ECMRAD Aluminum Radiator is produced and designed to provide maximum cooling efficiency to prevent engine cooling failure. It is made of full aluminum light-weight, and high-heat transferring aluminum features a tube and fin design that, dramatically increases surface area that enables the heat to dissipate more efficiently. It has an increased durability over the factory plastic end tank radiator, and much inmprovwed engine cooling. Most importantly, it has a much higher capacity for coolant than stock ones, which means that your cooling system will be more efficient and will be more resistant to temperature surges in racing applications. This Aluminum Radiator Compatible for: for 1999-2014 Chevy Silverado 1500 2500 HD 4.3L 4.8L 5.3L 6.0L for 2000-2011 Chevy GMC Yukon 4.8/5.3 V8/GMC pickup Sierra 6.0 V8 for 2000-2011 Chevy Suburban / Tahoe 4.8 / 5.3 6.0 V8 for 1999-2011 Chevy Avalanche 1500 02-11/Silverado pickup 6.0 V8 for Chevy Silverado Suburban Tahoe Escalade 4.8 5.3 6.0 6.2 V8 for 2002-2011 Hummer H2 6.0 V8 03-09 & Cadillac Escalade 6.0 V8 Radiator Size Details: Core Size: 33.85" x 17.63" Overall Size: 39.60" x 19.00" Surface finish: Aircraft 5057 grade aluminum tank & core Radiator Cap: CNC machined filler neck and cap Aircraft 5057 grade aluminum and with raw aluminum finish Petcock Drain: OEM style brass petcock drain Trans Cooler Details are: Included, WILL FIT AUTOMATIC OR MANUAL TRANSMISSIONS Package Included: 1 X 3-Row Aluminum Radiator w/ Radiator Cap 1 X Aluminum Shroud 2 X 12" Fans (Includes mounting kits) 1 X Thermostat Relay Kit in a Carton Box