BMW Brake Master Cylinders for BMW X Series E70 (2007-2013)

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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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Pierburg - Corporate Logo
T#:380390
Part#: 11667635657
In Stock at Vendor
$ 362.55

This product was last offered at the strikethrough price on
02-16-2026

$ 221.99 USD
Free Shipping
$ 221.99 USD
Free Shipping
Attaches to the front of the cylinder head assembly providing vacuum to the master cylinder
Pierburg - Corporate Logo
T#:591847
Part#: 11668605976
Ships in 1-2 days
$ 329.99 USD
Free Shipping
$ 329.99 USD
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Bolts to the timing case
Rein - Corporate Logo
T#:45997531
Part#: 11667635657
Ships in 4 Business Days
$ 225.99 USD
Free Shipping on orders $49 and up
If the brakes in your BMW have begun to feel a little soft or stopping doesn't seem like it used to, it may be your vacuum pump. The vacuum pump assists the power braking system in providing ample braking pressure.
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Pierburg - Corporate Logo
T#:594704
Part#: 11667619350
In Stock at Vendor
$ 406.99

This product was last offered at the strikethrough price on
05-04-2026

$ 394.99 USD
Free Shipping on orders $49 and up
$ 394.99 USD
Free Shipping on orders $49 and up
Replacement Vacuum Pump from Pierburg

Vacuum Pump With Gasket For Brake Booster
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:599681
Part#: 11667619350
Ships in 4 Business Days
$ 301.99 USD
Free Shipping
$ 301.99 USD
Free Shipping
Pierburg - Corporate Logo
T#:8076776
Part#: 11667791232
In Stock
$ 251.99 USD
Free Shipping on orders $49 and up
If your vacuum pump is noisy then it is only a matter of time before it fails. Replace your 335d vacuum pump with this Vaico part. Fits US BMWs with the M57 diesel engine and some Euro models with the M47 diesel engine.
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TRW - Corporate Logo
T#:23615509
Part#: 193321071856
Back Ordered
$ 392.99 USD
Free Shipping on orders $49 and up
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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