Direct replacement engine cooling radiator designed for CAT 330GC and 326GC excavators, matching original part numbers 521-5201 and 5215201. This radiator restores the cooling performance of the excavator engine cooling system and keeps the machine running at stable operating temperatures even under heavy digging and loading conditions.
As a core component of the excavator engine parts cooling circuit, this radiator is built with a durable aluminum alloy core and precision-formed tubes and fins to maximize heat dissipation. Every unit is manufactured to strict dimensional tolerances to guarantee a bolt-on fit on the 330GC and 326GC models without modification.
Overheating is one of the most common causes of excavator engine downtime. Installing a correctly matched 521-5201 radiator ensures consistent coolant flow and efficient heat exchange, protecting the engine from thermal stress and prolonging the service life of the entire cooling system. It is an ideal choice for routine engine cooling maintenance and overhaul of 330GC and 326GC excavators.
Note: Please verify the part number and model before ordering. For bulk orders or custom requirements, contact our sales team for details.



