What Size Socket For Spark Plugs In 2022

When you’re buying a spark plug socket, you will want to make sure that you get one that has the right socket size for spark plugs of your engine.

While there are many different sizes of spark plug sockets available, it can be difficult to figure out which size is best for your engine.

In this post, we will be discussing the best size socket for spark plugs in 2022. We will also be discussing some of the benefits of using these sockets.

What Size Socket For Spark Plugs?

Spark plugs are the little devices that ignite the fuel in your engine. They can come in several different sizes. You will usually find them in the glove compartment of your car.

However, this may be hard to see unless you open up your glove box and reach in there. We have added a suggested product for each socket size. It’s always good to have options.

Most Common Sizes Sockets For Spark Plug

Standard automobile spark plugs come in a variety of sizes, but the most common are the  3/8-inch and 5/8 inch sizes.

Spark plugs also come in a variety of shapes, including flat, round, and hexagon-shaped plugs.

The purpose of an engine’s spark plug is to ignite the fuel mixture in the cylinder at precisely the right time. Because ignition timing is critical, it is important that spark plugs be properly sized and installed.

The size of the spark plug’s center electrode is determined by its voltage rating, which is usually stamped on the top of the spark plug.

The spark plug’s diameter is measured at the end where the center electrode protrudes from the insulator.

Spark plug diameters are marked with millimeters, fractions of an inch, or numbers, as shown in the following table.

As can be seen in the above table, the most common spark plug sizes are 3/8 inch and 5/8 inch. Both of these sizes are used in automotive engines.

Step By Step Installing Spark Plugs

Step 1: Choose the right socket: There are several different types of spark plug sockets available.

The most common is the “standard” socket and the “long” socket.  Standard spark plugs fit into standard spark plug sockets. Long spark plugs fit into long spark plug sockets.

Step 2: Choose the right size: The size of the socket can make a difference in how easy it is to install spark plugs. Standard spark plug sockets come in a variety of sizes. Long spark plugs come in only one size.

Step 3: Choose the right type: There are several different types of spark plugs. The most common is the “standard” spark plug, which is used with most vehicles, and the “long” spark plug, which is used for racing applications.

Step 4: Make sure your spark plugs are installed properly: Before you start your vehicle, make sure that your spark plugs are installed properly. If they aren’t, you could have problems starting the engine.

Recommended Sockets For Spark Plugs

1. Craftsman 13/16″ Spark Plug Socket

Craftsman has been synonymous with quality for over a century. That’s why they’ve become one of the most trusted brands in the world.

The Craftsman brand of power tools are some of the most popular in the world, and it’s easy to see why.

They are made with the highest quality materials and they feature ergonomic designs to make them comfortable to use.

This particular product is their 13/16″ Spark Plug Socket, which is an important tool for any mechanic.

You need it to properly remove and install spark plugs, so you’ll have a reliable source of electricity when working on your car.

It’s made with a chrome finish, so it’s easy to keep clean and safe, while still providing a nice finish. It’s also made from cast iron, which means it’s strong and durable and will stand up to a lot of wear and tear.

The socket features a large size, so you can easily fit the spark plug into the socket and tighten it down.

And, since it is made of cast iron, you do not have to worry about corrosion, it is not going to rust or corrode over time.

All in all, this is a great product that you will not regret purchasing. Craftsman is one of the most trusted brands in the world, and we know you will be happy with this product.

Good & Bad

Pros

• It meets or exceeds ASME specifications.
• A large marking on the side of the body.
• Easy to use.
•  Larger size than other plugs.
•  It has a long life span.

Cons

• The color is not very attractive.

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2. Craftsman 3/4″ Spark Plug Socket

With a new spark plug socket, the Craftsman 3/4″ Spark Plug Socket is now an essential tool for any car enthusiast.

The spark plug socket is used to remove spark plugs and spark plug wires, but the socket is also great for any other purpose.

It can be used to tighten nuts, bolts, and screws. It even works on wrenches, making it perfect for a mechanic.

This socket is great for people who are looking for something that’s a little different from the standard sockets they have in their homes.

It has a larger opening than most others and a better design. The large markings make it easy to identify, and the finish is also corrosion-resistant.

If you are looking for a unique socket for your car, we recommend the Craftsman 3/4″ Spark Plug Socket. It is the best option out there for people who want something different.

Good & Bad

Pros

• Made from high-quality materials
• The deep socket and the 6-point socket provide a secure fit
• Durable.

Cons

• The size is too small

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3. Sunex 9/16-Inch Spark Plug Socket

The Sunex 9/16-Inch Spark Plug Socket is designed specifically for the 9/16-inch spark plug, so you can remove and install it more easily and efficiently than with traditional sockets.

