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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
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Turner Motorsport - Corporate Logo
T#:48642684
Part#: 059282LA01KT1
In Stock
New Item
Sale - Save 3% $ 198.99

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

$ 192.77 USD
Free Shipping
Sale - Save 3%
$ 198.99

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

$ 192.77 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
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Turner Motorsport - Corporate Logo
T#:48642681
Part#: 059282LA01KT
In Stock
New Item
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
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Turner Motorsport - Corporate Logo
T#:14298
Part#: TMS14298
Ships in 3 Business Days
$ 413.99 USD
Free Shipping
$ 413.99 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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MINI R56 Vacuum Pump VP00070 - 11668654605
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
OEM - Corporate Logo
T#:725973
Part#: 11668654605
Ships in 5 Business Days
$ 237.99 USD
Free Shipping on orders $49 and up

MINI R56 Vacuum Pump VP00070 - 11668654605 is a high-quality metal control pump designed to mount to the side of the cylinder head block near the end of the cam. It is an ideal replacement for a noisy or malfunctioning unit, ensuring reliable operation and efficiency.

  • Designed for precise fitment on MINI R56 models
  • Replaces noisy or broken vacuum pumps for optimal performance
  • Mounts securely to the side of the cylinder head block
  • Includes an O-ring for a secure seal
  • OE supplier to MINI for guaranteed quality
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