Genuine AP Lockheed boxed - Made in UK - fitted from 1988 on, this master cylinder uses a built in servo.
This master cylinder was used right up to the last production twin point vehicles from Rover. Bore size is 20.6mm(.811").
See
GSM119 and
GSM120 for servo fitted to this.
GRK1032 and
GRK1039 are repair kits for cyinders fitted to original cars.
See
NAM8570 for seal to servo
Ensure the correct DOT4 or DOT5.1 brake fluid is used as these cylinders are not designed to use anything else such as Castrol SRF for racing or any mineral fluid. Now supplied with new style cap GRK6009.