Is your Toyota 4Runner's coolant overflow tank cracked, leaking, or looking discolored and old? This is a direct replacement coolant reservoir that comes with the cap included. It's designed to be an exact fit for 2010 through 2023 Toyota 4Runner models, replacing OEM part numbers 1647031050 and TO3014125. Made from high-quality plastics to handle engine heat and coolant chemicals without degrading. A proper, sealed coolant system is super important—it keeps your engine from overheating. A leaking or failed reservoir can cause coolant loss, air bubbles in the system, and eventually lead to big-time engine trouble. Installation is usually straightforward; it typically involves a couple of hose clamps and a mounting bolt. Always make sure your engine is cool before starting, and properly refill with the correct coolant mixture afterward. This is a brand new part, sealed in its box. Before ordering, double-check your vehicle's year and compare the part numbers to ensure a perfect match. Keep your 4Runner running cool on all those adventures.
