4Pcs Ignition Coil Pack Fits Chevy Trailblazer Blazer Gmc Envoy Hummer H3 Isuzu Ascender 2.8L 2.9L 3.5L 3.7L 4.2L I4 I5 I6 UF303 C1397 COMPATIBLE VEHICLES - Please check the description or use the year/make/model drop down bar and interchangeable part numbers to confirm the compatibility before purchase IGNITION COILS for, but not limited to 2.8L, 2.9L, 3.5L, 4.2L engine displacements, Buick Rainer 2004 to 2005, Chevrolet Trailblazer 2002 to 2005, Colorado 2004 to 2006, GMC Canyon 2004 to 2006, Envoy 2002 to 2005, Envoy XL 2002 to 2005, Envoy XUV 2004 to 2005, Hummer H3 2006, Isuzu Ascender 2003 to 2005, I-280 2006, I-290 2007 to 2008, I-350 2006, I-370 2007 to 2008, Oldsmobile Bravada 2002 to 2004, Saab 9-7X 2005 and 2009 Buick, Chevy, GMC, Hummer, Isuzu, Oldsmobile, and Saab owners please check fitment bar and description before you BUY IT as the ignition coil pack can change based on the year/ month of manufacture of your vehicle Compatible Part Numbers: E255, Ic414, 12568062, E255, 52-1743, GN10114, IC414, 12568062, UF-303, 19300921, DW01659, 8-12568-062-0 COMPATIBLE WITH OEM NUMBERS - UF-303, 28310, 28315, 1788390, IC051218, UF303T, D502A, 521743, DR1707, 5073, 1C414, HPUF303, UF-303, 11173596, C303, 12114, UF303G, LTR5GP