Sparkplug Change - what else is needed?

[Duece McCracken]

I've never seen a COP fail yet. OEM systems are built very well at this point, and unless you are running a ton of boost or w/mi I wouldnt be concerned. Plug gap adjustments would handle the bulk of everything.

As far as a N/A 3.6 is concerned, oem coilpacks, little bit of dielectric grease, torque them appropriately, OEM gap should be aces.

I have yet to look into aftermarket plugs for the Pentastar, but I tend to run iridium or ruthenium NGK's in my vehicles. More important for boosted applications though.

Sponsored

 

[mwilk012]

What spark plugs is everyone using? I can’t find any threads anywhere on what brand people are using. The stick mopar are $18 a piece.

Champion 9417, fairly cheap.

 

[Jeep’n Jay]

Champion 9417, fairly cheap.

Thanks, just ordered a set of those. They look comparable to the oem, probably the same plug.

 

[mwilk012]

Thanks, just ordered a set of those. They look comparable to the oem, probably the same plug.

Identical.

 

[jjvincent]

Mechanics picks are mandatory for the connectors. Jeep wiring harnesses are garbage and do not age well. Treat them like they are fine china.

Sponsored