ATE 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 ...
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T#:8084
Part#: 34311155270
In Stock at Vendor
$ 417.94 USD
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$ 417.94 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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Brake Vacuum Non-Return Check Valve
Brake Vacuum Non-Return Check Valve
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T#:389374
Part#: 34331151533A
In Stock at Vendor
$ 52.99

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

$ 50.99 USD
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$ 50.99 USD
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Check valve used in the large vaccuum hose between the throttle body and brake booster. OEM Ate part. Replaces OE BMW #34331151532.
ATE Brake Booster - E23, E24, E28
ATE Brake Booster - E23, E24, E28
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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T#:587430
Part#: 34331156925
Ships in 1-2 days
$ 1,470.43 USD
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$ 1,470.43 USD
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Replacement Brake Booster
ATE Master Cylinder Reservoir Grommet
ATE Master Cylinder Reservoir Grommet
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T#:375679
Part#: 34311160133
In Stock
$ 4.99

This product was last offered at the strikethrough price on
05-28-2026

$ 3.99 USD
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$ 3.99 USD
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Secures the reservoir to the master cylinder
ATE O-Ring - E10, E12, E21, E24, E28, E3, E30, E9
ATE O-Ring - E10, E12, E21, E24, E28, E3, E30, E9
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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T#:1196093
Part#: 34314650345
In Stock at Vendor
$ 4.99 USD
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$ 4.99 USD
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Seals the brake master cylinder to the power brake booster.

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