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Shop over 20,000 new auto parts at TXN Supply Co. New Texas stock. Confirm part number for fitment. Free shipping on every US order.

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8 Pack NGK Iridium IX Spark Plugs 2001-2002 for GMC Savana 3500 V8 8.1L $117.77
8 Pack NGK Iridium IX Spark Plugs 2001-2003 for Chevrolet Silverado 3500 V8 8.1L $117.77
8 Pack NGK Iridium IX Spark Plugs 2001-2003 for Chevrolet Suburban 2500 V8 8.1L $117.77
8 Pack NGK Iridium IX Spark Plugs 2001-2006 for GMC Sierra 2500 HD V8 8.1L $117.77
8 Pack NGK Iridium IX Spark Plugs 2001-2006 for GMC Sierra 3500 V8 8.1L $117.77
8 Pack NGK Iridium IX Spark Plugs 2002-2004 for Chevrolet Avalanche 2500 V8 8.1L $117.77
8 Pack NGK Iridium IX Spark Plugs 2004 for Ford E-150 Club Wagon V8 5.4L $117.77
8 Pack NGK Iridium IX Spark Plugs 2004 for Ford E-350 Club Wagon V8 5.4L $117.77
8 Pack NGK Iridium IX Spark Plugs 2004 for Mercury Marauder V8 4.6L $117.77
8 Pack NGK Iridium IX Spark Plugs 2004-2005 for Lincoln Aviator V8 4.6L $117.77
8 Pack NGK Iridium IX Spark Plugs 2004-2005 for Mercury Mountaineer V8 4.6L $117.77
8 Pack NGK Iridium IX Spark Plugs 2004-2014 for Ford E-250 V8 4.6L (2) $117.77
8 Pack NGK Iridium IX Spark Plugs 2004-2014 for Ford E-250 V8 5.4L $117.77
8 Pack NGK Iridium IX Spark Plugs 2004-2015 for Ford E-350 Super Duty V8 5.4L $117.77
8 Pack NGK Iridium IX Spark Plugs 2006-2014 for Ford E-150 V8 4.6L $117.77
8 Pack NGK Iridium IX Spark Plugs 2006-2014 for Ford E-150 V8 5.4L $117.77
8 Pack NGK Iridium IX Spark Plugs 2008-2009 for Cadillac XLR V8 4.6L $117.77
8 Pack NGK Iridium IX Spark Plugs 2008-2010 for Cadillac SRX V8 4.6L $117.77
8 Pack NGK Iridium IX Spark Plugs 2008-2011 for Buick Lucerne V8 4.6L $117.77
8 Pack NGK Iridium IX Spark Plugs 2008-2011 for Cadillac DTS V8 4.6L $117.77
Champion 821 Copper Plus Spark Plug 821M L77JC4 - 4 Pack (8) $22.77
Champion 821 Copper Plus Spark Plug 821M L77JC4 - 4 Pack (8) $22.77
Champion 821 Copper Plus Spark Plug 821M L77JC4 - 4 Pack (8) $22.77
Sold out NGK 3932 Spark Plug DCPR7E - 4 Pack $35.77
Sold Out

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Over 20,000 auto parts in stock — shipped fast from Texas.

About Us

TXN Supply Co is a Texas-founded online auto parts store built for drivers, DIYers, and fleet operators who need the right part without the runaround. Our catalog includes over 20,000 automotive parts in stock — from spark plugs and iridium plugs to oil filters, air filters, oxygen sensors, ignition components, and specialty chemicals.

We carry trusted brands including NGK, Champion, ACDelco, Motorcraft, Autolite, Permatex, Lucas Oil, and ATP — OEM-quality parts shipped fast across the U.S. with free shipping on every order. Real Texans behind every order, ready to help with fitment and product questions.

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