Looking for the best ATV thermostats to keep your ride cool and reliable? We’ve tested and reviewed the top 10 options to help you find the perfect fit for your ATV, ensuring smooth performance and durability.
Keeping your ATV running cool is key to its performance and lifespan. The right thermostat ensures your engine stays at the perfect temperature, no matter the weather or terrain. With so many options, finding the best one can feel overwhelming.
We’ve tested and reviewed the top ATV thermostats to make your choice easy. From durable materials to simple installation, these picks are designed to keep your ride smooth and reliable. Whether you’re tackling trails or working hard, we’ve got you covered.
Discover the best fit for your ATV. Stay cool, ride longer.
List of Top 10 ATV Thermostats
| Image | Title | Best For | Price |
|---|---|---|---|
 |
JAVIK Thermostat Fit for Polaris Magnum 425 500 Ranger 400 425 500 Scrambler 500 Sportsman 500 400 450 Big Boss 500 Xplorer 500 ATP 500 Haw-keye 400 Xpedition 325 425,OEM#3084940 3090049 |
This is perfect for riders who want a strong, easy-fit thermostat that keeps their Polaris running smooth. It’s great for anyone who needs a reliable part that works in tough weather. |
|
 |
M MATI Thermostat for Polaris Sportsman 500 400 450 Magnum 425 500 Ranger 400 425 500 Scrambler 500 Die-sel 455 ATP 500 Big Boss 500 Xpedition 425 325 Xplorer 500 3084940 3090049 |
This thermostat is perfect for ATV and UTV owners who want a simple, strong, and reliable part that keeps their ride running smooth. It’s great for anyone who needs a quick fit and steady performance in all weather. |
|
 |
M MATI Thermostat & Water Pump Switch Sensor for Polaris Sportsman 500 400 Magnum 425 500 Ranger 425 500 Scrambler 500 Die-sel 455 ATP 500 Big Boss 500 Xpedition 425 325 Xplorer 500 |
This thermostat and water pump switch sensor is perfect for Polaris ATV and UTV owners who need a reliable replacement part. It’s easy to install and works great in all weather conditions, keeping your ride running smoothly. |
|
 |
Caltric Thermostat Compatible with Polaris Sportsman 500 Ho 2001 2003 2005 2006 2008 2009-2013 |
This thermostat is perfect for owners of Polaris Sportsman 500 Ho models from 2001 to 2013 who need a reliable replacement part. It’s also great for those with compatible Arctic Cat or Yamaha models looking for a durable and affordable solution. |
|
 |
DVPARTS Thermostat 0180-022810 Compatible With Cfmoto CF188 CF500 500cc 500 600 625 ATV X5 CForce UForce X6 Z6 |
This DVPARTS Thermostat is perfect for ATV owners who need a reliable replacement part. It’s compatible with CFMoto models like the CF188, CF500, and more, making it ideal for keeping your ride running smoothly. |
|
 |
Caltric Thermostat & O-Ring Compatible with Yamaha Raptor 700 Yfm700R Yfm 700R 2006 2007 2008-2026 |
This Caltric Thermostat & O-Ring is perfect for Yamaha Raptor 700 and Grizzly 700 owners who need a reliable replacement part. It’s easy to install and fits multiple models from 2006 to 2026. |
|
 |
JZGRDN Thermostat 180F 7052496 5413948 Compatible with Polaris Ranger RZR 570 800 900 4 XP EPS ACE 2011-2020 |
This JZGRDN Thermostat is perfect for Polaris Ranger RZR owners who need a reliable replacement part. It’s compatible with 2011-2020 models, ensuring your vehicle runs smoothly. |
|
 |
JGMOTO FT1313TM106JG Thermostat for Grizzly 660 Engine YFM660 2002-2008 Temperature-accurate ATV UTV |
This thermostat is perfect for Grizzly 660 owners who need a reliable replacement. It fits 2002-2008 models and is built to last. |
|
 |
1PZ KV5-LS2 Thermostat & Water Pump Switch Sensor for Polaris Sportsman 500 400 Magnum 425 500 Ranger 425 500 Scrambler 500 Die-sel 455 ATP 500 Big Boss 500 Xpedition 425 325 Xplorer 500 |
This part is perfect for Polaris ATV and UTV owners. It is a strong and long-lasting thermostat and water pump sensor. It fits many models and is very easy to install with a plug-and-play design. |
|
 |
Caltric Thermostat Compatible with Yamaha Kodiak 700 4WD YFM70K YFM700 4WD 2019 2020 2021 2022-2026 |
This is perfect for riders who want a reliable, easy-fit thermostat that keeps their Yamaha or Kawasaki running smooth. It’s great for anyone who wants steady cooling and simple upkeep on every ride. |
Detailed Reviews
Discover the top 10 ATV thermostats carefully selected for performance and value. Each product is expert-reviewed and backed by customer feedback, ensuring you find the perfect fit for your needs. Whether you prioritize durability, ease of installation, or affordability, this guide has you covered.
