Re: Best Spark Plug for 2010 3.7
I would ONLY buy exactly what came installed from the factory. Call your local dealer's parts counter and just ask whats the stock plug for your jeep. The last 8 digits of your VIN will help them along with referencing the plugs.
2008 WK Laredo 4x4
RC 2.5" Lift, Bilstein HD, Monroe LL, 265/70/17 General Grabber AT2, JK Moabs, 1.25" spacers, K&N 57 Series, PW Mod,
DDM 5k HID, VLED 6K LED Fogs, Stillen Covers, 15% front tint, BA System, Infinity 3.5" dash, JL Audio 250/1 & StealthBox