Volvo 1521979 Synchronizer Hub

Volvo 1521979 Synchronizer Hub provides the splined interface between the gearbox shaft and synchronizer assembly in Volvo transmissions for and transmission in commercial trucks. OEM-matched hub spline geometry and engagement ramp design ensure correct synchronizer action and reliable gear selection. Available with a 1-year warranty. Designed to perform reliably across extended service intervals in demanding heavy transport environments.