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GMC171OE

GMC171OE Original AP Lockheed Metal Body Brake Master Cylinder for Classic Mini

In stock
Special Price £129.05 £107.54 Regular Price £139.40
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Restore your Classic Mini's braking system with the GMC171 AP Lockheed Metal Body Brake Master Cylinder, featuring a 0.70" bore size and a modern silver finish.
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GMC171OE Mini Brake Master Cylinder with Metal Body

Details

The GMC171 Brake Master Cylinder is an authentic AP Lockheed type with a durable metal body, designed to bring your Classic Mini's braking system back to its original performance.

This master cylinder comes fitted with a plastic cap, and an alternative metal original cap is available separately as 513123A. It's essential to use the correct DOT4 or DOT5.1 brake fluid with these cylinders, as they are not compatible with other types such as Castrol SRF for racing or any silicone fluid.

In line with the 'End of life vehicles 2003' regulations, AP has transitioned the cylinder color from golden to a glossy silver to be free from Hexavalent.

With a 0.70" bore size, these cylinders were remanufactured again from October 2003, replacing the original drab silver/light grey color.

They serve as a replacement for the later plastic reservoir type, ensuring your Mini retains its classic look while meeting modern safety and environmental standards.

Genuine AP brake master cylinder for the pre '76 Mini drum brake single line system. This original version is fitted with a tin reservoir and is perfect for retaining the original under bonnet look. A modern version of this master cylinder, with a plastic reservoir to allow the fluid level to be seen, is also available as GMC171.

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

Although very similar in appearance to the clutch master cylinder (AAU4969) the brake cylinder can be identified by its larger mounting flange.

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

Buy top quality Classic Mini brake spares and parts from Mini Sport, the worlds premier online Mini store!

Find all related parts with our Easy Parts Finder

 
No.
Description
Notes
Part No.
1
Yellow tag, '85 on (front/rear split) pre servo
 
GMC227
1
Master Cylinder - Green tag, with servo
- '89 on
GMC90376
1
Conversion Kit - to fit a GMC227 master cylinder to all pre
 
BAU5654
 
85 Mini with front rear split brake system. Original master cylinders are no longer available - GMC159 & GMC160
NLA
BAU5654LHD
2
Cap includes Switch for GMC227 / GMC90376
 
GRK6009
3
Repair kit
GMC167
GRK1002
3
Repair kit
GMC195
GRK1016
3
Repair kit
GMC159/160
GRK1019
3
Seal repair kit
GMC227
GRK1035
3
Seal repair kit
GMC90388
GRK1032
 
Master Cylinder - Square reservoir for split diagonal
 
GMC167
4
Master cylinder gaskets (dual line)
 
31G840
4
Master cylinder gaskets (single line)
 
31G279
5
Nut - cylinder to bracket
 
GHF201
6
Spring Washer - cylinder to bracket
 
GFK1125
7
Limiter valve, bulkhead fitment
'78 on
FAM7821
8
Washer-spring-bolt
 
GFK1124
9
Bolt-valve to dash member
 
BT604161
 
Master Cylinder - Standard, plastic tank type
- pre '76
GMC171
10
Master Cylinder - tin tank type
Cooper S/GT
GMC172OE
10
Master Cylinder - Standard, Tin tank type
- pre '76
GMC171OE
11
Repair kit (2 x ring seals)
GMC171/172
BAU1247
11
Repair kit (1 x ring, 1 x cup seal)
early GMC171/172
GRK1028
12
Brake & Clutch Master Cylinder Cap for GMC171/172
 
513123A
13
Reservoir extension - white plastic (tin tank only)
 
BHA4661
14
Clevis Pin - master cylinder to pedal
 
CLZ512
Frequently Bought Together

Sizing Charts

Women

Size XS S S M M L
EU 32 34 36 38 40 42
UK 4 6 8 10 12 14
US 0 2 4 6 8 10
Bust 79.5cm / 31" 82cm / 32" 84.5cm / 33" 89.5cm / 35" 94.5cm / 37" 99.5cm / 39"
Waist 61.5cm / 24" 64cm / 25" 66.5cm / 26" 71.5cm / 28" 76.5cm / 30" 81.5cm / 32"
Hip 86.5cm / 34" 89cm / 35" 91.5cm / 36" 96.5cm / 38" 101.5cm / 40" 106.5cm / 42"

Men

Size XS S M L XL XXL
UK/US 34 36 38 40 42 44
Neck 37cm / 14.5" 38cm /15" 39.5cm / 15.5" 41cm / 16" 42cm / 16.5" 43cm / 17"
Chest 86.5cm / 34" 91.5cm / 36" 96.5cm / 38" 101.5cm / 40" 106.5cm / 42" 111.5cm / 44"
Waist 71.5cm / 28" 76.5cm / 30" 81.5cm / 32" 86.5cm / 34" 91.5cm / 36" 96.5cm / 38"
Seat 90cm / 35.4" 95cm / 37.4" 100cm / 39.4" 105cm / 41.3" 110cm / 43.3" 115cm / 45.3"