Features: 1. Application: Fits for 2001-2010 GM Duramax 2500/3500 Diesel 6.6L. 2. Replacement: Everything to install/replace your engine oil cooler, replace for part number of 10263. 3. Feature: An easy way to test the oil cooler is to remove the oil filter and pressure test the cooling system. 4. Installation Tips: ??We suggestion would be to do it when you replace the water pump because the coolant tube can be moved much more. ??A second suggestion would be to do it when you’re flushing coolant because you’re going to drain all of the coolant to replace this. .
