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BMW Brake Master Cylinders

The brake master cylinder is responsible for distributing fluid from the reservoir to the front and rear brake systems. The fluid reservoir actually sits on top of the master cylinder with hard metal brake lines running out of it. There are a few places where the master cylinder can leak and cause a spongy or soft brake pedal. The inside has several pistons with o-rings and seals that can fail and allow brake fluid to escape. Likewise, the external metal lines also have o-rings where fluid can seep out or let air/moisture in.

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Genuine MINI Brake Fluid Expansion Tank W/ Warning Switch
Genuine MINI Brake Fluid Expansion Tank W/ Warning Switch
Genuine MINI - Corporate Logo
T#:63431
Part#: 34336756235
Ships on Apr 2, 2027
3% off MSRP $ 141.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 137.99 USD
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3% off MSRP
$ 141.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 137.99 USD
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Genuine MINI EXPANSION TANK WITH WARNING
Genuine MINI Master Cylinder Reservoir Cap
Genuine MINI Master Cylinder Reservoir Cap
Genuine MINI - Corporate Logo
T#:418833
Part#: 34336770607
Ships in 1-2 days
6% off MSRP $ 30.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 28.99 USD
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6% off MSRP
$ 30.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 28.99 USD
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Genuine MINI Vacuum Pipe - R55 R56 R57 R58 R59
Genuine MINI Vacuum Pipe - R55 R56 R57 R58 R59
Genuine MINI - Corporate Logo
T#:63414
Part#: 34332753124
Ships in 1-2 days
12% off MSRP $ 40.61

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 35.61 USD
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12% off MSRP
$ 40.61

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 35.61 USD
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Genuine MINI VACUUM PIPE
Genuine Mini R56 Brake Master Cylinder
Genuine Mini R56 Brake Master Cylinder
Genuine MINI - Corporate Logo
T#:186272
Part#: 34336857907
Special Order: No Guaranteed ETA
8% off MSRP $ 495.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 456.99 USD
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8% off MSRP
$ 495.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 456.99 USD
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Genuine Mini Brake Master Cylinder

Upgrade your Mini's braking system with the Genuine Mini R56 Brake Master Cylinder. This OEM part ensures reliable performance and precise braking control for Mini R56 models. Engineered to Mini's exact specifications, it provides seamless integration and enhanced safety on the road. With durable construction and efficient hydraulic operation, this brake master cylinder maintains optimal braking efficiency, ensuring a smooth and responsive braking experience.

  • Genuine OEM part for reliability
  • Ensures precise braking control
  • Seamless integration with Mini R56 models
  • Durable construction for long-lasting performance
  • Enhances safety and braking efficiency

Upgrade your Mini with the Genuine Mini Brake Master Cylinder for improved braking performance.

