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Supertech black nitrided exhaust valves for Mitsubishi 4G63/4G63T are offered as a set of eight and listed for 4G63-series cylinder head replacement. The black nitrided finish is specified to provide a treated surface appropriate for exhaust service, making these valves suitable for routine rebuilds and valve swaps where OEM-equivalent sizing is required.
Supertech Mitsubishi 4G63/4G63T Black Nitrided Exhaust Valve - Set of 8
