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ATE BMW Brake Master Cylinders

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 - E32 735i 750il, E30 Upgrade
Brake Master Cylinder - E32 735i 750il, E30 Upgrade
ATE - Corporate Logo
T#:15922
Part#: 34311156643
In Stock
$ 433.94

This product was last offered at the strikethrough price on
06-26-2026

$ 370.79 USD
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$ 370.79 USD
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This is the OEM brake master cylinder for E32 750il made by ATE. This master cylinder can be used as an upgrade for E30 models (in conjunction with brake line #34326755585).

This item fits the following BMWs:
1987-3/1988 E32 BMW 735i 735il
1988-1994 E32 BMW 750il

Brake Master Cylinder Upgrade
1984-1991 E30 BMW 325e 325es 325i 325ic 325is M3
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Brake Booster Servo Unit - E46 323i, 325i 328i, 330i
Brake Booster Servo Unit - E46 323i, 325i 328i, 330i
ATE - Corporate Logo
T#:20886
Part#: 34336779682
Ships in 1 day
$ 329.10

This product was last offered at the strikethrough price on
08-13-2026

$ 284.98 USD
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$ 284.98 USD
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This ATE Brand brake booster is a direct replacement for the factory BMW vacuum assited brake booster servo unit on E46 3 series models.

This item fits the following BMWs:
1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi
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ATE Brake Master Cylinder - E46, Z4
ATE Brake Master Cylinder - E46, Z4
ATE - Corporate Logo
T#:374237
Part#: 34336785666
Ships in 1 day
$ 313.99

This product was last offered at the strikethrough price on
06-18-2026

$ 172.99 USD
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$ 172.99 USD
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Direct replacement master cylinder
Brake Booster
Brake Booster
ATE - Corporate Logo
T#:594506
Part#: 34336779681
Ships in 1 Business Day
$ 345.18 USD
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$ 345.18 USD
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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 Vacuum Pump - E82, E84, E90, E91, E92
ATE Vacuum Pump - E82, E84, E90, E91, E92
ATE - Corporate Logo
T#:1195882
Part#: 34336779721
Ships in 1 day
$ 402.99

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

$ 391.99 USD
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$ 391.99 USD
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Replace your failed brake booster to restore braking power
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
Brake Master Cylinder
Brake Master Cylinder
ATE - Corporate Logo
T#:5309611
Part#: 34336786585
Ships in 1 Business Day
$ 229.99 USD
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$ 229.99 USD
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