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TRW Brake Booster - F25/F26 X3/X4
TRW Brake Booster - F25/F26 X3/X4
TRW - Corporate Logo
T#:23615512
Part#: 193321071931
Back Ordered
$ 330.99 USD
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$ 330.99 USD
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The brake booster in a car is essential for improving the efficiency of the braking system by amplifying the force exerted on the brake pedal. As time passes, the brake booster may undergo wear and tear, resulting in problems like reduced braking power, a soft or spongy brake pedal sensation, and potential brake fluid leaks. These issues pose a threat to the overall safety and performance of the vehicle. Consequently, replacing a worn or malfunctioning brake booster is crucial to maintaining optimal braking performance and ensuring the safety of the vehicle.
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Brake Booster - F10 5-Series
Brake Booster - F10 5-Series
TRW - Corporate Logo
T#:25142295
Part#: 34336792956
Back Ordered
$ 296.99 USD
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$ 296.99 USD
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The brake booster in a car is essential for improving the efficiency of the braking system by amplifying the force exerted on the brake pedal. As time passes, the brake booster may undergo wear and tear, resulting in problems like reduced braking power, a soft or spongy brake pedal sensation, and potential brake fluid leaks. These issues pose a threat to the overall safety and performance of the vehicle. Consequently, replacing a worn or malfunctioning brake booster is crucial to maintaining optimal braking performance and ensuring the safety of the vehicle.
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TRW Brake Booster - E90/E82/E84 - 1 Series/ 3 Series/ X1 - 28i
TRW Brake Booster - E90/E82/E84 - 1 Series/ 3 Series/ X1 - 28i ...
TRW - Corporate Logo
T#:23615517
Part#: 193321071832
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$ 327.99 USD
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$ 327.99 USD
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The brake booster in a car is essential for improving the efficiency of the braking system by amplifying the force exerted on the brake pedal. As time passes, the brake booster may undergo wear and tear, resulting in problems like reduced braking power, a soft or spongy brake pedal sensation, and potential brake fluid leaks. These issues pose a threat to the overall safety and performance of the vehicle. Consequently, replacing a worn or malfunctioning brake booster is crucial to maintaining optimal braking performance and ensuring the safety of the vehicle.
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Brake Master Cylinder
Brake Master Cylinder
TRW - Corporate Logo
T#:593987
Part#: 53706041381
Ships in 2 Business Days
$ 301.55 USD
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$ 301.55 USD
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Replacement Brake Master Cylinder from TRW
TRW Brake Booster - E82/E84/E90 - 1-Series/ X1/ 3-Series
TRW Brake Booster - E82/E84/E90 - 1-Series/ X1/ 3-Series
TRW - Corporate Logo
T#:23615518
Part#: 193321071863
Ships in 3 Business Days
$ 324.99 USD
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$ 324.99 USD
Free Shipping on orders $49 and up
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The brake booster in a car is essential for improving the efficiency of the braking system by amplifying the force exerted on the brake pedal. As time passes, the brake booster may undergo wear and tear, resulting in problems like reduced braking power, a soft or spongy brake pedal sensation, and potential brake fluid leaks. These issues pose a threat to the overall safety and performance of the vehicle. Consequently, replacing a worn or malfunctioning brake booster is crucial to maintaining optimal braking performance and ensuring the safety of the vehicle.
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TRW Brake Booster - F25 X3
TRW Brake Booster - F25 X3
TRW - Corporate Logo
T#:23615510
Part#: 193321071917
Back Ordered
$ 205.99 USD
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$ 205.99 USD
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The brake booster in a car is essential for improving the efficiency of the braking system by amplifying the force exerted on the brake pedal. As time passes, the brake booster may undergo wear and tear, resulting in problems like reduced braking power, a soft or spongy brake pedal sensation, and potential brake fluid leaks. These issues pose a threat to the overall safety and performance of the vehicle. Consequently, replacing a worn or malfunctioning brake booster is crucial to maintaining optimal braking performance and ensuring the safety of the vehicle.
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Brake Booster - F10 M5/ F13 M6
Brake Booster - F10 M5/ F13 M6
TRW - Corporate Logo
T#:23615508
Part#: 193321071955
Ships in 3 Business Days
$ 517.99 USD
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$ 517.99 USD
Free Shipping on orders $49 and up
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The brake booster in a car is essential for improving the efficiency of the braking system by amplifying the force exerted on the brake pedal. As time passes, the brake booster may undergo wear and tear, resulting in problems like reduced braking power, a soft or spongy brake pedal sensation, and potential brake fluid leaks. These issues pose a threat to the overall safety and performance of the vehicle. Consequently, replacing a worn or malfunctioning brake booster is crucial to maintaining optimal braking performance and ensuring the safety of the vehicle.
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TRW Brake Booster - E83 X3 LCI
TRW Brake Booster - E83 X3 LCI
TRW - Corporate Logo
T#:23615511
Part#: 193321071825
Back Ordered
$ 372.99 USD
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$ 372.99 USD
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The brake booster in a car is essential for improving the efficiency of the braking system by amplifying the force exerted on the brake pedal. As time passes, the brake booster may undergo wear and tear, resulting in problems like reduced braking power, a soft or spongy brake pedal sensation, and potential brake fluid leaks. These issues pose a threat to the overall safety and performance of the vehicle. Consequently, replacing a worn or malfunctioning brake booster is crucial to maintaining optimal braking performance and ensuring the safety of the vehicle.
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Brake Booster - F10 M5/ F12 M6
Brake Booster - F10 M5/ F12 M6
TRW - Corporate Logo
T#:25042538
Part#: 193321071962
Ships in 3 Business Days
$ 348.99 USD
Free Shipping on orders $49 and up
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$ 348.99 USD
Free Shipping on orders $49 and up
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The brake booster in a car is essential for improving the efficiency of the braking system by amplifying the force exerted on the brake pedal. As time passes, the brake booster may undergo wear and tear, resulting in problems like reduced braking power, a soft or spongy brake pedal sensation, and potential brake fluid leaks. These issues pose a threat to the overall safety and performance of the vehicle. Consequently, replacing a worn or malfunctioning brake booster is crucial to maintaining optimal braking performance and ensuring the safety of the vehicle.
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TRW Brake Booster - Z3 E36
TRW Brake Booster - Z3 E36
TRW - Corporate Logo
T#:23615507
Part#: 193321071788
Ships in 3 Business Days
$ 542.99 USD
Free Shipping on orders $49 and up
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$ 542.99 USD
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The brake booster in a car is essential for improving the efficiency of the braking system by amplifying the force exerted on the brake pedal. As time passes, the brake booster may undergo wear and tear, resulting in problems like reduced braking power, a soft or spongy brake pedal sensation, and potential brake fluid leaks. These issues pose a threat to the overall safety and performance of the vehicle. Consequently, replacing a worn or malfunctioning brake booster is crucial to maintaining optimal braking performance and ensuring the safety of the vehicle.
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TRW Power Brake Booster - E83 X3
TRW Power Brake Booster - E83 X3
TRW - Corporate Logo
T#:16873825
Part#: 34333450589
Ships in 2 Business Days
$ 528.99

