--- product_id: 179889293 title: "[Upgraded] BlueStars 4387503 Refrigerator Bimetal Defrost Thermostat" brand: "bluestars" price: "¥3197" currency: JPY in_stock: true category: "Blue Stars" url: https://www.desertcart.jp/products/179889293-upgraded-bluestars-4387503-refrigerator-bimetal-defrost-thermostat store_origin: JP region: Japan --- # Easy clip-on installation for top brands Opens at 48°F to prevent overheating Lifetime protection against defects [Upgraded] BlueStars 4387503 Refrigerator Bimetal Defrost Thermostat **Brand:** bluestars **Price:** ¥3197 **Availability:** ✅ In Stock ## Summary > 🧊 Keep your cool with precision defrost control! ## Quick Answers - **What is this?** [Upgraded] BlueStars 4387503 Refrigerator Bimetal Defrost Thermostat by bluestars - **How much does it cost?** ¥3197 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/179889293-upgraded-bluestars-4387503-refrigerator-bimetal-defrost-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 - • **Lifetime Reliability:** Backed by 100% lifetime protection ensuring worry-free, long-lasting performance. - • **Cost-Effective Repair:** Save time and money by fixing defrost issues without replacing the entire refrigerator. - • **Universal Compatibility:** Fits major brands like Whirlpool, Kenmore, KitchenAid, and more for seamless replacement. - • **Hassle-Free Installation:** Designed for quick clip-on setup, no professional help needed—get your fridge running smoothly fast. - • **Precision Temperature Control:** Opens at 48°F and closes at 62°F to optimize defrost cycles and protect your fridge. ## Overview The BlueStars 4387503 Bimetal Defrost Thermostat is a durable, OEM-standard replacement part designed to regulate refrigerator defrost cycles by opening at 48°F and closing at 62°F. Compatible with leading brands like Whirlpool and KitchenAid, it prevents overheating during defrost, extends appliance life, and comes with lifetime protection for reliable, cost-effective repairs. ## Description Buy [Upgraded] BlueStars 4387503 Refrigerator Bimetal Defrost Thermostat | Compatible with Whirlpool Kenmore KitchenAid Refrigerators - Replaces WP4387503 343917 61002113 PS11742474 AP6009317 2149641: Freezer Parts & Accessories - desertcart.com ✓ FREE DELIVERY possible on eligible purchases ## 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 | | Additional Features | EASY TO INSTALL | | Age Range Description | Adult | | Best Sellers Rank | #73,786 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #88 in Freezer Parts & Accessories | | Brand Name | BlueStars | | Color | Silver | | Customer Reviews | 4.7 4.7 out of 5 stars (388) | | Display Type | Analog | | Included Components | 1 x 4387503 Bimetal Defrost Thermostat | | Indoor Outdoor Usage | Indoor | | Item Length | 7.8 inches | | LowerTemperature Range | 48 °F | | Manufacturer | BlueStars | | Model | 4387503 WP4387503 PS11742474 AP6009317 | | Model Name | 4387503 Refrigerator Bimetal Defrost Thermostat | | Outer Material | Metal | | Part Number | WP4387503 WP4387503 AP6009317 PS11742474 | | Power Source | Battery Powered | | Product Care Instructions | Wipe Clean | | Reusability | Reusable | | Unit Count | 1 Count | | Upper Temperature Range | 62 °F | ## 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 ![[Upgraded] BlueStars 4387503 Refrigerator Bimetal Defrost Thermostat - Image 1](https://m.media-amazon.com/images/I/71TRxL4wuiL.jpg) ## 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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/179889293-upgraded-bluestars-4387503-refrigerator-bimetal-defrost-thermostat](https://www.desertcart.jp/products/179889293-upgraded-bluestars-4387503-refrigerator-bimetal-defrost-thermostat) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-09-28*