Master Cylinder

All Verto clutch slaves use this hollow bolt to attach the flex hose to the cylinder. Ref: C5192A, C5192, 11D5264.

Master cylinder base plate for 1989-on classic Minis with servo built into the brake master cylinder. Ref: CRC8664.

This repair kit will fit both the classic Mini .75'' bore clutch master cylinders and early .75'' brake master cylinders. Ref: GRK3004, 8G8430, BHM7127EVA, 52251.

Pair of flexible braided steel lines with fittings to replace the solid steel lines between the horizontal brake master cylinder and the junction. Ref: SEN45.

Most original brake masters using the early cup seal have by now been replaced with the ring seal design as found in this kit. Ref: GRK1006, BAU1247.

Brake master cylinder rebuild kit for the single-line brake master cylinder. Ref: GRK1028, 8G8689, 50957.

Rebuild kit for 0.75'' bore brake master cylinder. Ref: GRK1026, 50639, 8G8258, KL71535.

In 1989, a direct-acting servo with master cylinder was fitted to the classic Mini; kit repairs the cylinder only. Ref: GRK1032, LK11414, SSB1414, 55390.

Brake master cylinder repair kit for five different classic Mini master cylinders, as used from 1979 to May 1985

Repair kit for the GMC167 brake master cylinder, as used from 1975 to 1980. Ref: GRK1002, LK11237, SSB1237, HMK142.

Reproduction of the repair kit required by the earliest tandem master cylinders used on the classic Mini. Ref: GRK1019, 18G9063, LSSB927, LK10927.

OE version of the repair kit required by the earliest tandem master cylinders used on the classic Mini. Ref: GRK1019, GRK1019-OE, LSSB927.

This repair kit fits the stepped-bore GMC227 brake master cylinder that was original equipment on all classic Minis from May 1985-on. Ref: GRK1035, BAU5656EVA, LK11408, HMK143.

OE version of the most commonly-used master cylinder for single line (not tandem) systems, with .70'' bore size. Ref: GMC171, L4222-992, LM12997.

Original-style master cylinder for single line brake systems; metal ''bean can'' reservoir with plastic cap. Ref: GMC171, GMC171ORIGINAL, GMC171OE, GMC171-OE.

Correct replacement master cylinder for classic Minis with diagonal split dual braking system, as used from the end of 1975 through 1980. Ref: GMC167, 4222-171, GMC0167.

Horizontal-style hydraulic brake master cylinder that mounts to the servo-assist unit fitted from 1989-on; OEM version. Ref: GMC242, GMC90376, LM15324, MAP5324.

Restoration-quality classic Mini Cooper S brake master cylinder, with plated-finish metal tank. Ref: GMC172, GMC172OE/HTG, GMC172-OE.

Aftermarket version of the most commonly-used master cylinder for single line (not tandem) brake systems. Ref: GMC171, PMA710, GMC191.

Stepped-bore tandem brake master cylinder, replaces most rectangular reservoir master cylinders used from Sept. 1978 until the horizontal master was fitted in 1989. Ref: GMC227, GMC0227E.

Stepped-bore tandem brake master cylinder, replaces those used from Sep. 1978 (rectangular reservoir) until the combined servo-master was fitted in 1989. Ref: GMC227, LM15121.

Kit required for pre-1985 left-hand drive classic Minis when fitting a stepped-bore tandem master cylinder. Ref: BAU5655, LK17049, SSB77049.

Kit required for pre-1985 right-hand drive classic Minis when fitting a stepped-bore tandem master cylinder. Ref: BAU5654, LK17048.

Major repair kit includes the diaphragm and all rubber seals required to recondition the vacuum servo unit. Ref: GSM120, LK10125, SSB80125.

Large-diameter cap for early tandem brake master cylinders as fitted to Canadian (classic) Minis, Austin Americas, or classic Minis converted to dual-circuit systems. Ref: AAU3815, GMC159, GMC160.

Plastic cap fits all classic Mini clutch master cylinders and single-line brake master cylinder. Ref: 513123A, 17H6861, 513123.

Clevis pin to connect the master cylinder pushrod to the pedal; works for brake or clutch. Ref: CLZ512, CLZ0512.

Cap with integrated fluid level switch; replaces the earlier cap used on late brake master cylinders GMC227 and GMC242. Ref: GRK6009, CDU3161EVA.

Filler cap for dual brake master cylinder with rectangular tank, prior to addition of fluid level switch in the cap. Will also replace the cap with the fluid level warning switch. Ref: AAU8240, GRK907014, STW000010.

Foam rubber gasket used under the metal master cylinder/heater hose metal plate on top of the bulkhead. Ref: ALA6598, NAM9197.

Paper gasket under flange of master cylinder on the firewall shelf. Ref: 31G279, 31G0279.

A useful increase of the fluid volume can be obtained by fitting this extension to the neck of both clutch and single system metal brake or clutch master cylinders.

White nylon bush fitted to bellcrank (behind servo in engine bay) on late servo models, 1989-on. Ref: NAM8546.

Seal between the brake servo and master cylinder; fits all classic Minis with the power brake servo mounted directly to the master cylinder. Ref: NAM8570.

Thick paper gasket, sized to match the mounting flange of all dual-circuit master cylinders used on the classic Mini. Ref: 31G840, 31G0840.

Bracket on right-hand side of firewall shelf locates the upper engine stabilizer. Ref: 14A6733.

Upper bracket for engine stabilizer arm at the firewall. For classic Minis fitted with dual-line brake master cylinder. Ref: ALA6505.