MSD Performance 3712 Spark Plug, 1IR5L, Single

Iridium Tip Spark Plug; Single; Plug Type 1IR5L; 14 mm. Thread; 0.6910 Reach;

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MSD's spark plugs are engineered to improve the efficiency of the combustion process to create the most power possible combined with increased durability. The center tip of the plug is made from iridium to promote the best spark and increase resilience. A proprietary ceramic material enhances the dielectric strength of the plug housing forcing the spark, even under extreme cylinder pressures, to jump across the plug gap to the ground electrode. This electrode is machined to expose more spark to the incoming gases to promote the most effective combustion event possible.

• Proprietary Plug Design Inside And Out
• Designed For Use On High Performance Vehicles
• Machined Electrode Increases Exposure
• MSDs Proprietary Ceramic Formula
• Yttrium Ground Electrode Reduces The Chance Of Pre-Ignition
• Iridium Tip Improves Cold Starts
• All Spark Plugs Tested Prior To Packaging And Shipping
• Unique Insulator Design Improves Spark Isolation
• Lower Voltage Requirements For Longer Coil Life

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Application Summary:

Year	Make/Model
2008-2009	Buick Allure
2008-2009	Buick LaCrosse
1994-1995	Cadillac DeVille
2007-2011	Cadillac Escalade
2007-2013	Chevrolet Avalanche
2002-2006	Chevrolet Avalanche 2500
1996-2003	Chevrolet Blazer
1996-1998	Chevrolet C1500
2010-2011	Chevrolet Camaro
1994-1996	Chevrolet Caprice
2011	Chevrolet Caprice
2009-2011	Chevrolet Colorado
2011-2013	Chevrolet Corvette
1996-2003	Chevrolet Express 1500
2008-2013	Chevrolet Express 1500
1996-2003	Chevrolet Express 2500
2007-2013	Chevrolet Express 2500
2001-2002	Chevrolet Express 3500
2007-2013	Chevrolet Express 3500
2009	Chevrolet Impala
1996-2003	Chevrolet S10
1999-2004	Chevrolet Silverado 1500
2007-2013	Chevrolet Silverado 1500
2007	Chevrolet Silverado 1500 Classic
2007	Chevrolet Silverado 1500 HD Classic
2002	Chevrolet Silverado 2500
2005-2013	Chevrolet Silverado 2500 HD
2007	Chevrolet Silverado 2500 HD Classic
2001-2006	Chevrolet Silverado 3500
2007	Chevrolet Silverado 3500 Classic
2011	Chevrolet Silverado 3500 HD
2007-2013	Chevrolet Suburban 1500
2001-2013	Chevrolet Suburban 2500
2007-2011	Chevrolet Tahoe
2008-2009	Chevrolet Trailblazer
1998-2002	Ford E-150 Econoline
1998-2002	Ford E-250 Econoline
1996-1998	GMC C1500
2009-2011	GMC Canyon
2008-2009	GMC Envoy
1996-2003	GMC Jimmy
1996-1998	GMC K1500
1996-2013	GMC Savana 1500
1996-2013	GMC Savana 2500
2001-2002	GMC Savana 3500
2007-2013	GMC Savana 3500
1999-2013	GMC Sierra 1500
2007	GMC Sierra 1500 Classic
2001-2003	GMC Sierra 1500 HD
2005	GMC Sierra 1500 HD
2007	GMC Sierra 1500 HD Classic
2001-2007	GMC Sierra 2500 HD
2013	GMC Sierra 2500 HD
2007	GMC Sierra 2500 HD Classic
2001-2006	GMC Sierra 3500
2007	GMC Sierra 3500 Classic
2012	GMC Sierra 3500 HD
2005	GMC Yukon
2007-2013	GMC Yukon
2005-2013	GMC Yukon XL 1500
2001-2007	GMC Yukon XL 2500
2012-2013	GMC Yukon XL 2500
2008-2009	Hummer H2
2008-2010	Hummer H3
2009-2010	Hummer H3T
2003-2005	Isuzu Ascender
1997-1999	Isuzu Hombre
1996-2001	Oldsmobile Bravada