Set of 6 ISA Ignition Coils and 6 NGK Spark Plugs Compatible with 2006-2009 Chevrolet Trailblazer 4.2L 256Cu. In. l6 2007-2012 GMC Canyon 3.7L 3654CC 223Cu. In. l5 Replacement for UF497

ISA Ignition Coils are designed with superior quality materials using only the highest grade material such as durable copper wire with OE manufacturer durability. ISA Ignition Coils are durable and reliable under extreme conditions and heavy load while providing quality electrical output, anti-corrosion, and abrasion tested resistance. Tested in real situations to perform with reliability and peace of mind. ISA's engineers have developed new technology to reduce common ignition issues such as: no start/hard start, crack failure, misfires, low power, inconsistent transmission shifts, spark plug fouling, premature catalytic converter failure, and other issues like poor fuel economy. ISA Ignition Coils are made to operate reliably under all conditions and throughout the entire engine speed range for peak engine performance. Compatible with: 2006-2007 Buick Rainier 4.2L 2007-2012 Chevrolet Colorado 2.9L 2007-2012 Chevrolet Colorado 3.7L 2006-2009 Chevrolet Trailblazer 4.2L 2007-2012 GMC Canyon 2.9L 2007-2012 GMC Canyon 3.7L 2012 GMC Canyon 5.3L 2006-2009 GMC Envoy 4.2L 2007-2010 Hummer H3 3.7L 2006-2007 Isuzu Ascender 4.2L 2006-2009 Saab 9-7x 4.2L Part number: ‎c1558, UF-497, 5C1615, UF497, NGK 5019 Shipping/Return/Warranty Free 2-day shipping (for most items) Free 30-day return (from date of delivery) 1 year warranty