--- product_id: 157532446 title: "THT-019 Engine Coolant Thermostat - Compatible with Select Lexus ES, HS, LS, RX, SC Scion tC, xB, xD Toyota 4Runner, Avalon, Camry, Corolla, Highlander, RAV4, Sienna, Tacoma, Tundra + More" brand: "aisin" price: "£23.12" currency: GBP in_stock: true reviews_count: 13 category: "Aisin" url: https://www.desertcart.co.uk/products/157532446-tht-019-engine-coolant-thermostat-compatible-with-select-lexus-es store_origin: GB region: United Kingdom --- # Exact operating temp Direct engine mount OE matched precision THT-019 Engine Coolant Thermostat - Compatible with Select Lexus ES, HS, LS, RX, SC Scion tC, xB, xD Toyota 4Runner, Avalon, Camry, Corolla, Highlander, RAV4, Sienna, Tacoma, Tundra + More **Brand:** aisin **Price:** £23.12 **Availability:** ✅ In Stock ## Summary > 🔥 Keep your engine cool, your ride smooth, and your status premium. ## Quick Answers - **What is this?** THT-019 Engine Coolant Thermostat - Compatible with Select Lexus ES, HS, LS, RX, SC Scion tC, xB, xD Toyota 4Runner, Avalon, Camry, Corolla, Highlander, RAV4, Sienna, Tacoma, Tundra + More by aisin - **How much does it cost?** £23.12 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/157532446-tht-019-engine-coolant-thermostat-compatible-with-select-lexus-es) ## 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 - • **Trusted Global Leader:** Backed by AISIN’s 50+ years of automotive innovation and a 1-year manufacturer warranty. - • **Precision OE Engineering:** Experience flawless fit, form, and function with AISIN’s exact OE matched thermostat. - • **Wide Vehicle Compatibility:** Seamlessly fits select Lexus, Toyota, and Scion models—verify fitment to avoid downtime. - • **Reliable Temperature Control:** Opens precisely at the specified temperature for consistent engine cooling performance. - • **Durable High-Quality Materials:** Crafted from premium alloy steel and plastic for long-lasting reliability under pressure. ## Overview The AISIN THT-019 Engine Coolant Thermostat delivers precise temperature regulation with OE matched technology, ensuring optimal engine performance and longevity. Compatible with a broad range of Lexus, Toyota, and Scion models, it’s built from high-grade materials for dependable, long-term use. Trusted globally, AISIN combines decades of engineering excellence to keep your vehicle running flawlessly. ## Description AISIN OE matched engine coolant thermostats are designed for efficient, consistent performance and manufactured using only the highest quality materials. With superior OE technology and know-how, AISIN ensures that every thermostat provides perfect OE form, fit, and function and features the correct OE specified operating temperature. AISIN is a leader in the development and production of high-quality original equipment matched components and systems for the automotive industry. Founded in 1965 to produce original equipment automotive parts, AISIN has grown into a $25+ billion global enterprise with approximately 70,000 employees worldwide. Superior products through engineering excellence, progressive technological development, and dedication to service are some factors which have contributed to bringing AISIN to its position as a multiple-award-winning global leader in automotive parts. Review: High Quality Thermostat - Tested sat out of the box for once, I've tried a lot of thermostat brands (even Napa) and they are very hit or miss these days. Quality control since the pandemic has been atrociously worse. Aisin however has remained top notch. Opens right at the advertised temp and opens linearly until maximum opening, and reliably opens and closes effectively. Works well. Don't forget a thermostat gasket if you need one (but don't add one if you don't!) Review: Factory replacement - Exact fit and replacement for your factory part ## Features - AISIN OE matched engine coolant thermostats are designed for efficient, consistent performance - With superior OE technology and know-how, AISIN ensures that every thermostat provides perfect OE form, fit, and function - Manufactured using only the highest quality materials for long life and dependable cooling system performance - All AISIN thermostats feature the correct OE specified operating temperature - Gasket not included - Compatible with select vehicles (engine may affect fitment - verify specific fitment details with fit checker above): LEXUS: 1990-91 ES250, 1992-03 ES300, 2004-06 ES330, 2007-18 ES350, 