100% Factory tested. new ignition coil pack,never used or installed. Built to quality control standards. Ready to use, Direct Replacement. Superior quality part with copper wire inside, High Durability. with import oxygen ring resin,good insulation. Replaces part number: Iignition coil: 12556893, 12558693, 12570553, 3859078, 392889925, D581,-271,38590782. Spark plugs: 41-962 19299585 Wires: M8-48322R 9059 9748hh 9748uu 9748rr 88862385 Fitment: for Escalade (2002 - 2006), for 1500 (2002 - 2006), for 2500 (2003 - 2006), for Express 1500 (2003 - 2006), for Express 2500 (2003 - 2005), for Express 3500 (2003 - 2004), for 2006, for 1500 (1999 - 2006), for 2500 (1999 - 2007), for 3500 (2001 - 2007) for (2003 - 2004) for Ssr (2003 - 2004) for 1500 (2000 - 2006) for 2500 (2000 - 2006) for (2000 - 2006) for Trailblazer (2003 - 2004) for Envoy (2003 - 2004) for 1500 (2003 - 2005) for 2500 (2003 - 2005) for 3500 (2003 - 2005) for 1500 (1999 - 2007) for 2500 (1999 - 2007) for 3500 (2001 - 2007) for (2000 - 2006) for Xl 1500 (2000 - 2006) for Xl 2500 (2000 - 2006) for H2 (2003 - 2007) for All Models (2001 - 2007) for Workhorse Ft1061 (2004 - 2005) for Workhorse Ft1261 2005 for Workhorse Ft1461 (2004 - 2005) for Workhorse Ft1601 (2004 - 2005) for Workhorse Ft1801 (2004 - 2005) Color: Red & Black Material: Metal + ABS Package Contents: 8x Ignition Coils 8x Spark plugs 8x wire (Including accessories) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.