MSD Performance 37114 Spark Plug, 1IR4Y 4-pack

Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR4Y; [Available While Supplies Last];

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MSD iridium spark plugs will fire up your engine for optimum performance. These plugs have been engineered from the inside out for efficient combustion to create the most power possible for your setup. MSD's proprietary design features center tips made from iridium--a super hard material that promotes the best spark as well as increased resilience. They also feature copper center cores, special ceramic material to enhance the dielectric strength of the plug housing, and machine-ground straps enhanced with Yttrium to handle the heat of your high horsepower ignition. On the street, at the track, or up and over the trails, MSD iridium spark plugs will outperform and outlive the competition.

• Proprietary Ceramic Formula
• Unique Insulator Design
• Yttrium Copper Core
• Machined Electrode
• 1mm Iridium Tip
• Outlast Performance Plugs
• Improves Comprehensive Drivability And Economy
• Superior Design

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Application Summary:

Year	Make/Model
2005	Buick Allure
1987-1989	Buick Century
1993-2001	Buick Century
1994-2001	Buick LeSabre
1994-2001	Buick Park Avenue
1988-2001	Buick Regal
1995-1999	Buick Riviera
1987-1989	Buick Skyhawk
1994-1995	Buick Skylark
1987-1988	Cadillac Cimarron
1999-2000	Cadillac Escalade
1996-2005	Chevrolet Astro
1987-1996	Chevrolet Beretta
2005	Chevrolet Blazer
1988-1999	Chevrolet C1500
1996-1999	Chevrolet C1500 Suburban
1996-2000	Chevrolet C2500
1996-1999	Chevrolet C2500 Suburban
1996-2000	Chevrolet C3500
1995-2002	Chevrolet Camaro
1987-1993	Chevrolet Cavalier
1987-1990	Chevrolet Celebrity
1990-1996	Chevrolet Corsica
1996-2002	Chevrolet Express 1500
2006-2010	Chevrolet Express 1500
1996-2002	Chevrolet Express 2500
1996-2002	Chevrolet Express 3500
1995	Chevrolet G30
2002	Chevrolet Impala
2005-2008	Chevrolet Silverado 1500
2007	Chevrolet Silverado 1500 Classic
2013	Chevrolet Silverado 2500 HD
1996-2000	Chevrolet Tahoe
1997-2005	Chevrolet Venture
1996-1999	GMC C1500
1996-1999	GMC C1500 Suburban
1996-1999	GMC C2500 Suburban
1996-2000	GMC C3500
2005	GMC Jimmy
1996-1999	GMC K1500
1996-1999	GMC K1500 Suburban
1996-2000	GMC K2500
1996-1999	GMC K2500 Suburban
1996-2000	GMC K3500
1996-1999	GMC P3500
1996-2005	GMC Safari
1996-2002	GMC Savana 1500
2004-2013	GMC Savana 1500
1996-2002	GMC Savana 2500
2004-2005	GMC Savana 2500
1996-2002	GMC Savana 3500
2004-2009	GMC Sierra 1500
2007	GMC Sierra 1500 Classic
2004	GMC Sonoma
1996-2000	GMC Yukon
1994-1999	Oldsmobile 88
1994-1996	Oldsmobile 98
1994-1998	Oldsmobile Achieva
1999-2001	Oldsmobile Alero
1997-1999	Oldsmobile Cutlass
1987-1989	Oldsmobile Cutlass Ciera
1993-1996	Oldsmobile Cutlass Ciera
1987-1989	Oldsmobile Cutlass Cruiser
1988-1997	Oldsmobile Cutlass Supreme
1987-1988	Oldsmobile Firenza
1998-1999	Oldsmobile Intrigue
1996-1999	Oldsmobile LSS
1997-1998	Oldsmobile Regency
1987-1991	Pontiac 6000
2001-2002	Pontiac Aztek
1993-2002	Pontiac Bonneville
1995-2002	Pontiac Firebird