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BMW Brake Master Cylinders

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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E30 24V Swap Brake Fluid Reservoir Relocation Kit
10X Entries Into Our F80 M3 Sweepstakes
Turner Motorsport - Corporate Logo
T#:48642684
Part#: 059282LA01KT1
Ships in 3 Business Days
Sale - Save 2% $ 198.99

This product was last offered at the strikethrough price on
06-14-2026

$ 194.56 USD
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Sale - Save 2%
$ 198.99

This product was last offered at the strikethrough price on
06-14-2026

$ 194.56 USD
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When swapping an M5X engine into your E30, interference between the intake manifold and brake booster-mounted reservoir is a common problem. Tighter clearance necessitates the use of a different brake booster, which means the brake fluid reservoir will need to be retrofitted or relocated. This is particularly difficult when using the larger, dual-diaphragm brake booster from an E32 or E34.

To solve this issue, we've designed a clean, OE-style solution that requires zero fabrication. Our stainless steel bracket relocates the brake fluid reservoir to the original, left-hand strut tower location, once used for mounting the M20's power steering fluid reservoir. This provides the clearance necessary for fitting an M50/S50, M52/S52, M54, or S54 in the engine bay of your E30.

Designed with the DIY E30 24V swap community in mind, our design delivers factory-quality fit and finish with none of the guesswork.

FEATURES

Brushed stainless steel bracket for corrosion resistance and durability Yellow zinc-plated hardware to match the original Genuine BMW fasteners Compatible with the ATE remote reservoir found on E10 2002 models (part number 34321112399) KIT CONTENTS

Turner Motorsport Brake Fluid Reservoir Bracket & Installation Hardware ATE Remote Brake Fluid Reservoir Genuine BMW Connecting Pipe Remote Reservoir Hose PRODUCT DEVELOPMENT

Our 24V Swap Brake Fluid Reservoir Bracket was designed, engineered, tested, and quality inspected by our Research and Development team in our Wadsworth, Ohio, facility. We strive for the highest level of precision and quality through leading-edge product development technology, including FARO laser scanning for reverse engineering and quality inspection, SolidWorks 3D CAD modeling, rapid prototyping utilizing our in-house 3D printer, and rigorous long-term product testing.

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E30 24V Swap Brake Fluid Reservoir Relocation Bracket
10X Entries Into Our F80 M3 Sweepstakes
Turner Motorsport - Corporate Logo
T#:48642681
Part#: 059282LA01KT
In Stock
Sale - Save 26% $ 68.99

This product was last offered at the strikethrough price on
06-14-2026

$ 51.05 USD
Free Shipping
Sale - Save 26%
$ 68.99

This product was last offered at the strikethrough price on
06-14-2026

$ 51.05 USD
Free Shipping

When swapping an M5X engine into your E30, interference between the intake manifold and brake booster-mounted reservoir is a common problem. Tighter clearance necessitates the use of a different brake booster, which means the brake fluid reservoir will need to be retrofitted or relocated. This is particularly difficult when using the larger, dual-diaphragm brake booster from an E32 or E34.

To solve this issue, we've designed a clean, OE-style solution that requires zero fabrication. Our stainless steel bracket relocates the brake fluid reservoir to the original, left-hand strut tower location, once used for mounting the M20's power steering fluid reservoir. This provides the clearance necessary for fitting an M50/S50, M52/S52, M54, or S54 in the engine bay of your E30.

Designed with the DIY E30 24V swap community in mind, our design delivers factory-quality fit and finish with none of the guesswork.

Looking for a complete kit that includes the brake fluid reservoir, hose, and other mounting components? See T#48642684.

FEATURES

Brushed stainless steel bracket for corrosion resistance and durability Yellow zinc-plated hardware to match the original Genuine BMW fasteners Compatible with the ATE remote reservoir found on E10 2002 models (part number 34321112399) PRODUCT DEVELOPMENT

Our 24V Swap Brake Fluid Reservoir Bracket was designed, engineered, tested, and quality inspected by our Research and Development team in our Wadsworth, Ohio, facility. We strive for the highest level of precision and quality through leading-edge product development technology, including FARO laser scanning for reverse engineering and quality inspection, SolidWorks 3D CAD modeling, rapid prototyping utilizing our in-house 3D printer, and rigorous long-term product testing.

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Vacuum Pump
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:3136230
Part#: 11668654605
Ships in 3 Business Days
Sale - Save 5% $ 237.99

This product was last offered at the strikethrough price on
08-31-2026

$ 226.09 USD
Free Shipping
Sale - Save 5%
$ 237.99

This product was last offered at the strikethrough price on
08-31-2026

$ 226.09 USD
Free Shipping

Rein - Corporate Logo
T#:45997531
Part#: 11667635657
Ships in 3 Business Days
Sale - Save 5% $ 225.99

This product was last offered at the strikethrough price on
08-31-2026

$ 214.42 USD
Free Shipping on orders $49 and up
Sale - Save 5%
$ 225.99

This product was last offered at the strikethrough price on
08-31-2026

$ 214.42 USD
Free Shipping on orders $49 and up
If the brakes in your BMW have begun to feel a little soft or stopping doesn't seem like it used to, it may be your vacuum pump. The vacuum pump assists the power braking system in providing ample braking pressure.
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Rein Vacuum Valve - E60 - M54
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:53856294
Part#: 11617521860
Ships in 3 Business Days
New Item
Sale - Save 6% $ 54.99

This product was last offered at the strikethrough price on
08-31-2026

$ 51.44 USD
Sale - Save 6%
$ 54.99

This product was last offered at the strikethrough price on
08-31-2026

$ 51.44 USD
Technical Data Sheet: Rein Automotive OE Vacuum Control Valve Part Number: 11617521860 Engineering peak performance in European power units requires absolute fidelity to original equipment specifications. The Rein Automotive OE Quality Vacuum Valve is engineered to meet the rigorous demands of professional motorsport and high-performance maintenance environments.
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Vacuum Pump With Gasket For Brake Booster
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:599681
Part#: 11667619350
Ships in 3 Business Days
Sale - Save 5% $ 301.99

This product was last offered at the strikethrough price on
08-31-2026

$ 286.89 USD
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Sale - Save 5%
$ 301.99

This product was last offered at the strikethrough price on
08-31-2026

$ 286.89 USD
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Vacuum Pump
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:24112783
Part#: 11667519458
Ships in 3 Business Days
Sale - Save 5% $ 328.99

This product was last offered at the strikethrough price on
08-31-2026

$ 312.54 USD
Free Shipping
Sale - Save 5%
$ 328.99

This product was last offered at the strikethrough price on
08-31-2026

$ 312.54 USD
Free Shipping