252400426 connector for XCMG ZL50G/ZL50GL Wheel Loader

product parameters

Product Name: Articulated Joint
Part No.: 252400426
Applicable Model: XCMG ZL50G, ZL50GL Wheel Loader
Type: Hydraulic pipeline directional/articulated connection fitting
Sealing Type: Matches OEM 24° cone + O-ring sealing structure
Body Material: Carbon steel / alloy steel (subject to actual product)
Surface Treatment: Anti-rust treatment
Function: Pipeline direction adjustment, rigid connection, and sealing
Working Condition: Quarry mining, aggregate yard, heavy earthwork and construction projects

Applicable Scenarios

Used at connection positions in the hydraulic system of XCMG ZL50G and ZL50GL wheel loaders requiring pipeline direction change or relative angle variation, commonly found in steering hydraulic circuits, working attachment pilot circuits, and confined pipeline routing areas. Widely used in quarry, aggregate yard, and earthwork construction sites with heavy loads, dust, and mud splash. It is a key connection component for ensuring flexible pipeline routing and reliable sealing.

▪ OEM interface dimensions and thread specifications for direct replacement on ZL50G/ZL50GL
▪ Matched to OEM 24° cone + O-ring double sealing structure for high fit accuracy and reduced leakage risk
▪ Machined sealing surface for reliable coordination with O-rings/bonded washers, maintaining stable system pressure
▪ Compact structure suits directional connection needs in dense loader pipeline areas
▪ Anti-rust surface treatment resists outdoor mud and dust, reducing corrosion seizure
▪ Factory thread accuracy inspection prevents installation failure from stripping or cross-threading
▪ Can be stocked together with hydraulic hoses, straight fittings, seals, and related pipeline accessories

FAQ 

Q：When does an articulated joint 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 system pressure drop.

Q：Is fitting leakage always caused by the joint itself?
A: Not necessarily. Check whether the O-ring or bonded washer is aged/damaged, the pipeline end sealing surface is intact, and the fitting is tightened to specified torque first. Inspect the joint body after confirming seals and pipe ends are normal.

Q：What to note during articulated joint 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 pipeline interfaces before installation to prevent contaminants from entering the hydraulic system.

Q：Can 252400426 be used on other loader models?
A: Cross-model use is not recommended. The thread specification, angle, and sealing type are designed for ZL50G/ZL50GL pipeline layout. Other models may have different interfaces. Confirm compatibility by part number.

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