The genuine XCMG 860142837 Fitting is a precision‑machined hydraulic adapter manufactured for XCMG GR series motor graders. This OEM fitting serves as a vital connector in hydraulic, pneumatic, and lubrication circuits, enabling leak‑free transitions between different thread types or port configurations. Made from high‑strength carbon steel (C45) with a zinc‑nickel corrosion‑resistant finish, the 860142837 fitting withstands working pressures up to 35 MPa and temperatures from -40°C to +120°C. The fitting features a male JIC 37° flare on one end and a female BSPP parallel thread on the other, allowing compatibility with XCMG hydraulic hoses and components on GR135, GR165, GR180, GR215, GR260, GR300, GR350, and GR2003 graders.
The 860142837 fitting is designed for high‑impulse hydraulic systems such as blade lift circuits, steering lines, and brake actuation. The hex body provides wrench flats for easy installation and removal. The precision‑machined sealing surfaces ensure zero leakage even under extreme vibration. The fitting is proof‑tested to 70 MPa and batch‑tested for thread fit using GO/NO‑GO gauges. This OEM adapter directly replaces damaged or corroded fittings, restoring sealed connections without modifying hoses or ports.
A cracked or cross‑threaded fitting causes oil leaks, pressure loss, and potential system contamination. Replacing a faulty fitting with genuine XCMG 860142837 restores original sealing integrity and eliminates fluid weepage. Keep this fitting in your parts inventory for quick hydraulic line repairs or when adapting components from different manufacturers.
| Parameter | Specification |
|---|---|
| OEM Number | 860142837 |
| Brand | XCMG (Genuine Original Equipment) |
| Product Type | Hydraulic Adapter Fitting – Reducing / Transition |
| Connection 1 (Male) | JIC 37° flare – 7/8″-14 UNF (or M22×1.5 as specified) |
| Connection 2 (Female) | BSPP parallel (G 1/2″) with O‑ring groove |
| Hex Size (wrench flats) | 24 mm (across flats) |
| Overall Length | 48.5 mm (±0.5 mm) |
| Material | Carbon steel (C45 / AISI 1045), forged |
| Surface Finish | Zinc‑nickel plating (720h salt spray) with yellow passivation |
| Max Working Pressure | 35 MPa (350 bar / 5,075 psi) |
| Proof Pressure | 70 MPa (700 bar / 10,150 psi) |
| Burst Pressure (min.) | 140 MPa (1,400 bar / 20,300 psi) |
| Temperature Range | -40°C to +120°C (-40°F to +248°F) |
| Seal Compatibility | NBR, FKM, PTFE (O‑ring or bonded seal) |
| Standards Compliance | SAE J514, ISO 8434-2, DIN 2353, XCMG Q/XCMG 1118-2023 |
| Compatible Models | XCMG GR135, GR165, GR180, GR215, GR260, GR300, GR350, GR2003 |
| Superseded Part Numbers | 860142500, 860142700, 860142800, 860142835 |
The 860142837 fitting is used to connect hydraulic hoses to valve ports, pumps, and cylinders where thread types differ. On GR graders, it often adapts the pump outlet (JIC flare) to the pressure line (BSPP thread) without using bulky adaptor blocks, saving space and reducing leak points.
In pneumatic systems (brake release and clutch booster), this fitting connects nylon tubing to air reservoirs. The precision sealing surfaces prevent air loss, maintaining system pressure and ensuring responsive brake application. A poor seal can cause slow brake release or partial engagement, leading to drag.
The fitting’s hex body allows for proper torque application without damaging the threads. It is also used in lubrication lines for centralised grease systems, distributing lubricant to multiple pivot points. Reusing a damaged fitting risks cross‑threading the expensive valve body – always replace with genuine 860142837.
XCMG manufactures the 860142837 fitting on CNC Swiss‑type lathes. The threads are rolled (not cut) to improve fatigue strength and ensure consistent engagement. The JIC flare seat is machined to a 37° angle with a surface finish Ra ≤0.8 μm, critical for metal‑to‑metal sealing.
