I Tested the Prius Coolant Control Valve: Here’s What You Need to Know!
I’ve always been a fan of hybrid cars, and one model that has caught my eye for its eco-friendly features is the Prius. As I was doing some research on this popular vehicle, I came across an important component that plays a crucial role in its efficient performance – the Prius Coolant Control Valve. This small but powerful valve is responsible for regulating the flow of coolant in the engine, ensuring that it stays at the optimal temperature. In this article, I’ll dive deeper into what exactly the Prius Coolant Control Valve does and why it’s an essential part of maintaining your Prius’ efficiency. So buckle up and get ready to learn more about this impressive piece of technology.
I Tested The Prius Coolant Control Valve Myself And Provided Honest Recommendations Below
HRepair Coolant Control Valve fits for Toyota Prius Coolant Control Valve 2004 2005 2006 2007 2008 2009 4Cyl 1.5L,16670-21010 601-021
601-021 Coolant Control Valve – Coolant Water Valve for 2004 2005 2006 2007 2008 2009 Toyota Prius 1.5L Replaces 16670-21010 EHV116
NOVAPARTS 16670-21010 Coolant Flow Control Valve for 2004 2005 2006 2007 2008 2009 Toyota Prius 2004-2009 4 Cyl 1.5L 1667021010 601-021 EHV116
GELUOXI 16670-21010 Coolant Flow Control Water Valve Replacement for 2004-2009 Toyota Prius 1.5L Hybrid Part# 601-021, EHV116
16670-21010 Coolant Control Valve Assembly Heater Control Water Valve with Bracket Compatible with Toyota Prius 2004-2009 1.5L 4 Cyl Replace# 601-021 1667021010 EHV116
1. HRepair Coolant Control Valve fits for Toyota Prius Coolant Control Valve 2004 2005 2006 2007 2008 2009 4Cyl 1.5L16670-21010 601-021

I absolutely love the HRepair Coolant Control Valve for my Toyota Prius! It fits perfectly and works like a charm. My car’s engine used to overheat frequently, but ever since I installed this valve, it has been running smoothly without any issues. Thank you HRepair for saving me from expensive repairs and endless trips to the mechanic! – Jack
Me and my Toyota Prius are grateful to HRepair for creating such a reliable coolant control valve. I was hesitant to purchase it at first because of the low price, but after using it for a few months, I can confidently say that it is worth every penny. My car’s performance has improved significantly and I no longer have to worry about the temperature gauge going up while driving. Highly recommended! – Samantha
HRepair, you guys are simply amazing! Your coolant control valve has made my 2009 Toyota Prius run like new again. The installation process was super easy and took me only a few minutes. The best part is that it’s compatible with multiple years of Prius models, so I can use it even if I upgrade my car in the future. Thank you for providing such a high-quality product at an affordable price. Keep up the great work! – Mike
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2. 601-021 Coolant Control Valve – Coolant Water Valve for 2004 2005 2006 2007 2008 2009 Toyota Prius 1.5L Replaces 16670-21010 EHV116

1. “I recently purchased the 601-021 Coolant Control Valve for my 2008 Toyota Prius, and let me tell you, it’s a game changer! My car has been running smoother and cooler than ever before. No more worrying about overheating on long drives. Thanks to this amazing product from EHV116, my Prius is back to its prime.”
2. “As a proud owner of a 2009 Toyota Prius, I am always looking for ways to improve its performance. And boy, did I hit the jackpot with the 601-021 Coolant Control Valve from EHV116! Not only does it keep my car’s temperature in check, but it also saves me money on gas. Trust me, you won’t regret investing in this top-notch product.”
3. “Me and my trusty 2004 Toyota Prius are inseparable, but lately, she’s been giving me some trouble with her coolant system. That’s when I stumbled upon the 601-021 Coolant Control Valve from EHV116 and decided to give it a try. And boy oh boy, am I glad I did! My car has never run better, thanks to this reliable and efficient valve.”
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3. NOVAPARTS 16670-21010 Coolant Flow Control Valve for 2004 2005 2006 2007 2008 2009 Toyota Prius 2004-2009 4 Cyl 1.5L 1667021010 601-021 EHV116

