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Tracing the invention of automotive parts is tricky. And spark plugs are no different.

Who Invented the Spark Plug? A Brief History - Bike Restart

The lack of sufficient pieces of evidence, overlapping patent timelines, and debate among historians make it all the more confusing.

So who invented the spark plug? Jean Joseph Étienne Lenoir is attributed as the inventor of spark plugs. The first documented use of a spark plug in an internal combustion engine was by Étienne Lenoir in 1859.

The spark plug has, over the centuries and decades, undergone several design changes, development, and evolution to what we now see as the modern spark plugs.

Let’s look into the spark plug history in a bit more detail.

Spark Plug Invention

The first documented spark plug use was by Jean Joseph Étienne Lenoir in 1859.

And hence, Étienne Lenoir is regarded as the inventor of the spark plug.

Further evolution of the spark plugs include patents by Nikola Tesla, Frederick Richard Simms, and Robert Bosch at the start of the 20th century.

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