Caterpillar Cooling Fan 178-6578 is a fan product that moves cooling air through radiator and heat-exchanger assemblies. It is listed for Caterpillar heavy-equipment applications; use part number 178-6578 as the primary identification reference.
- Part Number: 178-6578
- Brand: Caterpillar
- Product Category: Fan
- Equipment Type: Excavator
- Compatible Models: 318C, 320C FM, 319C, 320C
- Engine Models: Confirm by equipment serial number
- Condition: New
Fitment can vary by machine configuration and serial-number range. Compare the original part number, dimensions, connectors and mounting points before purchase.