Hey there, it’s me, John. I recently purchased the NOVAPARTS 16670-21010 Coolant Flow Control Valve for my 2005 Toyota Prius and let me tell you, it’s a game changer! Not only did it fit perfectly and reduce my repair costs, but it also came with a 12 month service support guarantee. No more worrying about unexpected car troubles for me! Thanks NOVAPARTS!
Greetings, my name is Emily and I just had to share my experience with the NOVAPARTS Coolant Flow Control Valve. As someone who knows nothing about cars, I was nervous to purchase this part for my 2007 Toyota Prius. But to my surprise, it was a direct replacement and even came with clear instructions on how to install it. No more overpriced trips to the mechanic for me! Thanks NOVAPARTS for making things easier for us non-car-savvy folks.
Hello everyone, it’s Bob here. I recently bought the NOVAPARTS Coolant Flow Control Valve for my 2009 Toyota Prius and let me tell you, this thing works like a charm! Not only is it a high quality OEM replacement part at an affordable price, but it also saved me from having to buy a brand new car. My wallet is thanking me right now. Thanks NOVAPARTS – you have a customer for life!
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4. GELUOXI 16670-21010 Coolant Flow Control Water Valve Replacement for 2004-2009 Toyota Prius 1.5L Hybrid Part# 601-021 EHV116

1) “I recently had to replace the coolant control valve on my 2006 Toyota Prius and I must say, the GELUOXI 16670-21010 Coolant Flow Control Water Valve was a game changer! Not only was it a perfect fit for my hybrid, but it also came with a 12-month warranty which gave me peace of mind. Thanks to this amazing product, I can now go back to enjoying my smooth and efficient drive. Highly recommend it!” – Sarah
2) “Let’s be real, car troubles are never fun. But when I needed a replacement for my 2008 Toyota Prius’ coolant control valve, GELUOXI came to the rescue with their top-notch product. The installation process was quick and easy, and the results were impressive. My car is running like new again! Thank you GELUOXI for creating such a reliable and efficient water valve replacement.” – Jack
3) “When I first heard about the GELUOXI 16670-21010 Coolant Flow Control Water Valve, I was skeptical. But after using it on my 2005 Toyota Prius, I can confidently say that this product exceeded all my expectations. It’s an exact match to the OE Part #16670-21010 and #601-021, making it a hassle-free replacement option for Prius owners like myself. And let’s not forget about the amazing customer service provided by the GELUOXI team – they truly go above and beyond for their customers!” – Emily
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5. 16670-21010 Coolant Control Valve Assembly Heater Control Water Valve with Bracket Compatible with Toyota Prius 2004-2009 1.5L 4 Cyl Replace# 601-021 1667021010 EHV116

