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Genuine BMW BMW Brake Master Cylinders for BMW E21 320i M10 1.8L

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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 Components (1)

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Genuine BMW Brake Booster Vacuum Hose - E32 E10 E39 E24 E28 E3 E30 E1...

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T#:368303

Part#: 34331115926

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2% off MSRP

$ 41.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 40.99 USD

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Gasket Ring

A10X13,5-Al

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T#:6483

Part#: 07119963073

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This product was last offered at the strikethrough price on
05-14-2026

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Genuine BMW Gasket Ring
This item fits the following BMW Chassis:
E30 M3,E34 M5,E60 M5,E63 M6,E30,E34,E39,E46,E53 X5 X5,E63,E83 X3,E85 Z4

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- Brake Master Cylinder Components (1)

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