ATE BMW Brake Master Cylinders for BMW Z3 (1996-2002)

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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 Brake Booster - E36
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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T#:16441603
Part#: 34331162963
Back Ordered
$ 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 Check Valve Gasket - E46, E82, E88, E90, E91, E92, E93, Z3, Z4 ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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T#:8105
Part#: 34336765316
In Stock
$ 3.99

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

$ 2.99 USD
Free Shipping on orders $49 and up
$ 2.99 USD
Free Shipping on orders $49 and up
BMW BRAKES GASKET 34336765316
ATE Master Cylinder Reservoir Grommet
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
ATE - Corporate Logo
T#:375679
Part#: 34311160133
In Stock
$ 4.99

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

$ 3.99 USD
Free Shipping on orders $49 and up
$ 3.99 USD
Free Shipping on orders $49 and up
Secures the reservoir to the master cylinder

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