Volvo part number 31293646 is an Exhaust Pipe to Manifold Gasket. It's specifically designed for the Volvo XC90 (2007-2014) with a 3.2L 6-cylinder engine. Function: This gasket seals the connection between the exhaust pipe and the manifold, preventing exhaust gases from leaking. Importance: A worn-out or damaged gasket can cause: Exhaust leaks Loss of engine power Increased fuel consumption Noise issues