Skip the auto shop - Our mechanics make house calls

Q: Spark Plug Socket size and extension bar

asked by on

I want to buy spark plug socket for my santa fe but i do not know which size (metric) the socket should be. Also, I heard extension bar in required to reach the deep plug. How long should the extension bar be? Thanks in advance.

My car has 142034 miles.
My car has an automatic transmission.

Depending on your preference I would recommend a spark plug socket 5/8 with at least a 8 to 10 inch extension. Get the locking type of extension to lock to the socket so it will not get stuck on the spark plug when removing it.

Personally, I use an extension attached with the socket but I also have a long extension with a socket that is permanently attached. I need to use these in different scenarios due to the vast amount of different types of cars and trucks I work on. You basically only need the locking extension and 5/8 socket. This will do the trick for you. If you’re unsure and don’t feel comfortable doing the job yourself, I’d recommend having a mechanic switch out the plugs for you.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: My check engine light came on

You can try and have the throttle body and idle control valve cleaned first and code cleared. If the code returns then you will need to have the computer program updated for this code. There is a technical bulletin #13-FL-005....

Q: If a timing chain isnt put on right can that stop the car from starting ?

Hello, thank you for writing in. You are correct. If the timing belt is broken, installed wrong, or the engine is off time for any reason, the vehicle may not start. If you have had recent repairs made to the...

Q: Is it possible to change the system to the polish language?

Hi there. I will send your inquiry to our tech department to see if they can add language options.

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...