Best Air Conditioning Valves of 2025

Robert Reyes Avatar
Robert Reyes
Last Updated: Jan 6, 2025

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Air conditioning valves are an essential component in the efficient operation of any air conditioning system. These valves regulate the flow of refrigerant, ensuring that the system is functioning at optimal levels. There are various types of air conditioning valves available on the market, including thermostatic expansion valves, electronic expansion valves, and solenoid valves. Each of these valves has its unique features and benefits, and the choice of valve will depend on the specific requirements of the air conditioning system. By selecting the right air conditioning valve, users can improve energy efficiency, reduce maintenance costs, and extend the lifespan of their air conditioning equipment.

At a Glance: Our Top Picks

Dorman GM Air Conditioning Schrader Valve Cover #TOP 1
Dorman GM Air Conditioning Schrader Valve
ftb score rating icon 9.8
GM Genuine Parts 15-51251 AC Control Valve Cover #TOP 2
GM Genuine Parts 15-51251 AC Control Valve
ftb score rating icon 9.7
Dorman Air Conditioning Service Port Caps Cover #TOP 3
Dorman Air Conditioning Service Port Caps
ftb score rating icon 9.5

Top 10 Air Conditioning Valves

#TOP 1

Dorman GM Air Conditioning Schrader Valve

800-955
Dorman GM Air Conditioning Schrader Valve Cover
Dorman 800-955 GM Air Conditioning Schrader Valve M12 X 1.50 Compatible with Select Models

The Dorman AC Valve is a direct replacement for the original valve on specified vehicles. It is designed to restore functionality after the original valve fails, ensuring reliable performance and a long service life. Made from quality materials, this valve is built to last. With the backing of a team of product experts and over a century of automotive experience, you can trust the quality of this valve. To ensure a perfect fit for your vehicle, simply input your make, model, and trim level into the garage tool. Upgrade your air conditioning system with the Dorman AC Valve and enjoy the convenience and peace of mind it brings.

What We Like
Direct replacement
Restores functionality
Durable construction
#TOP 2

GM Genuine Parts 15-51251 AC Control Valve

GM
15-51251
GM Genuine Parts 15-51251 AC Control Valve Cover
GM Parts Genuine 15-51251 Heating and Air Conditioning Control Valve

Restore your GM vehicle's heating performance with the GM Genuine Parts 15-51251 Heating and Air Conditioning Control Valve. This valve is designed to replace damaged temperature valves/doors, ensuring the quality, reliability, and durability of GM OE. The valve is manufactured to GM OE specifications for fit, form, and function, making installation quick and easy. Compatible with the 2010-2015 Chevrolet Camaro, this valve is the GM-recommended replacement part for your vehicle's original factory component.

What We Like
Restores heating performance
Manufactured to GM OE specification for fit, form, and function
Quick and easy installation
#TOP 3

Dorman Air Conditioning Service Port Caps

54374
Dorman Air Conditioning Service Port Caps Cover
Dorman 54374 Air Conditioning Service Port Caps Compatible with Select Models, 2 Pack

The Dorman A/C Service Port Caps are a reliable replacement for leaking or failed air conditioning service valve caps. Made from quality materials, these caps ensure reliable performance and a long service life. They are designed to match the fit and function of the original caps on specified applications, making them a direct replacement. With a team of product experts in the United States and over a century of automotive experience, Dorman is a trustworthy brand. To ensure a proper fit, you can input your vehicle's make, model, and trim level into the garage tool. Upgrade your air conditioning system with the Dorman A/C Service Port Caps and enjoy restored functionality.

What We Like
Direct replacement
Restores functionality
Durable construction
#TOP 4

UAC VC 2909C Valve Core Kit

UAC
Valve and Cap Kit
UAC VC 2909C Valve Core Kit Cover
New HVAC A/C System Valve Core and Cap Kit VC 2909C

The UAC Valve Core Kit is a reliable choice for your vehicle's air conditioning needs. This OE replacement kit promises a perfect fit, ensuring you can easily install it without any hassle. With premium quality that meets or exceeds industry standards, you can be confident in its durability. Additionally, the product is backed by a strong warranty, giving you peace of mind with your purchase. By adding your car's details to Amazon's garage, you can verify compatibility, making the shopping experience straightforward and worry-free.

