803164251 joint for XCMG ZL50G/ZL50GL Wheel Loader

product parameters

Product Name: Connector
Part No.: 803164251
Applicable Model: XCMG ZL50G, ZL50GL Wheel Loader
Type: Hydraulic pipeline connection fitting
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 pipeline connection and sealing
Working Condition: Quarry mining, aggregate yard, heavy earthwork and construction projects

Applicable Scenarios

Used at connection positions between hoses and steel pipes, valve blocks, or cylinders in the hydraulic system of XCMG ZL50G and ZL50GL wheel loaders, commonly found in working hydraulic circuits, steering circuits, and pilot circuits. 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 of hydraulic pipeline systems.

▪ 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 hydraulic circuit pressure
▪ Anti-rust surface treatment resists outdoor mud and dust, reducing corrosion seizure
▪ Can be stocked together with hydraulic hoses, pipe clamps, fixing plates, and related pipeline accessories

FAQ 

Q：When does a 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 system pressure drop.

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

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

Q：Can 803164251 be used on other loader models?
A: Cross-model use is not recommended. The thread specification 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 connector 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.