Top 14 Radiator Pressure Cap Reviews & Top Picks

Aug-23-2023 by Cam

Radiator Cap, Replace 16401-31480, 1640131480 Compatible with Toyota - 4Runner Avalon Camry FJ Cruiser Highlander Sequoia Sienna Tacoma Tundra Venza Yaris, ES350 GS300 GS430 GX460 RX350 SC430, More

  • REPLACEMENT RADIATOR CAP : The radiator cap holds the coolant inside the radiator, but it also works as a two-way valve that keeps the right pressure inside so the radiator does it work correctly. If the pressure isn't maintained, the coolant can boil and evaporate, putting the engine at risk of overheating. Symptoms of a Bad Radiator Cap: air enters the system, low coolant level, coolant leaks, overflowing reservoir, overheating engine..
  • COMPATIBLE WITH TOYOTA, SCION VEHICLES : 2009-2016 4Runner | 2009-2012 Avalon | 2002-2006, 2009-2012 Camry | 2009-2014 FJ Cruiser | 2008-2013 Highlander | 2008-2017 Sequoia | 2007-2016 Sienna | 2008 Solara | 2009-2016 Tacoma | 2010-2017 Tundra | 2009-2013 Venza | 2009-2014 Yaris | 2012-2015 Scion iQ | 2009-2012 Scion xD radiator cap. Please check the detailed description before purchase. Thank you!.
  • REPLACES PART # : 16401-31480, 1640131480, 16401-46610, 1640146610 radiator cap. The radiator cap can compatible with: 2007-2012 ES350 | 2006 GS300 | 2006-2007 GS430 | 2010-2013 GX460 | 2010 HS250h | 2005 IS300 | 2005-2006 LS430 | 2007-2015 RX350 | 2010-2011 RX450h | 2005-2010 SC430. Once you have a replacement and your engine is cool, simply unscrew the old cap, and install the new by screwing it on..
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AiCooler Radiator Safety High-Pressure Temperature Gauge Cap Compatible with select BETA, HUSABER, KTMs(19XX-2016), and most Western Motorcycles 1.8Kg/cm2 (25.6PSI) Model: MW1RB Royal Blue MW1-RB

  • (PROMISE)If our AiCooler Radiator Cap fails on your motorcycle, please be free to contact us for a replacement. Also if you have any other questions on AiCooler 1.8 high pressure radiator cap, please contact us at the first time. This is NOT a OEM/ genuine part, the Radiator Cap is a modified replacement part manufactured by AiCooler with our design Patent!.
  • High-pressure 1.8 Bar radiator cap with a temperature gauge. Cap reads both Celsius and Fahrenheit with 32-400 degree F range and 0-200 degree C range..
  • Providing an accurate temperature reading of your coolant/water. Ensure riding safety by keeping an eye on your machine's temperature..
  • Designed to handle increased water pressure and temperatures. Actually compatible with most KTM from 19XX until 2016 If it doesn't fit please send it back for a full refund and try another model: MAJ1-B, it should fit then!.
  • Upgrade your European and/ American bikes standard OEM Radiator Cap: compatible with most models of select BETA, HUSABERG, some HUSQVARNA Series, compatible with KTM( 19XX-2016 ), Husqvarna, and most Western Motorcycles, Dirt Bikes, ATVs, UTVs, and more..
  • Included components: Radiator Safety High Pressure Cap.
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Goplus 28-Piece Universal Radiator Pressure Tester, Vacuum Type Cooling System Tool Kit w/Carrying Case (Red Case)

