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Caliper and Brake Lines

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BRAKELINEKIT04
Product Information
Product Information
Caliper brake line kit - front and rear
Sold as a set of 4 brake lines

Fits:

Porsche 987.1 / 987.22 Boxster - 2005 to 2012
Porsche 987.21 / 987.2 Boxster S  - 2005 to 2012
Porsche 987.1 Cayman 
- 2005 to 2012
Porsche 987.2 Cayman S / Cayman R 
2005 to 2012
For cars WITHOUT PCCB (ceramic brakes)


Diagram ref no 1, 7 and 5, 6



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BRAKELINEKIT04
98735558100
987351158101
98735558200
98735558201
99635558106
99635558107
99635158406
99635558407

The product you are viewing cross references to these numbers
Special Order item
99735533101
Product Information
Product Information
Brake Line Retainer Spring Clip
Sold each

porsche

Fits:
Porsche 986 Boxster 1997-04
Porsche 996 Carrera 1998-05
Porsche 996 Turbo / GT2
Porsche 996 GT3
Porsche 997 Carrera MKI & MKII 2005>>
Porsche 997 Turbo / GT2 2007>>
Porsche 987 Boxster MKI & MKII 2005>>
Porsche 987C Cayman MKI & MKII 2006>>


Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99735533101
99735533100
99735533101

The product you are viewing cross references to these numbers
Special Order item
99735575300
Product Information
Product Information
Brake line support reinforcement.

Porsche 987 Boxster / Boxster S MKI 2005-08
Porsche 987 Boxster MKII 2009-12
Porsche 987C Cayman / Cayman S MKI 2005-08
Porsche 987C Cayman MKII 2009-12
Porsche 997.1 Carrera 2005-08
Porsche 997.2 Carrera 2009-12

Click 'Zoom in' for large parts diagram.
Diagram ref no 7

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99735575300
99735575300

The product you are viewing cross references to these numbers
Special Order item
9963555849B
Product Information
Product Information
Caliper Brake line RIGHT. FRONT axle for PCCB
Connects the caliper to the flexible brake hose.

porsche

front
Fits:
Porsche 987 Boxster / Boxster S MKI 2005-08
Porsche 987 Boxster MKII 2009-12
Porsche 987C Cayman / Cayman S MKI 2005-08
Porsche 987C Cayman MKII 2009-12
Porsche 996 GT2 2001-05
Porsche 996 GT3 1999-05
Porsche 997.1 Carrera 2S 2005-08 CABRIO / COUPE
Porsche 997.2 Carrera 2 / 2S 2009-12 CABRIO / COUPE
Porsche 997.2 Carrera 4 / 4S 2009-12 CABRIO / COUPE
Porsche 997.2 GT3 2010-2012

Click 'Zoom in' for large parts diagram.
Diagram ref no 7

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

9963555849B
9963555849B

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About Caliper and Brake Lines

Porsche Calipers & Brake Lines | Design911 Precision Components for Hydraulic Pressure, Control & Performance

Calipers and brake lines are critical elements of your Porsche’s braking system, working together to deliver consistent hydraulic pressure and stopping power. The caliper converts fluid pressure into mechanical force, pressing the brake pads against the disc, while the brake lines ensure precise fluid transfer throughout the system. Maintaining these components in top condition is essential for safety, braking balance, and pedal feel — especially in high-performance or demanding driving environments.

At Design911, we offer a premium range of brake calipers and lines, designed for precision fitment, strength, and reliability. Each component is crafted using corrosion-resistant materials and advanced engineering to deliver consistent hydraulic response, heat resistance, and long-term durability. Whether for road use, restoration, or motorsport applications, our products ensure your Porsche’s braking system performs at its absolute best.

What Do Calipers & Brake Lines Do?

Brake calipers and lines form the hydraulic backbone of the braking system, converting pedal force into controlled, powerful deceleration.

Core Functions:
• Calipers apply clamping force to the brake pads against the discs.
• Brake lines transfer pressurised fluid from the master cylinder to the calipers.
• Ensure consistent pressure and braking balance across all wheels.
• Support heat dissipation and smooth hydraulic operation.
• Maintain precise pedal feel for confident braking control.

Together, these components ensure your Porsche’s brakes deliver the precision, power, and stability required for road and track use alike.

Why Do Calipers & Brake Lines Fail or Degrade?

Both components are exposed to extreme heat, pressure, and environmental elements — conditions that can lead to wear, corrosion, and eventual failure.

Common Causes of Failure Include:
• Corrosion or rust on calipers and fittings.
• Leaking hydraulic seals or damaged pistons.
• Cracked or bulging rubber brake hoses.
• Air or moisture contamination in the hydraulic system.
• Brake fluid degradation causing internal corrosion.
• Physical damage from debris, impact, or improper installation.

When calipers or brake lines fail, braking performance becomes inconsistent or unsafe — with symptoms like spongy pedals, fluid leaks, or uneven braking response.

Why Replace or Upgrade Your Porsche Calipers & Brake Lines?

Replacing worn or corroded components ensures your braking system operates safely and efficiently. Upgrading to high-performance or stainless-steel brake lines enhances pressure consistency and pedal feel, while refurbished or precision-engineered calipers restore perfect hydraulic control.

Key Benefits:
• Restores full hydraulic braking performance.
• Improves pedal responsiveness and feel.
• Eliminates leaks, corrosion, and pressure loss.
• Enhances braking stability under high temperatures.
• Available in performance and standard replacement options.
• Suitable for classic and modern Porsche models.

Design911’s Porsche calipers and brake lines deliver uncompromising reliability and precision — ensuring your Porsche stops with the same confidence it accelerates.

Highlights

• High-quality Porsche brake calipers and hydraulic lines.
• Engineered for performance, durability, and exact fitment.
• Stainless-steel braided options for improved pressure stability.
• Corrosion- and heat-resistant construction.
• Perfect for road, race, and restoration applications.
• Compatible with a wide range of Porsche models.

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