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Supertech manganese bronze intake valve guides for Nissan SR20DET and RB26 engines are supplied as a set of 12 with a 6mm stem size. Listed for those engine families, the manganese bronze material and specified stem diameter indicate compatibility with the intake valve dimensions used in SR20DET and RB26 cylinder heads, serving as a direct replacement option where that guide size is required.
Supertech Nissan SR20DET / RB26 Manganese Bronze Intake Valve Guide 6mm Stem - Set of 12