  • Color Coded Caps: Color coded radiator test caps aid with identifying which cap is needed for each application, so it’s easy for you to choose the suitable test cap for the job without messy..
  • Universal Use with 17 Test Caps: Equipped with 17 test caps for testing cooling systems on most domestic and import vehicles. VW, BMW, Ford, Opel, Porsche is compatible with our Radiator Pressure Tester. Working pressure is from 0 to 35 psi. It will be a good helper in your daily life..
  • Blow Molded Case: Equipped with a bold molded case, which keeps your kit organized, providing you a convenient way to tester. Besides, with the case, you could easily bring this radiator pressure tester set to anywhere you needed..
  • Easy to Use: Special design of vacuum purge and refill tool connection allows easy testing for leakage in radiator system and quick change of coolant. With this pressure tester, you could easily do the job..
  • 28 PCS Radiator Pressure Tester: Comes with various instruments, which help you solve any problem about radiator pressure conveniently and quickly..
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FEXON Fan Clutch Nut Wrench Compatible with BMW E34 E46 E90 E39 E36 Clutch Removal Tool Kit Replaces 70074 Fan Clutch Wrench Set 32mm

  • ...ter in the tank will leak out under pressure, shows the fracture position, such as the tank, hose, a loose connection, etc. Check regularly, repair promptly, avoid leak result in the reduction of coolant and boiling point, cause high engine temperature, low oil viscosity and other serious problem.
  • Specification: The radiator pressure test tool uses aluminum pump cylinder rather than plastic one, 21.2" rubber nylon resin hoses, brass fittings, solid and durable. 3" large dial gauge with index range 0 to 35psi (0 to 2.5bar), easy to observe. Chrome plated brass quick coupler with relief valve, can be connected to radiator adapters easily and quickly..
  • Easy To Use: Remove the original radiator cap, choose an available radiator cap from the test kit and install it on radiator opening. Work the handpump till the pressure up to 10-15psi (Avoid up to 35psi). Check the gauge reading, if the reading drops automatically, it means that the leakage might occur in radiator. Please inspect the radiator system and repair it if necessary. Normally, it takes around 10mins to test leak, very easy and fast to operate..
  • Wide Application: Coolant system leak checker tool set is equipped with 12 specific aluminum adapters, solid and durable, widely compatible for Cadillac, B....
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DASBET 18PCS Radiator Pressure Leakage Tester Tool Kit, Automotive Cooling System Water Tank Leak Test Detector Set with Hand Pump and Nylon Adapters

  • Hand Pump Leak Detector: The radiator pressure test tool uses aluminum pump cylinder rather than plastic one, 21.2" rubber nylon resin hoses, brass fittings, solid and durable. 3" large dial gauge with index range 0 to 35psi (0 to 2.5bar), easy to observe. Chrome plated brass quick coupler with relief valve, can be connected to radiator adapters easily and quickly..
  • Leak Detection Tool: The hand pump leak detection tool pressurize on the reservoir, and watch for pointer drop over time to confirm system leak down. If there is any crack in the cooling system, the water in the tank will leak out under pressure, shows the fracture position, such as the tank, hose, a loose connection, etc. Check regularly, repair promptly, avoid leak result in the reduction of coolant and boiling point, cause high engine temperature, low oil viscosity and other serious problem.
  • Easy To Use: Remove the original radiator cap, choose an available radiator cap from the test kit and install it on radiator opening. Work the handpump till the pressure up to 10-15psi (Avoid up to 35psi). Check the gauge reading, if the reading drops automatically, it means that the leakage might o....
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Goplus 28-Piece Universal Radiator Pressure Tester, Vacuum Type Cooling System Tool Kit w/Carrying Case (Blue Case)

  • ⚒️ Color Coded Caps: Color coded radiator test caps aid with identifying which cap is needed for each application, so it’s easy for you to choose the suitable test cap for the job without messy..
  • ⚒️ Universal Use with 17 Test Caps: Equipped with 17 test caps for testing cooling systems on most domestic and import vehicles, such as VW, BMW, Ford, Opel, Porsche, Audi, etc. Working pressure is from 0 to 35 psi. It will be a good helper in your daily life..
  • ⚒️ Blow Molded Case: Equipped with a bold molded case, which keeps your kit organized, providing you a convenient way to tester. Besides, with the case, you could easily bring this radiator pressure tester set to anywhere you needed..
  • ⚒️ Easy to Use: Special design of vacuum purge and refill tool connection allows easy testing for leakage in radiator system and quick change of coolant. With this pressure tester, you could easily do the job..
  • ⚒️ 28 PCS Radiator Pressure Tester: Comes with various instruments, which help you solve any problem about radiator pressure conveniently and quickly..
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Radiator Pressure Tester Vacuum Refill Tool Kit - 28PCS Coolant System Leak Tester and Pneumatic Purge Fill Set with Adapter Refill for Vehicle

