This ZF 1328 305 007 idler shaft is compatible with 12AS series 12-speed AMT transmissions. It is precisely turned and integrally formed from high-strength alloy round steel.
The whole shaft is treated by quenching and tempering as well as carburizing hardening, featuring high concentricity and excellent bending and torsion resistance. It is not easy to bend, deform or fracture under heavy-duty working conditions.
The shaft surface is precision ground and polished. When fitted with needle roller bearings, it runs smoothly with low friction resistance, effectively reducing operating noise and internal power loss.
Manufactured in strict compliance with original dimensional tolerances, it achieves accurate fitting and stable positioning during installation. With strong load-bearing capacity and durability against long-term alternating loads, it is a high-quality OEM replacement part for the maintenance of transmission idler assembly.
