TRW BMW Brake Master Cylinders for BMW 5 Series E60 (2004-2010)

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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 - E60, E61, E63, E64
TRW Brake Booster - E60, E61, E63, E64
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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T#:592494
Part#: 34336779742
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$ 327.99 USD
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Make sure you car stops on a dime by replacing a faulty or leaky brake booster
Brake Master Cylinder
Brake Master Cylinder
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
TRW - Corporate Logo
T#:593986
Part#: 34336786586
Ships in 2 Business Days
$ 271.99

This product was last offered at the strikethrough price on
04-20-2026

$ 246.99 USD
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$ 246.99 USD
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Replacement Brake Master Cylinder from TRW
Brake Booster - E60 5-Series - 04'/05'
Brake Booster - E60 5-Series - 04'/05'
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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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