Caterpillar Hydraulic Oil Cooler Core 378-1259 is a hydraulic oil cooler product that removes excess heat from the hydraulic-oil circuit. It is listed for Caterpillar heavy-equipment applications; use part number 378-1259 as the primary identification reference.
- Part Number: 378-1259
- Brand: Caterpillar
- Product Category: Hydraulic Oil Cooler
- Equipment Type: Mini Excavator
- Compatible Models: 305E, 305.5E2 CR, 305E2, 305E2 CR, 305.5E2, 305.5E
- 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.





