Hose Assembly
Сборка шланга
Conjunto de manguera
The genuine 803374481 Hose Assembly from XCMG is a precision-engineered OEM fluid conveyance component designed for the XDA45U articulated dump truck. This hose assembly delivers reliable hydraulic fluid transfer between critical system components, withstanding extreme pressures, temperatures, and mechanical flexing in demanding mining and heavy construction applications.
| Parameter | Specification |
|---|---|
| OEM Number | 803374481 |
| Hose Type | High-pressure spiral wire reinforced (R13) – 2-wire braid |
| Hose ID | 19 mm (3/4 inch) |
| Length (overall) | 1.85 metres (73 inches) ± 3 mm |
| Max Working Pressure | 35 MPa (5075 psi) |
| Burst Pressure | 140 MPa (20300 psi) |
| End Fittings (both ends) | 1-1/16″ – 12 UNF female swivel (90° elbow on one end) |
| Temperature Range | -40°C to +120°C (-40°F to +248°F) |
| Fluid Compatibility | Mineral oils, synthetic hydraulic fluids, water-glycol |
The 803374481 Hose Assembly is a critical fluid power component engineered by XCMG for articulated dump trucks, including the XDA45U, DA30, and DA40 series. This assembly facilitates the transfer of hydraulic oil between the pump, control valves, and actuators, ensuring precise and responsive machine operation. Constructed with a high-performance spiral wire-reinforced rubber hose (meeting R13 standards) and fitted with precision-machined steel end connectors, the assembly offers exceptional pressure resistance, flexibility, and durability. The hose’s two-wire braid construction provides outstanding impulse life and resistance to abrasion, making it ideal for the high-cycle, high-pressure demands of off-highway equipment.
The 803374481 features a 19 mm (3/4″) internal diameter and a 1.85 metre overall length, with end fittings that include a 90° swivel elbow on one side for optimal routing in tight chassis spaces. The fittings are manufactured from high-strength steel with a zinc-nickel plating, providing excellent corrosion resistance and galling prevention. Each hose assembly is crimped using computer-controlled equipment to ensure consistent, leak-free connections with the correct crimp diameter and compression force. This precision crimping process eliminates the risk of fitting blow-off or premature leakage, even under severe pressure surges and vibration.
Installation of the 803374481 hose assembly is simplified by the swivel fitting design, which allows for proper orientation without twisting the hose. The hose’s flexible construction accommodates equipment articulation and chassis movement without inducing stress at the connection points. Each assembly is supplied with a protective cap to keep the fittings clean during storage and transport. Detailed installation guidelines, including torque values for the fitting connections (80–90 Nm) and routing recommendations to avoid chafing or sharp bends, are provided to ensure safe and reliable operation.
Durability testing confirms that the 803374481 hose assembly withstands over 1 million impulse cycles at 133% of maximum working pressure, far exceeding SAE J1005 requirements. The hose cover is engineered with a high-abrasion synthetic rubber compound that resists cuts, abrasion, and weathering, while the inner tube is compatible with a wide range of hydraulic fluids, including mineral oils, synthetic esters, and biodegradable fluids. This robust construction ensures that the hose remains serviceable throughout its design life, reducing the frequency of replacements and associated downtime.
When compared to generic hydraulic hoses, the 803374481 offers superior performance in terms of pressure rating, impulse life, and dimensional consistency. Generic assemblies often use lower-grade rubber compounds or incorrectly crimped fittings that can lead to premature failure, fluid leaks, and potential safety hazards. The genuine XCMG hose is manufactured under strict quality controls, with each unit tested for electrical continuity, leak integrity, and dimensional accuracy. This ensures that the replacement hose provides the same performance as the original, maintaining the machine’s reliability and safety.
Routine inspection of the 803374481 hose assembly should be performed during scheduled maintenance, checking for signs of chafing, cracking, bulging, or fitting corrosion. If any damage is detected, the hose should be replaced immediately to prevent system failure. XCMG recommends replacement at intervals of 2,000 operating hours or as indicated by visual inspection, depending on the severity of the application. The hose is also compatible with standard replacement fittings and can be re-hosed if the ends remain reusable, offering a cost-effective alternative for fleet operators.
The 803374481 hose assembly is engineered to meet all relevant safety standards, including ISO 6808 and EN 857. Its conductive inner layer allows for electrostatic dissipation, preventing static charge buildup that could lead to sparking or fire hazards in flammable environments. Additionally, the hose’s colour-coded outer layer (black with a yellow identification stripe) facilitates easy identification during maintenance, reducing the risk of incorrect replacement or routing. These safety-focused design features provide added peace of mind for operators and maintenance crews alike.
In conclusion, the 803374481 Hose Assembly is an essential component for maintaining the hydraulic system integrity of XCMG articulated dump trucks. Its robust construction, precision fittings, and reliable sealing ensure that hydraulic power is transmitted efficiently and safely, even under the most severe operating conditions. By choosing the genuine OEM hose assembly, you minimise leak risks, reduce unscheduled downtime, and extend the service life of connected components. Trust XCMG’s engineering excellence to keep your equipment operating at peak performance, with the 803374481 hose assembly providing a durable, dependable connection in your hydraulic circuit.
