Aftermarket 3/4" rear brake cylinder, as used on all Mk2 Classic Minis and later models (except for a few that used the 1/2" GWC1126). If yours leak, the only sure repair is replacement. These are also the rear wheel cylinders used on Sprites and Midgets that came equipped with front disc brakes until 1974. Includes the retainer clip but it seams they no longer include the gasket - see part number 37H4642.

For OE version, see GWC1102.