NOTE: There are 2 different types of coils that could fit your vehicle. Ours is the ROUND (UF262), not the SQUARE (UF271). Please double check for the fitment details in the descriptions and part number, and verify that your original coils are of the round type before purchasing Vehicle Fitment-1: Ignition Coil Pack Compatible with Chevy Silverado 1500 1999-2006 V8 5.3L 6.0L, Silverado 2500 1999-2000 V8 5.3L 6.0L, Silverado 2500 2001-2004 V8 6.0L, Silverado 2500 HD 2001-2006 V8 6.0L, Silverado 2500 HD Classic 2007 V8 6.0L, Silverado 3500 2001-2006 V8 6.0L, Tahoe 2000-2006 V8 5.3L, Suburban 2500 2000-2006 V8 6.0L, Avalanche 1500 2002-2006 V8 5.3L, Monte Carlo 2006 V8 5.3L, SSR 2004 V8 5.3L, Trailblazer EXT 2003-2004 V8 5.3L, Express 1500 2003-2007 V8 5.3L Vehicle Fitment-2: Ignition Coil Compatible with GMC Sierra 1500 1999-2006 V8 5.3L 6.0L, Sierra 1500 Classic 2007 V8 6.0L, Sierra 1500 HD 2002-2006 V8 6.0L, Sierra 2500 2000 V8 5.3L 6.0L, Sierra 2500 2001-2004 V8 6.0L, Sierra 2500 HD 2001-2007 V8 6.0L, Sierra 2500 HD Classic 2007 V8 6.0L, Sierra 3500 2003-2006 V8 6.0L, Sierra 3500 Classic 2007 V8 6.0L, Yukon 2000-2006 V8 5.3L 6.0L, Envoy XL 2003-2004 V8 5.3L, Rainier 2004-2005 V8 5.3L, Savana 2500 2005-2007 V8 6.0L ENA Ignition Coils Pack Reference Number: UF-262 UF262 D585 10457730 19005218 12563293 8104577300 610-02839 8125731900 12573190 C1512. ENA Ignition Coils Features: plug-and-play design that allows for easy installation and are compatible with popular vehicles such as 1999 2000 2001 2002 2003 2004 2005 2006 2007 Silverado Suburban Tahoe Avalanche Express Sierra Yukon Savana Escalade EXT H2 1500 2500 3500 4.8L 5.3L 6.0L V8 ENA Coil Packs Kit Specifications: 1. Terminal Quantity: 4; 2. Mount Type: Bolt On; 3. Mounting Location: Valve Cover; 4. Voltage: 12V. ENA ignition coil packs are engineered to ensure reliable ignition and consistent spark output. Package Content: Set of 8 Coil Packs; 12-Month Warranty. Drive forward with durable coil pack. Please enter your vehicle in your Amazon Garage above to see if this part is compatible with your vehicle Ignition Coil Set Compatible with Chevrolet 1999-2007 Silverado 1500 4.8L V8, 1999-2007 Silverado 1500 5.3L V8, 2003-2007 Silverado 1500 6.0L V8, 2002-2006 Silverado 1500 HD 6.0L V8, 1999-2004 Silverado 2500 6.0L V8, 1999-2000 Silverado 2500 5.3L V8, 2001-2007 Silverado 2500 HD 6.0L V8, 2007 Silverado 2500 HD Classic 6.0L V8, 2001-2007 Silverado 3500 6.0L V8, 2007 Silverado 3500 Classic 6.0L V8, 2007 Silverado 3500 HD 6.0L V8, 2000-2006 Tahoe 4.8L V8, 2000-2006 Tahoe 5.3L V8, 2000-2006 Suburban 1500 5.3L V8, 2000-2006 Suburban 2500 6.0L V8, 2002-2006 Avalanche 1500 5.3L V8, 2006 Monte Carlo 5.3L V8, 2004 SSR 5.3L V8, 2003-2004 Trailblazer EXT 5.3L V8, 2003-2007 Express 1500 5.3L V8, 2003-2007 Express 2500 4.8L V8, 2003-2005 Express 2500 5.3L V8, 2003-2006 Express 2500 6.0L V8, 2004-2007 Express 3500 4.8L V8, 2003-2007 Express 3500 6.0L V8, 2007 Silverado 1500 Classic 4.8L V8, 2007 Silverado 1500 Classic 5.3L V8, 2007 Silverado 1500 Classic 6.0L V8. Coil Pack Set Compatible with GMC 1999-2007 Sierra 1500 4.8L V8, 1999-2007 Sierra 1500 5.3L V8, 2002-2006 Sierra 1500 6.0L V8, 2007 Sierra 1500 Classic 6.0L V8, 2002-2006 Sierra 1500 HD 6.0L V8, 2000-2004 Sierra 2500 6.0L V8, 2000 Sierra 2500 5.3L V8, 2001-2007 Sierra 2500 HD 6.0L V8, 2007 Sierra 2500 HD Classic 6.0L V8, 2003-2006 Sierra 3500 6.0L V8, 2003-2005 Sierra 3500 8.1L V8, 2007 Sierra 3500 Classic 6.0L V8, 2007 Sierra 3500 HD 6.0L V8, 2000-2006 Yukon 4.8L V8, 2000-2006 Yukon 5.3L V8, 2001-2006 Yukon 6.0L V8, 2000-2006 Yukon XL 1500 5.3L V8, 2003-2006 Yukon XL 1500 6.0L V8, 2003-2004 Envoy XL 5.3L V8, 2004 Envoy XUV 5.3L V8, 2003 W3500 Forward 5.7L V8, 2004-2005 Rainier 5.3L V8, 2003-2007 Savana 1500 5.3L V8, 2003-2007 Savana 2500 4.8L V8, 2003-2005 Savana 2500 5.3L V8, 2005-2007 Savana 2500 6.0L V8, 2003-2007 Savana 3500 4.8L V8, 2003-2007 Savana 3500 6.0L V8. Coil Packs Compatible with Cadillac 2002-2006 Escalade 6.0L V8, 2003-2006 Escalade ESV 6.0L V8, 2002-2006 Escalade EXT 6.0L V8, 2002-2005 Escalade 5.3L V8. Coil Packs Kit Compatible with Hummer 2003-2007 H2 6.0L V8