Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 8 - Jul 13
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Hybrid Racing K-Series Low Temp ThermostatHybrid Racing knows the advantages of using a low temperature thermostat in high performance or race environments are evident. Opening the thermostat's valve at a lower temperature allows coolant to flow more freely during low load sections of the racetrack. This enables the radiator to effectively regulate the engine's temperature within the optimal range during high load sections. If a cooling system is pushed to its limits at the racetrack and
Hybrid Racing knows the advantages of using a low-temperature thermostat in high-performance or race environments are evident. Opening the thermostat's valve at a lower temperature allows coolant to flow more freely during low-load sections of the racetrack. This enables the radiator to effectively regulate the engine's temperature within the optimal range during high-load sections. If a cooling system is pushed to its limits at the racetrack and overheating becomes an issue, a low-temperature thermostat can often resolve this problem. It achieves this by allowing the radiator to perform more cooling at lower engine loads, thereby preventing or delaying overheating during high-engine loads.
Low-temperature thermostats offer several advantages and are useful in various situations. Here are some key reasons why they are beneficial:
- Enhanced Engine Cooling: Low-temperature thermostats allow coolant to flow more freely at lower temperatures, improving the cooling efficiency of the engine. By opening the thermostat's valve at a lower temperature, they help maintain the engine within the optimal temperature range during high-load conditions. This can prevent overheating and ensure consistent performance, especially in demanding situations like racing or high-performance driving.
- Prevention of Temperature Hunting: Low-quality thermostats can cause temperature hunting, characterized by erratic fluctuations in coolant temperature. In contrast, low-temperature thermostats are designed to prevent hunting by controlling the flow of coolant more effectively. This stability in temperature helps avoid issues such as cracked cylinder heads and reduces strain on the cooling system.
- Improved Durability: High-quality, low-temperature thermostats, like those offered by Nippon Thermostat Co. Ltd in the provided context, undergo extensive durability testing. This testing includes heating and cooling cycles, vibration testing, and real-world testing in both road and race cars. As a result, these thermostats are built to withstand demanding conditions and have superior durability, reducing the risk of failure and ensuring long-lasting performance.
- Customizable Cooling Systems: Low-temp thermostats offer the flexibility to fine-tune the engine's cooling system. They allow for better control over coolant flow and temperature regulation, enabling enthusiasts and engineers to optimize cooling performance according to specific needs and preferences. This customization can be particularly valuable in racing, where precise cooling management is critical for maintaining optimal engine performance.
Overall, low-temperature thermostats provide improved engine cooling, prevent temperature hunting, offer durability, and allow for customizable cooling systems. These advantages make them a valuable component, especially in high-performance applications where maintaining optimal temperatures is crucial for engine performance and longevity.
Hybrid Racing's HYPERCOOL thermostats are produced by an OEM supplier that has been in existence since 1954; Their thermostats are used in over 50% of cars manufactured in Japan and are widely utilized in motorsports events such as Le Mans and WRC. The durability of thermostats is crucial, especially considering the potential consequences of a malfunctioning thermostat and subsequent engine overheating. To ensure durability, we conduct rigorous testing on their low-temperature thermostats, including various cycles of heating and cooling, vibration testing, engine bench testing, as well as real-world testing in both road cars and race cars.
Features
- Ideal for racing cars
- Reduces temp hunting
- OEM Quality Made in Japan
- Fully open @ 68*C/154.4*F
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.9 ★★★★★
Based on 88 reviews
Sort
Product Reviews
★★★★★ 5
Recommended
Size: (Pack of 1)
This Wix air filter was a perfect fit for my vehicle and a great quality product. I highly recommend this Wix cabin air filter to anyone looking for a reliable and effective replacement.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 4, 2024
★★★★★ 5
Much thicker filter (more surface area), should filter better
Size: (Pack of 1), Size: (Pack of 1)
First filter change at about 28000 miles. Original filter was pretty dirty but OK on intake side.
WIX filter is quite a bit thicker but fits my 2016 RAM 5.7L Hemi fine. Also cleaned out the bottom side of the air filter box.
The WIX filter is much cheaper than the Mopar and seems to have a similar construction but is much thicker. Assuming the filter media is the same, the WIX should in theory filter and breathe better (more surface area) - but I am no expert so.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 14, 2021
★★★★★ 5
Good quality.
Size: 15"+15"+13"
I needed to replace the wiper blades on my Jeep Wrangler JK, so I first went to a local auto parts store. The prices were pretty expensive, and they didn’t even have the correct replacement for my rear wiper blade.
That’s when I decided to order the UTOBOO 15"+15" Windshield Wipers with 13 Inch Rear Wiper Blade Replacement online, and I’m really glad I did.
The set arrived quickly and included everything I needed for both the front and rear wipers. Installation was very easy and only took a few minutes. They fit well on my Jeep, and the blades feel sturdy and made from good-quality materials.
After using them, they wipe smoothly and leave the windshield clean without streaks, which is exactly what you want, especially in rain or dusty conditions.
Overall, this is a great value compared to buying individual blades in-store, and it’s especially convenient since it includes the rear wiper replacement too. I would definitely recommend these to other Jeep Wrangler owners looking for an affordable and reliable option.
------Tip, don't forget to take off the green plastic, If you check the comments many people argues that the wipers don't work but in the pictures you can see they did not take off the green plastic protector. ----
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 12, 2026
★★★★★ 5
Love
Size: 26+20+14"
I recently purchased the AUTOBOO 26” + 20” windshield wipers with the 14” rear blade, and I’m honestly very happy with them. Installation was quick and straightforward, even without much experience changing wipers. They fit perfectly on my car and clicked into place securely.
The wiping performance is smooth and quiet, with no streaks or squeaking, even during heavy rain. I also noticed they clear water evenly across the windshield, which makes driving feel much safer, especially at night or on the highway.
The rear 14” blade works just as well and was a nice bonus since it’s sometimes harder to find a good rear wiper included in a set.
Overall, this set offers great value for the price, and I would definitely buy them again and recommend them to anyone looking for reliable, easy-to-install windshield wipers.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 22, 2026
★★★★★ 5
Decent wipers for a great price
Size: 28+28+11
These fit my daughters Ford Escape perfectly and the day after installation, it rained. The wipers work really well and the windshield is now streak free once again and the price was right. Easy to change and look good.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026