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Those 'long' plugs are notorious, at least in some Ford V8 engines.
The long threaded part is long so the plug tip will reach the
combustion chamber in thick OHC engine heads. Those--the Ford
plugs--are made in two parts, and are known to separate when being
removed. Much hilarity ensues.<br>
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<div class="moz-cite-prefix">On 4/16/2022 9:30 AM, Pat Horne wrote:<br>
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I was just thinking about this thread the other day!
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<div>I’ve never seen these plugs before. I just pulled the plugs
on my 06 caravan & thought IT had long plugs. Must be an odd
feeling when you unscrewed them. </div>
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<div>Peace,</div>
<div>Pat<br>
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<div dir="ltr">Pat Horne
<div>We support Habitat for Humanity</div>
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On Apr 16, 2022, at 11:25 AM, Jim Stone
<a class="moz-txt-link-rfc2396E" href="mailto:1789alpine@gmail.com"><1789alpine@gmail.com></a> wrote:<br>
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It has been quite a while since I asked this question but I
finally got around to putting in the new plugs yesterday and
wanted to share my thoughts now that I have some experience.
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<div>The bottom line is consistent with the general consensus
of the group: I could not see any difference between the
original plugs and the new ones. Here are a couple of
photos:</div>
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<div><img alt="image0.jpeg"
src="cid:part1.ULbSChfi.awllOu4i@comcast.net" class=""><img
alt="image1.jpeg"
src="cid:part2.qsTISxo9.eEU87Ygg@comcast.net" class=""><img
alt="image2.jpeg"
src="cid:part3.Z4gbK8ME.MS8QAXtj@comcast.net" class=""><br>
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<div><br>
We’re on the road right now (my wife is driving) and there
is no discernible difference that I can feel.</div>
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<div>So, to confirm the group’s answer to my original question
for anyone else who might be curious, I’d say there is no
reason to pay the ridiculous OEM markup for the exact same
part. </div>
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<div>Jim</div>
<div><br>
<div dir="ltr">Sent from my iPhone</div>
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<blockquote type="cite">On Oct 21, 2021, at 7:34 PM, Jim
Stone <a class="moz-txt-link-rfc2396E" href="mailto:1789alpine@gmail.com"><1789alpine@gmail.com></a> wrote:<br>
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<div dir="ltr">My 2017 Honda Ridgeline is approaching its
105,000 mile service, which is a big one. New timing
belt is the main event, but Honda also recommends new
spark plugs. I did the timing belt on my old Ridgeline
at 220,000 (it’s 3rd belt) but it was a PITA and I don’t
think I want to take any chances on a newer, more
valuable vehicle. Spark plugs are a different story and
the dealer gets over $300 to do those!
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<div class="">The reason changing plugs is so expensive
is Honda’s price for the plugs themselves. They list
at $55 <u class="">each</u>, although you can get
them discounted for the low, low price of about $40
each if you shop around. <a
href="https://www.hondapartsconnection.com/oem-parts/honda-spark-plug-dilzkr7b11g-ngk-12290r9pa01"
class="moz-txt-link-freetext" moz-do-not-send="true">https://www.hondapartsconnection.com/oem-parts/honda-spark-plug-dilzkr7b11g-ngk-12290r9pa01</a>
But, here is where it gets interesting: The owner’s
manual lists the plugs as NGK DILZKR7B11G, a number
you can clearly see on the Honda box in the above
link. NGK lists that plug as $18 each (<a
href="https://www.ngk.com/ngk-95350-dilzkr7b11g-laser-iridium-spark-plug"
class="moz-txt-link-freetext" moz-do-not-send="true">https://www.ngk.com/ngk-95350-dilzkr7b11g-laser-iridium-spark-plug</a>)
and you can find them at Rock Auto for about $12.</div>
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<div class="">Ridgeline owners seem to be divided as to
whether the plugs in the NGK box are any different
from the ones in the Honda box. I trust this group
more than fellow Ridgeline owners. What do you guys
say? Are the plugs in the Honda box likely to be
different and worth an extra $170?</div>
<div class=""><br class="">
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<div class="">Jim</div>
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