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Caliper and Brake Lines

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DISPLAYING 1 to 16 (of 30 products)
1 2
BRAKELINEKIT01
Product Information
Product Information
Caliper brake line kit - front and rear
Sold as a set of 4 brake lines

Fits:

Porsche 996 Carrera 2  - 1997 to 2005
Porsche 996 GT3 - 1999 to 2005 
Porsche 997.1 Carrera 2 / Carrera 2S - 2005 to 2008 
Porsche 997.2 Carrera 2 / Carrera 2S - 2009 to 2012
For cars WITHOUT PCCB (ceramic brakes)

Diagram ref no 1, 7 and 5, 6



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BRAKELINEKIT01
99635558500
99635558501
99635558600
99635558601
99635558406
99635558407
99635558106
99635558107

The product you are viewing cross references to these numbers
BRAKELINEKIT02
Product Information
Product Information
Caliper brake line kit - front and rear
Sold as a set of 4 brake lines

Fits:

Porsche 996 Carrera 4  - 1997 to 2005
Porsche 996 Carrera 4S  - 2001 to 2005
Porsche 996 turbo / turbo S - 2000 to 2005
For cars WITHOUT PCCB (ceramic brakes)

Diagram ref no 1, 7 and 5, 6



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BRAKELINEKIT02
99635558500
99635558501
99635558600
99635558601
99635558702
99635558802

The product you are viewing cross references to these numbers
Special Order item
99635196
Product Information
Product Information
Caliper Brake line. Front axle.


porsche

front
For cars WITHOUT ceramic brakes
Porsche 996 3.6L C4S 2002>>
Porsche 996 Turbo 2001-05
Porsche 996 GT3 1999-05
Porsche 997.1 C2 / C2S / C4 / C4S 2005-08
Porsche 997.2 C2S / C4S 2008-12
Porsche 997.2 GTS / C4 GTS 2008-12

Click 'Zoom in' for large parts diagram.
Diagram ref no 10



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99635196
99635196111
99635196211

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Special Order item
99635532744
Product Information
Product Information
ABS Brake Line.
Restore the integrity of your brake hydraulics with this genuine OEM rigid brake line for the Porsche 911 (996 Carrera/Carrera 4) models. This high-quality rigid steel line forms part of the front section brake-line circuit (often associated with the ABS/ modulator unit) and ensures optimal brake fluid delivery, pressure stability and system reliability.

Fits:
  • Porsche 996 C2 3.4L 1999
  • Porsche 996 C4 3.4L 1999

Diagram Ref No 6

What This Product Does:

  • This brake line carries hydraulic brake fluid under high pressure from the brake master cylinder or hydraulic/ABS unit to the front brakes (or to the relevant section identified) in the braking system.
  • Because it is a rigid line (usually steel or lacquered steel), it provides a fixed, stable conduit for fluid, resists expansion and maintains proper pedal feel and brake response.
  • In an ABS-equipped system, having correct brake line integrity is vital for the anti-lock system to sense and modulate pressure correctly. A damaged or corroded line can compromise braking or ABS functionality.

Symptoms & Signs Of Wear Or Failure:
  • Visible damage or corrosion: Rusted, pitted or flared ends, cracks in the line or flaking coating that indicate structural weakness.
  • Brake fluid leak: Any sign of fluid seepage, drips, dampness along the underside or around fittings — a failing rigid line can leak at the flare or crack.
  • Soft brake pedal or spongy feel: While harder to detect with a rigid line, if that section is compromised or has internal blockage, pedal feel may degrade.
  • ABS warning or braking inconsistency: If the ABS unit is unable to regulate pressure or if one circuit is compromised, you may see warning lights or uneven braking.
  • During restoration or braking system overhaul: If other parts are being replaced (ABS unit, calipers, fluid), it’s good practice to replace brake lines that look old or suspect, especially for critical parts like rigid front lines.

Why Replacement Matters:
  • Safety & braking performance: The braking system is one of the most critical safety systems in the vehicle. A deteriorated brake line compromises braking response and could lead to failure.
  • Brake pedal feel and response reliability: A properly installed, intact brake line ensures consistent pedal pressure and predictable braking — essential for the driver’s control.
  • ABS & system integrity: In a system with ABS and hydraulic modulator units, all lines must be within specification for proper functioning. A damaged line in this circuit may compromise the system.



