Yanmar VIO15 VIO17 VIO15-2 VIO17-A Main Hydraulic Pump 172A64-73200 OEM PVD-0B-16BP-6AG4-5503D for Mini Excavator Repair Parts
Yanmar VIO15 hydraulic pump
,mini excavator piston pump
,original hydraulic pump with warranty
- Original pump model: Nachi PVD-0B-16BP-6AG4-5503D variable displacement piston pump assembly
- Yanmar OEM part number: 172A64-73200
- Fully compatible mini excavator models: Yanmar VIO15, VIO17, VIO15-2, VIO17-A
- Unified mounting flange, input shaft spline and hydraulic port layout enables direct replacement across all four machine variants
- Structure type: Integrated assembly of variable axial piston main pump and built-in pilot charge gear pump
- Main pump displacement matches original hydraulic system design tailored for ultra-small VIO15/VIO17 excavator platform
- Rated continuous working pressure complies with factory system settings, with preset maximum relief pressure for reliable overload protection
- Operating rotation speed range is precisely calibrated to match rated speed of the original engine fitted on these compact machines
- Mounting bolt layout, input shaft dimension and hydraulic port positioning strictly follow OEM dimensional standards
- Pump housing is constructed from ductile iron; internal pistons, valve plates and friction components use quenched alloy steel to enhance wear resistance and extend total service life
- Main piston pump generates high-pressure hydraulic oil to actuate boom, arm, bucket, travel and swing operational movements
- Integrated pilot gear pump supplies steady pressurized oil for pilot control circuits and system makeup oil replenishment
- Built-in power adjustment regulator automatically modulates pump flow output in response to load fluctuations, preventing engine stall during heavy digging operations
- Compact integrated structure maximizes space efficiency inside the extremely limited hydraulic compartment of micro excavators
- Exact 1:1 OEM outer casting dimensions, enabling plug-and-play installation with no modifications needed to hydraulic piping or chassis mounting structure
- Every finished pump completes comprehensive hydraulic bench inspection covering pressure stability, flow consistency and internal leakage testing before shipment
- Complete maintenance spare parts are held in stock, including overhaul seal kits, piston assemblies, swash plates and valve plates for separate component replacement during repair work
- Single part number fits four model versions, streamlining inventory management for spare part suppliers and repair service workshops
- Input shaft and all hydraulic ports are coated with anti-rust grease and sealed with protective dust plugs
- The entire pump is wrapped with moisture-proof plastic film and secured inside export-grade solid wooden crate to prevent collision and moisture damage during long-distance sea or air transportation
- In-stock items can be dispatched within 3 to 5 working days after order confirmation
- Multiple global shipping solutions are available: international air express, sea LCL/FCL bulk shipment and overland truck transportation for Southeast Asian markets
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Q: Can this pump be installed directly on VIO15, VIO17, VIO15-2 and VIO17-A?
A: Yes, consistent mounting dimensions and factory-calibrated hydraulic parameters support direct bolt-on fitting for all four listed models with no extra adjustment required.
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Q: What is the difference between PVD-0B-16BP-6AG4-5503D and 172A64-73200?
A: PVD-0B-16BP-6AG4-5503D is the internal model designation from Nachi, while 172A64-73200 is the exclusive OEM part number designated by Yanmar for this full pump assembly.
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Q: Are individual repair components available for this hydraulic pump?
A: Corresponding full overhaul seal kits, piston shoe assemblies, valve plates, swash plates and standalone pilot gear pump spare parts are all available for partial overhaul and individual component replacement work.
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JThis OEM-quality hydraulic pump fits my machine perfectly, and it runs very well on it.
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