  • ...ly fills coolant and eliminates air pockets under vacuum to avoid engine distortion or other damaged.Thermometer to check if coolant temperature is too high.All in 1,more choices!.
  • 【Wide Applications】Cooling system pressure tester is equipped with 17 specific adapters and 1 universal tapered rubber adapter and 3 radiator cap test adapters and 2 connectors, compatible with most of domestic & imported vehicles and works on 99% of the coolant systems.Color code radiator tests caps make it easy to choose the suitable tests cap for the job of messy.A fascinating gift for car lovers and a useful set of tools for families..
  • 【Value for Money】Plastic covered premium brass manifold body, equipped with brass fittings, anti-corrosive and wearproof. 3" large dial gauge with index range 0 to 35psi (0 to 2.5bar), easy to observe, and normally -25 to -20inHg is right time to add coolant. 24" rubber resin material weave reinforced hose, featured with anti-corrosion, low fluid resistance, high bearing pressure, ensure durability and good air sealing.Stainless steel thermometer with index ranged 32 to 400℉..
  • 【Easy to Operate】--Connect the correct adapter cap to the radiator coolant pressure test manual air pump, pressurize the cooling system, and observe the....
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Bar's Leaks Cooling System Radiator Stop Leak 16.9 oz.

  • ...ign and polished surface treatment, the repeatedly polished surface is not easy to stain and smooth. The blue logo on the black lid is more conspicuous and more fashionable..
  • ❤[Install]Just unscrew the old cover and tighten the new cover to install, you can perfectly replace the original parts. Before removing the radiator cap, make sure that the engine has cooled down, because removing the radiator cap from the cooling system may cause sudden injection of coolant. And severe burns..
  • ❤[High Quality]It is manufactured by the OE manufacturer according to strict OE specifications and is 100% inspected before leaving the factory to ensure product safety, stability and durability. It has been carefully designed for the outdoor cooling system and overflow box system to provide the same components and functions as the original version of the specific car..
  • ❤[Quality Material]Coolant recovery bottle cap is made of high-quality ABS material, with excellent comprehensive physical and mechanical properties, good low-temperature impact resistance, air tightness, very durable, long service life, and can isolate the upper and lower spaces. The radiator cap keeps the coolant inside the radiator, but can also be used as a two-way valve to maintain the correct pre....
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28-Piece Universal Radiator Pressure Tester, Vacuum Type Cooling System Tool Kit For Many Makes and Models with Carrying Case (Blue Case)

  • ⚒️Color Coded Caps: Color coded Auto radiator test caps aid with identifying which cap is needed for each application, so it?s easy for you to choose the suitable test cap for the job without messy..
  • ⚒️Universal Use with 17 Test Caps: Equipped with 17 test caps for testing cooling systems on most domestic and import vehicles, such as VW, BMW, Ford, Opel, Porsche, Audi, etc. Working pressure is from 0 to 35 psi. It will be a good helper in your daily life..
  • ⚒️Blow Molded Case: Equipped with a bold molded case, which keeps your kit organized, providing you a convenient way to tester. Besides, with the case, you could easily bring this radiator pressure tester set to anywhere you needed..
  • ⚒️Easy to Use: Special design of vacuum purge and refill tool connection allows easy testing for leakage in radiator system and quick change of coolant. With this pressure tester, you could easily do the job without leaks.
  • ⚒️28 PCS Radiator Pressure Tester: Comes with various instruments, which help you solve any problem about radiator pressure conveniently and quickly..
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YSTOOL Radiator Pressure Tester Coolant Vacuum Refill Kit 28PCS Automotive Cooling System Leak Test Pneumatic Water Tank Purge Fill Tool Set with Gauge Adapter Cap Universal for Auto Car Airlift

