You'll need just a few tools to change out the spark plugs on your car. The most important tool is a socket wrench with an extension and a spark plug socket. ... Tightening a spark plug too far could damage the plug or the threads in the cylinder head. Use a torque wrench to make sure you don't over-tighten your plugs.

Are there special sockets for spark plugs?

A spark plug socket is a special type of socket that is made specifically for removing and installing spark plugs without damaging them. ... Some have rubber inserts and others use magnets to hold the spark plug in place, making the job of installing or removing them much easier.

Are spark plug sockets different?

Spark plug sockets are much longer than standard sockets. This type of socket will also frequently come with a rubber insert that prevents the spark plug from becoming damaged while the wrench is working.