Is your old GM truck's radiator starting to leak or just not keeping up anymore? Upgrade to this ALLOYWORKS all-aluminum radiator. It's a beast built for better cooling and long-lasting reliability. This is a direct replacement for a ton of popular GM SUVs and trucks from 1999 to 2012, including Chevy Silverado, Tahoe, Suburban, GMC Sierra, Yukon, and Cadillac Escalade with the 4.8L or 5.3L V8 engines (just make sure your specific model doesn't have an engine oil cooler in the radiator – this one doesn't include that). It's constructed entirely from T-5057 aircraft-grade aluminum, with the tanks 100% TIG-welded for strength. The core is a high-performance 3-row, 28-core design that provides about 30% more cooling capacity than a standard factory radiator. That means it can handle towing, hot weather, or just general engine heat much more effectively. The overall size is 34\ long by 18.5\ high, with a core measuring 28\ long by 17\ high. It has the OEM-style brass petcock drain and includes a built-in transmission cooler. The inlet hose (driver side) is 1 5/16\ and the outlet (passenger side) is 1 9/16\. Installation is straightforward as it's designed to bolt right into the factory location. If you're looking for a durable, efficient cooling upgrade that won't break the bank, this all-aluminum radiator is a solid choice to keep your truck running cool for years to come.