It is always difficult when it comes to decide and making final call choosing radiator cap replacement, hence we are here today so be sure to check the product reviews that will solve your confusion and save time. Reviews are a great way to find out if the product is right for you and whether it has any design flaws. If there are multiple bad reviews, you may want to look at other products. Negative reviews can tell you a lot about the product, including things you may not have thought to consider. They can tell you about any potential issues with the product. They can also tell you about issues with the manufacturer’s customer service. To help you out, we’ve collected reviews of what we think are the radiator cap replacement this year. Before you proceed with anything, read through our thoughts on the top radiator cap replacement, as well as an overview of what you need to know when considering your buying
In this in-depth review guide, we will discuss about the best radiator cap replacement.
A Quick Comparison of Our Favorites
The Best radiator cap replacement
Stant 10230 Radiator Cap
$4.35 in stock
4 new from $4.35
Free shipping
Amazon.com
as of August 11, 2025 4:57 am
Features
- 16 PSI radiator cap for a 3/4" deep "A" size filler neck..Material:Metal
- Made of durable metal, 4 ear design.
- For open or closed system.
- Product_Type: Engine_Component_Cap
Radiator Pressure Cap, Coolant Reservoir Cap Replace RS-527, RS527, 9C3Z-8101-B, 9C3Z8101B Compatible with Ford 6.0 7.3 Powerstroke - Explorer F150 F250 F350 Mustang Taurus, Lincoln, Mercury, More
$13.99
in stock
Amazon.com
as of August 11, 2025 4:57 am
Features
- REPLACEMENT RADIATOR PRESSURE 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 FORD VEHICLES : 1992-2011 Crown Victoria | 2003-2014 Ford E150, E250 | 2007-2014 Edge | 2000-2005 Excursion | 1997-2013, 2015-2017 Expedition | 2002-2005, 2011-2019 Explorer | 1997-2017 F150 | 1997-1999 F250 | 1999-2016 F250 Super Duty | 1997 F350 | 1999-2017 F350 Super Duty | 2009-2019 Flex | 2006-2013 Fusion | 1996-2014 Mustang | 2013-2019 Police Interceptor | 2001-2011 Ranger | 1996-2019 Taurus | 1994-1997, 2002-2005 Thunderbird | 1999-2003 Windstar radiator cap.
- REPLACES PART # : RS-527, 9C3Z-8101-B, RS527, 9C3Z8101B radiator cap. The radiator cap can compatible with Lincoln, Mercury : 2003-2005 Aviator | 1995-2002 Continental | 2000-2006 LS | 2009-2016 MKS | 2010-2019 MKT | 2007-2017 MKX | 2007-2012 MKZ | 2006-2008 Mark LT | 1993-1998 Mark VIII | 1998-2017 Navigator | 1992-2011 Town Car | 1992-2011 Grand Marquis | 2006-2011 Milan | 2005-2007 Montego | 2004-2007 Monterey | 2002-2005 Mountaineer | 1996-2005, 2008-2009 Sable.
- OE FIT, FORM, FUNCTION : Professional, high quality OE style and meet or exceed all original equipment performance replacement radiator cap. Constructed with premium materials for durability. Designed to function on open cooling systems and overflow reservoir type systems and allows the cap to be installed and removed much easier. Once you have a replacement and your engine is cool, simply unscrew the old cap, and install the new by screwing it on.
- FRIENDLY NOTE : If the Radiator Pressure Cap fails on your vehicle, simply contact us for a replacement. Also if you have any other questions on our this radiator pressure cap, please contact us at the first time. This is NOT a genuine part, it's a aftermarket replacement part manufactured by Allmotorparts and can fixed your antifreeze lose problem very well.
Stant Radiator Cap
$10.35 in stock
Amazon.com
as of August 11, 2025 4:57 am
Features
- 16 PSI micro radiator cap.
- Fits 32 mm ID, 10 mm deep.
- Made of durable material.
- Made to bring coolant back from the overflow.
