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-   -   Best Spark Plug for 4.7? (http://www.jeepgarage.org/f77/best-spark-plug-for-4-7-a-14408.html)

SoCalMoparWK 10-26-2010 05:57 AM

Best Spark Plug for 4.7?
 
Gonna be changing out my serpentine belt with a Gatorback, but I need to know the best spark plug for my WK 4.7. Thanks

Scottina06 10-26-2010 06:26 AM

Re: Best Spark Plug for 4.7?
 
stock or equivelant copper plug

SoCalMoparWK 10-26-2010 07:50 AM

Re: Best Spark Plug for 4.7?
 
So nothing special like Platinum, Double Platinum, or Iridium?

SvenskaJeepGuy 10-26-2010 01:53 PM

Re: Best Spark Plug for 4.7?
 
copper champions only, thats oem

SoCalMoparWK 10-26-2010 02:53 PM

Re: Best Spark Plug for 4.7?
 
ok

05quadratrac 10-27-2010 01:16 PM

Re: Best Spark Plug for 4.7?
 
I was told to only use stock copper core. I didnt use OEM, Autozone didnt carry them but I used autolite copper core which are the same thing and it works perfect.

2005JGC 11-17-2010 03:40 PM

Re: Best Spark Plug for 4.7?
 
if you look on the emissions sticker under the hood it will have a sparkplug number printed on it. Ill tell you this now, if you ever have a drivability concern that is not pointing to any one specific thing and you bring it to the dealer, if you dont have the factory plugs in there expect to be sold a tuneup before further diagnosis. Chrysler engines are really picky about the plugs...

scjeep4.7HO 11-17-2010 08:10 PM

Re: Best Spark Plug for 4.7?
 
NGK Iridiums. That's all I use

FlyinRyan 11-19-2010 02:33 AM

Re: Best Spark Plug for 4.7?
 
I always used the stock Champions, but I did try Motorcraft Platinums once. The truck ran well with them.


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