Features: 1.Function: Effectively withstands overheating and vibration, also helps reduce oil dilution, fuel consumption, exhaust emissions, and improves heating system efficiency. 2.Excellent Performance: Professional manufacturing, exquisite workmanship, high accuracy, stable performance and high reliability. 3.Material: The radiator expansion tank is made of aluminium alloy material, which is high temperature resistant, wear proof and durable. 4.Leakproofness: Coolant water tank has perfect sealing, keeping a good closed environment and preventing coolant leakage. 5.Ideal Replacement: According to the original car size design, perfect replacement of the old or damaged original one, no need to modify, easy and fast installation. Specification: Item Type: Engine Coolant Expansion Tank_x000D_ Capacity: 1L_x000D_ Material: Aluminium Alloy_x000D_ Inner diameter: 36mm / 1.42in_x000D_ Wall thickness: 3mm / 0.12in_x000D_ _x000D_ Fitment: Suitable to most Vehicles