Spark Plugs: Male Spark Plug, Female Wire, What Gives?

I’m sure that every half-capable home auto mechanic on the planet already knows this, but if you’re a total spark plug amateur like I was this afternoon, this might save you some time.

Sometimes your spark plug wires have female plug connectors, and sometimes they’re male. Same goes for spark plugs. I bought plugs this morning and they had female ends, and so did my wires, like this:

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I thought I had purchased the wrong plugs so I headed back to the auto parts store. Turns out — ta-da! — the ends of spark plugs are removable; you just unscrew the female ends to reveal the male connector. I felt dumb but I’m glad I know.
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I had to use a pair of pliers to break the ends free, but they came right off. Anyway, if you’re having this problem, now you know.

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