The CSF 7042O is an all-aluminum high-performance radiator with a built-in oil cooler for the 2008-2021 Subaru WRX and STI. It covers the 2008-2014 GR/GV cars and the 2015-2021 VA cars, using a 2-row 42mm dual core with CSF's B-Tube Technology and multi-louvered 6.5mm fins. The 2015-2021 VA WRX with the 2.0L engine requires capping the turbo return pipe. It is a drop-in fit with CNC-machined quick-connect connections that accept the OEM hoses, an all-aluminum race-style drain plug, and a hand-polished mirror finish.
- Type: all-aluminum performance radiator with built-in oil cooler (turbo)
- Core: 2-row, 42mm dual core, B-Tube Technology
- Fins: multi-louvered, 6.5mm fin height
- Fittings: CNC-machined quick-connect, accepts OEM hoses
- Finish: hand-polished mirror finish
- Note: 2015-2021 VA WRX 2.0L requires turbo return pipe capping
- Part number: 7042O
Vehicle Applications
Direct fit on the following (turbo):
- 2008 Subaru WRX
- 2009 Subaru WRX
- 2010 Subaru WRX
- 2011 Subaru WRX
- 2012 Subaru WRX
- 2013 Subaru WRX
- 2014 Subaru WRX
- 2015 Subaru WRX
- 2016 Subaru WRX
- 2017 Subaru WRX
- 2018 Subaru WRX
- 2019 Subaru WRX
- 2020 Subaru WRX
- 2021 Subaru WRX
- 2008 Subaru WRX STI
- 2009 Subaru WRX STI
- 2010 Subaru WRX STI
- 2011 Subaru WRX STI
- 2012 Subaru WRX STI
- 2013 Subaru WRX STI
- 2014 Subaru WRX STI
- 2015 Subaru WRX STI
- 2016 Subaru WRX STI
- 2017 Subaru WRX STI
- 2018 Subaru WRX STI
- 2019 Subaru WRX STI
- 2020 Subaru WRX STI
- 2021 Subaru WRX STI
FAQ
What vehicles does the CSF 7042O fit?
The 2008-2021 Subaru WRX and STI, covering the 2008-2014 GR/GV and 2015-2021 VA cars.
Does it have a built-in oil cooler?
Yes. The oil cooler is integrated into the radiator.
Anything to know about the 2015-2021 WRX?
The 2015-2021 VA WRX with the 2.0L engine requires capping the turbo return pipe.
How many rows is the core?
A 2-row 42mm dual core with CSF's B-Tube Technology.

