If you're looking for a solid replacement for your Toyota 4Runner's radiator, the CSF Engine Coolant Radiator is worth checking out. This isn't just any radiator; it's designed with OE style in mind, which means it fits right in without any fuss. Trust me, keeping your engine cool is critical for your ride's longevity, and this radiator does just that. It’s all about maintaining that heart of your vehicle, ensuring it runs smoothly for years to come.

Now, let’s talk specs. This is a downflow radiator with a single row design, which keeps things simple yet effective. The core measures a solid 22 5/8” in length and 25 1/4” in width, with a thickness of 15/16”. Made from aluminum, the core is lightweight yet durable, while the tanks are crafted from high-quality plastic that’s engineered for strength. The inlet and outlet are conveniently located on the lower sides, both with a diameter of 1 3/8”. Plus, it features a high-efficiency oil cooler measuring 14 3/4”.

What sets this radiator apart is its construction. The tanks are made from virgin grade engineered plastic resins that are glass-filled for extra durability. And those gaskets? They’re made from special EPDM rubber that can handle extreme temperatures—up to a staggering -120°F. The fins, which are the heart of the radiator, boast a high-performance multi-louvered design that really ups the cooling game.

Before leaving the factory, each radiator is 100% leak tested at 150% of operating pressure, so you know you’re getting something reliable. CSF also takes packaging seriously, adhering to a "10 Foot Drop Test" standard, which just shows how much they care about getting their product to you in one piece. Every radiator is assembled with care, with all components torqued and tested during the build process.

CSF has been in the game for over 50 years, providing radiators for more than 3,200 applications across brands from Acura to Volkswagen. Whether you're dealing with copper-brass or all-aluminum radiators, CSF has got a fit for you. They’re known for their top-notch aftermarket replacements that meet high-performance standards, and they’ve sold over 30 million units worldwide. Each radiator is carefully engineered and even wind tunnel tested to ensure optimal cooling performance.

For those of you with a Toyota 4Runner from 1996 to 2002, this radiator is a perfect match. Just a quick tip: when you’re swapping out the radiator, don’t forget to check your old pressure cap for any signs of wear. You’ll want to use a mini 13 psi cap for the best results.

In short, if you’re serious about keeping your engine cool and running strong, the CSF radiator is a great investment. It’s built to last and designed to perform, making it a reliable choice for your 4Runner.