BMW Brake Master Cylinders for BMW 5 Series E28 (1982-1988)

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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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Brake Master Cylinder - E28 528e 535i M5, E24 633csi 635csi M6
Brake Master Cylinder - E28 528e 535i M5, E24 633csi 635csi M6 ...
ATE - Corporate Logo
T#:8084
Part#: 34311155270
In Stock at Vendor
$ 423.81

This product was last offered at the strikethrough price on
08-26-2026

$ 375.35 USD
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$ 375.35 USD
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This is an OEM replacement brake master cylinder that fits many E28 5 series and E24 6 series. If your original BMW brake master cylinder has failed, this is the high quality replacement you need.

only for cars with ABS

This item fits the following BMWs:
1982-1988 E28 BMW 524td 528e 535i 535is M5
1983-1989 E24 BMW 633csi 635csi M6
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ATE Brake Booster - E23, E24, E28
ATE Brake Booster - E23, E24, E28
ATE - Corporate Logo
T#:587430
Part#: 34331156925
In Stock
$ 1,470.43 USD
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$ 1,470.43 USD
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Replacement Brake Booster
Genuine BMW Brake Master Cylinder Cap
Genuine BMW Brake Master Cylinder Cap
Genuine BMW - Corporate Logo
T#:8088
Part#: 34321120841
Special Order: No Guaranteed ETA
2% off MSRP $ 141.99

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

$ 138.99 USD
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2% off MSRP
$ 141.99

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

$ 138.99 USD
Free Shipping
Add to Wish List


Genuine BMW Cap With Warning Switch - Ate
This item fits the following BMW Chassis:
E30 M3,E30

Genuine BMW Pressure Hose Assembly - E28 533i 535i 535iS M5
Genuine BMW Pressure Hose Assembly - E28 533i 535i 535iS M5
Genuine BMW - Corporate Logo
T#:206484
Part#: 34321154132
Ships in 1-2 days
3% off MSRP $ 141.99

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

$ 137.99 USD
Free Shipping
Add to Wish List
3% off MSRP
$ 141.99

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

$ 137.99 USD
Free Shipping
Add to Wish List
Genuine BMW Pressure Hose Assy - 34321154132
Genuine BMW Brake fluid reservoir
Genuine BMW Brake fluid reservoir
Genuine BMW - Corporate Logo
T#:23053
Part#: 34321151729
Ships in 1-2 days
3% off MSRP $ 744.99

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

$ 720.99 USD
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3% off MSRP
$ 744.99

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

$ 720.99 USD
Free Shipping
Add to Wish List


Genuine BMW Expansion Tank - Ate
This item fits the following BMW Chassis:
E30 M3,E30

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