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XCMG Hose Assembly 803496601 – High-Pressure Hydraulic Line for Motor Graders
2026-07-06
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XCMG Hose Assembly 803304020 – High-Pressure Hydraulic Line for Motor Graders
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XCMG Hose Assembly 804437174 – High-Pressure Hydraulic Line for Motor Graders

XCMG Hose Assembly 804437174 – High-Pressure Hydraulic Line for Motor Graders

Hose Assembly 804437174
Hose Assembly
Рукав в сборе 804437174
Рукав в сборе
Conjunto de manguera 804437174
Conjunto de manguera

804437174 is the genuine OEM hose assembly engineered for XCMG motor graders, providing reliable high-pressure hydraulic fluid transmission between pumps, control valves, and working actuators. This precision component ensures leak-proof power delivery and consistent performance in GR series graders.

The 804437174 hose assembly features a two-layer high-tensile steel wire braid reinforcement and a premium synthetic rubber inner tube, offering excellent pressure resistance and durability. Its pre-crimped steel fittings ensure secure, leak-free connections.

Whether replacing a worn line or repairing a hydraulic circuit, this assembly guarantees consistent performance. With the 804437174, you ensure reliable hydraulic system operation.

Technical Specifications

ParameterSpecification
OEM Number804437174
Part NameHydraulic Hose Assembly
Brand / CompatibilityXCMG – fits GR135, GR165, GR180, GR215, GR260, GR300, GR350 motor graders
ReinforcementTwo-layer high-tensile steel wire braid
Inner Tube MaterialSynthetic rubber (Nitrile / NBR), oil-resistant
Cover MaterialAbrasion-resistant synthetic rubber
Max Working Pressure18 MPa (180 bar / 2,610 psi)
Proof Pressure24 MPa (240 bar / 3,480 psi)
Burst Pressure≥ 48 MPa (480 bar / 6,960 psi)
Operating Temperature-40°C to +120°C (-40°F to +248°F)
End FittingsPre-crimped steel, zinc-nickel plated
Corrosion Protection500+ hours salt spray (ASTM B117)
CertificationISO 9001, CE, RoHS, XCMG quality standard

Engineering Excellence

The XCMG Hose Assembly 804437174 is a precision-engineered high-pressure hydraulic line designed for motor grader fluid power systems. It provides reliable, leak-proof fluid transmission between hydraulic pumps, control valves, and working actuators on XCMG GR series motor graders.

Each assembly is constructed with a two-layer high-tensile steel wire braid reinforcement and a premium NBR synthetic rubber inner tube, engineered to withstand extreme operating pressures up to 18 MPa (2,610 psi) in load-sensing hydraulic systems.

The hose assembly comes with pre-crimped steel end fittings attached using XCMG’s proprietary crimping process, which applies precise radial force to compress the ferrule onto the hose. This creates a permanent, leak-proof seal that meets or exceeds the burst pressure rating of the hose itself.

Furthermore, the 804437174 incorporates a premium abrasion-resistant synthetic rubber cover that provides excellent protection against ozone, UV exposure, and hydraulic oil permeation. This makes it ideal for open-pit mining, highway construction, and agricultural applications.

From a quality perspective, every assembly undergoes rigorous testing, including impulse testing per ISO 6803, to guarantee conformance to XCMG’s strict quality standards. The fittings are finished with zinc-nickel plating and trivalent chromate coating.

For maintenance teams, standardizing on the 804437174 simplifies inventory management, as this assembly is used across multiple XCMG grader models including GR135, GR165, GR180, GR215, GR260, GR300, and GR350.

Durability & Field Performance

In demanding construction environments, the 804437174 hose assembly has demonstrated exceptional durability. The two-layer steel wire braid provides excellent abrasion resistance and pressure containment, ensuring reliable performance even under extreme impulse spikes.

Unlike standard hoses, the genuine XCMG assembly features a specially formulated cover that resists weathering, ozone, and UV exposure, ensuring long-term reliability in harsh outdoor conditions. The corrosion protection exceeds 500 hours of salt spray resistance per ASTM B117.

The hose’s flexible design absorbs vibration and accommodates machine movements, reducing stress on connections and preventing premature failure. This is critical for graders operating in continuous articulation and blade rotation.

Moreover, the 804437174 is designed to operate effectively in a wide temperature range from -40°C to +120°C, maintaining its performance characteristics from cold starts to high-temperature working conditions.

When used with XCMG-recommended hydraulic fluids, this assembly achieves a long service life, reducing maintenance frequency and associated downtime. A leaking or burst hose can cause sudden loss of steering or blade control, leading to dangerous machine behavior and costly downtime.

With a proven track record in thousands of machines, the 804437174 hose assembly contributes significantly to the reliability, productivity, and safety of XCMG graders.

Installation & Maintenance

Installing the 804437174 hose assembly requires careful preparation. First, relieve system pressure and clean the connection areas to prevent contamination from entering the hydraulic system.

Remove the old assembly and inspect the fittings for any debris or damage. Ensure the new hose is routed correctly, avoiding sharp bends and abrasive contact that could compromise the hose integrity.

The factory pre-crimped fittings eliminate the need for field cutting or assembly, significantly reducing installation time and improving overall reliability. Simply connect the fittings and torque to the specified value using a calibrated wrench.

For maintenance, periodically inspect the hose for signs of abrasion, cracking, swelling, or leakage. Replace the assembly immediately if any damage is detected. A cracked, swollen, or abraded hose must be replaced promptly.

The 804437174 is designed for easy replacement. Always use a genuine XCMG assembly to ensure proper fit, correct bend radius, and long service life even under extreme temperature cycles and vibration.

Finally, document all maintenance activities and replacement intervals to support a proactive maintenance program and ensure the long-term reliability of your XCMG grader’s hydraulic system.

Global Availability & Support

The 804437174 hose assembly is readily available through XCMG’s extensive global distribution network, ensuring fast delivery to support your maintenance and repair needs.

Each assembly is individually packaged to protect it during transport. Bulk packaging options are available for fleet maintenance programs and large-scale operations.

Our technical support team can provide installation guidance, routing diagrams, and cross-reference information to ensure you select the correct assembly for your specific machine and application.

The 804437174 is backed by a comprehensive warranty against manufacturing defects, reflecting our commitment to quality and customer satisfaction. We stand behind every component we supply.

We also offer verification services to confirm that 804437174 is the correct assembly for your specific machine and application, eliminating ordering errors and ensuring you receive the right part.

Choose the genuine XCMG Hose Assembly 804437174 for reliable fluid conveyance, enhanced machine performance, and operational peace of mind. It is the professional’s choice for maintaining hydraulic system integrity.

The hose assembly’s ability to provide reliable, leak-free fluid transmission directly contributes to improved system efficiency, reduced contamination, and lower operating costs. Replacing a worn hose with a genuine XCMG assembly restores full hydraulic power and reliable operation in demanding grading conditions.

By consistently using genuine XCMG components like the 804437174, owners can maintain the performance and resale value of their equipment, ensuring it remains competitive and productive throughout its operational life.

The precision engineering and strict quality control behind the 804437174 ensure that every unit delivers consistent performance, minimizing the risk of hydraulic failures that can lead to costly downtime and safety hazards. A burst or leaking hose can spray hot oil onto hot engine surfaces, creating a serious fire hazard and immediate loss of function.

With its robust construction, proven reliability, and global availability, the XCMG Hose Assembly 804437174 is the preferred choice for maintenance professionals who demand the highest standards from their hydraulic components.

OEM quality 24h dispatch Global shipping

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