BMW Brake Master Cylinders for BMW 3 Series E36 (1992-1998)

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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 Power Brake Booster - E36
ATE Power Brake Booster - E36
For vehicles with production date up to 09/1996 with ASC+T and up to 09/1994 without ASC+T For vehicles with production date up to 09/1996 with ASC+T
ATE - Corporate Logo
T#:16441600
Part#: 34331162965
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$ 331.99 USD
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$ 331.99 USD
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Has your brake pedal become stiff and hard to depress, or goes right to the floor with no pressure or feel, most likely the brake booster unit has failed. Replace the brake booster right away to restore proper braking performance.
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ATE Brake Booster - E36
ATE Brake Booster - E36
ATE - Corporate Logo
T#:16441603
Part#: 34331162963
In Stock
$ 258.99 USD
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$ 258.99 USD
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Has your brake pedal become stiff and hard to depress, or goes right to the floor with no pressure or feel, most likely the brake booster unit has failed. Replace the brake booster right away to restore proper braking performance.
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ATE Master Cylinder Reservoir Grommet
ATE Master Cylinder Reservoir Grommet
ATE - Corporate Logo
T#:375679
Part#: 34311160133
In Stock
$ 4.99

This product was last offered at the strikethrough price on
07-14-2026

$ 3.99 USD
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$ 3.99 USD
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Secures the reservoir to the master cylinder
Brake Booster - E36 3-series
Brake Booster - E36 3-series
TRW - Corporate Logo
T#:25142287
Part#: 193321071672
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$ 193.99 USD
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$ 193.99 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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