The genuine XCMG 380604111 Liquid Hose is a high‑pressure refrigerant line used in motor grader air conditioning systems.
This OEM 380604111 liquid hose connects the condenser outlet to the expansion valve inlet, carrying high‑pressure liquid refrigerant from the receiver‑drier.
Manufactured from multi‑layer barrier hose with a nylon core to prevent refrigerant permeation, it features a flexible rubber cover resistant to heat, oil, and ozone.
Engineered for XCMG GR135, GR165, GR180, GR215, GR260, GR300, and GR350 motor graders, this hose is a direct replacement for OEM with identical length, end fittings, and routing.
A cracked or leaking liquid hose allows refrigerant loss, reducing cooling performance and causing compressor damage due to oil starvation. Replacing a failed hose with genuine XCMG 380604111 restores proper flow and system efficiency.
This hose is also used in dual‑evaporator systems. XCMG 380604111 guarantees OE fit, barrier‑grade construction, and long‑term reliability in high‑pressure liquid refrigerant service.
| Parameter | Specification |
|---|---|
| OEM Number | 380604111 |
| Brand | XCMG (Genuine Original Equipment) |
| Product Type | A/C Liquid Hose / High‑Pressure Refrigerant Line |
| Hose I.D. (Nominal) | 10 mm (3/8 inch) |
| Overall Length (End to End) | 950 mm ±10 mm |
| End Fitting Type (Condenser Side) | #8 O‑ring female, M18×1.5 |
| End Fitting Type (Expansion Valve Side) | #6 O‑ring male, M16×1.5 (with Schrader valve for pressure test) |
| Hose Construction | Nylon barrier / CPE rubber / polyester braid / EPDM cover |
| Max Working Pressure (Liquid Side) | 3.5 MPa (500 psi) |
| Burst Pressure (min) | 10.5 MPa (1,520 psi) |
| Operating Temperature Range (Inside) | -40°C to +135°C |
| Refrigerant Compatibility | R134a, R1234yf (requires barrier layer) |
| Oil Compatibility | PAG46, PAG100, Ester oil |
| Corrosion Protection (Fittings) | Zinc‑nickel plating (480h salt spray) |
| Standards | SAE J2064 Type C, ISO 8066 |
| Compatible Models | XCMG GR135, GR165, GR180, GR215, GR260, GR300, GR350 |
| Superseded Part Numbers | 380604089, 380604096, 380604108 |
The 380604111 liquid hose transports high‑pressure liquid refrigerant from the condenser/receiver‑drier to the expansion valve. It operates at pressures up to 3.5 MPa (500 psi) and must resist heat, vibration, and chemical attack.
A leak in the liquid line causes immediate loss of charge, leading to rapid compressor failure due to oil starvation and lack of cooling. Even a pinhole leak can empty the system within days.
Replacing a cracked, oil‑soaked, or chafed hose with genuine XCMG 380604111 restores full system pressure, prevents moisture ingress, and ensures reliable cooling in hot, dusty grading environments.
This hose also contains a Schrader valve on the expansion valve side for charging and pressure testing, simplifying service access.
Each 380604111 liquid hose is built with a nylon (polyamide) inner barrier layer that minimizes refrigerant permeation to less than 0.5 g/m²/day (SAE J2064), essential for low‑GWP refrigerants like R1234yf.
Above the barrier is a CPE rubber layer for flexibility, followed by a high‑strength polyester braid that provides burst resistance and prevents kinking. The outer EPDM cover resists engine heat, oil, and road salts.
Fittings are crimped using radial, multi‑compression dies that create a permanent, leak‑proof joint without stress risers. XCMG impulse‑tests each hose at 1.5× working pressure and 80°C for 100,000 cycles.
All hoses are 100% leak‑tested using helium mass spectrometry – zero detectable leakage is required. The zinc‑nickel plated fittings withstand 480 hours of salt spray without red rust.
To replace a leaking liquid hose, recover the refrigerant using an A/C recovery machine. Disconnect the battery to prevent accidental compressor engagement.
Remove the old hose using a backup wrench on the fittings. Clean the mating ports on the condenser and expansion valve. Inspect the threads and O‑ring grooves for damage.
Install new O‑rings lubricated with clean PAG oil (do not use mineral oil). Hand‑thread the new 380604111 hose into both fittings, then torque to 25‑30 Nm (condenser side) and 20‑25 Nm (expansion valve side).
Route the hose away from sharp edges, exhaust components, and moving parts. Use protective spiral wrap where chafing is possible. Evacuate the A/C system for at least 45 minutes, then recharge with the correct refrigerant weight.
Start the engine, turn on A/C, and check for leaks with an electronic detector. If the sight glass shows bubbles after 5 minutes of operation, the system may be under‑charged.
Always replace the receiver‑drier when the system is opened for hose replacement. Keep a spare 380604111 hose in your parts inventory for summer urgency.
Visible oil wetness or dye traces around the hose ends, bulging or soft sections, cracks in the outer cover, and hissing sounds near the fittings when the A/C is running.
Also, low high‑side pressure, poor cooling despite correct charge, and rapid compressor cycling. Replace the hose immediately to avoid compressor failure.
Inspect the liquid hose annually or every 1,000 operating hours. Look for chafing, oil stains, and tight routing. Replace if the outer cover is cracked, hardened, or shows signs of heat damage.
XCMG recommends replacing the 380604111 hose every 4,000‑5,000 hours under normal conditions. In harsh environments (desert, mining, coastal), replace every 2,500 hours.
When replacing the condenser or expansion valve, always install a new liquid hose – contaminants inside a used hose can damage the new components.
Keep the hose clean; mud buildup retains moisture and accelerates cover degradation. Use protective spiral wrap where hoses rub against metal edges or other lines.
Genuine XCMG 380604111 liquid hoses are backed by a 12‑month warranty. Regional warehouses: Houston (USA), Rotterdam (Netherlands), Dubai (UAE), and Shanghai (China).
Standard air freight delivers within 3‑7 business days worldwide. Express 24‑48 hour shipping available for urgent A/C repairs. Bulk orders (10+ hoses) receive volume discounts.
Aftermarket hoses often lack the nylon barrier layer, leading to rapid refrigerant loss (3‑5% per year), poor cooling, and the need for frequent recharges. Genuine XCMG 380604111 ensures negligible permeation and long sealing life.
Do not attempt to repair a leaking hose with tape or epoxy – this is unsafe and will not hold pressure. Keep a genuine spare liquid hose in your parts inventory for emergency field replacement.
Order the genuine XCMG 380604111 Liquid Hose today and maintain a cool, dry, fog‑free cab for your motor grader operator, even in the hottest climates.
Upgrade your grader’s A/C reliability with XCMG genuine liquid hoses – barrier‑grade, crimped, and 100% leak‑tested.
