An Exhaust Valve Guide is found within the cylinder head of an internal combustion engine. It is a cylindrical metal sleeve that provides guidance and support for the exhaust valve stem. It is designed to ensure proper alignment and smooth movement of the exhaust valve as it opens and closes during the engine's operation.Attributes:• Durable and resistant to wear.• Resistant to high temperatures.• ⌀12.596 Gauge - 127 Long Must Pass Freely Through ⌀12.642±0.013.Applications:An Exhaust Valve Guide is used to provide a smooth and accurate path for the valve stem's up-and-down movement.