The strategic use of iridium provides durability while maintaining optimal conductivity. RL 3.7 AWD 2008-2013 J37A2. MDX (YD2) 3.7 AWD 2006- J37A1. For Acura LEGEND IV (KB_) 3.7 VTEC V6 4WD (KB2) 2008-2013 J37A2,J37A3.
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