BRAKES ; MASTER CYLINDER

MASTER CYLINDER ; DUAL LINE SYSTEM AS FITTED TO LATER ROBIN and RIALTO { with 17.8mm piston ? }

RELIANT PART NUMBER ; 28753

These are available from various outlets including ;

Reliant Partsworld ;

https://www.reliantpartsworld.co.uk/reliant-brake-master-cylinder-28753

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I need further info on the following before I can say for definite but

POSSIBLE ALTERNATE PART NUMBERS ;

DELPHI ; LM15012 with 17.8mm piston

FEDERAL ; CBM4082

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I received information that the Dual Line System Brake Master Cylinder used on 1977 to 1980 MGB and MGB GT TRW Automotive Part Number ; GMC164 or GMC164Z might fit later Robin and Rialto models .

Unfortunately the mounting bolt holes are East to West orientation whereas the Reliant version has the mounting holes North to South .

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Also further unconfirmed info ;

PART NUMBER ; BMC4324

BRAKE MASTER CYLINDER TANDEM

Bore Size 17.8 mm

Years: October 1978 to October 1981