Top 10 Best radiator caps

radiator caps
Find the perfect Uncategorized from our top 10 picks for 2025. Prices from 13.99 CAD to 25.76 CAD. Detailed comparison and expert reviews.
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Gates - Gates 31528 Standard Radiator Cap
#1
Best Choice
NEW
Prime In Stock

Prime

  • Assures long service life and accurate control of pressure
  • Gates - Driven By Possibility
D 40.0 /100
Allmotorparts - Radiator Cap, Replace 16401-31520 Compatible with Toyota Lexus - Avalon Camry Echo Highlander Prius C Sequoia Sienna Solara Tundra Yaris, ES300h ES350 GS300 GS430 IS300 LS430 RX350 RX450h SC430, More
#2
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Prime

  • 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 : 2001-2002, 2015-2016 4Runner | 2005-2018 Avalon | 1992-1996, 2002-2017 Camry | 2000-2005 Echo | 2001-2019 Highlander | 2012-2019 Prius C | 2008-2009, 2017-2020 Sequoia | 2007-2009 Sienna | 2002-2008 Solara | 1993-1998 Supra | 2016-2017 Tacoma | 2007-2011, 2017-2020 Tundra | 2012-2015 Venza | 2007-2018 Yaris | 2004-2006 xA | 2004-2006 xB | 2008-2014 xD radiator cap. Please check the detailed description before purchase. Thank you!
  • REPLACES PART # : 16401-31520, 1640131520. The radiator cap compatible with Lexus : 1992-1993 ES300 | 2013-2018 ES300h | 2007-2018 ES350 | 1998-2005 GS300 | 2015 GS350 | 1998-2000 GS400 | 2001-2006 GS430 | 2015-2016 GX460 | 2015 IS250 | 2001-2005, 2016 IS300 | 2015-2016 IS350 | 1998-2000 LS400 | 2001-2006 LS430 | 2016 RC300 | 2015-2016 RC350 | 2001-2003 RX300 | 2007-2017 RX350 | 2011-2021 RX450h | 2018-2021 RX450hL | 1998-2000 SC300 | 1998-2000 SC400 | 2002-2005 SC430.
D 40.0 /100
Gates - Gates 31336 Radiator Cap
#3
Top Pick
NEW
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Prime

  • Country of Origin : China
  • The Package Height of the Product is 3.02 inches
  • The Package Length of the Product is 7.53 inches
D 40.0 /100
ACDelco - ACDelco RC85 GM Original Equipment 15 P.S.I. Radiator Cap
#4
NEW
Prime In Stock

Prime

  • Seal and maintain pressure on the cooling system for vehicle safety
  • Raise the boiling point of the engine coolant to maintain efficiency
  • Fit most models of GM vehicles for expanded coverage
D 40.0 /100
C$25.18
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XINLIYA - XINLIYA High Pressure Radiator Cap with Temperature Gauge, 1.8 Bar 25.6Psi Aluminium Alloy Modified Fuel Tank Cap for Temp Moniter, Vehicle Accessories, Compatible with KLR650 KX250 KX250F
#5
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  • High Quality Material: The high pressure radiator cap is made of high-hardness aluminum alloy material. Which is strong and durable, can cope with all kinds of weather, and can be used on the difficult off-road trips. The seal is made of soft silicone material which provide a good seal and high temperature resistance. Adjust the pressure balance of the water tank and directly protect the car water tank.
  • Scope of Applications: This product is measures of 1.14 x 0.55 x 2.55 inches, which is in small size that suitable for most vehicles on the market. Such as CR125R, CRF250R, CRF250X, CRF450R, XR650R, KLR650, KX250, KX250F, KX450, KX450F, KX65, DR-Z400, DR-Z400S, DR-Z400SM, Banshee 350, Rhino 450 660 700, RM250, RMZ250, SV650, WR400F, WR450F, YZ400F, YZ450F, YZ450Z and other vehicles equipped with 1.8 high-pressure radiator caps. Please see the detailed model information in specifications.
  • Simple Installation: Installing the high pressure radiator cap is extremely simple without the use of tools. First, check the sealing surface of the water tank opening for rust, dirt, or residual sealant and clean it thoroughly with a soft cloth to ensure the new cover is properly sealed. Then, align the new water tank cap with the water tank opening, then turn it clockwise until you feel a noticeable resistance. Finally, start the engine and observe for leaks.
D 40.0 /100
C$13.99
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Gates - Gates 31516 Safety Release Radiator Cap
#6
NEW
Prime In Stock

