Order Subaru Legacy Heat exchanger. Replace Subaru Legacy Radiator replacement. Get Subaru Legacy Radiator & Subaru Legacy Engine radiator. Maintaining your Subaru Legacy's radiator is crucial for engine longevity. Regularly check for leaks and corrosion, and ensure the coolant is flushed every 40,000 miles to prevent buildup. Signs like overheating and coolant discoloration signal it's time for a replacement. Opt for aluminum radiators for their durability and better cooling efficiency. When selecting a radiator, consider the core size for optimal heat dissipation and verify it matches your Legacy's specifications. Installation is straightforward, but always follow the manufacturer's guidelines to ensure proper fitment and function. By investing in a quality radiator and committing to maintenance, you'll enhance your Legacy's performance and extend its life.