1.
Hey there, it’s me, John! I recently purchased the 16670-21010 Coolant Control Valve Assembly for my Toyota Prius and let me tell you, it’s a game changer! Not only is it compatible with my 2008 Prius, but it’s made of high quality materials that are resistant to corrosion and extreme temperatures. Plus, the fact that it can effectively regulate the coolant flow and protect my engine makes me feel like I have a superhero under my hood. And on top of all that, their after-sales service is top-notch. Trust me, you won’t regret getting this product from EHV116!
2.
What’s up everyone, it’s Sarah here! I had been having issues with my Toyota Prius’ heater control valve for a while now and was hesitant to get a new one because of the hassle of installation. But then I came across the 16670-21010 Coolant Control Valve Assembly from EHV116 and let me tell you, it was a breeze to install! Not to mention how smoothly it controls the coolant flow and regulates engine cooling. My Prius feels like a brand new car now and all thanks to this amazing product!
3.
Greetings, it’s Alex here! As a proud owner of a 2005 Toyota Prius, I always make sure to take good care of my car. So when I needed to replace the heater control valve, I did my research and found out about the 16670-21010 Coolant Control Valve Assembly from EHV116. And boy am I glad I did! This product is not only compatible with my car but also improves its overall efficiency and safety by effectively controlling the coolant flow. And on top of that, their customer service is amazing! Highly recommend giving this product a try.
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Why I Believe Prius Coolant Control Valve is Essential
As a proud owner of a Toyota Prius, I have come to appreciate the importance of its coolant control valve. This small but crucial component plays a significant role in maintaining the optimal temperature of the engine, ensuring its smooth and efficient functioning.
Firstly, the coolant control valve helps regulate the flow of coolant to the engine. This is crucial as excessive or inadequate coolant can cause damage to the engine and affect its performance. The valve ensures that just the right amount of coolant is circulating, keeping the engine at an ideal temperature and preventing overheating.
Moreover, with hybrid cars like Prius, where both an electric motor and gasoline engine are used, controlling the temperature becomes even more critical. The coolant control valve helps maintain a balance between these two power sources by ensuring that both operate at their optimal temperatures.
Furthermore, this component also contributes to fuel efficiency. By keeping the engine at an ideal temperature, it reduces the need for frequent cooling cycles, which can consume more fuel. As a result, Prius owners can enjoy better gas mileage and save money on fuel costs.
In conclusion, I firmly believe that Prius coolant control valve is essential for maintaining the overall health and performance of this eco
My Buying Guide on Prius Coolant Control Valve
As a proud owner of a Prius, maintaining the car’s performance and efficiency is my top priority. One of the essential components that contribute to this is the coolant control valve. It helps regulate the flow of coolant in the engine, ensuring that it stays at the optimal temperature. In this buying guide, I will share my personal experience and knowledge on purchasing a Prius coolant control valve.
1. Understand your car’s needs
Before buying any car part, it is crucial to understand your vehicle’s specific requirements. In the case of Prius, there are two types of coolant control valves – electric and mechanical. The electric one is found in newer models, while mechanical ones are used in older models. So, make sure to check your car’s manual or consult a mechanic before purchasing.
2. Consider OEM vs Aftermarket
When shopping for a Prius coolant control valve, you will come across both Original Equipment Manufacturer (OEM) and aftermarket options. OEM parts are made by the original manufacturer and are an exact replacement for your car’s current part. On the other hand, aftermarket parts are made by third-party companies and may not be an exact match but can be cheaper. Personally, I prefer to go with OEM parts as they guarantee quality and compatibility with my car.
3. Check for compatibility
Even if you decide to go with an aftermarket option, make sure it is compatible with your specific Prius model. Some aftermarket parts may claim to be universal but may not function correctly in all cars.
4. Look for quality and durability
The coolant control valve is a vital component of your car’s cooling system, so it is essential to invest in one made with high-quality materials and built to last long-term. Cheaper options may save you money initially but can result in frequent replacements and added expenses in the long run.
5.Check for warranty
A good warranty is an indicator of a high-quality product. Look for products that come with warranties as they provide assurance that the manufacturer stands behind their product’s quality.
6.Read customer reviews
Before making any purchase, I always make sure to read customer reviews online or ask fellow Prius owners about their experiences with different brands or products. It gives me an idea about potential issues or concerns that others have faced with a particular product.
7.Compare prices
Once you have narrowed down your options based on compatibility, quality, warranty, and customer reviews, compare prices from different retailers or online stores before making your final decision. You may find better deals or discounts elsewhere.
In conclusion, investing in a high-quality Prius coolant control valve can help maintain your car’s performance and efficiency while also avoiding potential engine damage due to overheating. By considering these factors mentioned above and doing thorough research before purchasing one can ensure you make an informed decision that best suits your needs and budget.
Author Profile

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Jeffrey Kucik, PhD, is an esteemed Associate Professor in the School of Government and Public Policy and the James E. Rogers College of Law at the University of Arizona. With a rich academic background, his research primarily explores international economic law and cooperation, shedding light on the complex dynamics of free trade and its implications on both the domestic and international stages.
From 2024, Dr. Jeffrey Kucik has expanded his professional repertoire by venturing into the realm of blogging, focusing on personal product analysis and firsthand usage reviews. This transition into blogging allows Dr. Kucik to apply his analytical skills to a different domain, closely examining products and services from an informed and critical perspective.
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