---
product_id: 179889293
title: "BlueStars Upgraded 4387503 Refrigerator Bimetal Defrost Thermostat Replacement - Compatible with Whirlpool & Kenmore Refrigerators - Replaces WP4387503 343917 61002113 PS11742474 AP6009317"
brand: "bluestars"
price: "2528 som"
currency: KGS
in_stock: true
reviews_count: 11
category: "Blue Stars"
url: https://www.desertcart.kg/products/179889293-bluestars-upgraded-4387503-refrigerator-bimetal-defrost-thermostat-replacement-compatible-whirlpool
store_origin: KG
region: Kyrgyzstan
---

# OEM-standard durable metal build Lifetime protection warranty 48°F open / 62°F close temp range BlueStars Upgraded 4387503 Refrigerator Bimetal Defrost Thermostat Replacement - Compatible with Whirlpool & Kenmore Refrigerators - Replaces WP4387503 343917 61002113 PS11742474 AP6009317

**Brand:** bluestars
**Price:** 2528 som
**Availability:** ✅ In Stock

## Summary

> ❄️ Upgrade your fridge’s chill game—never let ice slow you down!

## Quick Answers

- **What is this?** BlueStars Upgraded 4387503 Refrigerator Bimetal Defrost Thermostat Replacement - Compatible with Whirlpool & Kenmore Refrigerators - Replaces WP4387503 343917 61002113 PS11742474 AP6009317 by bluestars
- **How much does it cost?** 2528 som with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/179889293-bluestars-upgraded-4387503-refrigerator-bimetal-defrost-thermostat-replacement-compatible-whirlpool)

## Best For

- bluestars enthusiasts

## Why This Product

- Trusted bluestars brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Crafted from premium metal materials meeting OEM standards for long-lasting, reliable performance.
- • **Lifetime Peace of Mind:** Backed by a 100% lifetime protection guarantee—your fridge’s defrost system is covered for life.
- • **Effortless DIY Installation:** Designed for seamless clip-on fit with top brands like Whirlpool & Kenmore—no technician needed.
- • **Cost-Effective Fridge Rescue:** Save time and money by fixing defrost issues yourself, avoiding expensive service calls.
- • **Precision Temperature Control:** Maintains optimal defrost cycle between 48°F and 62°F to prevent ice buildup and overheating.

## Overview

The BlueStars Upgraded 4387503 Bimetal Defrost Thermostat is a precision-engineered replacement part compatible with Whirlpool, Kenmore, and other major brands. Operating between 48°F and 62°F, it efficiently controls the defrost cycle to prevent ice buildup and overheating. Made from durable OEM-standard metal, it offers easy clip-on installation and comes with a lifetime protection warranty, making it a smart, cost-effective fix for common refrigerator defrost issues.

## Description

Buy BlueStars Upgraded 4387503 Refrigerator Bimetal Defrost Thermostat Replacement - Compatible with Whirlpool & Kenmore Refrigerators - Replaces WP4387503 343917 61002113 PS11742474 AP6009317: Freezer Parts & Accessories - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Does its job - If you're shopping for this, you probably know pretty well what it's for and what issue it could potentially solve. Obviously, it only works for select freezers, as it's designed in a specific way. So the question is: does it work or no? And yes, it does work. It solved my problem completely. No more icing up for my freezer.
Review: Easy install and solved icing issue. - Easy install my fridge kept icing up and after install no more issue with that. This from what I understand is a sensor that turns on a heating element in fridge so it doesn't ice up at the back of the fridge and cause ice to build up. Easy fix if you are a d.i.y person. Like me.

