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Spark plugs - Top 3 brands according to mechanics

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Updated 8 Apr 2021

Rowan Johnstone

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In 2019, spark plugs were the sixth most common repair booked through AutoGuru.

With so many spark plug jobs booked in every year, we were curious to find out what the top brands were that mechanical experts rely on to provide the spark for their customers.

So with that in mind, we turned to the 1,700 expert mechanics on AutoGuru, because we knew they’d have a pretty good idea of what brands you, as customers, should be asking for when getting new spark plugs.

We sent out a survey asking our partner mechanics what their preferred spark plug brands were. Here’s what we found out! These results are current as of February 2020.

1. NGK

87% of responses to our survey identified NGK as the preferred spark plug supplier.

Since being established in Japan in 1936, NGK has always been at the forefront of innovation and technology. They’re always exploring new ways to diversify and improve their products so that consumers get the very best!

Their reliable reputation means that mechanics know they’ll work every time they take one out of the box, which gives them confidence when fitting them to customers cars.

We wanted to find a little bit more about why mechanics preferred NGK spark plugs, so we decided to go around and do some interviews!

2. Bosch

Bosch came second on the list of preferred brands spark plug brands. Bosch has a rich history of auto parts manufacturing, and with this history comes a great sense of quality.

Speaking of history, Bosch has been around since 1886, so they’ve had plenty of time on the playing field!

They offer a complete range of spark plugs, from silver and copper to platinum and iridium.

3. Champion / Denso

Champion and Denso spark plugs both came in as the third most preferred spark plug brand for mechanics on AutoGuru.

Champion is an American brand and has been around since 1907. The famous Ford Model T was sparked by Champion, back in 1908.

Denso was founded in 1949, but back then it was called Nippon Electrical Equipments. They’ve been developing quality spark plugs and related tech since 1959.

So next time you get your spark plugs replaced, you now know of at least four quality brands that experts recommend.

If you’re unsure of the spark plugs that are being installed in your car, you can ask your mechanic if they can supply any of the above-mentioned brands, so you know you’re getting the very best quality.

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Written By

Rowan Johnstone

On weekdays Rowan can be found in the AutoGuru office, driving content and growth with the rest of the marketing team.

On weekends you’ll probably find him in the garage with his dad restoring a 1958 Ford Star Model Customline or enjoying a cruise through the Gold Coast hinterland on his Suzuki GSX-R600.

Despite his passion for being behind the wheel (or handlebars), he looks forward to the day when he can commute to work in his own driverless car.