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Supertech manganese bronze valve guides for Mazda MZR 2.3L engines, supplied as a set of 8. These intake and exhaust guides fit 6mm valve stems and are sized to restore proper valve-to-guide clearance in head rebuilds. They provide a durable replacement option for worn guides in MZR 2.3L applications, helping maintain valve alignment and reliable operation without altering factory valve geometry.
Supertech Mazda MZR 2.3L Intake/Exhaust Valve Guide 6mm Stem - Set of 8
