The genuine XCMG 380300754 Fitting Body is a precision‑machined hydraulic adaptor used in motor grader high‑pressure fluid circuits.
This OEM 380300754 fitting body is manufactured from forged carbon steel with a zinc‑nickel plating for corrosion resistance.
It features a male JIC 37° flare on one end and a female ORFS (O‑ring face seal) on the other, ensuring leak‑free connections under high vibration.
Engineered for XCMG GR135, GR165, GR180, GR215, GR260, GR300, and GR350 motor graders, this fitting body withstands working pressures up to 35 MPa (5,000 psi).
The fitting body is used to connect hydraulic hoses, tubes, and components such as pumps, valves, and cylinders in steering, brake, and implement circuits.
A cracked or corroded fitting causes fluid leakage, pressure loss, and potential system failure. Replacing a damaged fitting with genuine XCMG 380300754 restores sealing integrity and safety.
This adaptor is also found in hydraulic tank drain lines, cooler bypass circuits, and pilot control systems. XCMG 380300754 guarantees OE thread dimensions and reliable performance.
| Parameter | Specification |
|---|---|
| OEM Number | 380300754 |
| Brand | XCMG (Genuine Original Equipment) |
| Product Type | Hydraulic Fitting Body / Adaptor |
| Material | Forged carbon steel (C45 / AISI 1045) |
| Port 1 Type | JIC 37° flare male, 9/16‑18 UNF |
| Port 2 Type | ORFS female, M16×1.5 metric (O‑ring included) |
| Max Working Pressure | 35 MPa (5,000 psi) |
| Burst Pressure (min) | 140 MPa (20,300 psi) |
| Operating Temperature Range | -40°C to +130°C (-40°F to +266°F) |
| Surface Finish | Zinc‑nickel plating (480h salt spray) + yellow chromate |
| Hex Size (Wrench) | 17 mm |
| Seal Compatibility | Nitrile O‑ring (supplied) or copper gasket |
| Standards | SAE J514, ISO 8434‑2, DIN 2353 |
| Fluid Compatibility | Mineral oils, synthetic hydraulic fluids, water‑glycol, diesel |
| Compatible Models | XCMG GR135, GR165, GR180, GR215, GR260, GR300, GR350 |
| Superseded Part Numbers | 380300740, 380300748, 380300752 |
The 380300754 fitting body connects different hydraulic port types (JIC to ORFS) without adaptor stacks, reducing leak points and simplifying maintenance.
In steering and brake circuits, this fitting ensures high‑pressure integrity even under continuous vibration and impulse loads. A faulty fitting can lead to sudden oil loss and loss of control.
The forged construction and precision‑machined sealing surfaces guarantee leak‑free performance across the entire pressure range. Replacing a damaged fitting with genuine XCMG 380300754 restores system reliability.
This adaptor is commonly found on pump discharge lines, valve block interfaces, and cylinder port connections. Proper torque and seal installation are essential for trouble‑free operation.
Each 380300754 fitting body is hot‑forged from C45 steel, providing superior strength compared to brazed or machined‑from‑bar alternatives.
After forging, the part is normalized to relieve internal stresses, then CNC turned to create precise JIC flare seats and ORFS grooves. The cone and seat are lapped to a mirror finish.
The zinc‑nickel plating (12‑15 μm) with yellow chromate topcoat withstands 480 hours of salt spray, protecting against road salt, moisture, and chemical exposure.
XCMG inspects every fitting with go/no‑go thread gauges and a profilometer to ensure seat roughness below Ra 0.8 µm. Sample fittings are pressure‑tested at 52.5 MPa with zero leakage.
Before installing a new 380300754 fitting, clean both ports and inspect for burrs or old sealant residue. Replace any damaged O‑rings.
For the JIC side, lubricate the threads and cone with clean oil. Hand‑thread the fitting into the mating port, then torque to 30‑35 Nm using a crowfoot wrench.
For the ORFS side, ensure the O‑ring is seated. Hand‑thread then torque to 45‑50 Nm. Do not exceed these values to avoid thread stripping or O‑ring extrusion.
After pressurizing the system, inspect for leaks. If a weep is seen, tighten an additional 5° – no more. If the leak persists, replace the fitting or the sealing components.
Never reuse old fitting bodies – they may have developed micro‑cracks or deformed seats. Always install a genuine XCMG 380300754 for guaranteed safety.
Visible hydraulic fluid weeping from the hex flats, rust or pitting on the body, thread damage (cross‑threading or galling), and cracks around the flare seat or ORFS groove.
Also, if the fitting has been overtightened in the past, causing the seat to deform. Replace immediately to avoid sudden oil loss and environmental contamination.
Inspect all hydraulic fittings every 500 operating hours. Look for leaks, corrosion, or loosening. Retorque if necessary but never exceed original values.
A properly installed fitting should last the life of the machine, except when damaged by external impact or corrosion in harsh environments (salt spray, chemical exposure).
In coastal or de‑icing salt regions, inspect more frequently. If the zinc‑nickel plating is worn through, apply a rust inhibitor or replace the fitting.
When disassembling hydraulic lines for component replacement, always install new O‑rings and check the fitting’s sealing surfaces for damage. Replace if any doubt exists.
Genuine XCMG 380300754 fitting bodies are backed by a 12‑month warranty. Regional warehouses: Houston, Rotterdam, Dubai, and Shanghai maintain deep stock.
Standard air freight delivers within 3‑7 business days worldwide. Emergency 24‑48 hour shipping available for urgent hydraulic system repairs.
Bulk orders (20+ fittings) receive volume discounts and sea freight options for fleet maintenance programs.
Aftermarket fittings often use low‑carbon steel that corrodes rapidly, have inaccurate thread angles, and lack proper heat treatment. Genuine XCMG 380300754 ensures correct hardness, dimensional accuracy, and long‑term reliability.
Don’t risk a hydraulic leak that could cause loss of steering, brakes, or implement control. Keep spare fitting bodies in your parts inventory for rapid field replacement.
Order the genuine XCMG 380300754 Fitting Body today and maintain leak‑free, safe hydraulic performance for thousands of operating hours.
Upgrade your motor grader’s hydraulic connection reliability with XCMG genuine fitting bodies – forged, precision machined, and corrosion‑protected.
