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Item #:
16866522
AISIN GENUINE THT-004 Engine Coolant Thermostat with Housing and Gasket - Compatible with Select Lexus GS300, GS350, GS450h, IS250, IS300, IS350,
90% of respondents would recommend this to a friend
Item #:
16866522
SGD 61
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
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In stock
Imported from USA store
QTY:
Order now and get it around Saturday, November 14
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What Stands Out
Complete Assembly
This engine coolant thermostat includes housing and gasket, providing a complete solution for easy installation, eliminating the hassle of sourcing separate components.
Optimal Compatibility
Engineered specifically for select Lexus models, ensuring perfect fit and reliable performance, reducing the risk of overheating and ensuring engine efficiency.
Quality Assurance
Manufactured with high-quality materials to withstand extreme temperatures, guaranteeing longevity and consistent performance compared to competitors, enhancing vehicle reliability.
Product Details
| Country of Origin | This item will be imported from US |
Product Technical Details
| Manufacturer | AISIN |
| Brand | AISIN |
| Model | AISIN |
| Item Weight | 7 ounces |
| Product Dimensions | 4.1 x 4.1 x 3.7 inches |
| Item model number | THT-004 |
| Exterior | Machined |
| Manufacturer Part Number | THT-004 |
| OEM Part Number | 16031-31020 |
| Mirror Adjustment | Button Control |
| Position | Center |
What's in the box
AISIN THT-004-Engine Coolant Thermostat
Who Should Buy?
-
Lexus Owners
Ideal replacement for owners of compatible Lexus models to ensure optimal engine temperature regulation.
-
DIY Mechanics
Perfect for home mechanics looking to perform their own maintenance with a reliable thermostat and housing kit.
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Preventative Maintenance
Useful for drivers aiming to prevent overheating issues by proactively replacing old thermostats in their vehicles.
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Non-Lexus Vehicles
Not suitable for vehicles outside the specified compatible Lexus models, limiting its usability.
Product Description
Have any Query? Chat with us
Customer Questions & Answers
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Question:
How to Shop AISIN GENUINE THT-004 Engine Coolant Thermostat with Online From Ubuy?
Answer: It’s easy to shop AISIN GENUINE THT-004 Engine Coolant Thermostat with online from Ubuy. You just have to search for the product, choose your shipping method while checking out and get it delivered to your location. -
Question:
Is AISIN GENUINE THT-004 Engine Coolant Thermostat with Available to Shop Online in Singapore?
Answer: Yes, at Ubuy Singapore this product is available for you to shop at a reasonable price. The AISIN GENUINE THT-004 Engine Coolant Thermostat with is not available locally but you can trust us with our express shipping services. -
Question:
How Long Does It Take to Get Product After Placing the Order?
Answer: The delivery time of your ordered product varies as per what you've ordered and the shipping method that you've chosen. The estimated delivery time is mentioned during the checkout process, so be carefree while shopping.
AISIN Thermostats THT-004 Editorial Review
AISIN GENUINE THT-004 Engine Coolant Thermostat with Housing and Gasket - Compatible with Select Lexus GS300, GS350, GS450h, IS250, IS300, IS350, RC300, RC350 is a reliable OEM part that offers perfect fit and function for various Lexus models. Customers appreciate the effectiveness of this thermostat, noting that it restores proper temperature control, as seen in reviews highlighting how it resolved stuck open thermostat issues in older models. Users noted that it matches the original part closely, reinforcing trust in AISIN's quality as an OEM supplier. It's essential to handle the installation carefully, as mentioned in one review, and to follow recommended torque specifications to avoid potential issues.
Customer Reviews & Ratings
155 customers ratings
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5 Star
80%
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4 Star
11%
-
3 Star
2%
-
2 Star
4%
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1 Star
3%
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Pros
- OEM quality ensures reliable temperature regulation
- Fits various Lexus models perfectly
- Easy installation with proper guidelines
- Minimal risk of leaks reported
- Trusted brand known for durability
Cons
- Installation may require some creativity to access parts
Platform Trust & Buyer Confidence
FK
Fatuma
Verified buyer
“My experience was great I really liked the fact that i get my order delivered within the days promised. The packaging , the product, shipment everything was so good, trustworthy and fast. Definitely will shop again”
28 October 2026 · via Trustpilot
JC
Jane
Verified buyer
“Very easy to order. The product was good quality. The delivery service was excellent, updates given so you knew what was happening.”
30 October 2026 · via Trustpilot
R
Roman
Verified buyer
“Good experience The product I ordered came as expected. What most impressed me in dealing with Ubuy is the communication and updates I received through the process. I knew exactly where and when my item was at all times until delivery. Well done!”
31 October 2026 · via Trustpilot
SH
SJ Hong
Verified buyer
“The package came very quickly and the shipping fee was extremely reasonable! Overall, the service as well as my experience of ordering from Ubuy was a very pleasant experience! Thank you so much!”
31 October 2026 · via Trustpilot
SH
Szilvia
Verified buyer
“Great service. Ordered an item coming from the USA which wasn't available in Ireland or even for delivery from the retailer and it had arrived within a few days. Very happy with the product and the service.”
31 October 2026 · via Trustpilot
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SGD 61
Order now and get it around Saturday, November 14
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
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