## Features

- IMPORTANT: Please check the model number carefully before ordering. If you're unsure about the compatibility, send us your refrigerator model number and we can help you confirm if it fits or not.
- 100% LIFETIME PROTECTION: Enjoy reliable performance with our lifetime protection, ensuring that your product will always be covered for any defects or issues that may arise.
- PREMIUM QUALITY: The replacement part is made from durable high quality material and well-tested by the manufacturer- Meets OEM standards - Ensure long-lasting and effective performance. The thermostat is a L48-30F which means it opens at 48 degrees F and closes at 62 degrees F.
- SAVE TIME SAVE MONEY: Inexpensive way to fix or repair a refrigerator and a freezer. It stops the fridge from overheating during the defrost cycle by protecting the evaporator. This clip-on thermostat will sense the temperature increase in the evaporator during the defrost process, and will cycle the defrost heater off after the ice or frost is melted. This part fixes the following symptoms: Leaking | Freezer not defrosting | Fridge too warm | Freezer section too warm.
- EASY TO INSTALL: It is made exactly fit for most top name brands (Whirlpool, Kenmore, KitchenAid, Roper, Estate, Maytag, Inglis, Crosley, Hoover, Amana, International, Caloric). Fits models: 106.708764, 106.9630211, 106.9718280, 106.9808715, 106.9808785, 10642102300, 10642102301, 10642104300, 10642106300, 10642106301, 10660162990, etc.
- REPLACEMENT PART NUMBER: This 4387503 Bimetal Defrost Thermostat replaces part numbers: 2149641, 2149643, 2163894, 2172694, 2182380, 2183072, 2221677, 4343917, WP4387503, 61002113, R0950042, WP4387503VP, PS11742474, AP6009317.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07X25W7CS |
| Age Range (Description) | Adult |
| Best Sellers Rank | #65,721 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #53 in Freezer Parts & Accessories |
| Brand | BlueStars |
| Color | Silver |
| Date First Available | August 29, 2019 |
| Display Type | Analog |
| Included Components | 1 x 4387503 Bimetal Defrost Thermostat |
| Indoor/Outdoor Usage | Indoor |
| Item Length | 7.8 Inches |
| Item Weight | 0.634 ounces |
| Item model number | 4387503 WP4387503 PS11742474 AP6009317 |
| Lower Temperature Rating | 48 Degrees Fahrenheit |
| Manufacturer | BlueStars |
| Model Name | 4387503 Refrigerator Bimetal Defrost Thermostat |
| Outer Material | Metal |
| Power Source | Battery Powered |
| Product Care Instructions | Wipe Clean |
| Reusability | Reusable |
| Special Feature | EASY TO INSTALL |
| Unit Count | 1 Count |
| Upper Temperature Rating | 62 Degrees Fahrenheit |

## Product Details

- **Age Range (Description):** Adult
- **Brand:** BlueStars
- **Color:** Silver
- **Display Type:** Analog
- **Included Components:** 1 x 4387503 Bimetal Defrost Thermostat
- **Outer Material:** Metal
- **Power Source:** Battery Powered
- **Product Care Instructions:** Wipe Clean
- **Special Feature:** EASY TO INSTALL
- **Unit Count:** 1 Count

## Images

![BlueStars Upgraded 4387503 Refrigerator Bimetal Defrost Thermostat Replacement - Compatible with Whirlpool & Kenmore Refrigerators - Replaces WP4387503 343917 61002113 PS11742474 AP6009317 - Image 1](https://m.media-amazon.com/images/I/71TRxL4wuiL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Does its job
*by M***R on August 26, 2025*

If you're shopping for this, you probably know pretty well what it's for and what issue it could potentially solve. Obviously, it only works for select freezers, as it's designed in a specific way. So the question is: does it work or no? And yes, it does work. It solved my problem completely. No more icing up for my freezer.

### ⭐⭐⭐⭐⭐ Easy install and solved icing issue.
*by R***E on June 28, 2024*

Easy install my fridge kept icing up and after install no more issue with that. This from what I understand is a sensor that turns on a heating element in fridge so it doesn't ice up at the back of the fridge and cause ice to build up. Easy fix if you are a d.i.y person. Like me.

### ⭐⭐⭐⭐⭐ Works great as replacement for old fridge defrost thermostat
*by R***N on January 13, 2025*

This worked great as a replacement for an old defrost thermostat we have in our garage fridge. The freezer started filling with frost and I finally figured out this was the part that had stopped working. It took maybe 30 minutes to replace after I got the part from Amazon. There are several videos online on how to change it. It saved me a service call and hundreds of $$$ for such an inexpensive part.

## Frequently Bought Together

- BlueStars 4387503 Refrigerator Bimetal Defrost Thermostat Replacement - Compatible with Whirlpool & Kenmore Refrigerators - Replaces WP4387503 343917 61002113 PS11742474 AP6009317
- BlueStars Ultra Durable W10822278 Refrigerator Freezer Defrost Timer Replacement - Compatible with Whirlpool KitchenAid Kenmore Refrigerators - Replaces PS11723171 945514 482493 R0950217 2188372
- BlueStars W10225581 Refrigerator Bimetal Defrost Thermostat Replacement - Compatible with Whirlpool Kenmore - Replaces WPW10225581 PS11750673 AP6017375 2188824 2321799 W10260437

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*Product available on Desertcart Kyrgyzstan*
*Store origin: KG*
*Last updated: 2026-02-19*