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Yanmar VIO40-5, VIO45-5, VIO50-6A, VIO55-5, VIO57-6B (4–5.7 ton mini excavator)
Quality Options
Genuine KAYABA Original / Premium Aftermarket Grade
Core Usage
Main hydraulic power source for digging, traveling, swing and attachment operations
Factory Inspection
Full hydraulic pressure testing (up to 28MPa) and endurance test before delivery
Warranty
12-month warranty with free replacement for manufacturing defects
MOQ
1 piece; sample and bulk orders accepted
Lead Time
In-stock items ship within 1–3 working days
Shipping Period
Air/Express: 3–7 days; Sea freight: 30–45 days
Target Customer
Global repair shops, fleet operators and parts wholesalers
2. Key Features & Specifications
Core Key Features
Genuine KAYABA (KYB) axial piston pump with integrated pilot gear pump, fully compatible with original Yanmar hydraulic systems. High-strength alloy components ensure excellent wear resistance for heavy-duty cycles. Premium seals prevent leakage under extreme temperatures and high pressure. Load-sensing control reduces energy loss and improves fuel efficiency. Low vibration, quiet operation and anti-cavitation design extend service life.
Exact Technical Specifications (Factory Standard Parameter)
Specification Item
Parameter Data
Nominal Displacement
17 cc/rev (main pump), pilot pump 7.5 cc/rev
Rated Working Pressure
24.5 MPa (245 Bar)
Max Relief Setting Pressure
28 MPa (280 Bar)
Rated Output Flow
75 L/min @ 2400 RPM
Max Input Rotation Speed
2800 RPM
Input Shaft
13-tooth spline shaft
Net Product Weight
~32 KG
Port Thread
Matches original Yanmar pipeline
Recommended Hydraulic Oil
ISO VG46 anti-wear hydraulic fluid
Working Temperature
-25℃ ~ +85℃
3. Compatibility Information
Compatible Excavator Models
Yanmar VIO40-5, VIO45-5, VIO50-6A, VIO55-5, VIO57-6B (4–5.7 ton mini crawler excavators)
Cross Interchange OEM Part Numbers
Main OEMs: 172961-73100, 172961-73101, 172961-73102, 172961-73103, B0600-16004;Alternate: PSVD2-17E-4, PSVD2-17E-19, PSVD2-17E-23
Installation Remark
Direct bolt-on replacement, no chassis or pipe modification needed. Fully interchangeable with original KAYABA pump and compatible with Yanmar’s open/closed center hydraulic circuits.
4. Technical Explanation
This KAYABA PSVD2-17E pump uses a swash plate variable piston design with integrated pilot gear pump. It adjusts flow automatically based on system load to optimize power use and fuel efficiency. Built-in anti-cavitation protection safeguards components during cold starts, while an integral relief valve prevents overpressure. Delivers stable performance under variable loads—ideal for urban construction, landscaping and agricultural applications.
5. Supplier Advantages (Belparts)
Over 10 years specializing in excavator hydraulic parts; accurate OEM/model matching service.
Genuine KAYABA and premium aftermarket options; full-range parts for Yanmar and other major brands.
Belparts brand exported to 150+ countries; stable quality and global support.
Professional technical team for installation guidance and troubleshooting.
6. FAQ Section
Q1: Is this a genuine KAYABA pump?
A: We offer both genuine KAYABA original and premium aftermarket versions; both match OEM fit and performance.
Q2: Will it fit my Yanmar VIO55-5?
A: Yes, direct replacement for all listed VIO models; no modifications required.
Q3: What is the warranty?
A: 12-month warranty; free replacement for manufacturing defects within the period.
Q4: Do you have stock?
A: Yes, regular stock available for fast sample and bulk order dispatch.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter
Year Established:
2013
Total Annual:
$28000000-$41660000
Employee Number:
1200~1300
Ecer Certification:
Verified Supplier
Since 2013
Excavator Hydraulic Parts Manufacturer & Global Supplier Since 2013
Belparts Machinery Limited — Your Trusted Partner in Excavator Hydraulic Parts
Who We Are
Founded in September 2013 and headquartered in Guangzhou, China's premier engineering machinery hub, Belparts ha...
Since 2013
Excavator Hydraulic Parts Manufacturer & Global Supplier Since 2013
Belparts Machinery Limited — Your Trusted Partner in Excavator Hydraulic Parts
Who We Are
Founded in September 2013 and headquartered in Guangzhou, China's premier engineering machinery hub, Belparts ha...