What Size Oil Drain Plug do You Need?

If you’re unsure about what size oil drain plug you need, this blog post is for you. We’ll go over the different factors to consider and help you make the best decision for your car.

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Why is the right size important?

The oil drain plug is responsible for sealing the oil pan so that oil does not leak out. If the plug is too small, it will not be able to create a seal and oil will leak out. If the plug is too large, it will not be able to create a seal and oil will leak out. It is important to use the correct size oil drain plug so that you do not have any leaks.

How to measure your oil drain plug

To find out the thread size of your oil drain plug, simply measure the diameter of the thread with a vernier caliper or a ruler. The most common sizes are 10mm, 12mm, and 14mm. If you don’t have a vernier caliper or a ruler, you can also use a piece of string or dental floss. Wrap it around the thread, mark it where it meets, and then measure the length with a ruler. The table below shows the approximate thread size for each measurement.

10mm = 3/8″
12mm = 1/2″
14mm = 9/16″

What are the common sizes?

There are four common sizes of oil drain plugs: 10mm, 12mm, 14mm, and 16mm. The most common size is the 12mm, which is used on most cars. The 14mm size is used on some larger cars and trucks. The 10mm and 16mm sizes are less common and are used on some smaller cars.

What if you can’t find the right size?

If you can’t find the right size, there are a few things you can do. You can try using a washer that is slightly bigger than the hole. This will create a tighter fit and help to prevent leaks. You can also try using plumbers putty or another type of sealant around the drain plug to help create a watertight seal.