The Tesla Model 3/Y Service Brake Reservoir Cap 1044677-00-A is a genuine OEM component designed to seal the brake fluid reservoir, maintaining proper hydraulic pressure and preventing contamination or leakage. Engineered for the Model 3 and Model Y brake systems, this cap features a secure fit and integrated pressure management, ensuring the reservoir remains properly sealed under varying conditions. Manufactured to Tesla’s exact specifications, it delivers durability, heat resistance, and long-term reliability, making it essential for safe and consistent brake system performance.