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YANMAR SV100-2A SV100-2B SV100-2A-2PB Main Hydraulic Pump 172B12-73100 OEM K7SP36 K7V28 Fit Excavator Repair Part

Place of Origin:Made in china
Brand Name:Belparts
Model Number:SV100-2A SV100-2B SV100-2A-2PB
Minimum Order Quantity:1PCS
Price:Negotiated price
Payment Terms:T/T,trade assurance,PayPal,L/C,D/P,D/A,Western Union,
Supply Ability:100 PCS / Months
Product Details
Highlight:

Yanmar SV100 hydraulic pump excavator part

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OEM hydraulic pump with warranty

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Excavator main hydraulic pump repair

Type: K7SP36 K7V28
Part Name: Hydraulic Pump
Part Number: 172B12-73100
Model: SV100-2A SV100-2B SV100-2A-2PB
Quality: OEM
Shipment: Sea / Air / Express DHL FEDEX UPS
Warranty: 1 Year
Application: Excavator
Product Description
172B12-73100 K7SP36 K7V28 Main Hydraulic Pump for Yanmar SV100-2A SV100-2B SV100-2A-2PB Excavator (Point-by-Point Layout)
1. OEM Part Number & Machine Compatibility
  • Original pump model: Combined structure K7SP36 + K7V28 tandem variable piston pump assembly
  • Yanmar OEM part number: 172B12-73100
  • Fully compatible excavator models: Yanmar SV100-2A, SV100-2B, SV100-2A-2PB
  • Unified mounting flange, input shaft spline and hydraulic port layout supports direct replacement across all three machine configurations
2. Core Technical Specifications
  • Structure type: Tandem dual variable displacement piston main pump integrated with built-in pilot charge gear pump
  • Displacement configuration is matched to factory hydraulic design requirements of the SV100 mid-size excavator platform
  • Rated continuous working pressure adheres to original system settings, with preset maximum relief pressure for overload protection
  • Operating rotation speed range is precisely calibrated to match rated output of the original engine equipped on these excavator units
  • Mounting hole layout, shaft dimension and oil port orientation strictly follow OEM dimensional drawings
  • Pump housing is constructed from ductile iron; internal pistons, valve plates and friction components adopt quenched alloy steel to improve wear resistance and extend overall service life
3. Internal Structure & Functional Introduction
  • Dual main piston pumps supply high-pressure hydraulic oil to drive boom, arm, bucket, travel and swing working motions
  • Integrated pilot gear pump provides stable pressurized oil supply for pilot control circuits and system hydraulic oil replenishment
  • Built-in power matching regulators adjust total pump flow output automatically according to load fluctuations, preventing engine stall under heavy digging working conditions
  • Optimized compact tandem layout makes proper fitment inside the designated hydraulic compartment of SV100 series excavators
4. Product Advantages
  • Exact 1:1 OEM outer casting dimensions, enabling plug-and-play installation without modification to hydraulic pipelines or chassis mounting structure
  • Every finished pump undergoes 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 OEM part number covers three machine variants, simplifying inventory management for spare part dealers and repair service workshops
5. Packaging & Global Delivery Details
  • Input shaft and all hydraulic ports are coated with anti-rust grease and sealed with protective dust plugs
  • The whole pump is wrapped with moisture-proof plastic film and fixed inside export-grade solid wooden crate to prevent 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 are available: international air express, sea LCL/FCL bulk shipment and overland truck transportation for Southeast Asian markets
6. FAQ
  • Q: Does this pump work for SV100-2A, SV100-2B and SV100-2A-2PB directly?

    A: Yes, consistent mounting dimensions and factory-calibrated hydraulic parameters allow direct bolt-on installation for all three listed models with no extra adjustment required.

  • Q: What is the relationship between K7SP36, K7V28 and part number 172B12-73100?

    A: K7SP36 and K7V28 are the internal model codes for the two sections of this tandem pump assembly, while 172B12-73100 is the official OEM part number assigned by Yanmar for the complete pump unit.

  • 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 independent pilot gear pump spare parts are all available for partial overhaul maintenance and component replacement.

Overall Rating
5.0
★★★★★
★★★★★
Based on 50 reviews recently
5 star
100%
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All Reviews
  • J
    Jeff
    South Africa Mar 20.2026
    ★★★★★
    ★★★★★
    This OEM-quality hydraulic pump fits my machine perfectly, and it runs very well on it.
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