Description:

[Vehicle Fitment-1]: Compatible with Alfa Romeo 164 1994-1995/1991-1993(Sport) V6 3.0L; Compatible with Jaguar Vanden Plas 1988-1989(L6 3.6L)/1990-1992(L6 4.0L), XJ6 1987-1989(L6 3.6L)/1990-1992/1995-1996(L6 4.0L), XJR 1995-1996 L6 4.0L, XJS 1992/1995-1996 L6 4.0L; Compatible with Mitsubishi 2003 Eclipse V6 3.0L (GTS/Spyder GTS), Montero 2003-2006 V6 3.8L; Compatible with Nissan 1990-1994 D21/1990-1995 Pathfinder/1995 Pickup V6 3.0L. [Vehicle Fitment-2]: Compatible with Porsche 911 2007-2008(Turbo)/2008(GT2)/2009(Turbocharged) H6 3.6L; Compatible with Volvo 960 1992-1994/S80 2002-2005/SC90 2003-2005 L6 2.9L, S80 1999-2001 L6 2.8L(Turbocharged)---6x Iridium and Platinum Spark Plugs. [Reference Number]: 6507, IFR6B. [Specifications]: Center Electrode Tip Material: Iridium; Center Electrode Core Material: Platinum; Resistance (ohms): 5000; Gap Size (IN): 0.027-0.031; Hex Size (IN): 5/8; Insulator Height (mm): 50.5; Reach (IN): 0.75; Thread Diameter (MM): 14. [Engineered for Longevity]: For optimal engine performance and longevity, it is recommended to replace platinum iridium spark plugs at mileage intervals of 80,000 to 100,000 miles.