Caterpillar Braking Line Air Dryer 450-3729 is a a/c receiver drier product that stores and dries refrigerant while filtering system contaminants. It is listed for Caterpillar heavy-equipment applications; use part number 450-3729 as the primary identification reference.
- Part Number: 450-3729
- Brand: Caterpillar
- Product Category: A/C Receiver Drier
- Equipment Type: Motor Grader
- Compatible Models: 160K, 140K 2, 140K, 140, 120K, 160, 12K, 120K 2
- 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.





