The Supertech retainer set is specified for Toyota 2ZZ-GE engines and is described as factory-style locks with a 5.5mm stem and 6-degree geometry. These retainers are intended to work with the 2ZZ-GE valvetrain, preserving factory lock dimensions and stem clearance for reliable valve retention during service or component replacement on compatible engines.
Supertech Toyota 2ZZ-GE 5.5mm Stem 6 Degree Factory Locks Retainer