Caterpillar Hydraulic Oil Cooler Radiator 345-3609 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 345-3609 as the primary identification reference.
- Part Number: 345-3609
- Brand: Caterpillar
- Product Category: Hydraulic Oil Cooler
- Equipment Type: Track Loader, Skid Steer Loader
- Compatible Models: 257D, 257D3, 259D, 259D3, 242D3, 236D3, 236D, 242D
- 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.





