YNF17388 5I-8045 Steel Tube for CAT 320B / 320C Excavator

The YNF17388 steel tube is engineered as a precise replacement for the CAT 320B and 320C excavators. Manufactured from high-strength steel, this tube offers excellent rigidity and pressure resistance, ensuring stable performance in demanding hydraulic and fluid-transfer systems.

Its accurate bends and clean internal surface support efficient flow while maintaining structural integrity under vibration and heavy machine load.

• Direct replacement for OEM part number 5I-8045

• High-strength steel construction with excellent durability

• Precision-formed tube shape for correct routing and secure fit

• Resistant to pressure, impact, and vibration

• Ensures stable and efficient fluid transfer

• Designed for long-term reliability in harsh working conditions

Used on CAT 320B and 320C excavators for fluid transport within hydraulic or cooling-related circuits, depending on system configuration.

We provide installation guidance, compatibility confirmation, system troubleshooting assistance, and long-term technical support.

Each tube is protected with foam padding and anti-corrosion wrapping, then packed securely for safe transport with full tracking information.

• What is the function of the YNF17388 steel tube?

• Which models are compatible with OEM 5I-8045?

• What material is this tube made from?

• Does this tube meet OEM standards?

• Is installation straightforward for this steel tube?

• How can I tell if my original tube needs replacement?

• Is this tube suitable for other CAT excavator models?

• Does the tube require any special maintenance