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Yanmar B50 B50-2 B50-2B Main Hydraulic Pump 172165-73101 Rexroth AP2D21 For Mini Excavator Repair Parts

Yanmar B50 B50-2 B50-2B Main Hydraulic Pump 172165-73101 Rexroth AP2D21 For Mini Excavator Repair Parts

Luogo di origine:

Cina

Marca:

BELPARTS

Certificazione:

2006/42/EC ISO9001

Numero di modello:

B50 B50-2 B50-2B

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Dettagli del prodotto
Modello:
B50 B50-2 B50-2B
Nome della parte:
pompa idraulica
Numero di parte:
172165-73101
Garanzia:
1 anno
Applicazione:
escavatore
Spedizione:
Marittimo/Aereo/Express DHL FEDEX UPS
Qualità:
Alta qualità
Categoria:
parti di riparazione dell'escavatore
Termini di pagamento e di spedizione
Quantità di ordine minimo
1 pezzo
Prezzo
Negotiated price
Imballaggi particolari
Imballaggio in cassa di legno
Tempi di consegna
1~5 giorni
Termini di pagamento
T/T, garanzia commerciale, PayPal, L/C, D/P, D/A, Western Union, MoneyGram
Capacità di alimentazione
100 pezzi/mese
Descrizione di prodotto
172165-73101 Rexroth AP2D21 Main Hydraulic Pump for Yanmar B50 B50-2 B50-2B Mini Excavator (Point-by-Point Layout)
1. OEM Part Number & Machine Compatibility
  • Yanmar OEM part number: 172165-73101
  • Original pump model: Rexroth Uchida AP2D21 variable displacement piston pump assembly
  • Fully compatible mini excavator models: Yanmar B50, B50-2, B50-2B
  • Consistent mounting flange, input shaft spline and hydraulic port layout enables direct cross replacement among these three machine variants
2. Core Technical Specifications
  • Structure type: Tandem variable axial piston main pump integrated with built-in pilot gear pump
  • Main pump displacement: 21 cc/rev
  • Rated continuous working pressure: 24.5 MPa; preset maximum system relief pressure: 31.4 MPa
  • Working rotation speed is precisely matched to the original engine rated speed configuration of Yanmar B50 series excavators
  • Mounting bolt positions, shaft dimension and oil port orientation strictly conform to OEM drawing standards
  • Pump housing adopts ductile iron material; internal pistons, valve plates and wear parts are made of quenched alloy steel to enhance wear resistance and service life
3. Internal Structure & Functional Introduction
  • Main piston pump outputs high-pressure hydraulic oil to drive boom, arm, bucket, travel and swing operating movements
  • Integrated pilot gear pump supplies stable pressure oil for pilot control circuit and system oil replenishment
  • Built-in power limiting regulator automatically adjusts pump flow output according to load changes, effectively preventing engine stall under heavy-load digging conditions
  • Compact integrated structure saves installation space inside the hydraulic compartment of medium-sized mini excavators
4. Product Advantages
  • Exact 1:1 OEM external casting dimension, supporting plug-and-play installation with no modification to hydraulic pipelines or chassis structure
  • Every finished pump passes complete hydraulic bench inspection for pressure stability, flow consistency and internal leakage before shipment
  • Complete maintenance spare parts are available in stock, including overhaul seal kits, piston assemblies, swash plates and valve plates for individual component replacement during repair
  • Single part number covers three model iterations, helping dealers and repair shops simplify spare part inventory management
5. Packaging & Global Delivery Details
  • Input shaft and all hydraulic oil ports are coated with anti-rust grease and sealed with protective dust plugs
  • Entire 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 options are available: international air express, sea LCL/FCL bulk shipment and overland truck transportation for Southeast Asian markets
6. FAQ
  • Q: Can this AP2D21 pump fit B50, B50-2 and B50-2B directly?
    A: Yes, part number 172165-73101 is specially calibrated for all three B50 series models with identical installation size and matching hydraulic parameters for direct bolt-on replacement.
  • Q: Are separate repair spare parts available for this hydraulic pump?
    A: Matching full overhaul seal kits, piston shoe assemblies, valve plates, swash plates and independent pilot gear pump spare parts are all in stock for partial overhaul maintenance.
  • Q: What does AP2D21 stand for?
    A: AP2D21 is the original model designation of Rexroth Uchida pump, while 172165-73101 is the exclusive OEM part number designated by Yanmar for this complete pump assembly.

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