Pierburg BMW Brake Master Cylinders for BMW X Series E71 (2008-2014)

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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#:591847
Part#: 11668605976
In Stock
$ 337.99 USD
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$ 337.99 USD
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Bolts to the timing case
Pierburg - Corporate Logo
T#:591846
Part#: 11667519458
Special Order: No Guaranteed ETA
$ 285.99 USD
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$ 285.99 USD
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Restore pedal feel with a new brake vacuum pump
Pierburg - Corporate Logo
T#:594704
Part#: 11667619350
Ships in 2 Business Days
$ 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