2010-12 HS250h, 1996-97 LS400, 1999-03 RX300, 2004-06 RX330 - Compatible with (continued): LEXUS: 2007-15 RX350, 2006-08 RX400h, 2010-15 RX450h, 1996-97 SC400; SCION: 2005-16 tC, 2008-15 xB, 2008-14 xD; TOYOTA: 1996-02 4Runner, 1995-18 Avalon, 1988-17 Camry, 1990-93,2000-05 Celica, 1998-14 Corolla - Compatible with (continued): TOYOTA: 2001-19 Highlander, 2003-14 Matrix, 1991-95 MR2, 2000-06 MR2 Spyder, 2001-18 RAV4, 1998-16 Sienna, 1999-08 Solara, 1995-98 T100, 1995-04 Tacoma, 2000-04 Tundra, 2009-16 Venza ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07GNQY7X4 | | Backlight | No | | Best Sellers Rank | #17,093 in Automotive ( See Top 100 in Automotive ) #4 in Automotive Replacement Engine Thermostats | | Brand | AISIN | | Brand Name | AISIN | | Color | Factory | | Connectivity Protocol | Wired | | Connectivity Technology | Wired | | Control Method | Touch | | Control Type | Button Control | | Controller Type | touch | | Customer Reviews | 4.7 out of 5 stars 553 Reviews | | Display Type | manual | | Global Trade Identification Number | 04954514965101 | | Included Components | thermostat | | Item Type Name | Aisin THT-019 OE Engine Coolant Thermostat | | Manufacturer | AISIN | | Manufacturer Part Number | THT-019 | | Manufacturer Warranty Description | 1 year. | | Material Type | Alloy Steel, Plastic | | Model Name | AISIN | | Model Number | THT-019 | | Mounting Type | Direct Engine Mount | | Power Source | Hardwire | | Product Style | Modern | | Shape | cylindrical | | Specific Uses For Product | [POSSIBLE USES: Engine temperature regulation, Vehicle heating and cooling system control, Automotive cooling system maintenance] Specific Uses For Product [POSSIBLE USES: Engine temperature regulation, Vehicle heating and cooling system control, Automotive cooling system maintenance] See more | | Temperature Control Type | automatic | | Unit Count | 1.0 Count | | Voltage | 12 Volts | ## Product Details - **Brand:** AISIN - **Color:** Factory - **Controller Type:** touch - **Model Name:** AISIN ## Images ![THT-019 Engine Coolant Thermostat - Compatible with Select Lexus ES, HS, LS, RX, SC Scion tC, xB, xD Toyota 4Runner, Avalon, Camry, Corolla, Highlander, RAV4, Sienna, Tacoma, Tundra + More - Image 1](https://m.media-amazon.com/images/I/71hjMs76KHL.jpg) ![THT-019 Engine Coolant Thermostat - Compatible with Select Lexus ES, HS, LS, RX, SC Scion tC, xB, xD Toyota 4Runner, Avalon, Camry, Corolla, Highlander, RAV4, Sienna, Tacoma, Tundra + More - Image 2](https://m.media-amazon.com/images/I/71A5l1ICI2L.jpg) ![THT-019 Engine Coolant Thermostat - Compatible with Select Lexus ES, HS, LS, RX, SC Scion tC, xB, xD Toyota 4Runner, Avalon, Camry, Corolla, Highlander, RAV4, Sienna, Tacoma, Tundra + More - Image 3](https://m.media-amazon.com/images/I/71pxzwT+jKL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ High Quality Thermostat *by J***N on November 12, 2025* Tested sat out of the box for once, I've tried a lot of thermostat brands (even Napa) and they are very hit or miss these days. Quality control since the pandemic has been atrociously worse. Aisin however has remained top notch. Opens right at the advertised temp and opens linearly until maximum opening, and reliably opens and closes effectively. Works well. Don't forget a thermostat gasket if you need one (but don't add one if you don't!) ### ⭐⭐⭐⭐⭐ Factory replacement *by B***Y on April 10, 2026* Exact fit and replacement for your factory part ### ⭐⭐⭐⭐⭐ Order a gasket too *by T***B on July 25, 2025* Fit nice, easy install, good temperature. Does not include gasket, I ordered a Fel-Pro ## Frequently Bought Together - AISIN THT-019 Engine Coolant Thermostat - Compatible with Select Lexus ES, HS, LS, RX, SC Scion tC, xB, xD Toyota 4Runner, Avalon, Camry, Corolla, Highlander, RAV4, Sienna, Tacoma, Tundra + More - AISIN THP-101 Engine Coolant Thermostat Housing Gasket - Compatible with Select Lexus ES, GS, IS, LS, RX Scion Toyota 4Runner, Camry, Corolla, Highlander, Prius, RAV4, Sienna, Tacoma, Tundra + More - AISIN WPT-803 New Engine Water Pump with Gaskets - Compatible with Select Lexus ES350, RX350, RX450h Toyota Camry, Highlander, RAV4, Sienna, Venza --- ## 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/157532446-tht-019-engine-coolant-thermostat-compatible-with-select-lexus-es](https://www.desertcart.co.uk/products/157532446-tht-019-engine-coolant-thermostat-compatible-with-select-lexus-es) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-27*