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What size socket is the oil drain plug?

The size of the socket needed for an oil drain plug can vary depending on the make and model of the vehicle, but a common size is a 17mm socket. This socket size is typically used for the oil drain plug on many cars and light trucks.


Determining the Correct Socket Size


To determine the exact socket size needed for your vehicle's oil drain plug, you can consult your owner's manual or look up the information online. The size of the oil drain plug can also be determined by visually inspecting the plug or by measuring it with a socket wrench or caliper.



  • Check your owner's manual for the recommended socket size for your vehicle's oil drain plug.

  • Look up the socket size online using your vehicle's make, model, and year.

  • Visually inspect the oil drain plug to estimate the socket size needed.

  • Measure the diameter of the oil drain plug with a socket wrench or caliper.


Once you have determined the correct socket size, you can purchase the appropriate socket wrench or socket set to remove the oil drain plug and change the oil in your vehicle.


Importance of Using the Correct Socket Size


Using the correct socket size is important to avoid stripping or damaging the oil drain plug. A socket that is too small may not fit properly and could round out the edges of the plug, making it difficult to remove. A socket that is too large may not grip the plug securely, leading to the socket slipping and potentially causing damage.


It's also important to ensure that the socket is the correct size for the specific vehicle, as oil drain plug sizes can vary between makes and models. Using the wrong socket size can lead to issues with the oil change process and potentially cause damage to the vehicle.

What size socket do I need for oil?


Most common sizes you need are 7, 8, 10, 12, 18 and 19. Well I did a full PDI (obviously didn't change fluid yet), and didn't need more than 16. You need an 18 for the spark plug and the 19 for the oil. Pretty much everything else can use the smaller sockets.



What kind of wrench do I need to remove an oil drain plug?


Oil plugs form a solid seal to contain several of your car's fluids, and can only be removed and replaced with an oil drain plug wrench. At Capri Tools, we're proud to offer a wide selection of automotive tools, including our Capri Tools Oil Drain Plug Wrench.



What size is the oil drain bolt?


Mild Steel M12 (12 mm) Oil Drain Bolt, Size: 15 mm.



What are common drain plug sizes?


There is no universal oil plug size, but they do come in just a few several standard sizes, such as ¼ inch (. 6 centimeters), 3/8 inch (. 9 centimeters), ½ inch (1.3 centimeters), etc.



What is the most common ratchet socket size?


3/8 inch
3/8 inch: The most common drive size, suitable for a wide range of applications. 1/2 inch: Used for larger, heavier-duty tasks.



How to find out oil drain plug size?


Measure Diameter
Measure the width of the plug at the widest part of the threads. If your plug measures 12mm you will need to start looking at plugs in the size range of “M12 x 1.25 to M12 x 1.75″. The “M12” refers to the diameter you measure from the widest part of the threads on your OEM sump plug.



Are all oil drain plugs the same size?


All drain plugs are not the same because all drain pans are not the same. OE manufacturers have different designs when it comes to their vehicle, so naturally, oil drain pans, drain plugs and gaskets are different too.



What size socket do I need to remove an oil plug?


3/8-inch
Place a 3/8-inch (0.9 centimeters) socket in the socket wrench, fit it over the drain plug's nut and turn it counterclockwise. The oil drain plug should open easily, draining the used oil from the engine. Make sure to place a bucket and some newspaper under the car's engine to catch all the draining oil.



What kind of wrench do I need to change oil?


First you'll need a ratchet and socket set to remove the oil drain plug, then an oil filter wrench to remove the filter. When choosing an oil filter wrench, try to find one that will match the specific filter and engages the serrations on the end of the oil filter to make the task easier.



What size ratchet do I need for an oil change?


Ratchet and Socket Set
Get a set that includes some metric and SAE sizes, and if you're starting out, a 3/8” drive should do just fine.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.