It is made from CR-MO alloy steel for long life and comes in a compact design that’s easy to handle and store.

It also features a universal mounting system for various spark plugs, and a set of three rubber feet to keep it securely in place.

This makes it perfect for anyone who’s tired of losing their spark plugs on the floor or table.

Good & Bad

Pros

• The plug can be removed without the need to remove the engine cover
• It has an extra deep wall socket
•  The plug is made from CR-MO alloy steel.
•  It can be used in both petrol and diesel engines.

Cons

•  The product is not very effective at cleaning the spark plugs

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4. Craftsman 11/16” Deep Socket

For anyone who uses a standard 10-32 socket wrench on a regular basis, this will be the perfect accessory.

It makes using the socket wrench much easier, and your life will be that much simpler. It has a deep 16-gauge steel body and a chrome finish.

This also features a 12-point fastener and a large set of markings that make it easy to identify which size you need for your specific fastener.

This is a great replacement for the standard socket wrench you’re currently using and can save you a lot of time. A deep socket is an essential tool for anyone who needs to quickly engage a bolt or screw.

The deep socket is available in a chrome finish, but if you’re looking for something more rust-resistant, it comes with a full polish chrome finish as well.

It’s great for anyone who works in a dusty environment, or who might be exposed to a lot of corrosion.

This is a high-quality replacement that will last you a long time. If you want a reliable, durable deep socket wrench, then this is the best option available today.

Good & Bad

Pros

• The deep socket is available in chrome finish.
• Quick size identification
• It has a deep socket and a quick engagement.

Cons

• The quick size identification is not available in black finish.

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5. CruzTOOLS Aviation ⅞” Spark Plug Socket

The CruzTOOLS Aviation ⅞” Spark Plug Socket is an excellent choice for any aviation application.

It features a 1” well depth and an aircraft-grade aluminum body that can be easily cleaned. This is ideal for cleaning up exhaust gasses or other environmental hazards.

The deep well helps you get into tight spaces where a traditional spark plug socket would not work, and also allows you to access the threads more easily than a shallow socket.

There are even 3/8” threads at the base for mounting accessories.

There are 2 sizes of sockets; one for 7/8″ plugs and one for 7/8″ plugs. You can also use them to access small parts. They’re made with heavy-duty cast aluminum, which means they’ll hold up to years of use.

The socket is compatible with both Champion and Tempest plugs. It’s made with aircraft-grade aluminum, so it won’t rust.

Plus, there are 3/8” threads at the base for attaching accessories, making it perfect for mounting a flashlight or other accessories.

There are 3 different versions available: The 1” version is a great choice for aircraft or racing applications. The 2” version is good for marine or automotive applications. And the 3” version is perfect for home use.

It’s available in both black and silver. You can use these sockets for any type of aviation application, from racing to flight simulators to general aviation. There is no other spark plug socket that’s this versatile.

Good & Bad

Pros

• It has a deep well for all sizes of sockets

• A special thread design for aviation spark plugs
• It comes with a wrench   

• Made from stainless steel and aluminum alloy

Cons

• The threads are not very strong.

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6. Powerbuilt 640855 3/8-Inch Drive Spark Plug

In our ongoing quest to build the best sockets, we have come across some of the best in the industry. The Powerbuilt 640855 is definitely one of them.

This socket set features six different sizes that will fit the vast majority of applications. They include 5/8-inch, 3/4-inch, 13/16-inch, 14mm, and 18mm sockets.

This is a really handy tool for anyone who has a lot of sockets on their vehicle, and it is also great for any mechanic or car enthusiast.

The sockets are made from sturdy steel construction with a deep well and rubber retaining ring. This means they will hold plugs securely even under the most extreme conditions.

The sockets have been designed to meet or exceed ANSI standards, so you know you are getting the best quality.

Plus, the sockets feature a lifetime warranty, so you can rest easy knowing that they will last for years to come.

Good & Bad

Pros

• The sockets are made of chrome vanadium
• The sockets are thick and can handle heavy-duty tasks
• The sockets have been tested and approved by UL for the United States

Cons

• The sockets may be too big to fit certain models.

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7. EPAuto Swivel Magnetic Spark Plug Socket, 6 point 5/8-inch x 6-Inch

The EPAuto Swivel Magnetic Spark Plug Socket is an absolute must-have for any mechanic.

It offers a 2.5-inch wide drive that can be swiveled to 360 degrees and has a magnetic feature that allows you to easily remove the plug without having to take off the socket.

This makes it easier than ever to get your engine running again after a breakdown. Plus, the socket features a chrome plating and mirror polish finish to keep it looking good even after years of use.

The EPAuto Swivel Magnetic Spark Plug Socket is also very versatile since it comes with a 3.5-inch wide drive.

