This ZF 1358 304 222 mainshaft 2nd gear is specifically built for ZF 12-speed AMT transmissions. Forged from high-strength alloy and treated with precision carburizing and quenching, it features high tooth surface hardness, excellent wear resistance and impact resistance, capable of withstanding frequent shift shocks under heavy-duty operating conditions. Factory-grade precision tooth profile machining ensures uniform meshing clearance, delivering smooth 2nd gear shifts without gear rattling noise, high transmission efficiency, and effectively reducing transmission noise. Ideal for heavy-duty commercial vehicle applications, it is a core component for stable power transmission in the gearbox. Its original quality ensures a perfect fit with the mainshaft, enabling hassle-free one-step replacement during maintenance.
1358 304 222 Main Shaft 2nd Speed Gear
Part No. 1358 304 222 is the mainshaft 2nd gear, compatible with the ZF 12AS series 12-speed AMT transmission. Mounted on the transmission mainshaft, it serves as a key component for power transmission in 2nd gear.
The gear is integrally forged from high-alloy steel with precision grinding on the tooth surfaces. Manufactured in strict accordance with OEM tolerance standards, it ensures accurate meshing with the mainshaft and sliding sleeve.
Suitable for commercial vehicles such as heavy-duty trucks and buses, it withstands high torque impact during starting and low-speed heavy-load operation, resisting tooth breakage and wear during long-term service. Replacement restores the shifting performance of the transmission 2nd gear, eliminates jamming and abnormal noise, and guarantees driving safety.
