NOTE: There are 2 different types of coils that could fit your vehicle. Ours is the SQUARE (UF271), not the ROUND (UF262). Please double check for the fitment details in the descriptions and part number, and verify that your original coils are of the square type before purchasing Vehicle Fitment-1: Coil Pack and Spark Plug Wires Compatible with Chevy Silverado 1500 1999-2006 V8 4.8L 5.3L, Silverado 1500 2003-2006 V8 6.0L, Silverado 1500 Classic 2007 V8 4.8L 5.3L 6.0L, Silverado 1500 HD 2001-2005 V8 6.0L, Silverado 1500 HD Classic 2007 V8 6.0L, Silverado 2500 1999-2000 V8 5.3L, Silverado 2500 1999-2004 V8 6.0L, Silverado 2500 HD 2001-2007 V8 6.0L, Silverado 3500 2002-2006 V8 6.0L, Silverado 3500 Classic 2007 V8 6.0L, Silverado 3500 HD 2007 V8 6.0L, Tahoe 2000-2006 V8 5.3L Vehicle Fitment-2: Spark Plugs Wires and Coil Packs Kit Compatible with GMC Sierra 1500 1999-2006 V8 4.8L 5.3L, Sierra 1500 2001-2006 V8 6.0L, Sierra 1500 Classic 2007 V8 6.0L, Sierra 1500 HD 2001-2005 V8 6.0L, Sierra 2500 2000 V8 5.3L, Sierra 2500 1999-2004 V8 6.0L, Sierra 2500 HD 2001-2007 V8 6.0L, Sierra 3500 2002-2006 V8 6.0L, Sierra 3500 HD 2007 V8 6.0L, Yukon 2001-2006 V8 4.8L 5.3L 6.0L, Yukon XL 2500 2000-2004 V8 6.0L, Savana 1500 2003-2005 V8 5.3L, Savana 2500 2003 V8 6.0L Reference Number: Ignition Coil Replacement for UF271 C1208 D581 5C1083 E226 52-1618 IC400 12558693 H6T55171ZC UF-271 12556893 12558693 12570553 19355500. Spark Plug Wires Replacement for 748EE 88892831. ENA ignition coils and spark plug wire sets feature durable materials and a plug-and-play design for easy installation with multi-vehicle compatibility for 1999-2009 Silverado 1500 2500 3500 Tahoe Suburban Avalanche Express Trailblazer Monte Carlo SSR Sierra 1500 2500 3500 Yukon Savana Envoy Escalade H2 NPR W22 4.8L 5.3L 6.0L V8 Specifications: Coil Pack: 1. Terminal Quantity: 4; 2. Mount Type: Bolt On; 3. Mounting Location: Valve Cover; 4. Voltage: 12V. Spark Plug Wire: 1. Core Material: Nickel chromium wire winding; 2. Insulation Material: Silicone Rubber; 3. Wire Diameter (MM): 8 mm; 4. Insulation Color: Blue. Package Content: Set of 8 Blue Square Ignition Coils Pack and 8 Blue Spark Plug Wires Set; 12-Month Warranty. Please use the Amazon Confirmed Fit function and enter your vehicle information for a correct compatibility Coils and Plug Wires Compatible with Chevrolet 1999 Silverado 1500 4.8L V8, 2000 Silverado 1500 4.8L V8, 2001 Silverado 1500 4.8L V8, 2002 Silverado 1500 4.8L V8, 2003 Silverado 1500 4.8L