OE Number:16470-71030/16470-54120/1647071030/1647054120/16405-71010/1640571010/603424/603-424Fitment of Coolant Expansion Reservoir:for Toyota 4Runner 1984-1988for Toyota Pickup 1984-1988Specifications of Reservoir Tank:Material: PPColor: WhiteType: Coolant Recovery TankCap Type: Flip TopPackage: 1 x Radiator Coolant Expansion Tank with CapFeatures of Coolant Reservoir :Radiator Coolant Overflow Reservoir Tank made of plastic, it is not only resistant to high temperatures, but also has a strong sealing property, which can effectively remove stagnant air and steam from the engine, avoid coolant expansion and ruptured radiator tubes.The coolant recovery tank provides expansion space for the coolant, helping to reduce oil dilution, in-cylinder wear, and fuel consumption, improving the efficiency of the radiator and heating system.