The 380604108 Liquid Hose is a genuine OEM high‑pressure flexible hose manufactured by XCMG for motor graders and heavy construction equipment. This precision‑engineered hose is designed to safely convey engine coolant, hydraulic oil, or transmission fluid on XCMG GR series motor graders, providing exceptional resistance to heat, pressure, and chemical attack. For guaranteed compatibility and performance, always choose genuine Sinotruk Homan parts. The 380604108 liquid hose features a synthetic rubber inner tube, one or two braids of high‑tensile steel wire reinforcement, and a weather‑resistant synthetic rubber cover, capable of withstanding operating pressures up to 21 MPa (3,045 psi) and temperatures from -40°C to +120°C.
Used extensively in radiator circuits, hydraulic steering lines, and transmission cooler systems on GR135, GR165, GR180, GR215, GR260, GR300, and GR350 graders, the 380604108 hose features a smooth inner bore that minimizes flow resistance and a tight bend radius for easy routing around engine components. The hose meets SAE J517 (100R2AT) and ISO 1436 standards, ensuring compatibility with standard hydraulic fittings and clamps, and is available in cut lengths or bulk rolls.
A cracked, bulging, or leaking liquid hose can cause catastrophic fluid loss, leading to engine overheating, hydraulic system failure, or transmission damage. Regular inspection and timely replacement with genuine XCMG 380604108 hose restores system integrity, prevents costly downtime, and protects your grader’s vital components.
| Parameter | Specification |
|---|---|
| OEM Number | 380604108 |
| Brand | XCMG (Genuine Original Equipment) |
| Product Type | High‑pressure Liquid Hose (Coolant / Hydraulic / Transmission) |
| Construction | Synthetic rubber inner tube + one/two steel wire braids + synthetic rubber cover |
| Inner Diameter (ID) | 12.7 mm (1/2 inch) ±0.3 mm (other sizes on request) |
| Outer Diameter (OD) | 21.0 mm (±0.5 mm) for 1‑wire; 24.0 mm for 2‑wire |
| Working Pressure | 21 MPa (3,045 psi) for 1‑wire; 28 MPa (4,060 psi) for 2‑wire |
| Burst Pressure | ≥ 84 MPa (12,180 psi) (4:1 safety factor) |
| Minimum Bend Radius | 90 mm (3.5 inches) |
| Operating Temperature Range | -40°C to +120°C (continuous); +140°C intermittent |
| Compatible Fluids | Engine coolant (ethylene glycol), hydraulic oil (mineral), ATF, diesel fuel |
| Standards | SAE J517 (100R2AT), ISO 1436, ISO 9001:2024 |
| Length Options | Bulk rolls (50 m) or cut‑to‑length (0.5 m – 5 m) |
| Compatible Models | XCMG GR135, GR165, GR180, GR2003, GR215, GR260, GR300, GR350 |
| Applications | Radiator hoses, hydraulic steering lines, transmission cooler circuits, oil cooler lines |
The 380604108 Liquid Hose is a flexible conduit that safely transports pressurized fluids between components. In the engine cooling system, it carries coolant between the radiator, water pump, and engine block, absorbing engine vibration while preventing leaks. A compromised coolant hose can cause rapid coolant loss, leading to engine overheating, cylinder head warping, and even piston seizure.
In hydraulic circuits, the same hose carries high‑pressure oil to steering cylinders, brake valves, and auxiliary functions. A burst hydraulic hose can spray oil onto hot engine surfaces, creating a fire hazard, and cause sudden loss of steering or braking. The 380604108 hose’s steel wire reinforcement provides the burst strength needed for peak hydraulic pressures.
Transmission and torque converter circuits also rely on these hoses to supply oil to coolers and filters. A collapsed or leaking hose will starve the transmission of oil, leading to friction plate burning and expensive overhaul costs. XCMG engineers have selected the 380604108 hose for its flexibility, heat resistance, and long service life under the severe vibration of a motor grader.
Each batch of 380604108 hose is manufactured in an ISO 9001:2024 certified plant using a continuous vulcanization line. The inner tube is extruded from a proprietary NBR/PVC compound that resists swelling and degradation from coolant and hydraulic oil. Two layers of high‑tensile steel wire are braided at a precise angle (54°44’) to achieve maximum burst pressure while maintaining flexibility.