What We Like
Guaranteed fit for vehicles
Meets OEM quality standards
Backed by strong warranty
Easy installation process
#TOP 5

KITUREK A/C Valve Core Caps

KITUREK
Car A/C Valve Core Cap
Blue
2PCS
KITUREK A/C Valve Core Caps Cover
Car A/C Valve Core Caps, Leakproof Air Conditioning System Seal Kit, R134a Air Conditioning Repair System Charging Port Caps, High Low Side Pressure Replacement Valve Caps (2PCS)

The KITUREK A/C Caps are designed to enhance your vehicle's air conditioning system. Made from durable plastic and rubber, these caps ensure long-lasting use even in tough conditions. They are compatible with most R134a AC systems, making them a reliable choice for your maintenance needs. The built-in O-ring seals effectively prevent refrigerant leaks and keep dirt out, ensuring smooth operation. Plus, the easy-to-use design features clear labels for low and high pressure, simplifying the identification process for you.

What We Like
Durable materials
Compatible with R134a systems
Leakproof design
Easy identification
#TOP 6

GM Genuine Parts A/C System Valve Core

GM
15-1119
1 Count (Pack of 1)
GM Genuine Parts A/C System Valve Core Cover
GM Parts Genuine 15-1119 Air Conditioning System Valve Core

The GM Genuine Parts 15-1119 Air Conditioning System Valve Core is a high-quality replacement part that can restore the function of your GM vehicle's A/C system. It is designed to repair leaking A/C systems and offers the same level of quality, reliability, and durability as your vehicle's original factory component. The valve core is manufactured to GM OE specification, ensuring a perfect fit and proper function.

What We Like
Restores A/C function
High-quality replacement part
Manufactured to GM OE specification
#TOP 7

AUTOKAY 10x HVAC Valve Core Remover

3368
AUTOKAY 10x HVAC Valve Core Remover Cover
AUTOKAY 10x HVAC AC Schrader Valve Core Remover Cap Tube 1/4" SAE * 1/4" OD * 4.65" Stem

The AUTOKAY HVAC Valve Kit includes ten new service valves that are essential for air conditioning systems. Each valve features a poppet design, assisted by a spring, which allows for efficient gas flow management. The kit also comes with a valve core remover, making it easy for you to maintain or replace valve cores without hassle. The durable brass caps include a rubber O-ring, ensuring a secure fit and preventing leaks. With a self-contained valve stem that opens to allow gas into a chamber, this kit provides you with the tools needed for effective HVAC maintenance.

What We Like
Ten service valves included
Easy core replacement
Durable brass construction
Leak prevention design
#TOP 8

Jewkot A/C Expansion Valve

Jewkot
KOTPZF3300SI-1PC
Silve
Jewkot A/C Expansion Valve Cover
Jewkot 1 PC Car A/C Expansion Valve, Metallic Anti-Wear Steam Engine Air Conditioning Valve, Universal Car Air Conditioning Parts, for Most Cars Sedans SUVs (Silver)

The Jewkot A/C Valve is designed to enhance your vehicle's air conditioning performance. Made from high-quality metal, it ensures durability and resistance to wear and rust, providing you with long-lasting use. This valve plays a crucial role in optimizing refrigerant flow, which helps your A/C system run efficiently and reduces energy consumption. Additionally, its robust construction allows it to withstand harsh automotive conditions, ensuring reliable cooling even in extreme temperatures. Installation is straightforward, making it easy for you to set up and enjoy a comfortable ride.

What We Like
Durable metal construction
Improves energy efficiency
Reliable in extreme conditions
Simple installation process
#TOP 9

OCR Car Air Conditioner Valve Core Kit (40PCS)

OCR
US_AIR002
40PCS
OCR Car Air Conditioner Valve Core Kit (40PCS) Cover
OCR Car Air Conditioner Valve Core R12 R134a Automotive Air Conditioning Refrigeration Tire Valve Stem with Double Head Dual Dismantling Remover Tool Assortment Kit (40PCS)

The OCR Car Air Conditioner Valve Core Kit includes 39 high-quality aluminum and brass valve cores with a double head dual dismantling remover tool. Suitable for most cars, this kit is ideal for car air conditioning replacement and maintenance, as well as replacing refrigerant valve core leaks. The transparent plastic box makes storing and organizing easy, making it a great addition to mechanic and A/C repair shops.