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99635532744
99635532744
99635532740

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Special Order item
99635550705
Product Information
Product Information
Brake hose support, Front left.

porsche

Fits:
Porsche 996 C4S 2002>>
Porsche 997.1 C4*
Porsche 997.2 C4*
*not for cars with PCCB/option I450

Special Order item
99635517530
Product Information
Product Information
Brake line, Front, Left.

porsche

Fits:
Porsche 996 C4 / C4S 2002-05
Porsche 996 Turbo 2001-05

This part number has been superseded from previous numbers:
- 99635517528

Click 'Zoom in' for large parts diagram.
Diagram ref no 5

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99635517530
99635517530
99635517528

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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>>


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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
99635517512
Product Information
Product Information
Brake line, Left.

porsche

Fits:
Porsche 986 Boxster 1998-04 F 98-WS607 095>>
Porsche 996 Carrera 1997-04 F >> 99-WS606 999
/ F >> 99-WS640 804
Porsche 996 GT2 2001-05
Porsche 996 GT3 1999-05

Click 'Zoom in' for large parts diagram.
Diagram ref no 5

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99635517512
99635517512
99635517511
99635517510
99635517508

The product you are viewing cross references to these numbers
Special Order item
99635517913
Product Information
Product Information
Brake line. Front axle.

porsche

Fits:
Porsche 986 Boxster 1997-05
Porsche 996 Carrera 1998-05
Porsche 996 Turbo / GT2 2001-05
Porsche 996 GT3 2004-05

Click 'Zoom in' for large parts diagram.
Diagram ref no 19

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

99635517913
99635517913
99635517912
99635517911
99635517909
99635517908
99635517907
99635517906

The product you are viewing cross references to these numbers
Special Order item
99635517608
Product Information
Product Information
Brake pipe line front right.

porsche

Fits:
Porsche 986 Boxster >>1998
F >> 98-XU621 174

Porsche 996 Carrera 2 up to 1999
F >>99XS622 838
F >>99XS650 677

This part number has been superseded from previous numbers:
- 99635517606

Click 'Zoom in' for large parts diagram.
Diagram ref no 9

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

99635517608
99635517608
99635517606

The product you are viewing cross references to these numbers
Special Order item
99635517610
Product Information
Product Information
Brake pipe line front right.

porsche

Fits:
Porsche 986 Boxster 1998>>
F 98-XU621175 >>

Porsche 996 Carrera 2 1999>>
F 99-XS622 839>>
F 99-SX650 678>>

This part number has been superseded from previous numbers:
- 99635517607
- 99635517609

Click 'Zoom in' for large parts diagram.
Diagram ref no 9

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99635517610
99635517607
99635517609
99635517610

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Special Order item
99635530742
Product Information
Product Information
Brake pipe. Pre-charging pump to master cylinder.

porsche

Fits:
Porsche 996 C2 / C4 / 1999-2005 cars with PSM (option code: 476)
Porsche 996 Turbo 2001-05

Click 'Zoom in' for large parts diagram.
Diagram ref no 2

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99635530742
99635530742
99635530740

The product you are viewing cross references to these numbers
Special Order item
99735557501
Product Information
Product Information
Brake vacuum line, rear axle.

porsche

Fits:
Porsche 996 Turbo 2001-05
F 99-4S680 655>>
F 99-4S670 659>>
F 99-4S695 108>>

Porsche 996 GT3 1999-05
F 99-4S691 630>>

Porsche  997.1 Carrera 2005-08

Click 'Zoom in' for large parts diagram.
Diagram ref no 14

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

99735557501
99735557501
99735557500

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

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9963555849B
9963555849B

The product you are viewing cross references to these numbers
99635558702/1
Product Information
Product Information
Caliper Brake line - FRONT LEFT

front
Porsche 996 C4 / C4S 1999>> (M399 - All-wheel drive)
Porsche 996 turbo / turbo S

Diagram ref no 7

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

99635558702
99635558702

The product you are viewing cross references to these numbers
Special Order item
99635558702
Product Information
Product Information
Caliper Brake line - FRONT LEFT

front
Porsche 996 C4 / C4S 1999>> (M399 - All-wheel drive)
Porsche 996 Turbo / Turbo S

Diagram ref no 7

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

99635558702
99635558702

The product you are viewing cross references to these numbers
DISPLAYING 1 to 16 (of 30 products)
1 2
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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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