Product Description: High-Quality Clutch Master Cylinder for Enhanced Vehicle Performance Upgrade your vehicle's transmission system with our premium Clutch Master Cylinder, designed for durability and precision. OE Number: This clutch master cylinder is precisely molded and designed to match original equipment specifications. The referencing OE numbers include 21526773670, 2106819, 21526879477, and 21521163899, ensuring a perfect fit and function as intended by the manufacturer. Fitment: Specifically engineered as a replacement for BMW 1, 2, 3, 4, 5 Series, as well as X1 E84, X3 E83, X5 E53, and Z4 E85 models. Please verify your vehicle model compatibility before ordering to guarantee optimal performance. Durable Construction: Constructed from high-quality, robust materials, this clutch master cylinder is designed to endure rigorous use. It provides a dependable, long-lasting addition to your vehicle's transmission system, ensuring sustained reliability. Improved Driving Experience: Replacing your old or damaged clutch master cylinder with this high-performance component can significantly enhance your vehicle's overall performance. Enjoy more precise control and a smoother driving experience, contributing to improved vehicle handling. Ideal Replacement: Designed for direct replacement, this clutch master cylinder meets or exceeds OEM standards. It offers a straightforward installation process, making it an ideal solution for replacing worn or damaged cylinders in your vehicle, ensuring smooth and efficient operation. Enhance your driving experience with our Clutch Master Cylinder, crafted to provide superior durability and performance. Ensure your vehicle operates at its best with this essential component, designed to offer precision and reliability for your transmission system.