--- product_id: 519760796 title: "AISIN THT-015 Thermostat" brand: "aisin" price: "£28.56" currency: GBP in_stock: true reviews_count: 5 category: "Aisin" url: https://www.desertcart.co.uk/products/519760796-aisin-tht-015-thermostat store_origin: GB region: United Kingdom --- # Critical for peak cooling system performance OE exact Form, Fit & Function Maintains optimal coolant temp ±2°C AISIN THT-015 Thermostat **Brand:** aisin **Price:** £28.56 **Availability:** ✅ In Stock ## Summary > 🌡️ Stay Cool, Drive Confident: The Thermostat Your Engine Deserves ## Quick Answers - **What is this?** AISIN THT-015 Thermostat by aisin - **How much does it cost?** £28.56 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/519760796-aisin-tht-015-thermostat) ## Best For - aisin enthusiasts ## Why This Product - Trusted aisin brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Durability You Can Trust:** Manufactured by AISIN, a top OEM supplier ensuring long-lasting operation - • **Plug-and-Play Replacement:** Direct OEM part number 90916-03100 for hassle-free upgrade - • **Optimal Temperature Control:** Keeps your engine coolant perfectly balanced to prevent overheating or inefficiency - • **Precision Engineered OE Quality:** Exact fit and function for seamless installation and reliability - • **Enhanced Cooling System Stability:** Minimizes temperature fluctuations for consistent engine performance ## Overview The AISIN THT-015 Thermostat is an OEM-quality replacement part designed for exact form, fit, and function. It plays a critical role in maintaining your vehicle’s cooling system by regulating coolant temperature within an optimal range, ensuring engine stability and preventing overheating. Trusted by professionals and backed by AISIN’s manufacturing excellence, this thermostat delivers reliable performance and durability for your car’s heart. ## Description Product Description Thermostats from AISIN are OE manufactured for exact Form, Fit and Function. They contribute to maintaining cooling system performance and are a critical aspect of the cooling system. Thermostats also keep the coolant within the optimal temperature range. Box Contains Thermostat Review: Worked perfectly for my 2007 Toyota Tundra, 4.7L. Review: Aisin seems to always make quality car parts. This thermostat fit perfectly and will probably last the life of the cruiser. Price was good can't complain ## Features - OE manufactured for exact Form, Fit and Function - Contributes to maintaining cooling system performance - Critical aspect of the cooling system - Keeps the coolant within the optimal temperature range ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01LZVUYEZ | | Best Sellers Rank | 752,603 in Automotive ( See Top 100 in Automotive ) 1,541 in Car Engine Thermostats | | Brand | AISIN | | Customer Reviews | 4.6 4.6 out of 5 stars (274) | | Date First Available | 22 Sept. 2016 | | Item Weight | 170 g | | Item model number | THT-015 | | Manufacturer | AISIN | | Manufacturer part number | THT-015 | | Model | AISIN | | OEM Part Number | 90916-03100 | | Position | Centre | | Product Dimensions | 7.62 x 7.62 x 7.11 cm; 170 g | ## Images ![AISIN THT-015 Thermostat - Image 1](https://m.media-amazon.com/images/I/816hpM3IRgL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by D***D on 5 May 2026* Worked perfectly for my 2007 Toyota Tundra, 4.7L. ### ⭐⭐⭐⭐⭐ Review *by G***E on 25 March 2026* Aisin seems to always make quality car parts. This thermostat fit perfectly and will probably last the life of the cruiser. Price was good can't complain ### ⭐⭐⭐⭐⭐ Review *by B***D on 11 November 2023* My Water Pump started leaking on my 2005 Tundra 4.7 It was intermittent for a while, so I just kept the coolant topped up. It started getting worse, so I started ordering all the parts. Water pump, timing belt, ect. I hooked up my OBD scanner to see the actual temperature of the coolant, and it was hovering from 205 to 210, which is hotter than ideal for sure. After a long and exciting repair job, everything is back together, and 2 weeks later, the coolant temp stays at 186-187 consistently. I replaced the water pump, radiator, timing belt, tensioner and drive belt, also, but it's good to know the new Thermostat is working perfectly. I would venture to guess the old one was not Aisin/Toyota. I myself was tempted to get a cheaper one, as the parts list got bigger. But the old thermostat was definitely worn out. The rubber parts were all misshapen and definitely not sealing, or allowing flow like they should. Same with the radiator cap, the rubber was stretched out. So, while I replaced most of the entire cooling system, and the new thermostats effect difficult to say, it good to know it's working perfectly. The temperature would swing +/- 10 degrees when driving around before, now it maybe moves +/- 2. Side note, as many have said before, the dash temperature guage is not very helpful with these things. During the whole fiasco, it never read anything but right in the middle. If you hit 230 or 240 degrees, I'm sure it would let you know, but at that point things are getting bad. I use a $20 Bluetooth obd scanner I got here on Amazon, and it's been a great investment. Has helped me solve several issues. ## Frequently Bought Together - AISIN THT-015 Engine Coolant Thermostat - Compatible with Select Lexus GS400, GS430, GX470, LS400, LS430, LX450, LX470, SC400, SC430 Toyota 4Runner, Land Cruiser, Sequoia, Tundra - AISIN TKT-021 Engine Timing Belt Kit with Water Pump - Compatible with Select Lexus GS400, GS430, GX470, LS400, LS430, LX470, SC400, SC430 Toyota 4Runner, Land Cruiser, Sequoia, Tundra - Toyota Genuine Thermostat Gasket --- ## 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.co.uk/products/519760796-aisin-tht-015-thermostat](https://www.desertcart.co.uk/products/519760796-aisin-tht-015-thermostat) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-24*