BMW Brake Master Cylinders for BMW E39 M5 S62 5.0L

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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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Genuine BMW Brake Master Cylinder Reservoir
Genuine BMW Brake Master Cylinder Reservoir
For vehicles with production date from 09/1997
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:20884
Part#: 34326758848
In Stock
5% off MSRP $ 152.99

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

$ 145.99 USD
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5% off MSRP
$ 152.99

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

$ 145.99 USD
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Add to Wish List


Genuine BMW Expansion Tank With Warning Switch
This item fits the following BMW Chassis:
E39 M5,E38,E39,E65

Genuine BMW Brake booster vacuum hose - E39 M5
Genuine BMW Brake booster vacuum hose - E39 M5
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:62433
Part#: 34302229062
Ships in 3 Business Days
3% off MSRP $ 111.99

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

$ 108.99 USD
Free Shipping
Add to Wish List
3% off MSRP
$ 111.99

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

$ 108.99 USD
Free Shipping
Add to Wish List


Genuine BMW Vacuum Hose
This item fits the following BMW Chassis:
E39 M5,E39

Brake Master Cylinder
Brake Master Cylinder
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
URO - Corporate Logo
T#:373215
Part#: 34311165544
Ships in 1 Business Day
$ 106.99

This product was last offered at the strikethrough price on
05-07-2026

$ 88.99 USD
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$ 88.99 USD
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Make sure your pedal force is actually making it to the calipers, otherwise you won't be able to stop. Stop quicker, better, and more reliably with new braking components.

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