Largest Dimension: 22.0 cm (8.7 in)
Middle Dimension: 20.0 cm (7.9 in)
Smallest Dimension: 18.0 cm (7.1 in)
Designed for reliable hydraulic performance in demanding Volvo applications.
Precision-Machined Components — Tight dimensional control supports accurate fitment and smooth operation.
Wear-Resistant Materials — Selected materials and surface treatments help withstand continuous high-load operation.
Balanced Rotating Assembly — Optimized component matching helps minimize vibration and maintain stable pump performance.
Reliable Replacement Solution — Engineered as an aftermarket replacement for selected Volvo hydraulic piston pumps.
100% Quality Inspected — Critical dimensions, surface condition, assembly, and performance are inspected before shipment.
Every HYDSTAR rotating group is manufactured using CNC machining processes and controlled to strict dimensional requirements throughout production.
01 — Dimensional Inspection
Critical dimensions and tolerances are verified to ensure accurate component fitment.
02 — Surface & Hardness Inspection
Surface condition and hardness are checked to ensure consistent wear resistance.
03 — Assembly Inspection
Component matching, clearance, and assembly condition are inspected before final approval.
04 — Performance Testing
Completed assemblies undergo functional testing to verify stable and reliable operation.

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Don't hesitate to contact us. HYDSTAR HYDRAULIC experts are very happy to help you, provide a variety of flexible and reliable solutions to help you solve various problems.