General description 4pcs Ignition Coils designed for Chevy Silverado, GMC Sierra, and Yukon models with engine sizes of 4.8L, 5.3L, and 6.0L. These coils are made from durable plastic and metal, featuring an electronic terminal type and a sleek black and silver color. Technical specifications Position: Engine Compartment Coil Type: Electronic Terminal Quantity: 4 Color: Black + Silver Material: Plastic + Metal Measurement allowed error: +/- 1-3 cm Compatibility and accessories Compatible with 5.3L 2004 for Escalade Compatible with 5.3L 2002-2005, 6.0L 2002-2006 for Express 1500 Compatible with 4.8L 2003-2007, 6.0L 2003-2007 for 2500 Compatible with 3500 5.3L 2003-2007, 6.0L 2003-2007 Compatible with 1500 4.8L 1999-2007, 5.3L 1999-2007 Compatible with 4.3L 2009-2011, HD 6.0L 2001-2007 Compatible with 1500 6.0L 2006, 2500 6.0L 2000-2006 Compatible with 4.8L 2000-2006, 5.3L 2000-2006 Compatible with 3500 6.0L 2001-2006 Compatible with C3 2001 6.0L 2001 Compatible with XL 1500 5.3L