The Supertech black-nitrided intake valve is a single replacement for Mitsubishi 4G63/4G63T engines. Offered individually, this intake valve is intended for engine service or cylinder head rebuilds requiring a direct-fit intake valve in those engines. The product listing notes the black-nitrided finish and single-piece ordering.
Supertech Mitsubishi 4G63/4G63T Black Nitrided Intake Valve - Single (Drop Ship Only)