The CSF Racing 3945 is an OE-style direct-fit replacement radiator for the 2021-2025 Ford F-150 with the 3.5L EcoBoost and 3.5L PowerBoost hybrid, and the 2023-2025 F-150 Raptor R. 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
- Engines: 3.5L EcoBoost, 3.5L PowerBoost hybrid
- Also fits: 2023-2025 F-150 Raptor R
- Fitment: direct, factory location
- Part number: 3945
Vehicle Applications
Direct fit on the following:
- 2021 Ford F-150
- 2022 Ford F-150
- 2023 Ford F-150
- 2024 Ford F-150
- 2025 Ford F-150
- 2023 Ford F-150 Raptor R
- 2024 Ford F-150 Raptor R
- 2025 Ford F-150 Raptor R
FAQ
What vehicles does the CSF 3945 fit?
The 2021-2025 Ford F-150 with the 3.5L EcoBoost or PowerBoost hybrid, and the 2023-2025 Raptor R.
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.

