The genuine XCMG 380604109 Suction Hose is a high‑quality A/C suction line designed for motor grader cab air conditioning systems. This OEM 380604109 suction hose connects the evaporator outlet to the compressor inlet, carrying low‑pressure refrigerant vapor back to the compressor.
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 suction hose is a direct replacement for original equipment with identical length, end fittings, and routing geometry.
The hose is fitted with factory‑crimped aluminum or steel end fittings (O‑ring style) with 100% leak‑tested joints. A worn or cracked suction hose allows moisture and air ingress, leading to A/C inefficiency, compressor damage, and poor cooling.
Replacing a leaking suction hose with genuine XCMG 380604109 restores proper refrigerant flow, prevents compressor slugging, and ensures long‑term A/C reliability in hot, dusty operating environments.
This hose is also used in hybrid or auxiliary evaporator circuits. XCMG 380604109 guarantees OE fit, barrier‑grade construction, and extended service life.
| Parameter | Specification |
|---|---|
| OEM Number | 380604109 |
| Brand | XCMG (Genuine Original Equipment) |
| Product Type | A/C Suction Hose / Refrigerant Return Line |
| Hose I.D. (Nominal) | 18 mm (¾ inch) |
| Overall Length (End to End) | 1250 mm ±10 mm |
| End Fitting Type (Evaporator Side) | #8 O‑ring female, M18×1.5 |
| End Fitting Type (Compressor Side) | #10 O‑ring male, M22×1.5 (suction port) |
| Hose Construction Layers (from inside out) | Nylon barrier / CPE rubber / polyester braid / EPDM cover |
| Max Working Pressure (Suction Side) | 2.0 MPa (290 psi) |
| Burst Pressure (min) | 8.0 MPa (1,160 psi) |
| Operating Temperature Range (Inside) | -40°C to +135°C |
| Corrosion Protection (Fittings) | Zinc‑nickel plating (480h salt spray) |
| Standards | SAE J2064 Type C, ISO 8066 |
| Compatible Models创业 | XCMG GR135, GR165, GR180, GR215, GR260, GR300, GR350 |
| Superseded Part Numbers | 380604088, 380604095, 380604102 |
The 380604109 suction hose carries low‑pressure, low‑temperature refrigerant gas from the evaporator back to the compressor. It is the longest hose in the system and must withstand continuous flexing due to engine vibration and cab movement.
A porous or cracked suction hose allows moisture and non‑condensable gases to enter the system, causing ice formation in the expansion valve and compressor damage.
Replacing a leaking suction hose with genuine XCMG 380604109 restores proper superheat control, prevents compressor slugging with liquid refrigerant, and maintains cool air output even in high‑ambient conditions.
The barrier layer is essential for modern low‑GWP refrigerants like R1234yf, preventing permeation and reducing environmental impact.
Each 380604109 suction hose is built with a nylon (polyamide) inner barrier layer that minimizes refrigerant permeation to less than 0.5 g/m²/day (SAE J2064). Above the barrier is a CPE rubber layer for flexibility.
A high‑strength polyester braid provides burst strength and resistance to kinking, while an outer EPDM cover protects against engine heat, oil, and road salt.
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.
To replace a leaking suction hose, recover the refrigerant using an A/C recovery machine. Remove the hose clamps (if any) or disconnect the fittings using a backup wrench.
Inspect the mating ports on the evaporator and compressor for damaged threads or O‑ring grooves. Clean the fittings and install new O‑rings lubricated with clean PAG oil.
Route the new 380604109 hose exactly as the original, avoiding contact with sharp edges, exhaust components, or moving parts. Use protective sleeves where needed.
Torque the fittings to manufacturer specification (typically 25‑30 Nm). Do not overtighten – this can strip threads or cut the O‑ring.
Evacuate the A/C system for at least 45 minutes, then recharge with the exact refrigerant weight. Start the engine, turn on A/C, and check for leaks with an electronic detector.
Always replace the receiver‑dryer when the system is open. Keep a spare 380604109 hose for quick summer breakdowns.
Visible oil wetness or dye traces around the hose ends, soft or bulging sections, cracks in the outer cover, and hissing sounds near the fittings when the A/C is running.
Also, low suction pressure, evaporator freezing up, or compressor cycling rapidly. Replace the hose immediately to avoid compressor failure.
Inspect the suction hose annually or every 1,000 operating hours. Look for chafing, oil stains, and tight routing. Replace if the outer cover is cracked or hardened.
XCMG recommends replacing the suction hose every 4,000‑5,000 hours under normal conditions. In harsh environments (desert, mining, coastal), replace every 2,500 hours.
When replacing the compressor or evaporator, always install a new suction 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.
Genuine XCMG 380604109 suction 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 suction 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 380604109 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 hose in your parts inventory for emergency field replacement.
Order the genuine XCMG 380604109 Suction 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 suction hoses – barrier‑grade, crimped, and 100% leak‑tested.
