Koyo presents an outstanding aluminum radiator designed for multiple Subaru models. It fits Subaru STI from 2008 - 2021, Subaru WRX from 2008 - 2021 (Manual Transmission), Subaru Legacy GT from 2005 - 2012 (Manual Transmission), Subaru Impreza from 2008 - 2011 (Manual Transmission), Subaru Crosstrek from 2013 - 2017 (Manual Transmission), Subaru Forester XT from 2009 - 2013 (Manual Transmission), and Subaru Outback XT from 2005 - 2009 (Manual Transmission). This full - aluminum radiator has a core depth of 1.41 inches, a core height of 13.38 inches, and a core width of 26.65 inches, weighing 12.1 pounds. Note that the radiator cap is not included. Key features are its true plug - and - play installation, which means no engine modifications are needed and it keeps the mounts for stock fan shrouds and fans. The hand - crafted heliarc welds strengthen the aluminum connections. Precise tube and fin alignment ensures optimal coolant flow and efficient heat transfer. For proper clearance, the upper radiator hose may need trimming. We recommend the Koyo SK - C13 radiator cap, though the OE one will also fit. If you have an automatic transmission, this radiator doesn't have an internal transmission cooler, so you'll need an auxiliary transmission cooler.
Using this Koyo radiator is easy. First, make sure your car's engine is cool before starting the installation. Since it's a plug - and - play radiator, you can install it without modifying the engine. Just connect it to the existing mounts for the stock fan shrouds and fans. However, you might need to trim the upper radiator hose for proper clearance. If you're using an automatic transmission, remember to install an auxiliary transmission cooler as this radiator doesn't have an internal one. When it comes to maintenance, regularly check the coolant level to ensure it's at the right amount. You can also visually inspect the radiator for any signs of leaks or damage, especially around the hand - crafted heliarc welds. As for the radiator cap, although it's not included, using the recommended Koyo SK - C13 cap or an OE - compatible one will help maintain the proper pressure in the cooling system.