MotoRad T-16R Radiator Cap
$8.01 in stock
11 new from $8.01
Free shipping
Amazon.com
as of August 11, 2025 4:57 am
Features
- Maintains Proper Cooling System Pressure
- Easy Installation And Removal
- 100% Tested To Ensure Proper Pressure And Longevity
- Meets All Oem Specifications
MotoRad SAFETY LEVER RADIATOR CAP -ST16
$8.44 in stock
20 new from $3.11
Free shipping
Amazon.com
as of August 11, 2025 4:57 am
Features
- AWARD WINNING COMPANY
- Fit type: Vehicle Specific
- Safety Lever Radiator Cap
- Easy installation and removal
ACDelco GM Original Equipment RC104 18 P.S.I. Radiator Surge Tank Cap
$12.24
in stock
8 new from $10.10
Free shipping
Amazon.com
as of August 11, 2025 4:57 am
Features
- seals the radiator surge tank in your vehicle, which is a part of most radiator systems and cools off the engine
- gm-recommended replacement part for your gm vehicle’s original factory component
- offering the quality, reliability, and durability of gm oe
- manufactured to gm oe specification for fit, form, and function
- Fit type: Vehicle Specific
ACDelco GM Original Equipment RC85 15 P.S.I. Radiator Cap
$10.47
in stock
10 new from $8.99
Free shipping
Amazon.com
as of August 11, 2025 4:57 am
Features
- 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
- GM recommended replacement part for your gm vehicle’s original factory component
- Offering the quality, reliability, and durability of gm oe
MotoRad ST-18 Safety Lever Radiator Cap
$9.03 in stock
10 new from $2.88
Free shipping
Amazon.com
as of August 11, 2025 4:57 am
Features
- Safety lever to vent coolant pressure before removal
- Maintains proper cooling system pressure
- Easy installation and removal
- 100% tested to ensure proper pressure and longevity
- Meets all OEM specifications
Radiator Cap Compatible With Nissan Toyota Honda Kia Mazda Opel Hyundai Suzuki Infiniti Lexus 21430-1P111 21430-8991A 21430-D995A 31336 16401-67150
$8.99
in stock
Amazon.com
as of August 11, 2025 4:57 am
Features
- Brand new and never used parts. Made of high-quality materials that meet OE standards.
- It is extremely important to always make sure to allow the engine to cool down before removing the radiator cap, as removing the cap from a hot system can cause sudden coolant spray and severe burns. A faulty radiator cap can have a huge impact on the cooling performance of your vehicle, once you have a replacement and your engine is cool, simply unscrew the old cap, and install the new by screwing it on.
- Compatible With Honda Acura BMW Chevrolet Dodge Eagle Genesis Geo Kia Mazda Opel Hyundai Toyota Suzuki Nissan Ford Infiniti Lexus
- OEM Interchange: 2143074N02, 21430D992D, 21430D995A, 21430D999A, 25330-0W000, 25330-1P000, 25330-1P000, 25330-1R000, 25330-38000, 25330-38001, 25330-39100, 25330-3K000, 253300W000, 2533020, 2533020, 253302E000, 253302E001, 2533038000, 2533038001, 2533039100, 253303K000, 253303Z000, 253303Z000, 25330B1000, 25330B1000, 25330C2000, 31336, 33044, 4495805, 45137AE000, 45137AE002
- Regulators-Built to strict quality control standards, 1 years warranty, hassle-free return and money back policy, buy with confidence!
Stant 10331 Automotive Accessories Safety Radiator Cap, 16 psi, Metal, Black
$11.75
in stock
4 new from $11.75
Free shipping
Amazon.com
as of August 11, 2025 4:57 am
Features
- 16 PSI Lev-R-Vent radiator cap in "A" size..Material:Metal
- For open or closed system.
- Will bring back coolant from the overflow tank.
- Vented design.
The Video Review of Best radiator cap replacement
The Verdict
When you’re looking for radiator cap replacement, you’ll want to keep a few things in mind. First, decide what you want to use the radiator cap replacement for. Next, check the product reviews with comparision which we have listed as well. Once you’ve decided on radiator cap replacement you want to buy radiator cap replacement, look at the reputation of the manufacturer as well. You can compare prices and quality together before you make your purchase.