BMW Brake Master Cylinders for BMW 1 Series E82 (2008-2013)

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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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ATE Vacuum Pump - E82, E84, E90, E91, E92
ATE Vacuum Pump - E82, E84, E90, E91, E92
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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T#:1195882
Part#: 34336779721
Ships in 1-2 days
$ 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
TRW Brake Booster - E90/E82/E84 - 1 Series/ 3 Series/ X1 - 28i
TRW Brake Booster - E90/E82/E84 - 1 Series/ 3 Series/ X1 - 28i ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
TRW - Corporate Logo
T#:23615517
Part#: 193321071832
Back Ordered
$ 327.99 USD
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$ 327.99 USD
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The brake booster in a car is essential for improving the efficiency of the braking system by amplifying the force exerted on the brake pedal. As time passes, the brake booster may undergo wear and tear, resulting in problems like reduced braking power, a soft or spongy brake pedal sensation, and potential brake fluid leaks. These issues pose a threat to the overall safety and performance of the vehicle. Consequently, replacing a worn or malfunctioning brake booster is crucial to maintaining optimal braking performance and ensuring the safety of the vehicle.
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ATE Master Cylinder Reservoir Grommet
ATE Master Cylinder Reservoir Grommet
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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T#:375679
Part#: 34311160133
In Stock at Vendor
$ 4.99 USD
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$ 4.99 USD
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Secures the reservoir to the master cylinder
ATE Bleed Valve Screw for Dynamic Rear Sway Bar
ATE Bleed Valve Screw for Dynamic Rear Sway Bar
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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T#:591036
Part#: 34116768018
Ships in 1 Business Day
$ 10.08 USD
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$ 10.08 USD
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Bleed Valve Screw for Dynamic Rear Sway Bar
TRW Brake Booster - E82/E84/E90 - 1-Series/ X1/ 3-Series
TRW Brake Booster - E82/E84/E90 - 1-Series/ X1/ 3-Series
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
TRW - Corporate Logo
T#:23615518
Part#: 193321071863
Ships in 2 Business Days
$ 324.99 USD
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$ 324.99 USD
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The brake booster in a car is essential for improving the efficiency of the braking system by amplifying the force exerted on the brake pedal. As time passes, the brake booster may undergo wear and tear, resulting in problems like reduced braking power, a soft or spongy brake pedal sensation, and potential brake fluid leaks. These issues pose a threat to the overall safety and performance of the vehicle. Consequently, replacing a worn or malfunctioning brake booster is crucial to maintaining optimal braking performance and ensuring the safety of the vehicle.
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ATE Check Valve Gasket - E46, E82, E88, E90, E91, E92, E93, Z3, Z4
ATE Check Valve Gasket - E46, E82, E88, E90, E91, E92, E93, Z3, Z4 ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
ATE - Corporate Logo
T#:8105
Part#: 34336765316
In Stock
$ 3.99

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

$ 2.99 USD
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$ 2.99 USD
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BMW BRAKES GASKET 34336765316
ATE Brake Master Cylinder - E82/E88 128i
ATE Brake Master Cylinder - E82/E88 128i
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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T#:16441607
Part#: 34336779718
Special Order: No Guaranteed ETA
$ 174.99 USD
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$ 174.99 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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