The 3076418 upper radiator hose is built for the Hitachi EX400-5 excavator, carrying heated coolant from the engine toward the radiator for cooling. Constructed with high-grade, heat-resistant rubber, this hose remains stable under continuous thermal load and high flow rates typical of large-frame excavators.

Its molded curvature ensures proper routing through the upper section of the cooling system, preventing contact with moving components and maintaining efficient coolant transfer.

• Direct replacement for OEM 3076418

• High-temperature rubber engineered for upper coolant line usage

• Maintains strong flow capacity for effective heat exchange

• Molded for precise fitment on EX400-5

• Durable outer layer resists abrasion, vibration, and coolant exposure

• Supports consistent engine cooling performance

Used in the upper coolant pathway of Hitachi EX400-5 excavators, transporting hot coolant from the engine to the radiator.

We provide compatibility verification, installation assistance, and long-term technical support for cooling system components.

Each hose is individually wrapped with protective padding and shipped through trusted carriers with tracking availability.

• What is the purpose of the YNF17438 upper radiator hose?

• Which excavator model does this hose fit?

• What material is this hose made from?

• Does it meet OEM performance levels?

• Is the hose easy to install?

• When should an upper radiator hose be replaced?

• Is this hose suitable for other Hitachi models?

• Does it help maintain proper cooling efficiency?