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In the XCMG XE2000 excavator, O-rings (part number 803498398) are key components for preventing oil leakage and maintaining system cleanliness at hydraulic line interfaces, valve assembly connections, and cylinder end cap seals. Despite their small size, they directly determine the operating efficiency of the hydraulic system and the service life of core components, providing crucial support for the stable operation of the excavator under high-intensity conditions such as heavy-duty mining and earthmoving in infrastructure projects.
This O-ring is made of highly elastic, oil-resistant rubber and processed using a precision vulcanization process, giving it excellent deformation recovery and anti-aging properties. When an excavator is operating, the continuous high pressure in the hydraulic system can easily cause tiny gaps at the joints. The O-ring, through its elasticity, tightly conforms to the sealing surface, precisely filling these gaps and effectively preventing hydraulic oil leakage. This avoids malfunctions such as system pressure drops and operational stalls caused by oil loss. Simultaneously, it prevents external dust and mud from intruding, preventing impurities from wearing down precision components such as hydraulic pumps and valve cores, significantly extending equipment maintenance cycles.
Furthermore, this O-ring exhibits excellent temperature and media resistance, capable of withstanding temperature fluctuations from -20℃ to 120℃ over extended periods. It is also resistant to swelling, hardening, or cracking in media such as hydraulic oil and anti-wear agents, ensuring long-term sealing stability. In terms of dimensional compatibility, it strictly adheres to the specifications of the corresponding sealing position on the XCMG XE2000 excavator, allowing for direct assembly without additional cutting or grinding, significantly simplifying maintenance procedures and reducing equipment downtime. For XCMG XE2000 excavator users, choosing the O-ring with part number 803498398 is a crucial choice for ensuring reliable hydraulic system sealing and reducing operating costs.
803420966 breathingvalve XCMG XE2000 excavator spare parts
1 860168853 HOUSINGFITTINGS
2 860168850 PACKINGMATERIAL
3 805100210 SCREWM5×16
4 803498398 ORING31.7×3.5
5 860168849 BAYONETCOMPONENT
6 860168851 DUSTCOVER
7 860168857 FILTER ELEMENT
8 860168854 COVER
9 860168858 LOCKSEALING BOLT
10 860168852 WARNINGSIGN
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