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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 5 Business Days
Sale - Save 2% $ 198.99

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

$ 194.56 USD
Free Shipping
Sale - Save 2%
$ 198.99

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

$ 194.56 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.

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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Brake Master Cylinder Upgrade - E30 325e, 325i, M3
10X Entries Into Our F80 M3 Sweepstakes
Turner Motorsport - Corporate Logo
T#:14298
Part#: TMS14298
Ships in 1 day
$ 413.99

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

$ 348.99 USD
Free Shipping
$ 348.99 USD
Free Shipping
This is the 25mm master cylinder upgrade for E30 3 series. It features the larger master cylinder from the E32 750il (#34311156643) with the new required brake line (#34326755585). This set up is used on many track driven E30's to allow for extra stopping power.

This item fits the following BMWs:
1984-1991 E30 BMW 325e 325es 325i 325ic 325is M3
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Cohline - Corporate Logo
T#:8095
Part#: 34331115926
In Stock
$ 24.34

This product was last offered at the strikethrough price on
07-15-2026

$ 22.90 USD
Free Shipping on orders $49 and up
$ 22.90 USD
Free Shipping on orders $49 and up
BMW BRAKES VACUUM HOSE 34331115926

Genuine MINI - Corporate Logo
T#:63431
Part#: 34336756235
Ships on Oct 6, 2026
7% off MSRP $ 141.99

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

$ 131.99 USD
Free Shipping on orders $49 and up
7% off MSRP
$ 141.99

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

$ 131.99 USD
Free Shipping on orders $49 and up
Genuine MINI EXPANSION TANK WITH WARNING
Genuine MINI - Corporate Logo
T#:63414
Part#: 34332753124
In Stock
Sale - Save 7% $ 35.61

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

$ 32.94 USD
Free Shipping on orders $49 and up
Sale - Save 7%
$ 35.61

This product was last offered at the strikethrough price on
08-26-2026

$ 32.94 USD
Free Shipping on orders $49 and up
Genuine MINI VACUUM PIPE

Genuine MINI - Corporate Logo
T#:418833
Part#: 34336770607
Ships in 3 Business Days
6% off MSRP $ 30.99

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

$ 28.99 USD
Free Shipping on orders $49 and up
6% off MSRP
$ 30.99

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

$ 28.99 USD
Free Shipping on orders $49 and up
Genuine MINI - Corporate Logo
T#:186272
Part#: 34336857907
Special Order: No Guaranteed ETA
8% off MSRP $ 495.99

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

$ 456.99 USD
Free Shipping on orders $49 and up
8% off MSRP
$ 495.99

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

$ 456.99 USD
Free Shipping on orders $49 and up
Genuine Mini Brake Master Cylinder

Upgrade your Mini's braking system with the Genuine Mini R56 Brake Master Cylinder. This OEM part ensures reliable performance and precise braking control for Mini R56 models. Engineered to Mini's exact specifications, it provides seamless integration and enhanced safety on the road. With durable construction and efficient hydraulic operation, this brake master cylinder maintains optimal braking efficiency, ensuring a smooth and responsive braking experience.

  • Genuine OEM part for reliability
  • Ensures precise braking control
  • Seamless integration with Mini R56 models
  • Durable construction for long-lasting performance
  • Enhances safety and braking efficiency

Upgrade your Mini with the Genuine Mini Brake Master Cylinder for improved braking performance.

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Genuine MINI - Corporate Logo
T#:407898
Part#: 11667556919
Ships in 3 Business Days
8% off MSRP $ 475.21

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

$ 435.24 USD
Free Shipping
8% off MSRP
$ 475.21

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

$ 435.24 USD
Free Shipping

Genuine MINI - Corporate Logo
T#:217523
Part#: 11668654605
Ships in 3 Business Days
8% off MSRP $ 511.99

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

$ 471.99 USD
Free Shipping
8% off MSRP
$ 511.99

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

$ 471.99 USD
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Genuine Mini Vacuum Pump - 11668654605
Genuine MINI - Corporate Logo
T#:14642
Part#: 11667586424
Ships in 3 Business Days
8% off MSRP $ 511.55

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

$ 469.95 USD
Free Shipping
8% off MSRP
$ 511.55

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

$ 469.95 USD
Free Shipping
Genuine MINI VACUUM PUMP
Fits BMW Engines including:
N18

Genuine MINI - Corporate Logo
T#:15938
Part#: 34336786585
Ships in 3 Business Days
8% off MSRP $ 495.99

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

$ 456.99 USD
Free Shipping
8% off MSRP
$ 495.99

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

$ 456.99 USD
Free Shipping
Genuine MINI BRAKE MASTER CYLINDER


Febi - Corporate Logo
T#:38452807
Part#: 11660151054
Special Order: No Guaranteed ETA
$ 224.99 USD
$ 224.99 USD
Most vehicles send engine vacuum from the intake manifold to the brake booster to provide power assistance to the braking system. However, due to your vehicle's engine having different vacuum characteristics, BMW decided to use an electronically operated auxiliary vacuum pump instead. Mounted to the front of the cylinder head, this part serves as the vacuum source and replaces the vacuum your brake booster would be receiving from the intake manifold. An auxiliary vacuum pump failure could cause many symptoms, most commonly a harder-feeling brake pedal resulting in longer stopping distances. A failure could also result in a vacuum leak, triggering a check engine light and potentially causing the engine to stall and run poorly. If your car exhibits any of the above symptoms, it may be time to replace your vacuum pump. Thankfully, this Febi replacement functions identically to the factory component.
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Febi - Corporate Logo
T#:53396914
Part#: 11667586424
Special Order: No Guaranteed ETA
New Item
$ 163.99 USD
Free Shipping on orders $49 and up