Volvo 1521939 Synchronizer Hub
Direct-fit Synchronizer Hub for Volvo semi-trucks — catalogue ref. 1521939 — transmission, differential, axle and gearbox applications, factory-spec and aftermarket. Global delivery. Backed by a 1-year warranty.
Volvo 1521939 Synchronizer Hub
Volvo 1521939 Synchronizer Hub is the central splined hub of the synchronizer assembly in Volvo gearbox units for drivetrain, gearbox, and differential components in heavy transport applications. Manufactured to OEM spline geometry and sliding sleeve engagement specifications for correct synchronizer function and reliable gear engagement under continuous shift cycling. Ships with a 1-year warranty.