Description
Thermostat by-pass. 3.1L to intake manifold. 1997-00. 3.4 & 3.5L rear. 2001-04. 3.1L inlet. 3.4L. 2001-06 with oil cooler. This GM Genuine Part is designed engineered and tested to rigorous standards and is backed by General MotorsOriginal equipment parts are designed to work with your GM vehicle safety systems — aftermarket replacement parts may not meet the same OE safety regulations depending on the part type Engine Coolant Bypass Pipe.
