This original ZF idler gear 1358 305 207 fits the ZF 12AS series 12‑speed AMT transmission.
Integrally forged from high‑chromium alloy and finished by carburizing, quenching and precision gear grinding, it features high tooth surface hardness, excellent wear resistance and fracture resistance, capable of withstanding long‑term high torque impact during reverse and gear shifting operations.
With precise tooth profile workmanship and uniform meshing clearance, it runs smoothly without abnormal noise, effectively buffers gear transmission impact and reduces internal transmission wear.
Made to original standard dimensions, it offers perfect compatibility and easy installation. It is not prone to deformation or looseness under heavy‑duty conditions, making it a high‑quality original replacement part for transmission system maintenance.
