The genuine XCMG 380901220 Heated Water Pipe is an engine coolant hose used for preheating and cab heater systems on motor graders.
This OEM 380901220 heated water pipe is manufactured from high‑grade EPDM rubber with polyester reinforcement, rated for 1.0 MPa (145 psi) coolant pressure.
It is designed to withstand temperatures from -40°C to +120°C, ensuring reliable hot coolant circulation in extreme cold weather conditions.
Engineered for XCMG GR135, GR165, GR180, GR215, GR260, GR300, and GR350 motor graders, this pipe connects the engine outlet to the cab heater core or block heater.
A cracked or leaking heated water pipe causes coolant loss, engine overheating, and loss of cab heat – critical issues in freezing climates.
Replacing a damaged pipe with genuine XCMG 380901220 restores proper coolant flow, maintains engine operating temperature, and keeps the operator warm.
This hose is also used in engine preheat circuits for cold starts below -20°C, reducing wear and improving fuel efficiency.
| Parameter | Specification |
|---|---|
| OEM Number | 380901220 | 63
| Brand | XCMG (Genuine Original Equipment) |
| Product Type | Coolant Hose / Heater Water Pipe / Engine Preheating Line |
| Material | EPDM rubber, 2-ply polyester reinforcement |
| Inner Diameter (ID) | 19 mm (¾ inch) |
| Overall Length | 850 mm ±5 mm |
| Wall Thickness | 4.0 mm ±0.3 mm |
| Maximum Working Pressure | 1.0 MPa (145 psi) |
| Burst Pressure (min) | 3.0 MPa (435 psi) |
| Temperature Range | -40°C to +120°C (-40°F to +248°F) |
| Fluid Compatibility | Ethylene glycol coolant (50/50 mix), water, antifreeze |
| Standards | SAE J20R3, ISO 4081, DIN 73411 | End Fittings | Smooth ends for clamp connections (2x spring clamps included) |
| Ozone Resistance | No cracking after 72h at 50 pphm, 40°C |
| Compatible Models | XCMG GR135, GR165, GR180, GR215, GR260, GR300, GR350 |
| Superseded Part Numbers | 380901202, 380901215, 380901218 |
The 380901220 heated water pipe carries hot coolant from the engine to the cab heater core, providing defrost and comfort heat for the operator.
In cold climates, this hose is also used in engine block preheater circuits, which warm the coolant before starting to reduce engine wear and improve cold‑start reliability.
Without a properly sealed heated water pipe, the cooling system loses pressure, coolant leaks out, and the engine may overheat or the cab heater fails to work.
Replacing a cracked or swollen hose with genuine XCMG 380901220 restores full coolant circulation, prevents freeze‑up, and ensures operator comfort in winter conditions.
This hose is also found in auxiliary heater circuits for battery blankets and fuel warmers on extreme‑cold spec graders.
Each 380901220 hose is extruded from high‑quality EPDM rubber compound, offering excellent resistance to hot glycol, ozone, and weathering.
Two layers of polyester cord reinforcement provide burst strength while maintaining flexibility for routing around engine components.
The smooth bore minimizes flow restriction, ensuring full coolant flow to the cab heater even at idle speeds.
XCMG tests each hose sample for ozone cracking, pressure impulse (50,000 cycles), and heat aging to verify long service life.
The hose is cut to exact length and fitted with spring clamps in the genuine OE pack, ready for direct installation.
To replace a leaking heater hose, first drain the coolant to a level below the hose connections. Use a container to catch coolant.
Release the spring clamps using pliers and slide them back. Remove the old hose – it may be stuck due to heat vulcanization; twist to break free.
Inspect the metal pipe ends for corrosion or pitting. Clean with emery cloth if necessary. Slide the new 380901220 hose onto both fittings.
Position the spring clamps over the hose ends, ensuring they sit behind the pipe bead. Refill the cooling system and purge air by running the engine with the heater on full.
Inspect for leaks after reaching operating temperature. Never reuse old hoses – they become brittle and can fail suddenly.
Visible coolant drips under the cab or engine area, low coolant level with no external radiator leak, loss of cab heat, and a sweet smell of coolant inside the cab.
Also, bulging or softening of the hose, cracks on the outer cover, and white residue (dried coolant) near the connections.
If the hose feels hard and inflexible, it should be replaced proactively before a blowout occurs.
Inspect all coolant hoses every 500 hours or at each oil change. Squeeze the hose – if it feels crunchy or has cracks, replace it.
XCMG recommends replacing the 380901220 heated water pipe every 4,000 operating hours or every 2 years, whichever comes first, under normal conditions.
In severe cold climates or with frequent coolant changes, shorter intervals (3,000 hours) are advised. Always use genuine coolant to extend hose life.
When replacing coolant, inspect all heater and radiator hoses at the same time. Keep a spare hose in your winter service kit.
Genuine XCMG 380901220 heated water pipes are backed by a 12‑month warranty against manufacturing defects.
Regional stocking hubs: Houston (USA), Rotterdam (Netherlands), Dubai (UAE), and Shanghai (China) maintain deep inventory year‑round.
Standard air freight delivers within 3‑7 business days worldwide. Emergency 24‑48 hour shipping available for cold‑weather breakdowns.
Bulk orders (10+ hoses) receive volume discounts and sea freight options for fleet maintenance programs.
Aftermarket hoses often use inferior nitrile rubber that hardens quickly, cracks, and leaks. Genuine XCMG 380901220 uses EPDM for long life in all climates.
Don’t lose cab heat or risk engine overheating – a failed heater hose can leave you stranded and cold. Keep a genuine spare hose in your parts inventory.
Order the genuine XCMG 380901220 Heated Water Pipe today and ensure reliable coolant flow, cab warmth, and engine protection for thousands of hours.
Upgrade your motor grader’s cold‑weather readiness with XCMG genuine hoses – EPDM reinforced, precision cut, and ready to install.
