Iridium Platinum Spark Plugs Compatible with Mercedes-Benz CL550, Pack of 8:Description:[Reference Number]: A-Premium Spark Plugs fit for 93911, LKR7AIX, XP5702, 08040K9000, BY480LKR7A, SAB330NG1709[Vehicle Fitment]: Compatible with GL450 spark plugs; Compatible with Mercedes-Benz CL550 C216 2007-2010 V8 5.5L, CLK550 C216 2007-2009 V8 5.5L, CLS550 C216 2007-2011 V8 5.5L, E550 W212 2007-2011 V8 5.5L, G550 2009-2015 V8 5.5L, GL450 X164 2007-2012 V8 4.7L, GL550 X164 2008-2012 V8 5.5L, ML550 X164 2008-2011 V8 5.5L, R550 W251 2008-2008 V8 5.5L, S450 W221 2008-2011 V8 4.7L, S550 W221 2007-2011 V8 5.5L, SL550 R230 2007-2012 V8 5.5L[Specifications]: ①Center Electrode Tip Material: Iridium; ②Center Electrode Core Material: Platinum; ③Resistance (ohms): 5000; ④Gap Size (IN): 0.032; ⑤Hex Size (IN): 5/8; ⑥Insulator Height (mm): 50.50; ⑦Reach (mm): 26.5; ⑧Thread Diameter (MM): 12.00[Exceptional Ignitability]: Designed alongside OEMs and engineered for maximum ignition performance