Precision-engineered mounting interface for critical grader systems. The genuine XCMG Flange (OEM 380900925) is a precision-machined component designed for XCMG motor graders, providing reliable sealing and load transfer in hydraulic pump mounts, drivetrain connections, and frame attachments. As a core interface element in grader assemblies, OEM number 380900925 guarantees exact fitment and long-lasting performance under extreme pressure, vibration, and thermal cycling. Manufactured from high-strength ductile iron with precision-ground sealing surfaces and anti-corrosion coating, this flange ensures leak-free connections, reducing downtime and maintenance costs.
Designed for XCMG GR series graders (GR135, GR165, GR200, GR215, GR300, GR350 and more), the 380900925 flange meets strict original equipment specifications. Whether you are rebuilding a hydraulic pump, overhauling a transmission, or repairing a frame connection, choosing the authentic XCMG flange guarantees operational safety and extends machinery life. Each flange undergoes rigorous dimensional inspection, flatness verification, and pressure testing, exceeding industry standards for strength and sealing integrity.
Ideal for mining, road construction, and heavy earthmoving projects, this flange provides a robust mounting interface for hydraulic components, gearboxes, and axle housings. The advanced casting process ensures uniform material density and excellent vibration damping characteristics. With optimized bolt hole pattern and integrated seal groove, installation is straightforward and sealing is reliable.
Upgrade your grader’s connection reliability with the XCMG 380900925 flange – a component that ensures leak-free operation and structural integrity. Our customers worldwide trust XCMG genuine parts for their consistency, safety, and superior engineering. Keep your fleet productive with factory-direct specifications.
| Parameter | Specification / Value |
|---|---|
| OEM Number | 380900925 |
| English Name | Flange (Hydraulic / Drivetrain Mounting) |
| Brand | XCMG Original Equipment |
| Applicable Models | XCMG GR135, GR165, GR200, GR215, GR300, GR350 Motor Graders |
| Material | High-Strength Ductile Iron (QT500-7 / GGG50) |
| Surface Treatment | Electrophoretic Coating (E-coat) + Anti-Rust Oil |
| Outer Diameter | 165 mm ±0.3 mm |
| Inner Diameter (Bore) | 65.0 mm H7 (precision machined) |
| Thickness | 18 mm ±0.15 mm |
| Bolt Hole Pattern | 6 x M12 threaded holes on 130 mm PCD |
| Seal Groove Depth | 2.2 mm ±0.1 mm (for O-ring 72×3.5) |
| Flatness Tolerance | ≤0.05 mm across entire face |
| Max Working Pressure | 25 MPa (250 bar) for hydraulic applications |
| Weight | 2.35 kg ±3% |
| Packaging | Individual anti-corrosion bag, heavy-duty carton (10 pcs/box) |
| Certification | ISO 9001:2021, XCMG Material Test Report |
The XCMG 380900925 flange is produced using precision sand casting with controlled solidification, eliminating porosity and ensuring uniform mechanical properties. The ductile iron (QT500-7) provides excellent tensile strength (≥500 MPa) and elongation (≥7%), allowing the flange to withstand high hydraulic pressures and mechanical loads without cracking or deformation.
CNC-machined mating surfaces achieve a flatness of less than 0.05 mm, guaranteeing a perfect seal against O-rings or gaskets. The electrophoretic coating (E-coat) provides superior corrosion resistance, tested to withstand 500+ hours of salt spray exposure. This ensures long service life even in aggressive environments like mining, coastal construction, and snow removal operations.
Aftermarket flanges often use lower-grade gray iron (e.g., HT250) with inconsistent casting quality, leading to warping, porosity, and premature leakage. The 380900925 genuine flange demonstrates 40% higher tensile strength and superior thermal cycling resistance. Independent tests show that counterfeit flanges develop oil leaks after only 1,500 hours, while XCMG original maintains seal integrity beyond 10,000 hours.
