1 x 3120 & 3120A (nut). A new, single piston Brake Master Cylinder that we supply with correct adaptor nut (not supplied by cyl. manuf.). This adaptor allows the XK to use a remote fluid supply from an accessible reservoir, higher up in the engine bay. This cylinder was fitted to early XK120 brake systems, then in April 1952, Jaguar switched to a dual line, tandem brake cylinder (3620), which was troublesome. The XK140 models returned to this more reliable, system that simply divides line feed with a V-banjo. Many XK120 & C-Type builders revert to this cylinder as it is easier to set up. We supply quality brand reproduction part, which suits  Early XK120, Early C-Type &  ALL variants of XK140. Ref C3858. C8302

Cylinder Secures Through Tie Plate with Tapped Plate : 3119

Using 2 x Bolt : NB137/24


FITTING NOTE : Cast iron cylinders require a very slow bleeding procedure, so take your time and remember to LEAVE PISTON CLEARANCE, as per the  JAGUAR WORKSHOP MANUAL (Listed as 1/32" or 0.80mm) or brakes will sieze on when hot.

IMPORTANT : Manifold heat demands that the Left Hand Drive System requires Heatshield : 3124

For Single repair kit SEE : 3130

FOR TANDEM BRAKE MASTER CYLINDER SEE : 3620


3120. Jaguar XK120 (Early) & XK140 Single Brake Master Cylinder with ESSENTIAL ADAPTOR NUT. C3858. C8302

  • Product Code: 3120
  • Availability: In Stock
  • £147.00

  • + £9.95 UK Shipping charges:
  • Ex Tax: £122.50

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