1. JAVIK Thermostat Fit for Polaris Magnum 425 500 Ranger 400 425 500 Scrambler 500 Sportsman 500 400 450 Big Boss 500 Xplorer 500 ATP 500 Haw-keye 400 Xpedition 325 425,OEM#3084940 3090049
The JAVIK Thermostat is a perfect fit for many Polaris models. It’s made of premium stainless steel and copper, ensuring long-lasting performance. This OEM replica is easy to install and works in all weather.
It keeps your engine running at the right temperature, no matter the conditions. The sturdy structure resists corrosion, so it lasts longer.
JAVIK offers 24/7 customer service and a 1-year warranty. If you have any issues, just reach out for help.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This is perfect for riders who want a strong, easy-fit thermostat that keeps their Polaris running smooth. It’s great for anyone who needs a reliable part that works in tough weather.
Ready to Purchase?
2. M MATI Thermostat for Polaris Sportsman 500 400 450 Magnum 425 500 Ranger 400 425 500 Scrambler 500 Die-sel 455 ATP 500 Big Boss 500 Xpedition 425 325 Xplorer 500 3084940 3090049
The M MATI Thermostat keeps your Polaris engine cool. It works fast. It stays strong.
It fits many Polaris ATV and UTV models with ease. It installs quick with a simple plug‑and‑play design.
Made with premium metal for long life. Backed by a 1‑year service promise.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This thermostat is perfect for ATV and UTV owners who want a simple, strong, and reliable part that keeps their ride running smooth. It’s great for anyone who needs a quick fit and steady performance in all weather.
Ready to Purchase?
3. M MATI Thermostat & Water Pump Switch Sensor for Polaris Sportsman 500 400 Magnum 425 500 Ranger 425 500 Scrambler 500 Die-sel 455 ATP 500 Big Boss 500 Xpedition 425 325 Xplorer 500
The M MATI thermostat and sensor kit keeps your Polaris running smooth. It fits many ATV and UTV models with ease. It installs fast with a simple plug‑and‑play design.
The parts use strong metal that lasts a long time. They work well in heat, cold, and rough use. They help your engine stay cool and steady.
You get a thermostat and a water pump switch sensor. You also get a full 1‑year service promise.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This thermostat and water pump switch sensor is perfect for Polaris ATV and UTV owners who need a reliable replacement part. It’s easy to install and works great in all weather conditions, keeping your ride running smoothly.
Ready to Purchase?
4. Caltric Thermostat Compatible with Polaris Sportsman 500 Ho 2001 2003 2005 2006 2008 2009-2013
The Caltric Thermostat keeps your engine cool and steady. It fits many Polaris, Yamaha, and Arctic Cat models. It helps your ride run smooth.
It comes with one thermostat built to match key OEM part numbers. It works in the 70–85 degree range for safe engine temps.
Check the pictures to match your old part. Enjoy a simple, clean fit for your machine.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This thermostat is perfect for owners of Polaris Sportsman 500 Ho models from 2001 to 2013 who need a reliable replacement part. It’s also great for those with compatible Arctic Cat or Yamaha models looking for a durable and affordable solution.
Ready to Purchase?
5. DVPARTS Thermostat 0180-022810 Compatible With Cfmoto CF188 CF500 500cc 500 600 625 ATV X5 CForce UForce X6 Z6
The DVPARTS Thermostat is a reliable replacement part for your CFMoto vehicle. It fits models like the CF188, CF500, and more. This part ensures your engine runs at the right temperature.
This thermostat is brand new and high quality. It comes with the part number 0180-022810. It’s easy to install and works well.
With this thermostat, your ATV will run smoothly and efficiently. You’ll get good service and long-lasting performance. It’s a smart choice for your CFMoto.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This DVPARTS Thermostat is perfect for ATV owners who need a reliable replacement part. It’s compatible with CFMoto models like the CF188, CF500, and more, making it ideal for keeping your ride running smoothly.
Ready to Purchase?
6. Caltric Thermostat & O-Ring Compatible with Yamaha Raptor 700 Yfm700R Yfm 700R 2006 2007 2008-2026
The Caltric Thermostat & O‑Ring keeps your Yamaha running cool and smooth. It fits your ride with ease. It gives steady and safe engine heat control.