This product was last offered at the strikethrough price on
05-08-2026

$ 513.99 USD
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$ 513.99 USD
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When a brake booster is failing you may see braking effort increases. The engine runs poorly or stalls with force on the brake pedal. If the brake booster is in fact faulty it is highly recommended to replace it as soon as possible.
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Brake Booster - E46 3-Series
Brake Booster - E46 3-Series
TRW - Corporate Logo
T#:25142292
Part#: 34336779682
Back Ordered
$ 292.99 USD
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$ 292.99 USD
Free Shipping on orders $49 and up
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The brake booster in a car is essential for improving the efficiency of the braking system by amplifying the force exerted on the brake pedal. As time passes, the brake booster may undergo wear and tear, resulting in problems like reduced braking power, a soft or spongy brake pedal sensation, and potential brake fluid leaks. These issues pose a threat to the overall safety and performance of the vehicle. Consequently, replacing a worn or malfunctioning brake booster is crucial to maintaining optimal braking performance and ensuring the safety of the vehicle.
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Brake Booster - E70/E71 X5/X6
Brake Booster - E70/E71 X5/X6
TRW - Corporate Logo
T#:23615509
Part#: 193321071856
Back Ordered
$ 392.99 USD
Free Shipping on orders $49 and up
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$ 392.99 USD
Free Shipping on orders $49 and up
Add to Wish List
The brake booster in a car is essential for improving the efficiency of the braking system by amplifying the force exerted on the brake pedal. As time passes, the brake booster may undergo wear and tear, resulting in problems like reduced braking power, a soft or spongy brake pedal sensation, and potential brake fluid leaks. These issues pose a threat to the overall safety and performance of the vehicle. Consequently, replacing a worn or malfunctioning brake booster is crucial to maintaining optimal braking performance and ensuring the safety of the vehicle.
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Brake Booster - E60 5-Series - 04'/05'
Brake Booster - E60 5-Series - 04'/05'
TRW - Corporate Logo
T#:25142289
Part#: 193321071849
Back Ordered
$ 377.99 USD
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$ 377.99 USD
Free Shipping on orders $49 and up
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The brake booster in a car is essential for improving the efficiency of the braking system by amplifying the force exerted on the brake pedal. As time passes, the brake booster may undergo wear and tear, resulting in problems like reduced braking power, a soft or spongy brake pedal sensation, and potential brake fluid leaks. These issues pose a threat to the overall safety and performance of the vehicle. Consequently, replacing a worn or malfunctioning brake booster is crucial to maintaining optimal braking performance and ensuring the safety of the vehicle.
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Brake Booster - E36 3-series
Brake Booster - E36 3-series
TRW - Corporate Logo
T#:25142287
Part#: 193321071672
Back Ordered
$ 193.99 USD
Free Shipping on orders $49 and up
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$ 193.99 USD
Free Shipping on orders $49 and up
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The brake booster in a car is essential for improving the efficiency of the braking system by amplifying the force exerted on the brake pedal. As time passes, the brake booster may undergo wear and tear, resulting in problems like reduced braking power, a soft or spongy brake pedal sensation, and potential brake fluid leaks. These issues pose a threat to the overall safety and performance of the vehicle. Consequently, replacing a worn or malfunctioning brake booster is crucial to maintaining optimal braking performance and ensuring the safety of the vehicle.
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TRW Brake Booster - E53 X5
TRW Brake Booster - E53 X5
TRW - Corporate Logo
T#:23615513
Part#: 193321071764
Back Ordered
$ 263.99 USD
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$ 263.99 USD
Free Shipping on orders $49 and up
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The brake booster in a car is essential for improving the efficiency of the braking system by amplifying the force exerted on the brake pedal. As time passes, the brake booster may undergo wear and tear, resulting in problems like reduced braking power, a soft or spongy brake pedal sensation, and potential brake fluid leaks. These issues pose a threat to the overall safety and performance of the vehicle. Consequently, replacing a worn or malfunctioning brake booster is crucial to maintaining optimal braking performance and ensuring the safety of the vehicle.
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