Air-to-Water Intercooler

The Subaru INTER Cooler Complete, part number 21821AA100, is a genuine OEM replacement intercooler engineered to maintain the optimal operating temperature of your Subaru's engine. By effectively cooling the air charge before it enters the combustion chamber, this component is vital for preserving engine performance and preventing heat-related issues. This intercooler is designed as a direct replacement for a variety of Subaru vehicles. Its listed fitment includes the Subaru Ascent, Legacy, Outback, and WRX models, specifically those equipped with either the 2.4L H4 - Gas or 2.5L H4 - Gas engines. The part number 21821AA100 ensures a precise match for the original equipment specifications. It is important to note that while this intercooler is listed for many Subaru models and years, there are specific exclusions. For example, one listing explicitly states, "THIS DOES NOT FIT YOUR 2023" for a particular 2023 Subaru Outback Limited configuration, indicating that fitment should always be confirmed for your exact vehicle specifications.