Spark plugs

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Oct 14, 2016 | 07:42 AM

Skiingtuba

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From: SE Michigan

Spark plugs

Anyone have recommendations for spark plugs for 2010 5.4L. Looking at changing mine.

Oct 14, 2016 | 12:27 PM

f150doitpruitt

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Can never go wrong with motorcraft. But I recently replaced mine with e3 plugs and so far so good.

Oct 14, 2016 | 08:49 PM

dontnonottin

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Joined: Feb 2014

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From: Dover, PA

I installed e3 in ours almost 3 years ago. No problems in 23,000 miles since.

Feb 18, 2018 | 05:23 PM

Andrewgrengs

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I say stick with motorcraft any of those other plugs run hotter!

Feb 19, 2018 | 09:10 AM

techrep

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Motorcraft SP-509’s replace boots and springs too..

Feb 21, 2018 | 03:13 PM

Eric Kleven

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From: Mound, MN

Isn't it SP546 now?

Feb 22, 2018 | 06:02 AM

techrep

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Quote:

Originally Posted by Eric Kleven

Isn't it SP546 now?

Not for a 2010.. 5.4 3v motors built after 10/09/07 had the redesigned heads and require the SP509 and brown boots.

Last edited by techrep; Feb 22, 2018 at 06:04 AM.

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