An Expansion Tank Plug seals the opening of the expansion tank in cooling systems. When installed properly, the plug prevents coolant from leaking out and helps maintain the system's pressure. This ensures efficient cooling performance and prevents overheating of the engine by keeping the coolant at the correct level.Attributes:• Ensures a tight seal to prevent coolant leakage from the expansion tank.• Provide a secure and leak-proof seal.• Ensuring proper fitment.• Capable of withstanding the temperature variations.Applications: An Expansion Tank Plug maintains the integrity of the cooling system by preventing coolant leaks and ensuring proper pressure levels. These Expansion Tank Plugs ensure reliable operation of the engine and overall performance.