---
product_id: 50274225
title: "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"
brand: "aisin"
price: "1082775₫"
currency: VND
in_stock: true
reviews_count: 8
category: "Aisin"
url: https://www.desertcart.vn/products/50274225-aisin-tht-015-engine-coolant-thermostat-compatible-with-select-lexus
store_origin: VN
region: Vietnam
---

# Durable, high-quality materials Perfect OE form, fit & function Precise OE temperature control 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

**Brand:** aisin
**Price:** 1082775₫
**Availability:** ✅ In Stock

## Summary

> 🌟 Keep your engine cool, your ride elite, and your status undeniable.

## Quick Answers

- **What is this?** 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 by aisin
- **How much does it cost?** 1082775₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/50274225-aisin-tht-015-engine-coolant-thermostat-compatible-with-select-lexus)

## 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

- • **Built to Last:** Crafted from premium materials to deliver long-lasting reliability and dependable cooling system performance.
- • **Trusted by Pros:** AISIN’s legacy since 1965 means you’re installing a thermostat backed by decades of automotive excellence.
- • **Wide Compatibility:** Fits select Lexus and Toyota models, making it the go-to upgrade for your luxury or rugged ride.
- • **Seamless OE Integration:** Designed with superior OE technology ensuring flawless fit and function—no compromises, no guesswork.
- • **Consistent Cooling Mastery:** Engineered to maintain exact OE specified operating temperature for optimal engine performance.

## Overview

The AISIN THT-015 Engine Coolant Thermostat is an OE-matched, precision-engineered component designed to maintain exact factory-specified operating temperatures. Manufactured with premium materials and superior technology, it ensures perfect fit, form, and function for select Lexus and Toyota models, delivering reliable, consistent cooling performance that professionals trust.

## Description

Product 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. Set Contains: Thermostat

Review: Aisin Quality - From the original part manufacturer Aisin. You really can't go wrong with quick shipping from desertcart either. Grade buy!
Review: Worth it to get Aisin *doesn't include gasket - 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 desertcart, and it's been a great investment. Has helped me solve several issues.

## 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: 1998-00 GS400, 2001-07 GS430, 2003-09 GX470, 1998-00 LS400, 2001-06 LS430, 1996-97 LX450, 1998-07 LX470
- Compatible with (continued): LEXUS: 1998-00 SC400, 2002-10 SC430; TOYOTA: 2003-09 4Runner, 1993-07 Land Cruiser, 2001-09 Sequoia, 2000-09 Tundra

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01LZVUYEZ |
| Best Sellers Rank | #36,314 in Automotive ( See Top 100 in Automotive ) #37 in Automotive Replacement Engine Thermostats |
| Brand | AISIN |
| Customer Reviews | 4.6 4.6 out of 5 stars (263) |
| Date First Available | September 22, 2016 |
| Exterior | Machined |
| Item Weight | 6 ounces |
| Item model number | THT-015 |
| Manufacturer | AISIN |
| Manufacturer Part Number | THT-015 |
| Model | AISIN |
| OEM Part Number | 90916-03100 |
| Position | Center |
| Product Dimensions | 3 x 3 x 2.8 inches |

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/816hpM3IRgL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Aisin Quality
*by T***T on December 3, 2025*

From the original part manufacturer Aisin. You really can't go wrong with quick shipping from Amazon either. Grade buy!

### ⭐⭐⭐⭐⭐ Worth it to get Aisin *doesn't include gasket
*by B***D on November 11, 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.

### ⭐⭐⭐⭐⭐ OEM quality but don’t come with gasket!
*by S***Y on June 24, 2025*

Fits like OEM. Don’t forget to buy gasket! You must buy separately,,,, that part stinks.

## 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

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-02-18*