Is your Toyota RAV4's coolant tank cracked, leaking, or looking old? This A-Premium expansion tank is a direct replacement for 2001-2005 RAV4 models. It comes with the reservoir, a flip-top cap, and connecting tubing—everything you need for a straightforward swap. Made from durable, heat-resistant plastic, it handles high temperatures and pressure without warping or cracking. The tank helps maintain proper coolant levels, prevents overheating, and keeps your engine running smoothly. Installation is simple (usually just a few bolts and hose clamps), and it fits exactly like the original (OEM numbers 603566 and 1647028050). Backed by a one-year warranty, you can install with confidence. Whether you're doing routine maintenance or fixing a leak, this tank is affordable, reliable, and built to last. Keep your cooling system in top shape and avoid bigger engine issues down the road. A must-have for DIY mechanics or anyone looking to save on repair costs. Order yours and drive with peace of mind!