CSF 10-19 Toyota 4Runner High Performance All-Aluminum Radiator

When you're pushing your 2010-2024 Toyota 4Runner hard, whether it's on the trail, towing a load, or just in demanding daily driving, keeping your engine cool is critical. This high-performance all-aluminum radiator from CSF is built to handle those extra demands, offering a significant upgrade over the stock unit. It's designed as a true drop-in fit, meaning you won't need to modify anything to get it installed.

CSF has over 50 years of experience making radiators, and this one shows it. It features a 2-row, 42mm core that uses their exclusive B-Tube Technology. Instead of a standard oval tube, these B-tubes are shaped and brazed to increase the heat transfer surface area by about 15%. This design allows for a dual liquid laminar flow and uses thinner, lighter aluminum while still being stronger than typical welded tubes. The core also incorporates ultra-efficient, multi-louvered fins that are precisely aligned to maximize airflow and heat rejection, as tested in CSF's wind tunnel lab. For automatic transmission models, an upgraded 4-plate transmission cooler is built right into the bottom tank for robust cooling.

You'll also find CNC-machined mounting brackets for a durable, precise fit, and the entire unit is TIG-welded aluminum construction. Each radiator is individually leak and pressure tested, and then hand-polished to a mirror finish. CSF backs this radiator with a 2-year limited warranty, giving you confidence in its performance and reliability for your 4Runner.