Four Seasons 36973 Fan Clutch - Premium Replacement for Engine Cooling System - Perfect for Trucks, SUVs & Off-Road Vehicles in Extreme Weather Conditions

This worked perfectly for my '06 Chevrolet Express 3500 Van which has the 6.0L engine. Installation was easy (for a van) and it solved my temperature issues. As a side note, you should replace this clutch along with the water pump when the time comes. It is not much more work to replace both at the same time along with the coolant and thermostat on these engines so you might as well do the whole package.