Brake Master Cylinder - Mini single line pre 1976

Replacement brake master cylinder for the pre '76 Mini drum brake single line system. This modern version is fitted with a plastic reservoir so the fluid level can be seen. The original tin reservoir master cylinder is still available as GMC171OE.

Mini Cooper S and 1275GT models with front disc brakes used a master cylinder with a larger reservoir, see GMC172OE.

Also available as a genuine product, see GMC171

If you are fitting a new brake master cylinder to your Mini you may also need,

• 31G279 - Single line master cylinder gasket
• 14A6733 - Master cylinder mounting plate
• MCR11.24.04.05 - Master cylinder mounting plate gasket
• CLZ512 - Clevis pin
• CAS1704 - Castrol React performance brake fluid

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