  • Three-in-one cooling system tool kit has 3 excellent functions: coolant pressure tester, coolant refilling & temperature measurement. Manual pump cooling system pressure tester can diagnose whether the radiator is leaking and help quickly bleed the waste coolant if needed. Pneumatic vacuum fill coolant tool vacuumizes to eliminate trapped air in minutes and refills cooling system with no air bubbles produced. Thermometer checks if the coolant temperature is too high. Fit for home & business.
  • 28PCS universal radiator tester pressure leak test set includes 17 color-coded radiator test adapter caps and a universal rubber cone adapter for almost all radiator openings on most vehicles at home and abroad. Another 3 radiator cap adapters and 2 connectors for radiator cap leak detection. All are well positioned in the case, complete in specifications and easy to assemble. Widely compatible with GM, BMW, VW, GMC, Porsche, Chevy, Dodge, JEEP, Chrysler and many other model car, truck & airlift.
  • Radiator manual pump pressure detector adopts premium aluminum cylinder and accurate shock-proof gauge design (3'' color-coded dial, 0-35PSI/ 0-2.5bar). Vacuum type coolant refiller takes reliable brass and plastic material. 21" & 18'' rubber hose with brass parts, anti-co....
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8MILELAKE 18pcs Radiator Pump Pressure Tester and Vacuum Pump Type Cooling System Kit Coolant Pressure Tester Kit

  • This radiator pressure tester helps find internal and external leaks in your cooling system..
  • 8 radiator cap adapters included, and the test range is from 0 to 35 psi, ideal for domestic and import vehicles. With the special design of purge and refill tool connection, it fits nearly all type of radiator openings..
  • The Coolant Pressure Tester Kit Included a Pump with gauge For testing automotive pressurized cooling systems up to 35 PSI Has 8 radiator cap adapters for servicing most domestic and import vehicles..
  • Large volume pump capacity reduces strokes required to pressurize cooling systems Self-locking quick-disconnect components Thumb-operated relief valve for convenient pressure release..
  • Package includes: 17pc kit set and Carrying Case. This tool is made of high quality aluminum, rubber and plastic, high strength and good toughness.
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WINTOOLS 18pcs Auto Cooling System Radiator Cap Pressure Tester Kit Pump Gauge Adapters

  • This product is not fit all types of cars, please check it..
  • This radiator pressure tester helps find internal and external leaks in your cooling system..
  • 8 radiator cap adapters included, and the test range is from 0 to 35 psi, ideal for domestic and import vehicles. With the special design of purge and refill tool connection, it fits nearly all type of radiator openings..
  • Included a Pump with gauge For testing automotive pressurized cooling systems up to 35 PSI Has 8 radiator cap adapters for servicing most domestic and import vehicles..
  • Large volume pump capacity reduces strokes required to pressurize cooling systems Self-locking quick-disconnect components Thumb-operated relief valve for convenient pressure release.
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Outlaw Racing High-Pressure Temperature Gauge Radiator Cap 1.8 Real-Time Temp Monitoring Prevent Motorcycle/ATV Leaks Compatible with Yamaha Honda Suzuki Kawasaki

  • ✅ Outlaw's high-pressure radiator cap will help solve recurring boil over problems on most street & dirt bikes, by raising your boiling point by 25+ degrees while providing an accurate temperature reading of your coolant..
  • ✅ This 2 in 1 solution combines a high-pressure radiator cap with a temperature gauge..
  • ✅ Aluminum cap with an anodized finish that reads Celsius and Fahrenheit with 32-400 Fahrenheit range.
  • ✅ This direct replacement for your stock radiator cap is easy to install on most 2- and 4-stroke Japanese motorcycles and dirt bikes..
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2.5L Universal Aluminum Coolant Radiator Overflow Expansion Tank Reservoir Recovery Water Tank Bottle

