OEM 804420102 The XCMG Steel Pipe Assembly 804420102 is a genuine OEM hydraulic tubing assembly engineered to carry pressurized oil between pumps, valves, cylinders, and tanks on XCMG excavators.
Identified by part number 804420102, this factory-built steel pipe assembly forms a rigid, leak-free circuit that keeps boom, arm, bucket, and travel functions working smoothly.
It is formed from high-strength seamless steel tube, precision bent and fitted with welded or brazed ends that resist vibration and thermal cycling.
Exact OEM length, bend radius, and port geometry guarantee a direct replacement without modification, so the pipe bolts on and connects cleanly on the first attempt.
By maintaining stable flow and tight sealing, this steel pipe assembly keeps cycle times short and machine response predictable through long working shifts.
The 804420102 Steel Pipe Assembly uses cold-drawn seamless steel tube that resists deformation under repeated pressure spikes and long duty cycles.
Precision bending holds the original routing, so the pipe fits into tight machine spaces without stressing nearby components or rubbing against structures.
Welded and brazed end fittings are leak-tested to confirm joint integrity, which prevents oil weeping and pressure loss in the circuit.
Zinc-nickel plating or powder coating protects the surface from corrosion, road salt, and humid job sites, so the pipe remains serviceable for years.
Exact OEM length, bend radius, and port geometry allow direct replacement without adapters, reducing assembly time and eliminating mismatch damage.
Production begins with certified seamless steel tube that is checked for chemical composition, wall thickness, and hardness before bending starts.
Tube bending is performed on computer-controlled machines that hold bend angle, radius, and length within exact tolerances for a drop-in fit.
End fittings are machined and welded or brazed by qualified operators, then inspected for penetration, alignment, and surface finish.
After assembly, every pipe is pressure tested and checked for leakage before it is cleaned, plated, and released for packing.
Batch records let XCMG trace each 804420102 assembly back to its raw material lots, so any quality concern can be identified quickly.
A steel pipe assembly carries pressurized oil between components. A weak or leaking pipe can drop system pressure and slow machine response.
The 804420102 assembly maintains stable flow at every connection, so boom, arm, and bucket functions receive the oil they need without loss.
Rigid steel tube resists expansion under pressure better than hose, which keeps response crisp and reduces heat build-up in the system.
Because the pipe resists vibration and thermal cycling, it reduces the need for repeated torque checks and unexpected repairs on site.
Clean, tight connections lower oil consumption, reduce heat generation, and extend the service life of the hydraulic oil.
Inspect pipes regularly for weeping, corrosion, or dents, and replace any worn assembly promptly with a genuine 804420102 pipe.
The 804420102 Steel Pipe Assembly installs with standard hand tools, which keeps downtime and labour costs low during scheduled service.
Park the excavator on firm level ground, lower the
