803430481 XCMG GR2605 motor grader hose assembly

803430481 XCMG GR2605 motor grader hose assembly

The 803430481 hose assembly is a core component of the XCMG GR2605 grader’s original factory-designated hydraulic system. 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 impacts the accuracy and response speed of key actuators such as the blade’s motion control circuit, the articulated steering assist circuit, and the hydraulic group valve branch lines. In harsh operating environments characterized by long-term heavy loads, high-frequency vibration, and dust and mud erosion, such as highway construction, mine stripping, airport runway construction, and large-scale earthwork projects, it can reliably withstand high-pressure impacts and is less prone to bursting, oil leakage, aging, and cracking. This effectively reduces the frequency of hydraulic system downtime for maintenance, ensuring continuous equipment operation efficiency. The hose features a three-layer reinforced composite structure with an optimized design.

The inner tube is made of imported oil-resistant nitrile rubber (NBR), with an oil swelling rate of ≤2.2% and excellent chemical corrosion resistance. It is compatible with XCMG original L-HM 46/68 anti-wear hydraulic oil and high-temperature hydraulic oil. 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 6200 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 an original custom fluororubber (FKM) sealing ring, achieving an IP66 protection rating, perfectly matching the original vehicle interface specifications, and can directly replace aged or damaged original vehicle hoses.

List of Compatible Hydraulic Components

Shovel Swing Control Circuit (Compatible with Cylinder Model 804000940)
Articulated Steering Auxiliary Circuit (Compatible with Cylinder Model 803083235)
Hydraulic Valve Assembly Branch Pipeline (Compatible with GR2605 High-Pressure Valve Assembly)
Side Push Cylinder Main Circuit (Compatible with GR2605 Dedicated Model)
Hydraulic Pump Outlet Branch Pipeline (Matching Original High-Pressure Hydraulic Pump)
High-Pressure Accumulator Connection Pipeline (Supports System Pressure Stability)
Brake Auxiliary Hydraulic Circuit (Compatible with Wet Brake Drive Axle)

Core Parameters

Part Model: 803430481
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 casing) Rated working pressure: 43MPa Instantaneous impact pressure: 63MPa Working temperature range: -45℃ to 128℃ Hose inner diameter: 18mm Standard length: 1050mm (customizable to original factory requirements) Features: Suitable for medium and high pressure applications, impact and fatigue resistant, long-lasting leak-proof seal, wear and weather resistant, precise original factory fit, excellent flexibility Applicable working conditions: Heavy-duty flat ground operations such as highways, mines, airports, and earthmoving.

Get a personalized quote now

1. 803087366 Front Wheel Steering Cylinder
2. 803430481 Hose Assembly
3. 803103852 Connector
4. 803184017 Connector
5. 803183237 Connector
6. 380603195 Steering Gear Connector Installation
7. 380603204 Priority Valve Connector Installation
8. 803077615 Return Oil Transition Valve Block
9. 380603206 Suction Oil Transition Flange
10. 380603208 Gear Pump Connector Installation
11. 803077614 Merging Block
12. 380603202 Plunger Pump Connector Installation

*For other spare parts procurement needs, please contact us!