While you should buy spark plugs in matching sets for your vehicle, not all spark plugs are universal. Spark plugs come in different sizes with different gaps and are manufactured using a variety of metals. Finding the ones that you need can be difficult.

Will any spark plug fit any car?

All spark plug manufacturers cross-reference their plugs with other brands so their brand can be interchanged with other brands. ... In other words, any brand of spark plug can be used in any vehicle make or model application assuming the plug has the correct dimensions, design and heat range.

Are spark plugs a standard size?

Most spark plugs require a 5/8" (16mm) size spark plug socket. This refers to the size of the flats on the spark plug that are in contact with the socket. 2 of 2 found this helpful.