251500110 joint for XCMG ZL50G/ZL50GL Wheel Loader

product parameters

Product Name: Oil Pump Connector
Part No.: 251500110
Applicable Model: XCMG ZL50G, ZL50GL Wheel Loader
Type: Oil pump and pipeline connection fitting
System Position: Hydraulic oil pump inlet/outlet
Sealing Type: Matches OEM sealing structure (subject to actual product)
Body Material: Carbon steel / alloy steel (subject to actual product)
Surface Treatment: Anti-rust treatment
Function: Rigid connection and sealing between oil pump and pipeline
Working Condition: Quarry mining, aggregate yard, heavy earthwork and construction projects

Applicable Scenarios

Widely used in quarry, aggregate yard, and earthwork construction sites with heavy loads, dust, and mud splash. It is a basic accessory for ensuring reliable connection and stable sealing between the hydraulic pump source and pipeline system.

▪ OEM interface dimensions and thread specifications for direct replacement on ZL50G/ZL50GL
▪ Factory thread accuracy inspection prevents installation failure from stripping or cross-threading
▪ Machined sealing surface for reliable sealing with O-rings/bonded washers, reducing leakage risk
▪ Structural strength meets system working pressure requirements, maintaining stable pump source pressure
▪ Anti-rust surface treatment resists outdoor mud and dust, reducing corrosion seizure
▪ Can be stocked together with hydraulic hoses, oil pump parts, and seals

FAQ 

Q：When does an oil pump connector need replacement?
A: Replace when the sealing surface or threads are damaged, O-ring aging causes leakage, the fitting is corroded and seized unable to disassemble or tighten, or threads are stripped. Continued use may cause persistent oil leakage and pump source pressure drop.

Q：Is oil seepage at the oil pump connector always caused by the connector itself?
A: Not necessarily. Check whether the O-ring or bonded washer is aged/damaged, the pump interface and pipe end are intact, and the fitting is tightened to specified torque first. Inspect the connector body after confirming seals and interfaces are normal.

Q：What to note during oil pump connector installation?
A: Confirm thread specification and sealing type match the original. Tighten to specified torque to avoid over-tightening damage to threads or sealing surface. Clean interfaces before installation to prevent contaminants from entering the hydraulic system.

Q：How to maintain the oil pump connector daily?
A: Periodically inspect for oil seepage traces. During hydraulic system maintenance, check O-ring condition and replace promptly if aged. Keep the fitting surface clean to prevent long-term mud adhesion causing corrosion.