803416487 XCMG GR2605 motor grader hose assembly

803416487 XCMG GR2605 motor grader hose assembly

The XCMG GR2605 motor grader’s 803416487 hose assembly is a core high-pressure transmission pipeline in the hydraulic system. It features a three-layer reinforced composite structure with optimized design, offering high-pressure resistance, fatigue resistance, long-lasting leak-proof sealing, wear resistance, and aging resistance. It is a precise original factory fit, ensuring stable and efficient hydraulic oil transmission under heavy-duty conditions.

The 803416487 hose assembly is a core component of the XCMG GR2605 motor grader’s original factory-specific hydraulic pipeline. It is compatible with the machine’s high-pressure hydraulic system, undertaking the crucial task of stable hydraulic oil delivery and pressure transmission. It directly affects the accuracy and response speed of key actuators such as the front wheel tilting main circuit, the left articulated steering assist circuit, and the hydraulic valve group input branch pipeline. In harsh working environments such as highway construction, mine stripping, airport runway construction, and large-scale earthwork projects, where there is long-term heavy load, high-frequency vibration, and erosion from dust and mud, it can stably withstand high-pressure impacts and is not prone to failures such as bursting, oil leakage, aging and cracking. This effectively reduces the frequency of hydraulic system downtime for maintenance and ensures the continuous operation efficiency of the equipment.

The hose features a three-layer reinforced composite structure with optimized design. The inner tube is made of imported oil-resistant nitrile rubber (NBR), with an oil swelling rate of ≤2.1% and excellent chemical corrosion resistance. It is compatible with XCMG original L-HM 46/68 anti-wear hydraulic oil and high-temperature hydraulic oil. The middle layer is a high-tensile-strength galvanized steel wire braided reinforcement layer, using a high-density braiding process, with a breaking strength ≥2090MPa, providing more stable pressure resistance and better deformation resistance. The outer rubber layer is made of wear-resistant and weather-resistant special synthetic rubber material with a Shore hardness of 69HA, excellent flexibility, UV aging resistance, and outstanding resistance to sand and gravel abrasion. It showed no cracking or fading after 6400 hours of outdoor aging testing. The connector is precision forged from 40# steel and treated with phosphate and galvanizing for double anti-corrosion. It is equipped with original custom fluororubber (FKM) sealing rings, achieving an IP66 protection level for sealing performance. It perfectly matches the original vehicle interface specifications and can directly replace aged or damaged original vehicle hoses.

List of Compatible Hydraulic Components

Front Wheel Tilt Main Circuit (Compatible Cylinder Model 803090598)
Left Articulated Steering Auxiliary Circuit (Compatible Cylinder Model 803083235)
Hydraulic Valve Assembly Input Branch Pipeline (Compatible with GR2605 High-Pressure Valve Assembly)
Side Push Cylinder Main Control Circuit (Compatible with GR2605 Dedicated Model)
Hydraulic Pump Inlet Auxiliary Branch Pipeline (Matching Original High-Pressure Hydraulic Pump)
High-Pressure Accumulator Main Connection Pipeline (Supports System Pressure Stability)
Brake Auxiliary Hydraulic Circuit Branch (Compatible with Wet Brake Drive Axle)

Core Parameters

Part Model: 803416487
Product Name: Hose Assembly
Applicable Models: XCMG GR2605 Motor Grader
Application: High-pressure oil transmission and pressure transfer in hydraulic systems
Structure: Three-layer reinforced composite structure (imported NBR inner tube + High-density steel wire braid + special synthetic rubber outer layer) Rated working pressure: 45MPa Instantaneous impact pressure: 65MPa Working temperature range: -45℃ to 129℃ Hose inner diameter: 20mm Standard length: 1130mm (customizable to original factory requirements) Features: Suitable for medium and high pressure applications, impact and fatigue resistant, long-lasting leak-proof seal, wear-resistant and weather-resistant, precise original factory fit, excellent flexibility Applicable working conditions: Heavy-duty flat ground operations such as highways, mines, airports, and earthmoving.

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