Yanmar ViO35 Travel Motor / Final Drive Assembly — KYB MAG-18V Piston Motor, Part No. 172458-73700

Premium travel motor / final drive assembly for Yanmar compact excavators, manufactured to OEM specification by KYB (Kayaba) and supplied in three grades — Genuine OEM, Quality Rebuilt, and Aftermarket (OEM-matched). Designed as the standard high-torque travel drive for crawler mini-excavators, it delivers reliable, high-output propulsion with compact planetary gear reduction.

Direct replacement for Yanmar ViO30-2, ViO35, ViO35-2/3/5/5A/5B, ViO38.

• Two-speed variable-displacement swash-plate piston motor — high torque for travel, higher speed for repositioning.
• Integrated brake valve and mechanical parking brake for safe, dependable operation.
• Case-rotation planetary gear reducer — compact, space-saving installation.
• Drop-in fit — same mounting, porting, and sprocket interface as the original unit.
• Built for crawler duty to minimize track walk-off and wear.

All units are pressure-tested before dispatch; warranty and condition grade confirmed per order. Available worldwide shipping (FOB / CIF / DDP) with custom-friendly documentation on request.

The following symptoms typically indicate that the hydraulic main piston pump requires inspection or replacement:

• Weak digging force and slow working speed.
• Abnormal noise and vibration from the pump during operation.
• Internal wear leading to pressure drop.
• Oil leakage at the pump assembly sealing surface.
• Unstable hydraulic flow and action jitter.

• Verify the machine model before placing your order.
• Confirm the part number matches your old pump.
• Keep the hydraulic oil clean during installation.
• Replace the sealing kit together if necessary.