logo
Zu Hause > produits > Hydraulikpumpebaggerteile >
YANMAR YB251 YB301 Main Hydraulic Pump 172122-73100 OEM For Mini Excavator Repair Parts

YANMAR YB251 YB301 Main Hydraulic Pump 172122-73100 OEM For Mini Excavator Repair Parts

Herkunftsort:

JAPAN

Markenname:

BELPARTS

Zertifizierung:

2006/42/EC ISO9001

Modellnummer:

YB251 YB301

Treten Sie mit uns in Verbindung
Fordern Sie ein Zitat
Einzelheiten zum Produkt
Garantie:
1 Jahr
Kategorie:
Ersatzteile für Bagger
Anwendung:
Bagger
Modell:
YB251 YB301
Lieferung:
See-/Luft-/Express-DHL-FEDEX-UPS
Teilename:
Hydraulikpumpe
Qualität:
OEM
Teilenummer:
172122-73100
Zahlungs- und Versandbedingungen
Min Bestellmenge
1 STÜCK
Preis
Negotiated price
Verpackung Informationen
Holzkistenverpackung
Lieferzeit
1~5 Tage
Zahlungsbedingungen
T/T, Handelsversicherung, PayPal, L/C, D/P, D/A, Western Union, MoneyGram
Versorgungsmaterial-Fähigkeit
100 Stück/Monate
Produkt-Beschreibung
172122-73100 Main Hydraulic Pump for Yanmar YB251 YB301 Mini Excavator (Point-by-Point Layout)
1. OEM Part Number & Machine Compatibility
  • Yanmar OEM part number: 172122-73100
  • Original pump structure: Variable displacement axial piston pump integrated with built-in pilot gear pump assembly
  • Direct fit mini excavator models: Yanmar YB251, Yanmar YB301
  • Unified mounting flange, shaft spline and hydraulic port layout for direct replacement on both two machine models
2. Core Technical Specifications
  • Structure: Combined unit of variable main piston pump and integrated pilot charge gear pump
  • Matched displacement and internal flow parameters follow original factory hydraulic design for YB251/YB301 platform
  • Rated continuous working pressure conforms to original system setting, with preset maximum relief pressure for overload protection
  • Rotation speed range perfectly matched to the original 3TN78L engine equipped on these excavators
  • Input shaft spline size, installation bolt hole positions and port orientation strictly comply with OEM dimensional standards
  • Pump housing made of ductile iron; internal pistons, valve plates and wear parts adopt quenched alloy steel for wear resistance and long service life
3. Structure & Functional Description
  • Main piston pump outputs high-pressure hydraulic oil to drive boom, arm, bucket, left/right travel and swing movements
  • Built-in pilot gear pump supplies stable pressure oil for pilot control circuit and system oil replenishment
  • Internal power regulating valve automatically adjusts pump output flow according to actual load variation, preventing engine stalling under heavy digging conditions
  • Compact integrated structure saves installation space inside the narrow hydraulic compartment of old-generation small excavators
4. Product Core Advantages
  • Exact 1:1 OEM external casting dimension, plug-and-play installation without modifying hydraulic pipelines or machine mounting structure
  • Every finished pump undergoes full hydraulic bench testing for pressure stability, flow consistency and internal leakage inspection before delivery
  • Complete overhaul spare parts are available in stock, including seal kits, piston assemblies, swash plates, valve plates and pilot gear pump components for separate maintenance replacement
  • Single part number covers two excavator models, simplifying spare part inventory management for repair workshops and dealers
5. Packaging & Global Delivery Details
  • Input shaft and all hydraulic oil ports coated with anti-rust grease and sealed with protective dust plugs
  • Whole pump wrapped with moisture-proof plastic film and fixed inside export-grade solid wooden crate to avoid collision and damp 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 available: international air express, sea LCL/FCL bulk shipment and overland truck transportation for Southeast Asian markets
6. FAQ
  • Q: Can this pump work for both Yanmar YB251 and YB301 directly? A: Yes, part number 172122-73100 is specially engineered for these two models with identical installation dimensions and matched hydraulic parameters, ready for direct bolt-on replacement.
  • Q: Are individual repair spare parts available for this hydraulic pump? A: Matching 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 component replacement.
  • Q: Is this pump a direct OEM replacement for old original pumps on these two machines? A: Yes, it matches all original interface and hydraulic calibration requirements, no adjustment or modification needed during field installation.

Schicken Sie uns Ihre Untersuchung direkt

Privacy policy Gute Qualität Chinas Hydraulikbagger-Teile Lieferant. Copyright-© 2021-2026 GUANGZHOU BELPARTS ENGINEERING MACHINERY LIMITED . Alle Rechte vorbehalten.