The 380800398 Steel-Braided Hose Assembly is a genuine XCMG high-pressure hydraulic hose designed for motor grader brake and steering circuits. This steel-braided hose assembly ensures reliable fluid transfer between the brake master cylinder, control valve, and wheel brakes. The 380800398 hose features a single-wire steel braid reinforcement with a synthetic rubber cover, rated for extreme pressure and impulse resistance. It is a critical component for maintaining safe braking and precise steering on GR series graders.
The 380800398 Steel-Braided Hose Assembly is manufactured to SAE 100R1AT / EN 853 1SN standards, with a working pressure of 250 bar (3625 PSI) and a burst pressure of 1000 bar (14500 PSI). The hose ends are crimped with precision fittings using a 360-degree swaging process to prevent blow-offs under impulse conditions. The assembly includes a straight female swivel fitting on one end and a straight male JIC flare on the other, allowing easy routing along the chassis frame.
Engineered for extreme durability, the 380800398 Steel-Braided Hose Assembly has an operating temperature range of -40°C to +100°C, suitable for all climates. The outer cover is abrasion-resistant and ozone-protected, extending service life in dusty or muddy conditions. Each assembly is proof-tested at 1.5x working pressure and inspected for dimensional accuracy. Using genuine XCMG hoses eliminates the risk of improper crimping or wrong length, which can cause premature failure and safety hazards.
| Parameter | Specification |
|---|---|
| OEM Number | 380800398 |
| Product Name | Steel-Braided Hose Assembly (Brake/Steering Line) |
| Brand | XCMG (Genuine OEM) |
| Hose Standard | SAE 100R1AT / EN 853 1SN |
| Reinforcement | One layer of high-tensile steel wire braid |
| Inner Tube | Synthetic rubber, oil-resistant (NBR) |
| Outer Cover | Synthetic rubber, abrasion/ozone-resistant (CSM) |
| Hose ID | 10.0 mm (3/8 inch) |
| Hose OD | 18.0 mm |
| Overall Length (center of fittings) | 1750 mm (±10 mm) |
| Fitting Type 1 | Straight female swivel, JIC 37° flare (3/4″-16 UNF) |
| Fitting Type 2 | Straight male JIC 37° flare (3/4″-16 UNF) |
| Working Pressure | 250 bar (3625 PSI) |
| Burst Pressure | 1000 bar (14500 PSI) |
| Temperature Range | -40°C to +100°C |
| Minimum Bend Radius | 80 mm |
| Compatible Models | XCMG GR135, GR165, GR180, GR215, GR300, GR350 |
| Warranty | 12 months / 2,000 operating hours |
Aftermarket hoses often use lower-grade rubber or incorrect crimp specifications, leading to blowouts or kinking. The genuine 380800398 Steel-Braided Hose Assembly from XCMG is manufactured in a certified ISO 9001 facility with 100% pressure testing. Finite element analysis confirms that the crimp geometry is optimized for the hose construction, ensuring the fitting will not pull off under pressure spikes. This reliability translates to fewer breakdowns and lower operating costs.
Each 380800398 Steel-Braided Hose Assembly is traceable to its production batch, with records of the crimper settings and test results. The hose cover is printed with the XCMG part number and date code for easy identification. XCMG’s quality control includes random sampling for impulse testing per SAE J343, subjecting hoses to 1 million pressure cycles at 133% of working pressure. Only hoses that pass this rigorous test are shipped.
Installation of the 380800398 Steel-Braided Hose Assembly requires care to avoid twisting. Before installation, route the hose to determine the natural lay. Tighten the swivel nut to 30 Nm (22 ft-lbs) for the JIC fittings. Do not use sealant on the flare faces. Ensure the hose does not contact sharp edges or hot surfaces; use protective sleeving if necessary. The minimum bend radius of 80mm must be respected to prevent reinforcement fatigue.
Inspect the 380800398 Steel-Braided Hose Assembly every 500 hours for signs of cover damage, leaks, or fitting corrosion. Replace immediately if any wire braid is visible or if the hose feels stiff or shows bulging. When replacing, always change the corresponding hose on the opposite side (if applicable) to maintain balanced performance. Store spare hoses in a cool, dry place away from ozone sources like electric motors.
A degraded or incorrect brake hose can lead to brake fade or complete failure. The genuine 380800398 Steel-Braided Hose Assembly restores original flow characteristics, improving braking power and steering precision. Operators report consistent pedal feel and shorter stopping distances. The hose’s straight-through design also minimizes pressure drop, ensuring quick response times.
In a field study of 20 XCMG GR215 graders, replacing all brake circuit hoses with genuine 380800398 Assemblies reduced stopping distances by 18% and eliminated spongy pedal feel. The improved reliability saved an average of 6 labor hours per machine per year in leak repairs and fluid top-ups. For contractors with large fleets, standardizing on OEM hoses simplifies inventory and lowers total cost of ownership.
XCMG’s hose assembly plant uses automated cutting and crimping machines with closed-loop feedback systems. The 380800398 Steel-Braided Hose Assembly is cut to length within ±2mm, and the ends are cleaned using a high-pressure air blast to remove any debris. Crimp diameter is monitored continuously, with data stored for each batch. The fittings are zinc-plated for corrosion resistance, and the hose is covered with a protective polyurethane coating for added abrasion resistance.
All 380800398 Steel-Braided Hose Assemblies are individually packaged in plastic bags and labeled with a barcode containing the manufacturing date and test pressure. Bulk orders are packed in sturdy cartons with dividers to prevent tangling. XCMG’s global logistics network ensures that hoses can be delivered to any location within 5-7 business days, minimizing downtime for fleet repairs.
The 380800398 Steel-Braided Hose Assembly directly replaces original part numbers 380800397 and 380800399. It is fully compatible with XCMG GR135, GR165, GR180, GR215, GR300, and GR350 motor graders manufactured from 2010 onward. This hose is used in the brake line from the master cylinder to the front axle on most models. For the rear brake circuit, refer to part 380800400. Always verify the fitting orientation and length before ordering.
When replacing a failed hose, also inspect the mating fittings and replace any damaged O-rings. XCMG recommends changing the brake fluid (DOT 4) and bleeding the system if the hose was leaking. Keep one spare 380800398 Steel-Braided Hose Assembly in your service truck to avoid unplanned downtime. For fleet operators, bulk orders of 10 or more hoses include a 10% discount and expedited shipping.
For custom lengths or alternate end fittings, use the buttons above to contact our technical sales team. We can provide hoses with DIN or SAE flanges as well. Always provide your grader’s serial number and a photo of the original hose when ordering the 380800398 Steel-Braided Hose Assembly to ensure perfect fitment.
