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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
NZD 78
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.
-
Preventative Maintenance
Useful for drivers aiming to prevent overheating issues by proactively replacing old thermostats in their vehicles.
-
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 New Zealand?
Answer: Yes, at Ubuy New Zealand 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
-
5 Star
80%
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4 Star
11%
-
3 Star
2%
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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
DS
David
Verified buyer
“Great items and service thankyou AAA +”
08 October 2026 · via Trustpilot
JS
Jonathan
Verified buyer
“Good service and quick delivery. Would use them again.”
09 October 2026 · via Trustpilot
K
Kandi
Verified buyer
“Very pleased customer I have been looking for certain products for years! I finally found them here :) Awesome service, fast delivery, everything was safely wrapped and delivered!. Over all I'm very happy with the product and the speedy service received. Great job U-Buy”
14 October 2026 · via Trustpilot
MD
Manfred
Verified buyer
“It's a hassle-free service. Thank you very much.”
22 October 2026 · via Trustpilot
MT
Michelle
Verified buyer
“Great product, great price and great delivery! We were able to find a hard to get item at a great price and delivered quite quickly considering it was coming from overseas. ”
31 October 2026 · via Trustpilot
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- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
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NZD 78
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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