T: (800) 992-7007

P: (530) 886-0771

P: (530) 777-7759

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Keeping classic Minis on the road since 1974

(800) 992-7007 | (530) 886-0771

Brake master cylinders, parts, and accessories for the classic Mini, Mini Cooper, and variants.

Products 1-38 of 38
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Banjo Bolt, Hydraulic Systems (C5192)
Sale: $10.63
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2/3/2021 2:00:00 AM 11.95
In Stock
Item #: C5192 -
  • REDUCE02

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

Base Plate, Brake Master Cylinder, 1989-on
Price: $21.95
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6/30/2020 12:00:00 AM 24.9500
In Stock
Item #: CRC8664 -

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

    Master Cylinder Repair Kit, .75, ring seals (GRK3004)
    Sale: $9.31
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    In Stock
    Item #: GRK3004 -
    • REDUCE

    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.

    Brake Line Kit to Servo, 1989-on, Braided (SEN45)
    Price: $76.95
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    In Stock
    Item #: SEN45 -

      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.

      Brake Master Cylinder Rebuild Kit, .70 Ring Seal (GRK1006)
      Price: $13.50
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      In Stock
      Item #: GRK1006 -

        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, .70 Cup Seal (GRK1028)
        Price: $9.95
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        In Stock
        Item #: GRK1028 -

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

          Brake Master Cylinder Rebuild Kit, 0.75 Cup (GRK1026)
          Price: $10.95
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          In Stock
          Item #: GRK1026 -

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

            Brake Master Cylinder Rebuild Kit, 1989-on (GRK1032)
            Price: $19.95
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            In Stock
            Item #: GRK1032 -

              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 Rebuild Kit, Tandem, 1979-May 1985 (GRK1016)
              Sale: $55.21
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              In Stock
              Item #: GRK1016 -
              • REDUCE01

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

              Brake Master Cylinder Rebuild Kit, Tandem, Diagonal Split 1975-80 (GRK1002)
              Price: $69.95
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              In Stock
              Item #: GRK1002 -

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

                Brake Master Cylinder Rebuild Kit, Tandem, Early Round Reservoir (GRK1019)
                Price: $27.95
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                In Stock
                Item #: GRK1019 -

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

                  Brake Master Cylinder Rebuild Kit, Tandem, Early Round Reservoir, OE (GRK1019-OE)
                  Price: $39.95
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                  10/8/2019 2:00:00 AM 35.9500
                  In Stock
                  Item #: GRK1019-OE -

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

                    Brake Master Cylinder Rebuild Kit, Tandem, Stepped bore
                    Price: $46.95
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                    In Stock
                    Item #: GRK1035 -

                      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.

                      Brake Master Cylinder, 0.70 Bore, OE (GMC0171)
                      Price: $119.95
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                      12/13/2020 2:00:00 AM 89.9500
                      Out of Stock
                      Item #: GMC0171 -

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

                        Brake Master Cylinder, 0.70 Metal Tank (GMC171-OE)
                        Price: $159.95
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                        5/23/2019 2:00:00 AM 134.9500
                        In Stock
                        Item #: GMC171-OE -

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

                          Brake Master Cylinder, 1975-80, Diagonal System (GMC0167)
                          Price: $234.95
                          View
                          11/19/2020 2:00:00 AM 209.95
                          In Stock
                          Item #: GMC0167 -

                            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.

                            Brake Master Cylinder, 1989-on, Horizontal (GMC0242)
                            Price: $189.95
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                            5/23/2019 2:00:00 AM 144.9500
                            In Stock
                            Item #: GMC0242 -

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

                              Brake Master Cylinder, Cooper S (GMC172-OE)
                              Sale: $148.71
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                              4/13/2021 2:00:00 AM 149.9500
                              In Stock
                              Item #: GMC172-OE -
                              • REDUCE

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

                              Brake Master Cylinder, Single Line, TRW (GMC0171E)
                              Price: $114.95
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                              In Stock
                              Item #: GMC0171E -

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

                                Brake Master Cylinder, Tandem, 1977-89 (GMC0227E)
                                Price: $119.95
                                View
                                12/14/2020 2:00:00 AM 119.9500
                                11/23/2020 2:00:00 AM
                                In Stock
                                Item #: GMC0227E -

                                  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.

