The Supertech black nitrided intake valve for Toyota 4A‑GE 20V engines is a single replacement valve for maintenance and rebuilds. Listed as an individual component, the black nitrided surface treatment is included in the description. This option supports valve service where buying single intake valves is practical for selective replacement during repairs.
Supertech Toyota 4AGE 20V Black Nitrided Intake Valve - Single (Drop Ship Only)