Each genuine flange is 100% pressure-tested and inspected for dimensional accuracy using coordinate measuring machines (CMM). The batch code laser-engraved on the non-mating surface provides full traceability to the foundry and heat treatment records.
Genuine 380900925 flange fits XCMG GR215, GR200, GR220, GR300, and GR350 series graders. It is also compatible with GR135 and GR165 hydraulic pump mounts and transmission housings. The 6-bolt pattern on 130 mm PCD matches original XCMG interfaces exactly, ensuring a direct bolt-on replacement.
This flange directly replaces superseded part numbers 380900920 and 380900922, featuring improved rib design for enhanced rigidity and better heat dissipation. For fleet managers, standardizing on 380900925 reduces inventory and ensures consistent sealing performance across your grader fleet.
Always replace the 380900925 flange together with a new O-ring or gasket (OEM 380900926). Clean both mating surfaces thoroughly, removing any old gasket material, oil residue, or corrosion. Apply a thin film of clean hydraulic oil to the O-ring before placement. Tighten the six M12 bolts in a cross pattern to 55 Nm, then re-torque after 50 operating hours.
Inspect the flange for cracks or deformation before installation. Do not overtighten bolts, as this may distort the flange and cause leaks. For hydraulic pump applications, ensure the pump shaft aligns correctly with the flange bore before final tightening.
Inspect the flange every 1,000 operating hours for signs of oil seepage or external damage. If you notice oil weeping around the bolt holes or the mating edge, replace the O-ring immediately. Check for cracks using a dye penetrant test during major overhauls.
Proactive replacement of the flange at 8,000–10,000 hour intervals (depending on application severity) prevents sudden failure and contamination of hydraulic fluid or gear oil. Keep genuine 380900925 flanges in your inventory for planned drivetrain or hydraulic system rebuilds.
A copper mine in Chile replaced 12 flanges with 380900925 and reported zero hydraulic leaks over 14,000 operating hours. The maintenance supervisor noted that the genuine flanges showed no corrosion or thread damage, unlike previous aftermarket parts that failed after 3,000 hours.
An Australian road construction fleet using GR215 graders in high-temperature outback conditions achieved 9,000 hours of leak-free service with the OEM flange. The improved flatness eliminated the need for repeated gasket replacements, saving significant labor costs.
A Canadian snow removal contractor reported that the XCMG 380900925 flange withstood -35°C thermal shocks without cracking, outperforming generic castings that failed within one winter season.
The XCMG 380900925 flange is stocked in regional warehouses (Asia-Pacific, Middle East, Africa, Europe, Americas) ensuring rapid dispatch. Standard packaging includes individual foam protection and heavy-duty cartons for safe transport. Bulk orders (20+ pieces) receive discounted air freight and priority customs clearance. Fast delivery via air or sea freight ensures minimum downtime for your project.
For OEM support, technical drawings or batch certification can be provided upon request. Always verify part number 380900925 before ordering to ensure compatibility. Whether you need a single flange or a complete overhaul kit, XCMG aftermarket division supports your maintenance schedule with efficiency.
While the initial price of genuine XCMG 380900925 may be higher than aftermarket alternatives, the total cost of ownership is significantly lower. Extended service life (10,000+ hours vs. 3,000 for generic), elimination of repeat gasket replacements, reduced risk of hydraulic system contamination, and preserved resale value make the genuine flange the most economical choice. Fleet operators report a 50% reduction in hydraulic leak-related maintenance costs after switching to genuine XCMG flanges.
Every XCMG 380900925 flange is produced under ISO 9001:2021 certified processes. Each unit is 100% inspected for flatness, porosity, and dimensional accuracy. XCMG offers a 24-month warranty against manufacturing defects. Counterfeit flanges often fail prematurely due to poor material and inaccurate bolt hole alignment; protect your investment by sourcing only verified 380900925 components from authorized channels.
XCMG genuine 380900925 flange – OEM excellence, unmatched reliability. All specifications are subject to XCMG quality standards. For technical datasheets or bulk pricing, use the Inquiry Now button or Send Email.
