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TRW 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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TRW Brake Booster - F25/F26 X3/X4
TRW Brake Booster - F25/F26 X3/X4
TRW - Corporate Logo
T#:23615512
Part#: 193321071931
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$ 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
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$ 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 1 Business Day
$ 301.55 USD
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$ 301.55 USD
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Replacement Brake Master Cylinder from TRW
TRW Brake Booster - F25 X3
TRW Brake Booster - F25 X3
TRW - Corporate Logo
T#:23615510
Part#: 193321071917
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$ 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/ F12 M6
Brake Booster - F10 M5/ F12 M6
TRW - Corporate Logo
T#:25042538
Part#: 193321071962
Ships in 2 Business Days
$ 348.99 USD
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$ 348.99 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 - 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 2 Business Days
$ 324.99 USD
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$ 324.99 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 1 Business Day
$ 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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TRW Brake Booster - Z3 E36
TRW Brake Booster - Z3 E36
TRW - Corporate Logo
T#:23615507
Part#: 193321071788
Ships in 2 Business Days
$ 542.99 USD
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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 Brake Booster - E83 X3 LCI
TRW Brake Booster - E83 X3 LCI
TRW - Corporate Logo
T#:23615511
Part#: 193321071825
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$ 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/ F13 M6
Brake Booster - F10 M5/ F13 M6
TRW - Corporate Logo
T#:23615508
Part#: 193321071955
Ships in 2 Business Days
$ 517.99 USD
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$ 517.99 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 - E46 3-Series
Brake Booster - E46 3-Series
TRW - Corporate Logo
T#:25142292
Part#: 34336779682
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$ 292.99 USD
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$ 292.99 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 - E70/E71 X5/X6
Brake Booster - E70/E71 X5/X6
TRW - Corporate Logo
T#:23615509
Part#: 193321071856
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$ 392.99 USD
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$ 392.99 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 - E36 3-series
Brake Booster - E36 3-series
TRW - Corporate Logo
T#:25142287
Part#: 193321071672
Back Ordered
$ 193.99 USD
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$ 193.99 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 - E60 5-Series - 04'/05'
Brake Booster - E60 5-Series - 04'/05'
TRW - Corporate Logo
T#:25142289
Part#: 193321071849
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$ 377.99 USD
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$ 377.99 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 - 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
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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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