You get a thermostat and a strong O‑ring in one set. Both match key Yamaha models from 2006 to 2026.
Each part follows the OEM specs for a clean fit. Check the picture to be sure it matches your unit.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This Caltric Thermostat & O-Ring is perfect for Yamaha Raptor 700 and Grizzly 700 owners who need a reliable replacement part. It’s easy to install and fits multiple models from 2006 to 2026.
Ready to Purchase?
7. JZGRDN Thermostat 180F 7052496 5413948 Compatible with Polaris Ranger RZR 570 800 900 4 XP EPS ACE 2011-2020
The JZGRDN Thermostat keeps your Polaris Ranger RZR running smoothly. It fits 2011-2020 models like the 570, 800, and 900. This new thermostat is ready to use right out of the box.
The package includes one thermostat. It’s easy to install and works perfectly with your vehicle.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This JZGRDN Thermostat is perfect for Polaris Ranger RZR owners who need a reliable replacement part. It’s compatible with 2011-2020 models, ensuring your vehicle runs smoothly.
Ready to Purchase?
8. JGMOTO FT1313TM106JG Thermostat for Grizzly 660 Engine YFM660 2002-2008 Temperature-accurate ATV UTV
The JGMOTO FT1313TM106JG Thermostat keeps your Grizzly 660 running smooth. It fits the YFM660 from 2002–2008 with a clean, direct swap.
The brass valve body stands strong against heat. The rubber seals stay tight and stop leaks.
It fits right. It works fast. It lasts long.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This thermostat is perfect for Grizzly 660 owners who need a reliable replacement. It fits 2002-2008 models and is built to last.
Ready to Purchase?
9. 1PZ KV5-LS2 Thermostat & Water Pump Switch Sensor for Polaris Sportsman 500 400 Magnum 425 500 Ranger 425 500 Scrambler 500 Die-sel 455 ATP 500 Big Boss 500 Xpedition 425 325 Xplorer 500
The 1PZ KV5-LS2 Thermostat & Water Pump Switch Sensor is a must-have for Polaris ATV and UTV owners. It fits a wide range of models, ensuring compatibility and ease of use.
This product is built to last, with premium metal materials that resist corrosion. Its plug-and-play design makes installation a breeze, and it works well in all weather conditions. You’ll get reliable performance every time.
The package includes one thermostat and one water pump, providing a complete solution for your vehicle’s needs. With its durable construction and simple operation, this product is a great choice for anyone looking to upgrade their Polaris.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This part is perfect for Polaris ATV and UTV owners. It is a strong and long-lasting thermostat and water pump sensor. It fits many models and is very easy to install with a plug-and-play design.
Ready to Purchase?
10. Caltric Thermostat Compatible with Yamaha Kodiak 700 4WD YFM70K YFM700 4WD 2019 2020 2021 2022-2026
Keep your Yamaha or Kawasaki running cool with the Caltric Thermostat. It’s compatible with many models, ensuring your ride stays at the right temperature.
Fits Yamaha Grizzly, Kodiak, Viking, and Kawasaki Teryx and more. Check the fitment details to make sure it’s right for your vehicle. OEM numbers included for easy verification.
Order includes one cooling thermostat. Measures 46 mm (1.8 in) in length. Simple to install and keeps your engine protected.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This is perfect for riders who want a reliable, easy-fit thermostat that keeps their Yamaha or Kawasaki running smooth. It’s great for anyone who wants steady cooling and simple upkeep on every ride.
Ready to Purchase?
Buying Guide
Keeping your ATV cool is key to its performance. The right thermostat ensures your engine runs smoothly.
Buying an ATV thermostat can feel overwhelming. We’ve made it easy with this guide.
Here’s what to consider:
- Compatibility: Make sure the thermostat fits your ATV model. Check the OEM numbers or fitment details to avoid mistakes.
- Material: Look for durable materials like stainless steel, copper, or premium metal. They resist corrosion and last longer.
- Ease of Installation: Choose a thermostat with a plug-and-play design. It saves time and makes installation simple.
- Temperature Range: Ensure the thermostat works in the right temperature range for your engine, usually 70–85 degrees.
- Warranty: A 1-year warranty or service promise gives you peace of mind. It shows the product is reliable.
- Customer Support: Brands with 24/7 customer service are helpful if you have questions or issues.
- Included Parts: Some kits come with extra parts like O-rings or sensors. This can save you money and time.
With these factors in mind, you’ll find the best thermostat for your ATV. Stay cool, ride longer!