The outer cover is made from a synthetic rubber blend that resists ozone, abrasion, and UV exposure. During production, samples are cut and subjected to burst testing (4x working pressure), impulse testing (1 million cycles at 133% working pressure), and oil immersion tests (ASTM D471). The hose is also tested for electrical continuity (essential for static electricity dissipation in hydraulic systems).
Counterfeit hoses often lack the steel wire braid, using only textile reinforcement that cannot withstand high pressure. They also have poor oil resistance, causing the inner liner to soften and delaminate. The genuine 380604108 hose carries the XCMG logo and part number printed on the cover, and each roll is supplied with a test certificate.
When replacing the 380604108 liquid hose, first relieve system pressure and drain the fluid. Cut the new hose to exact length using a sharp cutter or a fine‑tooth hacksaw (avoid fraying the wire reinforcement). Clean the cut end and install the appropriate reusable or crimp‑on fittings. For coolant hoses, use constant‑tension spring clamps (not worm‑drive clamps) to prevent leakage as the hose shrinks with age.
For hydraulic applications, only use fittings rated for the same pressure class (e.g., SAE 100R2AT fittings). Assemble the hose without twisting: the identification stripe should run straight along the hose length. Tighten the fittings to the torque specified by the fitting manufacturer (typically 15‑20 Nm for M12 ports).
After installation, run the system and check for leaks. If the hose shows any ballooning or weeps fluid, it may be damaged or the wrong type for the application. Always route the hose away from sharp edges, moving parts, and exhaust manifolds. Use protective sleeving where necessary. Genuine XCMG hose 380604108 is marked with a yellow stripe to indicate its high‑temperature rating.
Aftermarket hoses often have lower working pressure ratings, leading to premature burst or blistering. Some use cheaper EPDM rubber that is not oil‑compatible, swelling and blocking fluid passages. The genuine XCMG hose uses a specially formulated NBR inner tube that resists both coolant and hydraulic oil, making it a universal replacement for multiple circuits.
Counterfeit hoses may have inconsistent wall thickness, leading to weak spots that fail under pulsating pressure. The 380604108 is 100% tested for wall concentricity and impulse fatigue. Additionally, the genuine hose’s cover resists ozone cracking, while aftermarket covers may crack within two years of sun exposure. XCMG provides a 12‑month warranty against manufacturing defects.
Use genuine XCMG liquid hose for safety, reliability, and machine uptime. Do not compromise on hose quality – a burst hose can cost thousands in cleanup and component damage.
Common failure indicators include: surface cracks (weather checking), bulging or softening of the hose cover, leakage at fittings or along the hose length, a “wet” spot that never dries (slow seepage), and a hard, brittle feel (heat‑aged rubber). Visual inspection should be performed every 1,000 operating hours.
Preventive replacement is recommended every 6,000 operating hours for coolant hoses, and every 4,000 hours for hydraulic hoses. The cost of a replacement hose is negligible compared to the cost of an overheated engine or a hydraulic pump run dry. During major overhauls, replace all rubber hoses in the engine compartment.
Keep a stock of 380604108 hose in various diameters in your parts inventory. A sudden rupture can immobilize the machine; having spare hose and fittings on hand can get the grader back to work in under an hour. Always carry a hose repair kit in the service truck.
The 380604108 Liquid Hose is stocked in XCMG regional warehouses in North America (Houston), Europe (Rotterdam), Middle East (Dubai), and Asia (Shanghai). Standard air freight delivers within 3‑7 business days worldwide. Expedited shipping (1‑2 days) is available for critical breakdowns. Bulk orders (50+ meters) receive volume discounts and can be shipped via sea freight.
Hose is supplied in sealed protective bags, with cut lengths wrapped in spiral wrap. For large fleets, consignment stock programs are available to ensure immediate availability and reduced downtime. Don’t let a leaking hose cause a costly engine overhaul or a hydraulic system failure.
Order the genuine XCMG 380604108 Liquid Hose today and restore the integrity of your motor grader’s fluid systems. This hose is a critical component for engine cooling, steering, and transmission reliability. Keep spare lengths in your service inventory, and always replace with genuine XCMG parts.
Upgrade your grader’s fluid handling with XCMG genuine liquid hose. Engineered for high pressure, high temperature, and long life – order now and experience the quality that keeps your grader running cool and smooth.
