... 16S251 3.ZF No.1297304402 4.factory supply directly MAN truck spare parts synchronizer ring for ZF gearbox ... 16S151 16S181 16S221 16S251 Product information:Item Namesynchronizer ring Part No1297304402 ... :Gearbox aseembly, transmission, gear, sliding sleeve, synchronizer hub, synchronizer body, Synchronizer cone, clutch body, Coupling Body, flange, pressure ...