Denso Iridium Spark Plug Denso's Iridium power spark plugs help your vehicle achieve unparalleled performance. It alters the belief that a mere spark plug can add power and mileage. This is done by combining an ultra-fine 0.4mm diameter Iridium center electrode with a tapered cut U-groove ground electrode. Iridium conducts electricity better than platinum, however what makes it exceptional is it's also 6x harder and 8x stronger than platinum. Because of this, the center electrode can be machined down to 0.4mm. This ultra-fine iridium center electrode provides superior ignition performance during acceleration and top cruising RPM. The U-groove ground electrode creates a larger, brighter flame kernel. The tip of the ground electrode has been tapered which further improves firing performance by reducing quenching. All of these features combine to give more horsepower to your motor. Technical Specifications - 14mm Thread, 18mm (.708") Reach, 5/8" (16mm) Hex Size, Tapered Seat, Resistor, Removable Terminal, 0.4mm Iridium Center Electrode, Tapered Cut U-groove Ground Electrode, .044" (1.1mm) Gap
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Vehicles & Years
1997-1999 Audi A8
1997-1999 Audi A8 Quattro
1990-1994 Audi V8 Quattro
1989-1989 Buick Century
1987-1989 Buick Electra
1989-1989 Buick LeSabre
1989-1989 Buick Reatta
1987-1988 Buick Regal
1987-1990 Buick Riviera
1988-1989 Chevrolet Beretta
1992-1992 Chevrolet C1500
1991-1991 Chevrolet C2500
1991-1991 Chevrolet Camaro
1992-1992 Chevrolet Caprice
1989-1991 Chevrolet Cavalier
1988-1988 Chevrolet Celebrity
1987-1990 Chevrolet Corsica
1991-1991 Chevrolet G10
1991-1992 Chevrolet G20
1991-1992 Chevrolet G30
1991-1991 Chevrolet K2500
1976-1976 Chevrolet LUV
1992-1994 Chevrolet Lumina
1995-1995 Chevrolet Monte Carlo
1976-1976 Chevrolet Monza
1991-1991 Chevrolet S10
1991-1991 Chevrolet S10 Blazer
1975-1976 Chevrolet Vega
1990-1990 Dodge Monaco
1991-1991 Eagle 2000 GTX
1988-1988 Eagle Medallion
1991-1991 Eagle Summit
1989-1991 Eagle Vista
1987-1997 Ford Aerostar
1990-1993 Ford Bronco
1984-1990 Ford Bronco II
1983-1985 Ford C
1995-1998 Ford Contour
1990-1991 Ford Country Squire
1979-1982 Ford Courier
1996-2010 Ford Crown Victoria
1983-1983 Ford E-100 Econoline Club Wagon
2003-2010 Ford E-150
2003-2005 Ford E-150 Club Wagon
1992-2001 Ford E-150 Econoline
1983-2002 Ford E-150 Econoline Club Wagon
2005-2010 Ford E-250
1989-2002 Ford E-250 Econoline
1984-1991 Ford E-250 Econoline Club Wagon
2005-2005 Ford E-250 Super Duty
2003-2005 Ford E-350 Club Wagon
1998-2001 Ford E-350 Econoline
1984-2002 Ford E-350 Econoline Club Wagon
2005-2008 Ford E-350 Super Duty
2001-2002 Ford E-450 Econoline Super Duty Stripped
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