The Supertech black nitrided intake valve for Toyota 4A‑GE 16V engines is a single replacement offered at +2mm oversize to accommodate valve seat machining in rebuilds. Sold individually, the oversize option provides substantial material for regrinding or cutting seats. The nitrided finish is noted in the description for buyers seeking treated valve surfaces.
Supertech Toyota 4AGE 16V Black Nitrided Intake Valve - +2mm Oversize - Single