252101147 upper water hose for XCMG ZL50G/ZL50GL Wheel Loader

product parameters

Part No：252101147
Product Type：Engine Cooling Upper Water Hose
Applicable Equipment：XCMG ZL50G / ZL50GL 5 Ton Wheel Loader
Core Technology：EPDM multi-layer fiber reinforced composite structure
Material：EPDM inner rubber, textile fiber reinforcement, EPDM outer rubber
Hose Inner Diameter：42mm
Hose Outer Diameter：54mm
Working Pressure：1.4MPa
Burst Pressure：4.2MPa
Proof Test Pressure：2.1MPa
Connection Type：Belled end for hose clamp connection
Minimum Bend Radius：150mm
Working Temperature Range：-40℃ ~ +135℃
Weight：1.45kg
Applicable Medium：Ethylene glycol based engine antifreeze / cooling water
Application：Upper coolant pipeline connecting engine and radiator for wheel loader

• Multi-layer textile fiber woven reinforcement layer, uniform weaving density, strong pressure resistance, effectively prevent hose expansion and bulging under working pressure.
• Integrated bell mouth molding at both ends, good fit with original pipe joints, uniform clamping force after hose clamp installation, excellent sealing effect.
• Outer rubber compound with ozone and aging resistance, effectively resist heat radiation, dust and gravel scratch inside engine compartment, extend service life.
• OEM overall shape and length, fully consistent with original pipeline layout, no on-site cutting or modification required, reduce maintenance time.
• Good flexibility and vibration absorption performance, buffer the vibration transmitted from engine, reduce fatigue cracking risk at bending and joint positions.
• Excellent medium compatibility, works well with standard ethylene glycol antifreeze, resistant to coolant corrosion and hydrolysis.
• Batch pressure and aging inspection before delivery, every hose passes tightness test, prevent sudden coolant leakage failure on construction site.

FAQ 

Q：What should be noted during upper water hose installation?
A：Clean pipe connectors before installation; align both ends of hose with pipe fittings; tighten hose clamps evenly; avoid excessive twisting or sharp bending of hose. Keep hose away from sharp metal edges and high-temperature components.

Q：What are common causes of upper water hose damage?
A：Long-term high temperature aging; coolant deterioration accelerating inner rubber corrosion; excessive bending during installation; friction with surrounding metal parts; improper hose clamp over-tightening cutting rubber.

Q：Can leaking upper water hose be repaired and reused?
A：Not recommended. Temporary bonding or wrapping repair will fail quickly under high temperature and cyclic vibration. Replace new upper water hose directly once leakage or cracks appear.

Q：How to inspect upper water hose during daily maintenance?
A：Check hose surface for cracks, swelling and coolant seepage before heavy-load operation. Inspect tightness of hose clamps. Focus inspection on bell mouth ends and bending areas, these parts are most vulnerable to aging and leakage.

Q：What failures will a failed upper water hose cause?
A：Damaged upper water hose causes coolant leakage, reducing engine cooling efficiency. Serious rupture leads to rapid coolant loss and engine overheating, which may cause severe engine damage.

Q：Can this upper water hose fit other loader models?
A：This upper water hose is custom made for ZL50G/ZL50GL. Length, inner diameter and bell mouth shape are exclusive. It cannot be fitted directly on other models without modification. Wrong replacement will cause poor sealing and leakage.