---
product_id: 179889293
title: "4387503 Thermostat"
brand: "bluestars"
price: "120 kr"
currency: DKK
in_stock: null
reviews_count: 8
url: https://www.desertcart.dk/products/179889293-4387503-thermostat
store_origin: DK
region: Denmark
---

# Lifetime protection warranty OEM-standard durable build Opens at 48°F, closes at 62°F 4387503 Thermostat

**Brand:** bluestars
**Price:** 120 kr
**Availability:** ❌ Out of Stock

## Summary

> ❄️ Keep your cool with precision and peace of mind!

## Quick Answers

- **What is this?** 4387503 Thermostat by bluestars
- **How much does it cost?** 120 kr with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/179889293-4387503-thermostat)

## 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

- • **OEM-Grade Durability:** Crafted with premium materials to meet and exceed original manufacturer standards.
- • **Cost-Effective Repair:** Save time and money by restoring your fridge’s cooling efficiency without expensive service calls.
- • **Universal Compatibility:** Seamlessly fits Whirlpool, Kenmore, and other top brands for hassle-free replacement.
- • **Lifetime Protection Guarantee:** Buy with confidence knowing your thermostat is backed by a lifetime warranty against defects.
- • **Precision Temperature Control:** Maintains optimal defrost cycle between 48°F and 62°F for flawless fridge performance.

## Overview

The BlueStars Upgraded 4387503 Bimetal Defrost Thermostat is a high-quality, OEM-standard replacement part designed to regulate the defrost cycle in Whirlpool, Kenmore, and compatible refrigerators. It operates between 48°F and 62°F to prevent overheating during defrost, ensuring efficient cooling and preventing frost buildup. Easy to install and backed by a lifetime protection warranty, it’s the smart, cost-effective solution to common fridge issues like leaking or inconsistent temperatures.

## Description

Full description not available

## 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.

## Product Details

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

## Images

![4387503 Thermostat - Image 1](https://m.media-amazon.com/images/I/71TRxL4wuiL.jpg)
![4387503 Thermostat - Image 2](https://m.media-amazon.com/images/I/81ydBEz2YzL.jpg)
![4387503 Thermostat - Image 3](https://m.media-amazon.com/images/I/713DNTqDAaL.jpg)
![4387503 Thermostat - Image 4](https://m.media-amazon.com/images/I/81fdSc4Wd1L.jpg)
![4387503 Thermostat - Image 5](https://m.media-amazon.com/images/I/81LPZS6dMOL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect fit and work as they should
*by F***P on June 25, 2025*

The refrigerator is a 1995 KitchenAid mod# KTRS21MDAL02 and the parts fit like a glove.After the 2nd timer failed I knew there was another problem. Heater element ohm'd out ok,(if it works it'll get hot and you'll hear water drops steam off when they hit it, the meter was overabundance of caution but be careful!), when I changed it so I assumed the first timer was bad. Well, turns out the timer and limit switch are available as a kit. I guess those failures are common enough to sell both parts together. I suggest changing both. Yes, taking the freezer apart is no fun but it also isn't difficult, just time consuming and timers aren't free. May as well have a bowl/pail of warm soapy water and a rag handy, there's more behind the floor panels than I ever would have guessed... The limit switch is hard wired direct so it will need to be cut and the new one crimped or nutted in. There are videos if your nervous (don't be nervous but DO unplug your unit). Not hard, just pair up the wires to their matching mates and attach them to each other. So now my fridge has been running just like the old days and I have ice cubes again! This is a mid level repair that doesn't require any intense knowledge but some mechanical aptitude will go far. You can disassemble everything for inspection (unplug 1st) and then, plug back in, advance the timer manually and observe/inspect everything in operation. Especially convenient when you're looking at the heater element. This is for the girls too, you can do it as easy as anyone else can so don't be afraid to try. Watch a vid or 2 and save yourself some hard earned cash! You can do it!

### ⭐⭐⭐⭐⭐ Back working again
*by J***R on July 19, 2025*

Got our Fridgidaire MRS20HRAW9 back working properly again! After ice build up in the freezer I found this part needed replacing and this one did the job.

### ⭐⭐⭐⭐⭐ 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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**Shop now:** [https://www.desertcart.dk/products/179889293-4387503-thermostat](https://www.desertcart.dk/products/179889293-4387503-thermostat)

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-01-25*