172A64-73300 final drive for Yanmar VIO17 VIO17-A mini excavator
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Seller's contacts
+86 199 246...
+86 199 2461 6345
China
China
China
China
Poland, Koziegłowy
Romania
Romania
Poland, Koziegłowy
Romania
Romania
Denmark, Horsens
Romania, Targu Mrues
1. Product Overview
The 172A64-73300 is an integrated propulsion unit featuring a high-efficiency hydraulic travel motor and a multi-stage planetary reduction gearbox. As the primary drive component for the Yanmar VIO17 series, it is designed to deliver the precise tracking power and high torque necessary for a 1.7-ton machine. Its compact "short-profile" design is optimized for zero tail swing machines, ensuring the motor fits perfectly within the track frame without protruding, thereby protecting it from external impacts.
2. Technical Specifications & OEM Part Numbers
This unit is a 100% direct "bolt-on" replacement for Yanmar factory part numbers.
Yanmar Part Number: 172A64-73300 (also replaces various sub-series equivalents for the VIO17 frame).
Machine Fitment:
Yanmar VIO17 (Zero Tail Swing)
Yanmar VIO17-A
Yanmar VIO17-P
Compatible with both fixed and variable-width undercarriage models.
Core Features:
Motor Type: Variable displacement axial piston motor with integrated 2-speed travel (High/Low) switching.
Reduction System: High-torque planetary gears manufactured from induction-hardened alloy steel.
Mechanical Brake: Integrated spring-applied, hydraulic-release parking brake for safety on inclines.
3. Why Partner With a 13-Year Industry Expert?
Hydraulic Synchronization: We understand the specific flow requirements of the VIO17’s hydraulic pump. Our motors are calibrated to ensure the machine tracks perfectly straight, eliminating the "drift" often found in lower-quality aftermarket units.
Rigorous Load Testing: Every unit undergoes a 100% performance bench test. We verify high-pressure seal integrity, brake holding torque, and smooth 2-speed shifting before the unit leaves our facility.
OEM-Grade Materials: Our final drives utilize premium "Duo-Cone" floating seals and high-load bearings, extending the service life in harsh mud and water conditions.
Global Rapid Logistics: Secured in reinforced, export-standard packaging to prevent transit damage. We offer express delivery via DHL, FedEx, or UPS, typically arriving in 3 to 7 business days.
4. Critical Installation & Maintenance Protocol
Gear Oil Commissioning (Essential): Final drives are often shipped without gear oil for safety. You must fill the planetary gearbox with the correct volume of SAE 80W-90 gear oil before operation.
Case Drain Verification: Ensure the case drain line is clear and correctly connected. High backpressure in the motor case is the leading cause of shaft seal failure and internal motor damage.
Hydraulic Flushing: If the previous motor failed due to internal breakage, you must flush the hydraulic lines and tank. Residual metal shavings can destroy a new motor within minutes of startup.
Bleeding Trapped Air: After installation, lift the track off the ground and run the motor at low speed in both directions for several minutes to purge air from the hydraulic circuit.
5. Ordering & Professional Support
Fitment Verification: To ensure 100% accuracy, please provide your Machine Serial Number and the number of sprocket mounting holes (e.g., 9-hole or 12-hole).
Instant Quote: Contact us today for up-to-date pricing, tiered quality options, and current stock status.
Technical Guidance: Our expert team is available 24/7 to provide professional advice on installation, hydraulic pressure settings, and troubleshooting.