Prime

  • Assures long service life and accurate control of pressure
  • Can be used for applications with or without coolant recovery systems
  • Inventory requirements are dramatically reduced
D 40.0 /100
C$20.07
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ACDelco - ACDelco RC27 Professional 15 P.S.I. Radiator Cap
#7
NEW
Prime In Stock

Prime

  • Fit most models of GM vehicles on the road today for more coverage
  • Seal and pressurize your vehicleโ€™s cooling system as the radiator transfers heat from the engineโ€™s coolant to the outside air
  • Professional, premium aftermarket replacement radiator cap
D 40.0 /100
C$23.44
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HOSAIRY - HOSAIRY Radiator Cap Replace 16401-31520 for Toyota Avalon Camry Echo Highlander Prius C Sequoia Sienna Solara Tundra Venza Yaris for Lexus ES300h ES350 GS300 GS430 IS300 LS430 RX300 SC430
#8
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Prime In Stock

Prime

  • [Compatible Vehicles] 2005-2008/2013-2016 for Toyota Avalon, 1992-1993/2002-2009/2013-2016 for Toyota Camry, 2000-2005 for Toyota Echo, 2001-2007 for Toyota Highlander, 2011-2016 for Toyota Highlander, 2012-2016 for Toyota Prius C, 2008-2009 for Toyota Sequoia, 2007-2008 for Toyota Sienna, 2004-2008 for Toyota Solara, 1993-1998 for Toyota Supra, 2007-2011 for Toyota Tundra, 2013-2015 for Toyota Venza, 2007-2009 for Toyota Yaris To 02/2009, 2012-2016 for Toyota Yaris From 02/2012.
  • [Compatible Vehicles] 1992-1993 for Lexus ES300, 2013-2016 for Lexus ES300h, 2007-2016 for Lexus ES350, 1998-2005 for Lexus GS300, 1998-2000 for Lexus GS400, 2001-2003 for Lexus GS430, 2001-2005 for Lexus IS300, 1998-2000 for Lexus LS400, 2001-2006 for Lexus LS430, 2001-2003 for Lexus RX300, 2007-2008 for Lexus RX350, 2016 for Lexus RX450h, 1998-2000 for Lexus SC300, 1998-2000 for Lexus SC400. Replace OE# for 16401-31520, 1640131520
  • [Function] HOSAIRY Radiator Cap designed to seal the top of the radiator filler neck, It can hold the coolant inside the radiator and prevent coolant loss, Also works as a two-way valve that keep the right pressure inside so the radiator does it work correctly. If the pressure isn't maintained, coolant will boil and evaporate, the engine will at risk of overheating. Symptoms of a Bad Radiator Cap: air enters the system, low coolant level, coolant leaks, overflowing reservoir, overheating engine.
D 40.0 /100
C$15.99
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Motorcraft - Motorcraft RS-527 Radiator Pressure Cap
#9
NEW
In Stock
  • Leading Manufacturer Of High-Quality Products
  • International Renown For Our Diverse Range Of Award-Winning Products
  • Fully Equipped With State-Of-The-Art Technology
D 40.0 /100
C$25.76
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Gates - Gates 31523 Radiator Cap
#10
NEW
Prime In Stock

Prime

  • Country of Origin : Mexico
  • The Package Height of the Product is 3.02 inches
  • The Package Length of the Product is 7.53 inches
D 40.0 /100
C$18.29
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Conclusion: radiator caps

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Based on our analysis, the #1 product on our list offers the best value with a rating of 0.0/5.
Prices range from 13.99 CAD to 25.76 CAD, offering options for every budget.
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Gates 31528 Standard Radiator Cap
๐Ÿฅ‡ #1

Gates 31528 Standard Radiator Cap

18.29 CAD
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