2013/2014 Hemi Spark Plug Replacement Cycle Differences
#1
2013/2014 Hemi Spark Plug Replacement Cycle Differences
The spark plug replacement cycle for a 2013 5.7L Hemi and older is 30K miles, while for the 2014's and newer is 100K miles. Does anyone know why the difference? Is the difference just a different type of spark plug or are there more differences, like between the ignition systems, or head design, or other?
#2
#3
http://www.ramforumz.com/showthread.php?t=143293
#4
#5
Looks like NGK Iridium are the preferred brand for 100K miles change intervals; make sure to also use anti-seize compound.
I found this on the Charger forum (link: http://www.lxforums.com/board/showth...rk-plug-life):
"Surfing around in another forum, someone asked the age old question "what spark plugs should I get for my 5.7" And the answers came back copper for the most part.
Then a 2014 Charger owner piped up and said his car had 100,000 plugs. Figuring he didn't know what he was talking about, I downloaded a copy of the 2014 Owners Manual. Sure as ****, 100,000 mile intervals.
So I went back and checked my Owners Manual again. 30,000 mile intervals. So, that's what I started to dig. Found some Mopar parts website and looked for the proper spark plugs for a 2014 Charger R/T.
Here's the part number:
SP143877AA
They're NKG Iridium spark plugs, not copper. Searching that part number I found another forum mentioning these were being used in the police package 5.7's. For those that drive a lot, this might be a nice upgrade. The cost per part is much higher over the copper plugs, but not having to monkey around for 3-4 hours every year would be nice"
I found this on the Charger forum (link: http://www.lxforums.com/board/showth...rk-plug-life):
"Surfing around in another forum, someone asked the age old question "what spark plugs should I get for my 5.7" And the answers came back copper for the most part.
Then a 2014 Charger owner piped up and said his car had 100,000 plugs. Figuring he didn't know what he was talking about, I downloaded a copy of the 2014 Owners Manual. Sure as ****, 100,000 mile intervals.
So I went back and checked my Owners Manual again. 30,000 mile intervals. So, that's what I started to dig. Found some Mopar parts website and looked for the proper spark plugs for a 2014 Charger R/T.
Here's the part number:
SP143877AA
They're NKG Iridium spark plugs, not copper. Searching that part number I found another forum mentioning these were being used in the police package 5.7's. For those that drive a lot, this might be a nice upgrade. The cost per part is much higher over the copper plugs, but not having to monkey around for 3-4 hours every year would be nice"
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#8
after taking out the coil packs hit the hole with compressed air and then hit each one with penetrating oil like PB Blaster. When u break a plug loose 1/-1/2 turn wait 1 minute the pb blaster will seep into the spark plug seat and then down the treads. They will all come out and go in by hand. I wish i had a piece of rubber hose to insert them with as my spark plug sockets rubber insert that holds the plugs in the socket keep falling out.