The genuine XCMG 380604126 Air Conditioning Compressor is a high‑efficiency SD7H15 type swash plate compressor designed for motor grader cab climate control systems.
This OEM 380604126 A/C compressor provides reliable refrigeration circulation, converting low‑pressure refrigerant gas into high‑pressure hot gas for condensing.
Manufactured with a lightweight aluminum housing, high‑precision pistons, and a heavy‑duty electromagnetic clutch, it delivers stable cooling even under extreme ambient temperatures.
Engineered for XCMG GR135, GR165, GR180, GR215, GR260, GR300, and GR350 motor graders, this compressor is a direct replacement for original equipment with identical mounting, pulley alignment, and port connections.
The compressor features a 7‑piston variable displacement design, which optimizes capacity based on cooling demand, reducing engine load and fuel consumption compared to fixed‑displacement units.
A failed compressor (seized clutch, internal leakage, or bearing noise) results in no cold air, window fogging, and potential belt failure. Replacing a faulty compressor with genuine XCMG 380604126 restores full cooling capacity and protects other A/C components from debris.
This unit is pre‑filled with PAG46 oil and shipped with the ports sealed to prevent contamination. Installing a genuine compressor ensures proper displacement, clutch air gap, and warranty coverage.
| Parameter | Specification |
|---|---|
| OEM Number | 380604126 |
| Brand | XCMG (Genuine Original Equipment) |
| Compressor Type | Swash plate, variable displacement (SD7H15) |
| Displacement | 150 cc/rev (max) / 15 cc/rev (min) |
| Number of Pistons | 7 |
| Refrigerant | R134a or R1234yf (compatible with PAG oil) |
| Oil Type & Quantity | PAG46 (220 cc pre‑filled) |
| Clutch Type | Electromagnetic, 12V DC, with V‑groove pulley |
| Pulley Diameter / Groove | 120 mm / 2‑groove poly‑V (6PK) |
| Clutch Coil Resistance | 3.5–4.5 Ω at 25°C |
| Max Continuous Speed | 7,000 rpm |
| Max Working Pressure (High Side) | 3.0 MPa (435 psi) |
| Operating Temp. Range | -40°C to +110°C |
| Weight (Dry) | 6.8 kg (15 lb) |
| Mounting | 4‑bolt flanged foot (M8 thread) |
| Port Connections | #8 (suction) and #6 (discharge) O‑ring female, M16×1.5 |
| Compatible Models | XCMG GR135, GR165, GR180, GR215, GR260, GR300, GR350 |
| Superseded Part Numbers | 380604110, 380604115, 380604120 |
The 380604126 A/C compressor is the heart of the motor grader’s air conditioning system. It compresses low‑pressure refrigerant vapor from the evaporator into high‑pressure gas for the condenser.
Without a properly functioning compressor, the A/C system cannot circulate refrigerant, resulting in warm air from vents, fogged windows, and operator discomfort.
The variable displacement feature adjusts compressor output to match cooling demand, reducing parasitic drag on the engine and improving fuel economy by up to 5% compared to fixed types.
Replacing a seized or leaking compressor with genuine XCMG 380604126 restores cabin dehumidification and cooling, even in high‑ambient‑temperature environments.
Each 380604126 compressor features an aluminum alloy housing with integrated swash plate and seven axial pistons. The wobble plate angle is controlled by an internal pressure‑sensing valve, varying displacement from 15 cc to 150 cc per revolution.
The electromagnetic clutch uses a high‑torque friction plate and a dual‑groove poly‑V pulley to drive the compressor from the engine serpentine belt. The clutch coil is epoxy‑sealed against moisture.
All seals are made of HNBR (hydrogenated nitrile) for refrigerant compatibility and high‑temperature resistance. XCMG leak‑tests each compressor at 3.5 MPa for 3 minutes; zero leakage is required.
The compressor is shipped with a desiccant bag and port plugs to keep the internal circuit clean. A pre‑filled oil charge simplifies installation.
To replace a failed A/C compressor, recover the refrigerant using an EPA‑approved machine. Remove the serpentine belt and disconnect the electrical clutch connector.
Unbolt the suction and discharge lines, cap them to prevent moisture entry. Remove the four mounting bolts and lift out the old compressor.
Pour the oil from the old compressor into a measuring cup to verify the correct amount. Drain or add PAG46 oil to the new 380604126 unit to match the original volume.
Install the new compressor with new O‑rings lubricated with clean PAG oil. Torque mounting bolts to 25 Nm and line connections to 30 Nm.
Vacuum the system for 45 minutes, then recharge with the exact refrigerant weight (specified on the underhood label). Start the engine and verify clutch engagement and cool air.
Always replace the receiver‑dryer and expansion valve when changing the compressor. Keep a spare 380604126 compressor for quick summer repairs.
No cold air, loud rattling or grinding noise from the front of the engine, clutch not engaging, visible oil residue around the compressor body, and high‑side pressure below normal with a hot condenser.
Also, a seized compressor can snap the serpentine belt, disabling the alternator and water pump. If you hear clutch cycling too frequently or constant noise, replace the compressor immediately.
Inspect the A/C compressor annually or every 1,000 operating hours. Check belt tension, listen for unusual noise, and verify clutch air gap (0.4‑0.6 mm) using feeler gauges.
XCMG recommends replacing the compressor every 6,000‑8,000 hours as a preventive measure. In harsh environments (dusty, high humidity), shorten to 4,000 hours.
When the system is open for any repair, always install a new receiver‑dryer and flush the evaporator/condenser to remove debris. Use only the specified PAG oil and refrigerant type.
A neglected compressor can fail catastrophically, sending metal shards into the entire A/C system, requiring replacement of all components. Preventive replacement avoids that cost.
Genuine XCMG 380604126 A/C compressors are backed by a 12‑month warranty. Regional warehouses in Houston, Rotterdam, Dubai, and Shanghai maintain deep stock.
Standard air freight delivers within 3‑7 business days worldwide. Express 24‑48 hour shipping available for urgent cooling repairs. Bulk orders (5+ units) receive volume discounts.
Aftermarket compressors often use lower‑grade pistons, inferior clutch bearings, and lack proper oil pre‑charge. Genuine XCMG 380604126 ensures correct displacement, clutch gap, and sealing.
Do not rebuild your old compressor – internal wear cannot be reliably fixed in the field. Keep a genuine spare unit in your service truck for fast change‑out.
Order the genuine XCMG 380604126 Air Conditioning Compressor today and maintain a comfortable, fog‑free cab for your motor grader operator.
Upgrade your grader’s cab environment with XCMG genuine A/C compressors – variable displacement, oil‑filled, and 100% leak‑tested.
