V-Twin Mfg. Replica Wagner Rear Drum Brake Master Cylinder For Harley This replica Wagner style rear master cylinder is designed for drum brakes, combining vintage appeal with modern functionality. It features a robust cast iron construction, finished in silver paint with a chrome top for a stylish look. Features: 3/4 bore Painted silver with a chrome top Wagner Lockheed replacement Compatible with DOT 5 fluid Needs inverted flair brake fitting and steel brake line Replaces OEM 41761-58