Best Spark Plugs

[Ramman70]

What are the best spark plugs for my 2020 Ram 1500 5.7L Hemi. Thanks!

 

[Wild one]

What are the best spark plugs for my 2020 Ram 1500 5.7L Hemi. Thanks!

OEM,and don't buy them from Amazon or Ebay,as those ones are fake knock-offs.

 

[xtryfun]

What are the best spark plugs for my 2020 Ram 1500 5.7L Hemi. Thanks!

For the 2020 5.7L Hemi, sticking close to OEM recommendations is usually the safest bet. Chrysler recommends NGK Laser Iridium plugs (part number 4879), and they work great for longevity and consistent performance. Some folks also like Denso Iridium Power as an alternative—they’re high quality and have similar heat ranges.
A few tips: make sure you use a torque wrench when installing, gap them according to spec (usually 0.040”), and check them every 30–50k miles if you want to keep peak performance. Iridium plugs last a long time, so it’s not something you’ll be swapping every year.

 

[Florida John]

I went to the NGK website and they recommend:

Laser Iridium Spark Plug LZFR5C1 -11
STOCK NEMBER#92145
* ACTUAL OEM MANUFACTURER

ANYONE USE THESE

Part Finder - NGK Spark Plugs

Search by application to find the part you need from NGK or NTK

ngksparkplugs.com

 

[Nick@GotExhaust]

OEM,and don't buy them from Amazon or Ebay,as those ones are fake knock-offs.

THIS 1000%

 

[Grams]

My 2012 as well as my 2015 had Bosch spark plugs. I replaced them with Champions at 100K on the ‘12 Ram and at 205K replaced them again with Champions and they still looked pretty new.
I used copper-plus plugs in the upper and iridium in the lower positions (except for brand, I followed the Mopar recommendation.)

 

[CanuckRam1313]

I've had great success using the NGK Ruthenium HX (96355 - LFR5AHX) plugs in my HEMI's.

These are not inexpensive plugs to purchase, and I save $150+CDN buying them from Rock Auto in the US vs here in Ontario, Canada. Even factoring in the CDN to US conversion and shipping.

 

[Stever68]

I thought about going with the NGKs but my mechanic that I've used for years says use Mopar plugs only, says he's seen NGKs and champions throw CEL lights.

Any one else have this issue? I mean there's only a $5 difference between the plugs so when the grand schema things the price difference is negligible I'm just curious