Engine exhaust valve

The engine's exhaust valve controls the flow of exhaust gases from the combustion chamber into the exhaust port of the cylinder head. It is subjected to extremely high thermal and mechanical stresses, as it is constantly in contact with hot combustion gases. Exhaust valves are therefore usually made of heat-resistant special steels or alloy materials and are precisely matched to the valve head, valve stem, stem diameter, length, and seat angle. A clean seal at the valve seat is crucial for compression, performance, emissions, and smooth engine operation. Wear, burnt valve heads, bent valves, or worn stems can lead to power loss, starting problems, or increased oil consumption. When overhauling an engine, exhaust valves should always be selected precisely according to the vehicle and engine specifications. At Autoteile Gossau, you will find exhaust valves in original and aftermarket quality for many vehicle models. Benefit from the lowest prices in Switzerland, fast delivery, and the option of in-store pickup with direct cash or card payment.