The Fast Gearbox is the backbone of the Shacman F3000 and X3000. Whether you need a full assembly or specific synchronizer kits, our parts ensure the smoothest transmission of power from engine to axle.

Key Components in Stock:

1. Synchronizer Kits: Precision-machined to prevent "gear grinding" and extend transmission life.

2. Main & Counter Shafts: High-strength forged steel with induction-hardened teeth.

3. Clutch Actuators (AMT): Essential for X5000/X6000 models to ensure precise automated shifting.

The Bernard Difference:

• Gear Matching: Tell us your gearbox model (e.g., 12JSD160T), and we will provide the exact gear ratios your specific chassis requires. No more "wrong ratio" headaches.

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