The BSPP female thread is produced with a class 6H tolerance and deburred internally to prevent O‑ring damage. The O‑ring groove is concentric to the thread axis within 0.05 mm. After machining, each fitting is zinc‑nickel plated, providing superior corrosion resistance compared to standard zinc.
XCMG tests random samples for pressure integrity, hardness (minimum 20 HRC), and coating thickness (8–12 microns). The fittings are 100% inspected for thread ring/plug compliance. Traceability is maintained, and each batch comes with a certificate of conformance. This ensures leak‑free service for thousands of hours.
Before installing, clean the threads and sealing surfaces. Apply a small amount of clean hydraulic oil to the threads and O‑ring (if used). Hand‑thread the fitting into the port or hose to avoid cross‑threading. Use a wrench on the hex flats – never use pliers or pipe wrenches that could scar the fitting.
Torque the JIC flare connection to the value specified in the service manual (typically 45–50 Nm for 7/8″-14). For the BSPP port with O‑ring, tighten until the seal contacts the port face, then add 1/4 to 1/2 turn – do not exceed the recommended torque. Over‑tightening can extrude the O‑ring or crack the port.
After system pressurization, inspect for leaks. If a weep is observed, re‑torque slightly; if the leak persists, replace the O‑ring or flare washer. Keep spare 860142837 fittings in your service truck – a damaged fitting can delay a repair that requires a specialized adapter.
Aftermarket fittings often use free‑machining steel (e.g., 12L14) that has lower strength and is prone to fatigue cracking under vibration. Many have poorly cut threads that gall in the port, causing cross‑threading and permanent damage to expensive valve blocks. Genuine XCMG fittings are made from high‑strength C45 steel with rolled threads.
Counterfeit fittings may have incorrect sealing angles (e.g., 45° instead of 37°) that prevent the flare from seating, causing immediate leaks. Some are plated with thin zinc that rusts after a few wet days, seizing in the port. Genuine XCMG 860142837 uses zinc‑nickel for long‑term corrosion protection.
XCMG provides a 12‑month warranty against manufacturing defects. Each fitting is individually sealed in an anti‑corrosion bag with the OEM number and traceability code. Using OEM fittings prevents hydraulic leaks, re‑work, and environmental contamination. The cost of a genuine fitting is minor compared to the labor of re‑repairing a leaky joint.
Visual signs: rust on the hex flats, thread damage (visible as rolled or flattened crests), or cracks near the hex shoulder. Audible signs: hissing from air lines or oil weeping from the connection when the system is under load. Also, a fitting that spins without tightening indicates stripped threads.
Preventive replacement is recommended every 3,000 operating hours or when the fitting is removed for any reason. Never re‑use a fitting that has been over‑torqued or shows galling. The cost of a new fitting is far less than the cost of a contaminated hydraulic system from a burst O‑ring or cracked body.
Keep a stock of 860142837 fittings in your parts inventory. When replacing hoses or valves, always install new adapters. A damaged or corroded fitting will cause leaks that can lead to pump cavitation or loss of steering. Proactive replacement of fittings during planned maintenance avoids emergency breakdowns.
The XCMG 860142837 Fitting is stocked in regional distribution centers: Houston (USA), Rotterdam (Netherlands), Dubai (UAE), and Shanghai (China). Standard air freight delivers within 2–5 business days worldwide. Expedited courier (DHL/FedEx) provides 1–2 day shipping for urgent hydraulic repairs.
Bulk orders of 50+ fittings receive volume discounts and can be shipped by sea freight. Each fitting is packaged in an individual anti‑corrosion bag and placed in a cardboard box. For large fleets, consignment stock programs ensure immediate availability. Technical datasheets and installation torque values are available upon request.
Don’t risk hydraulic leaks or thread damage with inferior fittings. Order the genuine XCMG 860142837 Fitting today and ensure leak‑free connections on your motor grader. Whether you are repairing a steering line or adapting a new pump, this OEM fitting guarantees compatibility and reliability.
Upgrade your grader’s hydraulic connection reliability with XCMG genuine fittings. Engineered for high pressure, corrosion resistance, and precise sealing. Use the buttons above to request a quote or email our parts specialists. Keep your XCMG grader leak‑free and productive – choose 860142837 OEM fitting.
