Radiator - CSF 3781

also fits Honda Si | Upgraded Heavy Duty Core. 11% Thicker 30mm vs OEM 27mm

The radiator dissipates heat from the engine coolant by passing it through a matrix of tubes and fins exposed to airflow, maintaining the engine within its safe operating temperature range. Signs of a failing radiator include: an engine that overheats, visible green or orange coolant leaking from the radiator core or tank, a damaged plastic end tank, or internal deposits visible when the cap is removed. Replace a leaking or damaged radiator before overheating causes engine damage.

CSF specializes in high-performance aluminum radiators, intercoolers, and oil coolers for both OE replacement and performance applications. Known for precision manufacturing and superior cooling capacity, CSF products deliver reliable thermal management and extended engine life.

This part also fits:

• 2017 Honda Civic Si
• 2018 Honda Civic Si
• 2019 Honda Civic Si
• 2020 Honda Civic Si
• 2022 Honda Civic EX-L