Scania 1121658 Synchronizer Hub

Scania 1121658 Synchronizer Hub provides the splined interface between the gearbox shaft and synchronizer assembly in Scania transmissions for drivetrain integrity under heavy loads. OEM-matched hub spline geometry and engagement ramp design ensure correct synchronizer action and reliable gear selection. Available with a 1-year warranty. Manufactured with materials selected for long-term resistance to drivetrain stress and operational loading.