General description 5Pcs Ignition Coil Coils designed for 2006-2012 models with 2.9L, 3.7L, and 4.2L engines. These ignition coils are built to quality control standards and are ready to use as direct replacements. They are superior quality parts that have been 100% factory tested and replace dealer part numbers: UF497, 12596547, 12612369, 8125965470, and W0133-1933213. Technical specifications Color: Black Material: ABS Package Contents: 5 x Ignition coils Measurement allowed error: +/- 1-3cm Compatibility and accessories 2007-2012 2.9L L4 2007-2012 3.7L L5 2006-2009 Trailblazer 4.2L L6 2006-2009 Envoy 4.2L I6 2007-2010 H3 3.7L L5 2009-2010 H3T 3.7L L5 2006-2007 Ascender 2006-2009 9-7X 4.2L L6