803004348 hose for XCMG ZL50G/ZL50GL Wheel Loader

product parameters

Part No：803004348
Product Type：Air Intake Hose
Applicable Equipment：XCMG ZL50G / ZL50GL 5 Ton Wheel Loader
Core Technology：Multi-layer composite rubber with polyester fiber reinforcement, integrated molding at both ends, anti-aging ozone-resistant rubber formulation
Material：Reinforced composite rubber
Total Length：620mm
Inner Diameter of Two Ends：112mm
Wall Thickness：6.5mm
Min Bending Radius：140mm
Burst Pressure：0.35MPa
Working Temperature Range：-40℃ ~ +130℃
Single Weight：1.85kg
Installation：Fixed by air filter clamps on both ends
Application：Connect air filter and engine intake, transport combustion air, keep intake airtight, block dust entering engine

• Multi-layer fiber reinforced rubber construction, high tensile strength, resistant to stretching and bursting under vibration.
• Special anti-ozone and anti-aging rubber formula, extend service life under high temperature and dusty engine compartment.
• Integral molded ends, good fitting with OEM pipe size, excellent sealing effect with matching clamps.
• Smooth inner wall reduces air resistance, ensures sufficient air intake volume and stable engine combustion efficiency.
• OEM bending shape, avoids excessive stretching or extrusion after installation, no interference with surrounding components.
• Good low-temperature flexibility, will not harden and crack in cold winter working conditions.
• High air tightness performance, effectively block fine dust from entering engine to reduce wear.
• Batch air tightness and fatigue inspection before delivery, eliminate defective hoses and reduce on-site failure risk.

FAQ 

Q：What signs mean the intake hose needs replacement?
A：Rubber surface hardening / cracking, bulge, delamination, permanent deformation, air leakage at joints, obvious dust marks inside the hose.

Q：What should be noted during hose installation?
A：Clean pipe joint surface before installation; align hose ends to both interfaces; install clamps in proper position; tighten clamp torque moderately. Do not over-stretch the hose during assembly.

Q：What are common causes of hose damage?
A：Long-term vibration fatigue; high temperature aging; ozone corrosion; excessive stretching during installation; sharp parts scratch rubber surface; oil contamination.

Q：Can cracked intake hose be repaired and reused?
A：Not recommended. Temporary adhesive repair cannot resist vibration and pressure. Cracked hose will leak air easily, leading to engine wear. Replace new hose directly.

Q：How to inspect hose during daily maintenance?
A：Check hose surface, rubber cracks and joint air leakage before heavy-load operation. Focus inspection on bending area and both end connection zones, these positions are prone to aging cracking.

Q：What failures will a failed intake hose cause?
A：Damaged hose leads to air leakage, insufficient air intake and reduced engine power. Dust will pass through gaps and enter engine cylinder, accelerate wear, raise fuel consumption and shorten engine service life.

Q：Can this hose fit other loader models?
A：This hose is custom made for ZL50G/ZL50GL. Total length, bending shape and both-end diameters are exclusive. It cannot be fitted directly on other models without modification. Wrong replacement will result in poor sealing.