V8, 2004 Silverado 1500 4.8L V8, 2005 Silverado 1500 4.8L V8, 2006 Silverado 1500 4.8L V8, 1999 Silverado 1500 5.3L V8, 2000 Silverado 1500 5.3L V8, 2001 Silverado 1500 5.3L V8, 2002 Silverado 1500 5.3L V8, 2003 Silverado 1500 5.3L V8, 2004 Silverado 1500 5.3L V8, 2005 Silverado 1500 5.3L V8, 2006 Silverado 1500 5.3L V8, 2003 Silverado 1500 6.0L V8, 2004 Silverado 1500 6.0L V8, 2005 Silverado 1500 6.0L V8, 2006 Silverado 1500 6.0L V8, 2007 Silverado 1500 Classic 4.8L V8, 2007 Silverado 1500 Classic 5.3L V8, 2007 Silverado 1500 Classic 6.0L V8, 2001 Silverado 1500 HD 6.0L V8, 2002 Silverado 1500 HD 6.0L V8, 2003 Silverado 1500 HD 6.0L V8, 2004 Silverado 1500 HD 6.0L V8, 2005 Silverado 1500 HD 6.0L V8, 2007 Silverado 1500 HD Classic 6.0L V8, 1999 Silverado 2500 5.3L V8, 2000 Silverado 2500 5.3L V8, 1999 Silverado 2500 6.0L V8, 2000 Silverado 2500 6.0L V8, 2001 Silverado 2500 6.0L V8, 2002 Silverado 2500 6.0L V8, 2003 Silverado 2500 6.0L V8, 2004 Silverado 2500 6.0L V8, 2001 Silverado 2500 HD 6.0L V8, 2002 Silverado 2500 HD 6.0L V8, 2003 Silverado 2500 HD 6.0L V8, 2004 Silverado 2500 HD 6.0L V8, 2005 Silverado 2500 HD 6.0L V8, 2006 Silverado 2500 HD 6.0L V8, 2007 Silverado 2500 HD 6.0L V8, 2003 Silverado 2500 HD 8.1L V8, 2002 Silverado 3500 6.0L V8, 2003 Silverado 3500 6.0L V8, 2004 Silverado 3500 6.0L V8, 2005 Silverado 3500 6.0L V8, 2006 Silverado 3500 6.0L V8, 2003 Silverado 3500 8.1L V8, 2004 Silverado 3500 8.1L V8, 2005 Silverado 3500 8.1L V8, 2006 Silverado 3500 8.1L V8, 2007 Silverado 3500 Classic 6.0L V8, 2007 Silverado 3500 HD 6.0L V8, 2000 Suburban 1500 5.3L V8, 2001 Suburban 1500 5.3L V8, 2002 Suburban 1500 5.3L V8, 2003 Suburban 1500 5.3L V8, 2004 Suburban 1500 5.3L V8, 2005 Suburban 1500 5.3L V8, 2006 Suburban 1500 5.3L V8, 2002 Suburban 2500 6.0L V8, 2000 Tahoe 4.8L V8, 2001 Tahoe 4.8L V8, 2002 Tahoe 4.8L V8, 2003 Tahoe 4.8L V8, 2004 Tahoe 4.8L V8, 2005 Tahoe 4.8L V8, 2006 Tahoe 4.8L V8, 2000 Tahoe 5.3L V8, 2001 Tahoe 5.3L V8, 2002 Tahoe 5.3L V8, 2003 Tahoe 5.3L V8, 2004 Tahoe 5.3L V8, 2005 Tahoe 5.3L V8, 2006 Tahoe 5.3L V8, 2003 Trailblazer EXT 5.3L V8, 2004 Trailblazer EXT 5.3L V8, 2002 Avalanche 1500 5.3L V8, 2003 Avalanche 1500 5.3L V8, 2004 Avalanche 1500 5.3L V8, 2005 Avalanche 1500 5.3L V8, 2006 Avalanche 1500 5.3L V8, 2003 Avalanche 2500 8.1L V8, 2003 Express 1500 5.3L V8, 2004 Express 1500 5.3L V8, 2005 Express 1500 5.3L V8, 2006 Express 1500 5.3L V8, 2003 Express 2500 4.8L V8, 2004 Express 2500 4.8L V8, 2005 Express 2500 4.8L V8, 2003 E