XCMG Spare Parts O RING 272X7 803309145

XCMG Genuine O-RING 272×7, part number 803309145, is a precision-engineered sealing component designed for critical hydraulic and pneumatic systems across XCMG’s heavy machinery lineup. This authentic spare part guarantees an exact original equipment fit, ensuring seamless compatibility with the designated assembly grooves without modification.

Fabricated from high-grade nitrile rubber (NBR) with a 70 Shore A hardness, it delivers exceptional resistance to hydraulic oils, diesel fuels, and common industrial chemicals. The material formulation offers stable performance under operating pressures up to 40MPa and temperatures ranging from -30°C to 120°C.

Precision molded to exact dimensions: 272mm inner diameter × 7mm cross-section, adhering to strict ISO 3601-1 standards. Its O-shaped profile provides reliable static and low-speed dynamic sealing, effectively preventing fluid leakage and ingress of dust, dirt, and moisture.

Built for long service life in harsh construction environments, it exhibits superior anti-aging, anti-wear, and excellent compression set resistance. This minimizes downtime for maintenance and replacement, ensuring consistent equipment operation.

As a genuine XCMG spare part, 803309145 undergoes rigorous quality inspections. It is the ideal replacement for maintaining factory sealing performance in excavators, loaders, and other XCMG machinery, ensuring reliability and operational safety.