Caterpillar 170-5690 Expander Assembly System Hose is a 0.75 in hose used in Caterpillar expander assembly systems. The part number 170-5690 identifies this hose as a dedicated component within the expander assembly, designed to be paired with other Caterpillar fittings and components. Use where a 0.75 inch hose is required in Caterpillar expander assemblies; ensure compatibility with your machine's fittings and the Caterpillar service documentation.
