Champion vs NGK spark plugs

[Dawnikenz]

I had changed out my spark plugs for my 2004 Jeep Wrangler 4.0 (don’t recall what brand old plugs were) and put champion in and they lasted alright. I got a misfire code recently and replaced them and my buddy picked me up the ngk plugs instead of champion, and a new coil pack. I also replaced the cam sensor and oil n filter. Still have the issue tho.
What I’m wondering is, is it really okay to put ngk plugs in a Chrysler engine? I’ve heard a lot of different takes on this, but I am kind of a novice so not really sure what to believe. Some people have said that even though it’s the right conversion that allegedly ngk isn’t as good? I simply don’t know. Thanks in advance.

 

[Carve]

Read the sticker under your hood. NGK V-Power is the factory plug. I just put 'em in my 04 and it runs fine.

I'd check your compression, or just try a can of engine restore. Maybe check for loose connections and wires, too.

 

[Rubicon88]

ZFR5N...

all day long brotha

 

[Rubicon88]

I had changed out my spark plugs for my 2004 Jeep Wrangler 4.0 (don’t recall what brand old plugs were) and put champion in and they lasted alright. I got a misfire code recently and replaced them and my buddy picked me up the ngk plugs instead of champion, and a new coil pack. I also replaced the cam sensor and oil n filter. Still have the issue tho.
What I’m wondering is, is it really okay to put ngk plugs in a Chrysler engine? I’ve heard a lot of different takes on this, but I am kind of a novice so not really sure what to believe. Some people have said that even though it’s the right conversion that allegedly ngk isn’t as good? I simply don’t know. Thanks in advance.

Too vague though...

Why don't you go into a little more detail on the what... and the why...
is happening.

 

[bobthetj03]

NGK is the factory plug in my 2003. Been running them ever since. At 187k miles.

 

[L J]

What I’m wondering is, is it really okay to put ngk plugs in a Chrysler engine?

Yes, NGK is a world class manufacturer and the plugs are the standard in everything from Jeeps to dirtbikes to lawncare equipment.

 

[CharlesHS]

Before you go replacing any more parts.... get some Mopar Combustion Chamber Cleaner and follow the instructions on how to clean the CC. A lot of random misfires can be attributed to carbon buildup in the combustion chamber.
Shortly after purchasing my '01 4.0L I had numerous misfires; so I changed the sparkplugs from Champion Platinums to NGK V Power I still had some random misfires. Performed a cleaning of the CC with the Mopar CC; the random misfires were gone. Periodically I pour a 16oz container of Sea Foam into the tank; the misfires remain gone....

 

[ColoJeep]

NGK

 

[Wtrask]

Yeah I agree get some combustion chamber cleaner or sea foam. I’ve run both plugs and didn’t see a difference the NGKs are supposed to last longer than the 12k champion plug change..