The CSF Racing 3951 is an OE-style direct-fit replacement radiator for the 2022 and newer Honda Civic, the 2023 and newer Honda Accord, and the 2023 and newer Acura Integra with the 1.5L turbo engine. It uses an aluminum core with OE-style tanks and installs in the factory location with no modifications, as a direct replacement for the original radiator.
- Type: OE-style replacement radiator
- Construction: aluminum core, OE-style tanks
- Engine: 1.5L turbo
- Models: Honda Civic (2022+), Honda Accord (2023+), Acura Integra (2023+)
- Fitment: direct, factory location
- Part number: 3951
Vehicle Applications
Direct fit on the following (1.5L turbo):
- 2022 Honda Civic
- 2023 Honda Civic
- 2024 Honda Civic
- 2025 Honda Civic
- 2026 Honda Civic
- 2023 Honda Accord
- 2024 Honda Accord
- 2025 Honda Accord
- 2026 Honda Accord
- 2023 Acura Integra
- 2024 Acura Integra
- 2025 Acura Integra
- 2026 Acura Integra
FAQ
What vehicles does the CSF 3951 fit?
The 2022 and newer Honda Civic, 2023 and newer Honda Accord, and 2023 and newer Acura Integra with the 1.5L turbo.
Is this a performance or OE replacement radiator?
It is an OE-style direct-fit replacement with an aluminum core and OE-style tanks.
Does it require modifications?
No. It installs in the factory location as a direct replacement.

