Small Plastic Master Cylinder Cap for Classic Mini, Midget, Sprite, MGB (1963-79)

The 513123A Brake and Clutch Master Cylinder Cap is a genuine plastic replacement part, designed to fit single line brake cylinders of pre-1976 models and all clutch masters in vehicles like the Classic Mini, Midget, Sprite, and MGB from 1963 to 1979.

While not a part that breaks or wears out frequently, this cap can get lost or discolor to yellow over time. Its durable plastic composition makes it a convenient upgrade from the early steel master cylinder reservoir caps, which were prone to rusting.

This white plastic cap offers a modern solution without compromising on functionality. For those who wish to maintain a completely original look on Pre 1963 vehicles, a metal cap 17H3723 is available.

Whether you're completing a restoration project or simply replacing a lost or aged part, this master cylinder cap provides a straightforward, effective solution.