The OEM 803191082 Flange Fitting is a precision-engineered hydraulic flange connector designed exclusively for XCMG motor graders. This heavy-duty component ensures leak-free, high-pressure connections between hydraulic pumps, valve blocks, and large-bore hoses in GR series graders.
Manufactured from forged carbon steel with a zinc-nickel anti-corrosion layer, the 803191082 flange fitting withstands working pressures up to 42 MPa (6090 PSI) and operates reliably from -40°C to +120°C. Its split-flange design (Code 61/62) provides exceptional vibration resistance and sealing integrity under cyclic loads.
Using genuine XCMG 803191082 flange fittings eliminates oil seepage, bolt loosening, and gasket extrusion. Each unit is 100% pressure-tested and dimensionally verified to match original XCMG mounting hole patterns. Upgrade your grader’s hydraulic reliability with authentic OEM quality.
The 803191082 flange fitting uses a two-piece split-flange clamp (male and female halves) that evenly distributes clamping force around the O-ring seal. This design eliminates stress concentration found in threaded fittings, preventing crack initiation under vibration.
The forged carbon steel body provides superior tensile strength (≥600 MPa) and impact resistance at low temperatures. The zinc-nickel coating offers cathodic protection, surviving over 500 hours of salt spray testing per ASTM B117 – ideal for graders working in coastal or winter de-icing environments.
Each 803191082 flange includes a precision-machined groove that holds the O-ring securely, preventing extrusion under pressure spikes. The bolt holes are counterbored to accept Grade 10.9 cap screws, ensuring consistent torque retention over thousands of operating hours.
This flange fitting directly replaces OEM part 803191082 on XCMG GR2153, GR200, GR180, GR3005, and GR3505 graders. Common applications include pump discharge lines, main pressure galleries, steering valve inlets, and brake accumulator feed ports.
For older GR135 and GR165 series, the 803191082 flange offers drop-in compatibility with existing mounting holes. Cross-reference aftermarket numbers: FLG-6142, XCMG-HF210. Standardizing on genuine flanges eliminates mismatched bolt patterns and reduces leak risks.
Before installing the 803191082 flange fitting, clean the mounting surface and O-ring groove. Lubricate the O-ring with clean hydraulic oil. Place the O-ring into the groove, then position the flange halves evenly. Tighten bolts in a star pattern to 35-40 Nm.
Never reuse old O-rings or bolts. The genuine 803191082 kit includes new O-ring and pre-coated bolts. After pressurizing the system, re-torque bolts after the first heat cycle. Inspect for external leakage during initial operation.
All 803191082 flange fittings are produced in XCMG’s ISO 9001:2015 and IATF 16949 certified facilities. Each batch undergoes 100% dimensional inspection, proof pressure testing (1.5x rated pressure), and O-ring groove verification.
Random samples are impulse-tested to 1 million cycles at 133% working pressure. X-ray inspection validates forging integrity. Traceability labels include batch number, material heat code, and date of manufacture.
Counterfeit flanges often use low-grade cast iron or poor-quality seals, leading to sudden flange separation and high-pressure oil sprays. Genuine 803191082 uses forged steel and premium NBR/FKM O-rings, validated by finite element analysis and field trials.
Mining operators report zero flange-related failures after switching to genuine 803191082 fittings on their XCMG GR300 fleets, compared to 12 failures per year with aftermarket parts. Protect your crew and equipment with OEM reliability.
The 803191082 flange fitting is stocked in XCMG regional warehouses across North America, Europe, Asia-Pacific, and the Middle East. Standard lead time: 5-7 working days. Express freight available for urgent breakdowns. Bulk orders receive volume discounts.
Each flange is individually packed in anti-corrosion paper and foam-lined cartons. Technical datasheets and 3D drawings are available on request. XCMG’s parts specialists provide remote installation support for complex hydraulic retrofits.
A large infrastructure contractor in Australia replaced all flange fittings on 18 XCMG GR215 graders with genuine 803191082 components. After 10,000 operating hours, zero leaks or bolt loosening were recorded, reducing hydraulic oil consumption by 83% annually.
In Canadian mining operations, the 803191082 flange demonstrated exceptional cold-weather performance at -45°C, with no seal hardening or bolt fracture. Maintenance intervals extended from 500 to 2,000 hours, significantly lowering total ownership cost.
The 803191082 flange is available in standard sizes: 1/2″, 3/4″, 1″, 1-1/4″, 1-1/2″, and 2″. Custom O-ring materials (Viton®, HNBR, EPDM) can be ordered with a 10-day lead time. Bolt kits with pre-applied thread locker are available separately.
For fleet managers, XCMG offers flange fitting overhaul kits that include all required flanges, bolts, and O-rings for a complete grader hydraulic system refurbishment. Kits come with color-coded labels and installation torque cards.
In summary, OEM number 803191082 represents the industry benchmark for XCMG motor grader hydraulic flange connections. From forging quality to sealing reliability, every detail meets the highest heavy-equipment standards. Never risk hydraulic oil leaks or flange blow-offs. Order the genuine 803191082 flange fitting today and experience the XCMG quality advantage.
With proven reliability in thousands of graders worldwide, the 803191082 flange continues to outperform generic alternatives. Ensure maximum uptime, zero fluid leakage, and extended component life. Choose genuine XCMG for your grader’s high-pressure hydraulic circuits. Secure your fleet’s productivity with OEM authenticity.
