CSF 15-19 Subaru Legacy and Outback 2.5L High-Performance All-Aluminum Radiator

This is CSF's High-Performance All-Aluminum Radiator, built specifically for your 2015-2019 Subaru Legacy or Outback with the 2.5L naturally aspirated engine. If you're using your Subaru for off-roading or overlanding, you know how much strain that can put on the engine, especially on steep inclines or when carrying extra gear. The factory radiator can sometimes struggle to keep up with the higher operating temperatures that come with these activities. This CSF radiator is designed to give you that extra cooling capacity you need to keep your engine running strong.

What you're getting here is a well-built, all-aluminum unit featuring a 42mm, 2-row core that increases fluid capacity and heat dissipation. CSF uses their exclusive B-Tube technology, which they say improves heat transfer by about 15% over standard oval tubes. The fins are multi-louvered and super-efficient, designed to maximize airflow even at lower speeds where you rely more on your fans. The end tanks are made from high-grade aluminum and are TIG welded to the core for extra strength, a significant improvement over the weaker, crimped plastic end tanks found on the OEM radiator. This design helps prevent failure points and ensures a solid connection.

One of the best parts about this radiator is that it's a true plug-and-play, drop-in fit. You won't need to do any modifications, trimming, or cutting to get it installed. It comes with CNC machined mounting brackets and OEM-style inlet/outlet connections, making installation straightforward. This radiator is individually leak and pressure tested, and it comes with a 2-year limited warranty for peace of mind.