  • ▲2.5L Coolant Overflow Tank feature:Color: Silver.
  • Material: 6061 aluminum alloy, anodized polished and durable for enhanced strength..
  • ▲When the coolant pressure in the radiator exceeds the pressure cap setting, the coolant is sealed through the pressure cap and flows through the overflow tube into the radiator coolant overflow tank..
  • ▲Great for containing overflow coolant/water from radiator.Also suitable for windscreen washer liquid or intercooler water spray container..
  • ▲Includes: 1 Piece Water Coolant Expansion Tank and 3 Pieces Screws.
  • ▲After-Sales Service: We are a professional team,If you have any questions about our coolant overflow tank,please feel free to contact us,we are very so honored to serve for you,and we will answer your doubts in the first time.No need to worry about it..
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Radiator Pressure Cap

Choosing the right radiator pressure cap for your vehicle is crucial for maintaining the optimal engine temperature and preventing any potential damage. To help you make an informed decision, we've researched and compiled a list of the top 14 radiator pressure caps available on the market. Without further ado, let's dive straight into our top picks!

1. Stant 10231 Radiator Cap:
The Stant 10231 Radiator Cap is a reliable choice known for its durable construction and secure sealing. It maintains the ideal pressure levels, preventing coolant leaks and overheating issues.

2. Motorad T-31 Radiator Cap:
The Motorad T-31 Radiator Cap is designed to fit most vehicles and offers a tight seal to ensure optimum cooling efficiency. Its pressure rating is calibrated to match OEM specifications.

3. Gates 31524 Radiator Cap:
The Gates 31524 Radiator Cap is a highly recommended option that contains a rubber sealing gasket for a secure and leak-free fit. It also features a corrosion-resistant pressure spring for extended lifespan.

4. Stant 10327 Radiator Cap:
With its durable build and consistent performance, the Stant 10327 Radiator Cap is a reliable choice. It maintains the correct pressure levels, enabling proper coolant circulation.

5. Motorad ST-49 Radiator Cap:
The Motorad ST-49 Radiator Cap is designed to fit a range of vehicle models and offers a quality seal to guard against leaks. This cap also includes a safety pressure-relief valve.

6. ACDelco RC96 GM Original Equipment Radiator Cap:
The ACDelco RC96 GM Original Equipment Radiator Cap is a trusted choice for GM vehicles. It meets all OEM specifications and ensures a secure seal to prevent coolant leaks.

7. Gates 31533 Radiator Cap:
The Gates 31533 Radiator Cap is a reliable option, featuring a vacuum-relief valve for enhanced cooling system performance and longevity. It is built to withstand extreme temperatures.

8. Motorad ST-13 Radiator Cap:
The Motorad ST-13 Radiator Cap is engineered for a precise fit and offers a reliable seal to prevent coolant loss. It is built to meet or exceed OEM specifications.

9. Stant 10393 Radiator Cap:
Featuring a sturdy construction and an accurate pressure rating, the Stant 10393 Radiator Cap ensures optimum cooling system performance.

10. ACDelco RC54 GM Original Equipment Radiator Cap:
The ACDelco RC54 GM Original Equipment Radiator Cap is another reliable choice designed to meet the specific requirements of GM vehicles. It provides a secure seal and maintains proper pressure levels.

11. Gates 31408 Radiator Cap:
The Gates 31408 Radiator Cap is built to withstand high pres ensuring efficient coolant circulation. Its durable construction and superior sealing capabilities make it a top contender.

12. Motorad T-13 Radiator Cap:
The Motorad T-13 Radiator Cap is a cost-effective choice that doesn't compromise on quality. It offers a reliable seal, preventing coolant leaks and maintaining optimal system performance.

13. Stant 10242 Radiator Cap:
The Stant 10242 Radiator Cap is known for its durable construction and reliable functionality. It provides a tight seal, preventing coolant evaporation and maintaining pressure.

14. ACDelco RC41 GM Original Equipment Radiator Cap:
The ACDelco RC41 GM Original Equipment Radiator Cap is a trusted option recommended for GM vehicles. It offers a secure fit and optimal pressure levels for efficient engine cooling.

Investing in a high-quality radiator pressure cap is essential for preserving the performance and lifespan of your vehicle's cooling system. From our top 14 picks, you can find a radiator pressure cap suitable for your needs. Remember to choose one that fits your vehicle's specifications, guarantees a reliable seal, and maintains the correct pressure levels. Stay cool and keep your engine protected!