What We Like
High-quality materials ensure durable and long-lasting use.
Includes a double head dual dismantling remover tool for easy replacement and maintenance.
The kit includes 39 valve cores, making it a great value for the price.
#TOP 10

HomeSoGood 77PCs AC Valve Caps Set

HomeSoGood
FASD8E37/11111
HomeSoGood 77PCs AC Valve Caps Set Cover
77PCs Car Auto R134a AC A/C System Valve Core Dust Caps Set Air Seal Air Conditioning Valve Replacement Caps

The HomeSoGood AC Valve Caps offer a reliable solution for your air conditioning needs. With their durable design, these caps ensure long-lasting performance, giving you peace of mind. The O-ring sealing cover effectively prevents gas leakage, so you can maintain optimal system efficiency. These caps are specifically designed for replacing valve core dust caps, making it easy for you to keep your vehicle's AC system in top shape. Whether you're working on R134A or R12 systems, this universal set is a convenient addition to your auto repair toolkit.

What We Like
Durable construction
No gas leakage
Universal compatibility
Easy installation
Buying Guide Image

Frequently Asked Questions (FAQs)

1. How do I know if my AC valve is bad?

One way to identify a faulty AC valve is by observing fluctuations in its ability to control refrigerant flow. This can result in air from the vents being too cold or warm, with temperatures constantly shifting. If you notice inconsistent temperatures coming from your AC vents, it may indicate a problem with the valve.

2. How much does it cost to replace a Txv valve?

On average, it costs around $400 to replace the TXV expansion valve in an AC unit. The cost can range from $100 to $700, depending on factors such as labor and the specific valve needed. It is recommended to hire a professional for this project, as it can be challenging to DIY.

3. Can I replace a Txv valve myself?

Replacing a TXV valve is not typically a DIY project for the average homeowner. It requires soldering a drier into the high-pressure line and specialized tools. However, if you have experience with HVAC systems and the necessary tools, you can find the parts online and attempt the replacement yourself.

4. What does an AC solenoid valve do?

An AC solenoid valve is an electromechanical valve used to control the flow of liquid or gas. In the context of air conditioning systems, solenoid valves are commonly used to turn refrigerant flow on and off. They play a crucial role in regulating the refrigerant's movement within the system.

5. How do you know if a valve is damaged?

Damaged valves often exhibit warning signs. For example, failing check valves may vibrate, lose internal parts, or result in reverse flow and excessive wear. If you notice unusual vibrations, loss of parts, or signs of reverse flow in your valve, it may indicate damage and require attention or replacement.

6. What happens if TXV valve goes bad?

A failing TXV valve can lead to various issues. Some signs of a failing TXV valve include refrigerant line freezing, coil leaks due to increased pressure, and coil freezing. If you observe these signs, it is possible that the TXV valve in your AC unit is not functioning correctly and may need to be replaced.

7. How do you tell if a TXV is not working?

A TXV valve that is not working properly can result in underfeeding of the evaporator. Symptoms of a plugged TXV valve include the evaporator operating under a vacuum or very low pressure. It may not respond to adjustments in superheat or suddenly open up when superheat is adjusted downwards.

Editor's Notes

During our air conditioning valve research, we found 24 air conditioning valve products and shortlisted 10 quality products. We collected and analyzed 14,531 customer reviews through our big data system to write the air conditioning valves list. We found that most customers choose air conditioning valves with an average price of $5.58.

The air conditioning valves are available for purchase. We have researched hundreds of brands and picked the top brands of air conditioning valves, including Dorman, GM, UAC, KITUREK, AUTOKAY. The seller of top 1 product has received honest feedback from 385 consumers with an average rating of 4.7.

Written by
Robert Reyes Avatar

Robert Reyes is a dedicated writer from San Francisco with a bachelor of degree in mechanics and a bachelor of degree in marketing. He focuses on making some complicated topics simple and enjoys explaining complex and technical things in an easy-to-understand way.