252101931 oil pipe for XCMG ZL50G/ZL50GL Wheel Loader

product parameters

Product Name: Rear Axle Brake Hose Assembly
Part No.: 252101931
Applicable Model: XCMG ZL50G, ZL50GL Wheel Loader
Matching System: Air-over-hydraulic rear axle brake circuit
Structure: Multi-layer steel wire braided reinforced rubber hose with crimped metal fittings
Transmission Medium: Special brake hydraulic fluid for loader
Installation: Matches original pipe clamps, sealing washers and banjo bolts
Working Condition: Quarry mining, aggregate yard, heavy earthwork and material transfer
Inspection Items: High-pressure leakage test, cyclic bending fatigue test, burst pressure test, visual and crimp inspection

Applicable Scenarios

It serves the rear axle brake hydraulic circuit of XCMG ZL50G and ZL50GL wheel loader, installed on the swing section of rear axle, widely used in quarry, aggregate yard and earthwork construction sites.

▪ OEM length, fitting angle and sealing specification match original pipe clamp position for direct installation without layout modification and leakage risk
▪ Multi-layer steel wire braid delivers excellent pulse pressure resistance, resisting bulging under repeated brake impact with generous burst safety margin
▪ Special brake-fluid compatible inner liner prevents swelling and peeling, reducing internal blockage and dragging brake caused by slow fluid return
▪ Thickened wear-resistant outer cover resists gravel scratch, mud immersion and UV aging, slowing surface cracking under open-air quarry condition
▪ Heavy-duty integrated crimping tightly locks hose and fittings, resisting pull-out and joint leakage under repeated axle swing
▪ Balanced flexibility covers full rear axle swing stroke, avoiding over-tension and sharp bend pressure trapping
▪ Compatible with booster pump, brake caliper, rigid brake pipe and pipe clamps of the same model, convenient for spare parts stocking

FAQ 

Q：Does intact outer cover mean the hose is undamaged inside?
A：Outer appearance cannot reflect inner condition. Inner rubber liner ages and peels internally without visible signs. Periodic inspection and replacement are required to avoid dragging brake or brake failure.

Q：Can I keep working if brake fluid leaks slightly at fitting?
A：Operation must stop immediately. Leakage reduces brake pressure and may lead to soft brake or total brake loss. Depressurize circuit and replace hose assembly.

Q：What are key rules for hose installation?
A：Do not twist hose, reserve swing clearance for rear axle, avoid over-tension. Do not crush hose with clamps. Replace sealing washers. Bleed air and test for leakage after installation.

Q：Can this rear brake hose interchange with front brake hose of the same loader?
A：Interchange is not recommended. Front and rear hoses differ in length, swing stroke and fitting angle. Wrong fit causes sharp bend, interference wear and internal flow blockage.

Q：What should I check on receiving new hose?
A：Verify part number, inspect outer cover for crack and scratch, check crimped fitting deformation and thread condition, test unobstructed flow.