Caterpillar Aftercooler & Lines Install Gasket Kit 9X-6591 is a aftercooler product that cools compressed intake air to support efficient engine operation. It is listed for Caterpillar heavy-equipment applications; use part number 9X-6591 as the primary identification reference.
- Part Number: 9X-6591
- Brand: Caterpillar
- Product Category: Aftercooler
- Equipment Type: Gas Engine
- Compatible Models: G3508, G3512, G3516
- 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.





