Nachi Hydraulic Parts | PZS PFG Pumps & Motors: Genuine and Aftermarket Nachi Hydraulic Pump and Motor Components

Nachi Hydraulic Parts: Product Range and Coverage at Imara Engineering

Nachi's hydraulic product portfolio is more focused than many competing brands in our hydraulic range, with a deliberate concentration on piston pump and gear pump technology for construction equipment applications, rather than the full-system hydraulic portfolios carried by Bosch Rexroth or Parker. This focus delivers engineering depth within Nachi's specialist product categories that a broader portfolio approach cannot match, and it means Nachi hydraulic parts sourcing requires a supplier whose knowledge of the Nachi platform extends beyond catalogue matching. Imara Engineering structures its Nachi inventory around the PZS and PFG platforms with component depth on the configurations most active in Hitachi and Doosan excavator fleet operation globally.

Nachi PZS Series Piston Pump Parts

The Nachi PZS series variable displacement axial piston pumps are the brand's primary construction equipment hydraulic pump platform, deployed extensively across Hitachi ZX series excavators and a range of Doosan DX series machines, where Nachi's combination of pressure control precision and load-sensing efficiency makes it the OEM hydraulic pump specification of choice. The PZS series is the single highest-demand component category in our Nachi inventory, reflecting the significant installed fleet of Hitachi and Doosan excavators running Nachi hydraulic systems in active global operation.

Imara Engineering stocks nachi pzs parts for the PZS-2B, PZS-3B, PZS-4B, PZS-5B, PZS-6B, and PZS-6C configurations, covering piston assemblies, cylinder block components, valve plate assemblies, shaft seal kits, bearing sets, swash plate components, servo control assemblies, and complete nachi hydraulic pump rebuild kit ranges. All nachi hydraulic pump parts orders are cross-referenced against the pump serial number and displacement rating before dispatch to confirm the correct internal specification for your machine application and production year.

Nachi PFG Series Gear Pump Parts

The Nachi PFG series gear pumps power auxiliary hydraulic circuits across Hitachi and Doosan excavator platforms, providing the fixed-displacement flow supply for pilot circuits, cooling systems, and ancillary hydraulic functions that complement the main variable-displacement piston pump system. PFG series gear pumps are high-replacement-frequency components in excavator hydraulic maintenance. Their operating profile in pilot and auxiliary circuits generates a predictable wear cycle that makes proactive sourcing of Nachi PFG parts a standard fleet management practice for operators running Nachi-equipped machines.

Imara Engineering carries nachi pfg parts for the PFG-005, PFG-010, PFG-014, PFG-017, PFG-020, and PFG-025 configurations, covering gear set assemblies, housing components, shaft seal kits, bearing sets, and complete replacement unit ranges. For operators managing both main pump and pilot pump requirements on the same machine, our team cross-references both the PZS and PFG component serial numbers simultaneously to confirm the correct specification across the complete hydraulic system.

Nachi Hydraulic Motor Parts

Nachi's hydraulic motor range, travel motor,s and swing motors deployed across Hitachi and Doosan excavator platforms running Nachi hydraulic systems complete the hydraulic transmission circuit on machines where Nachi pumps are installed as the primary hydraulic power source. Travel and swing motors on Nachi-equipped excavators carry the same specification dependency as the pump components. The motor's displacement and control settings are matched to the pump circuit calibration, and sourcing motor components without confirming the motor serial number and its relationship to the pump specification introduces the same risk as any other mismatched transmission pair.

Imara Engineering carries nachi hydraulic motor parts covering piston assemblies, cylinder block components, valve plate assemblies, brake piston kits, shaft seal kits, bearing sets, and complete nachi hydraulic motor seal kit ranges for both field service and full workshop rebuild applications. Provide your motor serial number and host machine details, and our team will confirm the correct component specification across the complete Nachi hydraulic system simultaneously.

Nachi in Hitachi Excavators: A Sourcing Relationship That Requires Dual Reference

The relationship between Nachi hydraulic components and Hitachi Construction Machinery mirrors the Isuzu engine partnership in its operational implications for workshop parts management. Hitachi ZX series excavators running Nachi hydraulic systems require two separate reference environments for accurate parts sourcing — the Hitachi machine serial number for hydraulic circuit configuration and machine-level components, and the Nachi component serial number for pump and motor internal specifications.

Conflating these references is the most consistent source of nachi parts excavator specification errors in the field. The Hitachi machine serial number identifies the circuit pressure settings, flow requirements, and hydraulic configuration the pump was installed into. The Nachi pump serial number identifies the internal component specification of the pump itself. Both together define what a correctly specified nachi hydraulic pump rebuild requires. At Imara Engineering, both references are applied as standard on every Hitachi-hosted Nachi hydraulic parts order, and our team confirms the correct specification path across the complete system before any component is dispatched.

Genuine, OEM, or Aftermarket: Selecting the Right Nachi Hydraulic Parts

• Genuine Nachi hydraulic parts carry Nachi's direct manufacturing traceability and OEM warranty. The correct choice for PZS series cylinder block assemblies, precision valve plate components, servo control assemblies, and applications where Nachi's own dimensional specification is contractually or operationally required.
• OEM Nachi hydraulic pump parts are produced by approved supply-chain manufacturers to identical engineering tolerances without Nachi branding. The most practical sourcing tier for independent workshops managing nachi hydraulic parts across Hitachi and Doosan excavator fleet inventories at a more competitive price point.
• Aftermarket NACHI hydraulic parts are the value-matched choice for seal kits, bearing sets, PFG gear pump replacement units, and high-consumption service components. All aftermarket NACHI hydraulic motor seal kit and pump seal kit products at Imara Engineering pass our specification review before listing or dispatch.

How to Order Nachi Hydraulic Parts Online from Imara Engineering

1. Locate your pump or motor serial number: Found on the component nameplate on the pump or motor body. The serial number and displacement rating together determine the correct internal specification for all nachi pzs parts and nachi pfg parts orders.
2. Confirm your host machine: Provide your Hitachi or Doosan excavator model and serial number alongside the Nachi component serial number so our team can cross-reference the pump configuration against your machine's hydraulic circuit specification simultaneously.
3. Identify your component requirement: Use the OEM part number from your Nachi service documentation,, or provide the component description for cross-referencing by our Nachihi hydraulic pump distributor team.
4. Place and track your order: Nachi parts online orders ship globally with full tracking and freight documentation to customers across Australia, the USA, Canada, and worldwide.

High-turnover nachi hydraulic motor seal kit and pump seal kit ranges are held as ready-to-ship stock across the PZS and PFG platforms. Contact our team directly for urgent breakdown sourcing, and we will prioritise your requirement.