That means you can use it with almost any vehicle, including SUVs, motorcycles, and cars.

It also has a 360-degree swivel action that makes it easy to handle and maneuver, so you can get to where you need to go faster. For the best all-around performance, this is our top pick for the best spark plug socket.

Good & Bad

Pros

• It has a magnetic feature
• Made from hardened treated chrome vanadium steel alloy (cr-v).
• Corrosion-resistant.

Cons

• It is not waterproof.

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What Are The Tools Needed to Change Spark Plugs in a Car?

You’ll need a spark plug socket, a spark plug, a screwdriver, and a wire.

You can use a spark plug socket that you have lying around, but a spark plug socket is not needed. All you need to do is remove the spark plug, remove the old plug wire, and install a new plug wire.

If you don’t want to get dirty, then just take the spark plug out of the car. To remove the spark plug, first, disconnect the battery. Use a spark plug socket to remove the spark plug.

This will help you keep the plug socket clean, which is important. Next, remove the spark plug wire.

How to Change Auto Spark Plugs?

Step 1: Pick a Size: Pick a size that fits your car. The socket will be either a 5/16” or 3/8” socket. This is determined by the diameter of the spark plug.

The smaller the socket, the more torque it can exert on the spark plug. The larger the socket, the more torque it can exert on the spark plug.

Step 2: Pick a Length: Pick the length of the socket. This determines how far the socket can be inserted into the cylinder. The longer the socket, the more torque it can exert on the spark plug.

Step 3: Pick a Material: Pick the material of the socket. There are several types of sockets. Some are made of metal and others are made of plastic.

Step 4: Pick the Right Size: Once you have the socket picked, you can determine the right size. The size is determined by the diameter of the spark plug.

Step 5: Pick the Right Length: The length of the socket will depend on the size of the spark plug. The longer the socket, the more torque it can exert on the spark plug.

What to Consider When Buying A Spark Plug Socket?

Type of Engine

You need to know what type of engine you want before you buy any engine sockets.

The most common types of engines you’ll find on the market are standard and deep. The difference is that deep sockets have a deeper wall thickness, which means that they’ll hold more torque and provide better support for your vehicle.

They’re also available in various sizes, so make sure you know how big you need it before you buy.

Standard Vs Deep

All standard and deep socket designs work in the same way. To use them, you need to place them in the correct position on the head of your bolt and then tighten them with a socket wrench.

Once they are tightened, they will remain in place and provide a stable platform for your bolt.

The only difference between the two is that deep sockets have a thicker wall than standard sockets.

This allows them to hold more torque, which makes them much more durable and effective when it comes to holding the head of your bolt. But it also means that deep sockets are a bit more expensive than standard.

Wall Thickness

You need to know what kind of wall thickness you want before you buy any sockets.

The most common wall thicknesses for engine sockets are 10mm, 11mm, and 14mm. But some socket designs can come in other wall thicknesses as well, like 16mm and 18mm. Make sure you know what type you need before you buy.

If you are looking for the best quality, durability, and price for your socket, then you should go with a deep socket.

They will hold more torque than standard sockets, so they will keep the bolt from loosening or falling off if you do not tighten it all the way down.

But if you are looking for something on the cheap end of the spectrum, then you should probably go with the standard sockets.

They are not as durable, but they are easier to install, so if you need to replace them often, they may be cheaper to purchase.

Do I Need a Spark Plug Socket Wrench?

If you have a car with a spark plug, you will need a spark plug socket wrench.

This tool is used to tighten the spark plug after it has been loosened.

If you do not own one, then you can purchase one at your local auto parts store. You should have one on hand when you need to work on your car.

You may find it easier to carry the socket wrench in your pocket or purse rather than carrying a separate socket wrench and having to find a place to put it each time you need it.

Frequently Asked Questions

What size is a spark plug socket?

A spark plug socket is typically around 5/8” or 13/16”.

What size socket for Subaru spark plugs?

The Subaru spark plugs are generally a 9/16 inch size.

This is the size of spark plug that will fit in your vehicle, so you will not need to get an aftermarket replacement for the factory spark plugs.

What size socket for a spark plug?

Standard spark plug sockets are 5/8 inches and 13/16 inches.

There are also standard spark plugs that have a specific length and are designed for a particular engine. The most common type of spark plug socket is the straight or normal socket, which has a threaded hole in it.

What size socket do I need for spark plugs?

A socket that fits the spark plugs is typically either a 6-point or 8-point.

Conclusion

The best size spark plug socket is one that fits the size of the spark plug. The problem is that there is no standard size for spark plugs.

So, you need to use a socket that is compatible with the spark plug that you are using. You can check this out in this review.