va470 Posted April 15, 2009 Share Posted April 15, 2009 Hey guys I have finally left the german scene and bought a Lexus. It's an 04 gx470 with 78,000 miles but runs like new and was a one owner car. I know they call for 120k before changing the plugs, but I just can't wait that long so I am going to change them now. I know the OE are Denso Iridium SK20R11 but I ordered Denso Iridium IK20. Are they pretty much the same? Will I have an issue using them? Also they have these Spark Plugs Tube Gaskets, where do they go? I took out one of the plugs and did not see a gasket. Thanks for the help guys. Quote Link to comment Share on other sites More sharing options...
mann777 Posted April 16, 2009 Share Posted April 16, 2009 visit www.sparkplugs.com , on DENSO and you will have the answer. I recently had the change done, bought from sewell and it did not have one, so i presume they are standard issue. Quote Link to comment Share on other sites More sharing options...
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