, EA469510, PS469510 This is an aftermarket part that can be used as a replacement for the OEM part. California Residents only WARNING: California’s Proposition 65 

    $20.00 $12.45

  • Sale -50%Last stock! XPARTCO 6615JB2005C Refrigerator Defrost Thermostat  Parts-O-Matic

    XPARTCO XPARTCO 6615JB2005C Refrigerator Defrost Thermostat

    ❄️ XPARTCO 6615JB2005C Refrigerator Defrost Thermostat Eliminate frost buildup and restore proper cooling cycles with this 6615JB2005C defrost thermostat. Designed to regulate defrost heater activation by monitoring evaporator coil temperature, this thermostat ensures efficient defrosting without overcooling — helping your LG or Kenmore refrigerator run reliably. ✅ Key Features: Aftermarket replacement for part #6615JB2005C Includes mounting bracket and wire leads for easy installation Compatible with many LG and Kenmore (LG-built) refrigerators Durable and affordable alternative to OEM 🔁 Replaces OEM Part Numbers: 6615JB2005C, 6615JB2005A, 6615JB2005V, AH3529338, EA3529338, AP4457170, PS3529338, 6615JB2005U, PD00053805, AP5973429, PS11706533 ⚠️ Common Symptoms Fixed: Frost buildup on freezer coils or inside the freezer Refrigerator not cooling properly Water leaking from freezer section Refrigerator runs constantly or inconsistently Error codes related to defrost system 🧰 Compatible With: ✔️ LG Refrigerators✔️ Kenmore (models starting with 795. – built by LG)✔️ Some Sears/Elite models 📌 Not sure if it fits your fridge? Send us your model number — we’ll confirm compatibility fast. 🚚 Why Buy from Parts-O-Matic? ✅ High-quality aftermarket performance ✅ Always Fast and Free U.S. shipping ✅ Affordable alternative to OEM parts ✅ Trusted by DIYers and appliance repair professionals 🛒 Fix defrost issues and keep your fridge frost-free — order the 6615JB2005C aftermarket thermostat today from Parts-O-Matic.com, and enjoy fast, free delivery.

    $26.20 $12.97

  • Sale -47% ERP WR50X10025 Refrigerator Defrost Thermostat Exact Replacement Parts

    Exact Replacement Parts ERP WR50X10025 Refrigerator Defrost Thermostat

    ERP WR50X10025 Refrigerator Defrost Thermostat 1/4" side push on clip. Has 12-1/4" orange lead wire, 16-1/2" yellow lead wire. Replaces Part Numbers: WR50X10025, AH303445, EA303445, AP3190397, PS303445.   This is an aftermarket part that can be used as a replacement for the OEM part.   California Residents only WARNING: Cancer and/or Reproductive Harm - www.p65warnings.ca.gov

    $26.50 $13.99

  • Sale -50% ERP WR50X10021 Refrigerator Defrost Thermostat Replaces WR50X10071 Exact Replacement Parts

    Exact Replacement Parts ERP WR50X10021 Refrigerator Defrost Thermostat Replaces WR50X10071

    ERP WR50X10021 Refrigerator Defrost Thermostat  L64-41F. 3/8" side push on clip. 15" leads with stripped wire ends. Replaces Part Numbers:  WR50X10071, WR50X10021, WR50X10076, WR50X22303, WR50X22304, WR50X30071, AH1155320, EA1155320, AP3884319, PS1155320.  This is an aftermarket part that can be used as a replacement for the OEM part. California Residents only WARNING: Cancer and/or Reproductive Harm - www.p65warnings.ca.gov

    $16.80 $8.35

  • Sale -40% ERP DA47-00095E Refrigerator Defrost Thermal Fuse Exact Replacement Parts

    Exact Replacement Parts ERP DA47-00095E Refrigerator Defrost Thermal Fuse

    ERP DA47-00095E Refrigerator Defrost Thermal Fuse Replaces Part Numbers: DA47-00095E, 1515210, AP4136048, DA47-00095A, DA47-00095B, DA47-00095D, DA47-00095E-, DA47-10115A, DA47-10115D, DA47-10148B, DA47-10148D, DA47-10148E, DA47-10148J, DA47-10148Q, PS4140330   This is an aftermarket part that can be used as a replacement for the OEM part. California Residents only WARNING: Cancer and/or Reproductive Harm - www.p65warnings.ca.gov

    $21.10 $12.65

  • Sale -27% ERP 5303918214 Refrigerator Defrost Thermostat Exact Replacement Parts

    Exact Replacement Parts ERP 5303918214 Refrigerator Defrost Thermostat

    ERP 5303918214 Refrigerator Defrost Thermostat  Replaces Part Numbers: 5303918214, 75303918214, 892545, AH469522, EA469522, AP2150145, PS469522. L47-22F. 1/4" side push on clip. 6" leads with stripped wire ends. Description: This Defrost Thermostat Kit is a replacement defrost thermostat for specific Frigidaire refrigerator models. This kit contains the defrost thermostat, which is a crucial component in the refrigerator's defrost system.   This is an aftermarket part that can be used as a replacement for the OEM part.

