This is a genuine TOYOTA radiator cap, part number 90015-AH005 (superseding 90015AH004). Engineered to meet the exact specifications of your TOYOTA vehicle, this cap plays a crucial role in maintaining the correct pressure within your cooling system. Proper radiator cap function is essential for preventing overheating. It allows the coolant to boil at a higher temperature under pressure, increasing the efficiency of your radiator. A faulty cap can lead to coolant loss, engine damage, and reduced performance. Ensure your TOYOTA's cooling system operates at peak efficiency with this direct replacement part. It is designed for a precise fit and reliable sealing, providing peace of mind for everyday driving and demanding conditions.
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