2006-2009 Chevrolet Trailblazer 4.2L 6 Cyl. 2002-2005 Chevrolet Trailblazer. Computerized machined surfaces for proper fit/sealing. Precisely balanced impeller for OE Fit/Function. Ensure Proper FitTo confirm that this part fits your vehicle, enter your vehicle's Year, Make, Model, Trim and Engine in the Compatibility Table.