    $19.80 $14.50

  • Sale -26%Last stock! ERP 5303918202 Refrigerator Defrost Thermostat Exact Replacement Parts

    Exact Replacement Parts ERP 5303918202 Refrigerator Defrost Thermostat

    ERP 5303918202 Refrigerator Defrost Thermostat L47-22F. 5/16" side push on clip. 4" & 6" leads with stripped wire ends. Replaces Part Numbers:5303918202, 241619705, 833603, AH469510, AP2150133, EA469510, PS469510   This is an aftermarket part that can be used as a replacement for the OEM part. California Residents only WARNING: Cancer and/or Reproductive Harm - www.p65warnings.ca.gov

    $19.00 $13.99

  • Sale -39% ERP 4387490 Refrigerator Defrost Thermostat Replaces WP4387490 Exact Replacement Parts

    Exact Replacement Parts ERP 4387490 Refrigerator Defrost Thermostat Replaces WP4387490

    ERP 4387490 Refrigerator Defrost Thermostat – Replacement for Whirlpool, Kenmore, Roper, and More Product Overview This Defrost Bimetal is a replacement part for select Kenmore, Whirlpool refrigerator models. This crucial component functions as a safety thermostat in the freezer's defrost system. It is designed to monitor and control the temperature of the evaporator coils during the defrost cycle, preventing them from overheating. By cutting off the defrost heater when the coils reach a certain temperature, the bimetal helps maintain optimal functioning and efficiency of the refrigerator’s defrost system. L58-14F. 5/16" side push on clip. 24" leads with stripped wire ends. Replaces Part Numbers This thermostat replaces part numbers WP4387490, 4387490, 2176941, 2183073, 586200, 9791823, SL7490, AP6009313, PS11742470.  It matches OEM design and fits a range of Whirlpool-built refrigerators. Compatible Brands Compatible with refrigerators by Whirlpool, Kenmore (Whirlpool-made), Roper, Estate, KitchenAid, and Crosley. Suitable for use in many side-by-side and top-freezer models. Fixes the Following Issues Frost buildup in freezer compartment Refrigerator not defrosting Inconsistent temperature Blocked or restricted airflow due to ice Why Buy from Parts-O-Matic Quality-tested aftermarket part at an affordable price Fast and free shipping across the U.S. Trusted by DIYers and appliance technicians Easy installation with reliable performance

    $19.65 $11.98

  • Sale -37%Last stock! WR50X10070CM Refrigerator Defrost Thermostat Replaces WR50X10070 Choice Manufactured Parts

    Choice Manufactured Parts Choice WR50X10070 Refrigerator Defrost Thermostat

    WR50X10070 Refrigerator Defrost Thermostat – Replacement for GE, Hotpoint Product Overview This Defrost Thermostat is a replacement part designed for use in select GE refrigerator models. This component acts as a safety device in the refrigerator's defrost system, preventing the freezer from overheating during the defrost cycle. It works by monitoring the temperature of the evaporator coil and turning off the defrost heater when the coil gets warm enough, thus safeguarding the freezer from getting too hot.  Fits GE 18 CF refrigerators. Tube mount, 37TV31 series, L58-30F. Replaces Part Numbers This thermostat replaces WR50X10070, WR50X10077, AH1155319, EA1155319, AP3884318, PS1155319. It is designed to match the performance and dimensions of the original part. Compatible Brands Compatible with GE, Hotpoint, and Kenmore refrigerators manufactured by GE. Fits various top-freezer and side-by-side models that use this defrost thermostat. Fixes the Following Issues Refrigerator or freezer not defrosting Ice or frost buildup around evaporator coils Inconsistent or warm fridge temperature Poor airflow due to frozen components Why Buy from Parts‑O‑Matic Affordable and reliable aftermarket solution Fast and free shipping across the U.S. Easy installation with plug-and-play compatibility Trusted by DIYers and professional technicians

    $19.00 $11.99

  • Sale -39%Last stock! WR50X60 Refrigerator Genuine OEM Defrost Thermostat  Parts-O-Matic

