The YNF17342 upper radiator hose is engineered for the Hitachi ZAXIS70-3G excavator cooling system. It connects the engine to the radiator’s upper inlet, ensuring proper coolant transfer and maintaining stable operating temperatures during heavy-duty work.

Manufactured from robust, temperature-resistant rubber, this hose delivers dependable performance even under continuous thermal cycling and vibration.

• Direct-fit upper radiator hose for ZAXIS70-3G

• Built with durable, heat-resistant rubber compounds

• Maintains consistent coolant flow to support efficient engine cooling

• Designed to resist cracking, swelling, and deformation

• Easy replacement with OEM-style connections

Used in the excavator cooling circuit to guide heated coolant from the engine toward the radiator for effective heat dispersion.

Support includes installation guidance, compatibility checks, and maintenance suggestions for optimal hose lifespan.

Each hose is packed with protective materials and shipped through trusted logistics channels with full tracking.

1. What does the YNF17342 upper radiator hose do?
It carries heated coolant from the engine to the radiator, allowing proper heat exchange.

2. Which excavator model is this hose designed for?
It fits the Hitachi ZAXIS70-3G and replaces OEM part 4686942.

3. What material is the hose made from?
A durable, heat-resistant rubber compound specifically suited for upper coolant line temperatures.

4. Is the installation straightforward?
Yes, it is designed as a direct-fit replacement and doesn’t require special tools.