From what I can tell Mopar part # SP143877AA are the iridium plugs that are in the police special Ram. They also show up as the plugs that are now standard in the 2014 Ram. I've read of a few people using them in older Ram's with success. I've also heard the new Ram's have a different coil pack that allows these plugs to work. Does anyone here have any first hand experience with these plugs in an older Ram?
I've already done two plug changes on my 2011 and it's no big deal for me to continue to use the copper plugs but if I can possibly improve performance and increase mileage between plug changes I may give the iridium plugs a try.
Thanks in advance for any info.
Rich
I've already done two plug changes on my 2011 and it's no big deal for me to continue to use the copper plugs but if I can possibly improve performance and increase mileage between plug changes I may give the iridium plugs a try.
Thanks in advance for any info.
Rich