    GE WR50X60 Refrigerator Genuine OEM Defrost Thermostat

    WR50X60 Refrigerator Genuine OEM Defrost Thermostat – For GE, Hotpoint, and Kenmore Product Overview The WR50X60 Refrigerator Defrost Thermostat is a genuine OEM part designed to regulate the defrost cycle by monitoring the temperature near the evaporator coils. When the temperature drops to a preset level, the thermostat activates the defrost heater to melt frost and maintain proper airflow. A faulty defrost thermostat can cause excessive frost buildup and cooling problems. This OEM replacement ensures reliable operation and is ideal for long-term use in compatible refrigerator models. Replaces Part Numbers This OEM thermostat replaces WR50X60, 3489, WR23X5030, WR50X0005, WR50X0007, WR50X0010, WR50X0011, WR50X0017, WR50X0021, WR50X0023, WR50X0026, WR50X0027, WR50X0036, WR50X0060, WR50X0076, WR50X0077, WR50X0089, WR50X0091, WR50X0093, WR50X0101, WR50X0105, WR50X0107, WR50X0110, WR50X0111, WR50X0115, WR50X0125, WR50X10, WR50X101, WR50X105, WR50X107, WR50X11, WR50X110, WR50X111, WR50X115, WR50X125, WR50X17, WR50X21, WR50X23, WR50X26, WR50X27, WR50X36, WR50X5, WR50X5009, WR50X5026, WR50X7, WR50X76, WR50X77, WR50X89, WR50X91, WR50X93, AH303547, EA303547, AP2071242, PS303547. It offers a direct fit and performance consistent with original factory-installed components. Compatible Brands Compatible with GE, Hotpoint, and Kenmore refrigerators made by GE. It fits various top-freezer, bottom-freezer, and side-by-side models that use this thermostat in their defrost systems. Fixes the Following Issues Frost accumulation in freezer Refrigerator not defrosting Blocked airflow due to ice Inconsistent cooling performance Why Buy from Parts‑O‑Matic 100% genuine OEM part for guaranteed compatibility Fast and free shipping throughout the U.S. Trusted by appliance technicians and DIYers Hassle-free returns and responsive support

    $26.00 $15.98

  • Sale -49% WR50X10071CM Refrigerator Defrost Thermostat Replaces WR50X10071 Choice Manufactured Parts

    Choice Manufactured Parts WR50X10071CM Refrigerator Defrost Thermostat Replaces WR50X10071

    WR50X10071CM Refrigerator Defrost Thermostat Open: 64 Degree, Close: 23 Degree, 41 Degree Diff. Fits GE refrigerators. Replaces Part Numbers:  WR50X10071, WR50X10021, WR50X10076, WR50X22303, WR50X22304, WR50X30071, AH1155320, EA1155320, AP3884319, PS1155320.  This is an aftermarket part that can be used as a replacement for the OEM part. California Residents only WARNING: Cancer and/or Reproductive Harm - www.p65warnings.ca.gov

    $16.80 $8.50

  • Sale -51% WR50X10025CM Refrigerator Defrost Thermostat Replaces WR50X10025  Parts-O-Matic

    Choice Manufactured Parts WR50X10025CM Refrigerator Defrost Thermostat Replaces WR50X10025

    WR50X10025CM Refrigerator Defrost Thermostat L50-30F, tube mount with 1 - 15" lead and 1 - 4.5" lead. Fits GE top mount refrigerators. Replaces Part Numbers: WR50X10025, AH303445, EA303445, AP3190397, PS303445.   This is an aftermarket part that can be used as a replacement for the OEM part.   California Residents only WARNING: Cancer and/or Reproductive Harm - www.p65warnings.ca.gov

    $26.50 $12.99

Refrigerator-Defrost-Thermostat-and-Sensors Parts-O-Matic

Refrigerator Defrost Thermostat and Sensors

📝 Intro

Keep your refrigerator frost-free with a reliable defrost thermostat and Sensors from Parts-O-Matic. We stock a wide range of OEM and aftermarket thermostats designed to restore proper cooling and extend the life of your appliance.


❄️ Product Overview

A refrigerator defrost thermostat is a critical part of your fridge’s defrost system. It senses the evaporator coil temperature and controls the defrost cycle. When the thermostat fails, you may notice frost buildup, warm compartments, or a refrigerator that won’t stay cold.

At Parts-O-Matic, we carry a full selection of Genuine OEM and high-quality aftermarket refrigerator defrost thermostats to keep your appliance running smoothly.

✅ OEM & aftermarket options available
✅ Fits most major refrigerator brands
✅ Quick & easy installation
✅ Free shipping on all orders


⚙️ Functions of a Refrigerator Defrost Thermostat

  • 🌡️ Monitors Evaporator Coil Temperature – Ensures the defrost cycle starts and stops at the correct time.

  • ❄️ Prevents Frost Buildup – Stops ice from forming on evaporator coils, maintaining proper airflow.

  • 🧊 Maintains Consistent Cooling – Keeps food at safe, steady temperatures by regulating defrost cycles.

  • 🔧 Protects Other Components – Prevents over-freezing and reduces strain on the compressor and fan motor.

  • ⏱️ Automatic Reset – Turns off the defrost heater once the correct temperature is reached.


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  • 🚚 Always Free Shipping

  • 🛠️ Genuine OEM & quality aftermarket parts in stock

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  • 📍 Based in Woodbridge, VA – fast nationwide shipping

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