                                  Brake Master Cylinder, Tandem, 1977-1989, OE (GMC0227)
                                  Price: $179.95
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                                  In Stock
                                  Item #: GMC0227 -

                                    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.

                                    Brake Pipe Conversion Kit, GMC0227, Left Hand Drive
                                    Price: $33.95
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                                    In Stock
                                    Item #: BAU5655 -

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

                                      Brake Pipe Conversion Kit, GMC0227, Right Hand Drive
                                      Price: $29.95
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                                      2/10/2022 12:00:00 AM 32.9500
                                      In Stock
                                      Item #: BAU5654 -

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

                                        Brake Servo Repair Kit, 1989-on (GSM0120)
                                        Price: $189.95
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                                        In Stock
                                        Item #: GSM0120 -

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

                                          Cap, early tandem brake master cylinder (AAU3815)
                                          Price: $16.95
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                                          In Stock
                                          Item #: AAU3815 -

                                            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.

                                            Cap, Master Cylinder, Single Line (513123)
                                            Price: $6.95
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                                            In Stock
                                            Item #: 513123 -

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

                                              Clevis Pin, Master Cylinder to Brake or Clutch Pedal (CLZ0512)
                                              Price: $2.00
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                                              In Stock
                                              Item #: CLZ0512 -

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

                                                Filler Cap, Late Master Cylinder, with Fluid Switch (GRK6009)
                                                Price: $27.50
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                                                In Stock
                                                Item #: GRK6009 -

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

                                                   Filler Cap, Tandem Master
                                                  Price: $16.50
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                                                  In Stock
                                                  Item #: AAU8240 -

                                                    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.

                                                    Gasket, Master Cylinder Plate
                                                    Price: $5.50
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                                                    Out of Stock
                                                    Item #: 11.24.05.05 -

                                                      Rubber gasket for use under the metal master cylinder/heater hose metal plate on top of the bulkhead. The holes are slightly smaller that the heater hoses and the bolts, ensuring a water-tight seal

                                                      Gasket, Master Cylinder Plate (NAM9197)
                                                      Price: $6.95
                                                      View
                                                      In Stock
                                                      Item #: NAM9197 -

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

                                                        Gasket, Master Cylinder Seating (31G0279)
                                                        Price: $2.95
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                                                        In Stock
                                                        Item #: 31G0279 -

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

                                                          Master Cylinder Extension, Single System
                                                          Price: $16.95
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                                                          In Stock
                                                          Item #: BHA4661 -

                                                            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.

                                                            O-ring, Master Cylinder Neck Extension (BCA4964)
                                                            Price: $1.95
                                                            View
                                                            In Stock
                                                            Item #: BCA4964 -

                                                              O-ring used to seal BHA4661 plastic master cylinder extension neck.

                                                              Seal, Master Cylinder to Servo, 1988-on (NAM8570)
                                                              Price: $3.25
                                                              View
                                                              In Stock
                                                              Item #: NAM8570 -

                                                                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.

                                                                Seating Gasket, Tandem Master (31G0840)
                                                                Price: $2.95
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                                                                In Stock
                                                                Item #: 31G0840 -

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

                                                                  Upper Stabilizer Bracket, Bulkhead (14A6733)
                                                                  Price: $23.95
                                                                  View
                                                                  10/14/2019 2:00:00 AM 23.9500
                                                                  In Stock
                                                                  Item #: 14A6733 -

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

                                                                    Upper Stabilizer Bracket, Bulkhead, 1976-on (ALA6505)
                                                                    Price: $23.95
                                                                    View
                                                                    10/15/2019 12:00:00 AM 24.9500
                                                                    In Stock
                                                                    Item #: ALA6505 -

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