Dana engineering-approved for fit, form and function. 2006 Chevrolet Trailblazer Engine: 5.3L V8; with Dual Round Ports; Replaces OE Part Number(s) 12561710; Position: Center;. 2006 Chevrolet Trailblazer Engine: 6.0L V8; with Dual Round Ports; Replaces OE Part Number(s) 12561710; Position: Center;.
