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95535557805
Product Information
Product Information

Brake Booster Vacuum Line, For Right Hand Drive (RHD).
The Porsche Brake Booster Vacuum Line is a genuine replacement vacuum pipe designed for right-hand-drive Porsche Cayenne models.

Fits:

  • Porsche 955 Cayenne 3.2L V6 2003-06
  • Porsche 955 Cayenne S 4.5L V8 2003-06
  • Porsche 955 Cayenne Turbo 4.5L 2003-06
  • Porsche 955 Cayenne Turbo S 4.5L 2006>>
  • Porsche 957 Cayenne 3.0L Diesel 2007-10
  • Porsche 957 Cayenne 3.6L 2007-10
  • Porsche 957 Cayenne S / GTS 4.8L 2007-10
  • Porsche 957 Cayenne Turbo / Turbo S 4.8L 2007-10  

Diagram Ref No 13

The line forms part of the brake servo system, carrying vacuum to the brake booster so that additional assistance can be applied when the driver presses the brake pedal.

A properly sealed vacuum line is essential for maintaining effective brake assistance. If the original pipe becomes cracked, damaged or develops a leak, the brake booster may not receive sufficient vacuum, resulting in increased pedal effort and reduced braking assistance.

This genuine Porsche replacement restores the correct vacuum connection and factory routing within the braking system.

What This Product Does:
The brake booster, also known as the brake servo, uses vacuum assistance to reduce the amount of physical force required from the driver when applying the brakes.

The vacuum line provides the connection through which vacuum reaches the brake booster.

Its primary functions include:

  • Supplying vacuum to the brake booster
  • Maintaining a sealed vacuum circuit
  • Supporting power-assisted braking
  • Reducing the amount of pedal effort required during braking
  • Helping provide consistent brake pedal assistance
  • Maintaining the correct factory routing of the vacuum system
  • Connecting the brake servo to the relevant vacuum supply components

The vacuum line does not create braking pressure itself. Instead, it allows the brake booster to assist the hydraulic braking system.

Symptoms Of Wear Or Failure:
Vacuum lines can deteriorate through age, engine-bay heat, vibration and repeated pressure changes.

Common symptoms of a damaged or leaking brake booster vacuum line include:

  • Brake pedal becoming unusually hard
  • Increased effort required to stop the vehicle
  • Reduced brake servo assistance
  • Brakes feeling normal initially but becoming harder after repeated applications
  • Hissing or sucking noise when the brake pedal is pressed
  • Audible vacuum leak from the engine compartment
  • Cracks or splits in the vacuum pipe
  • Damaged or loose connections
  • Vacuum hose becoming brittle or hardened
  • Physical damage to the line
  • Brake booster performance becoming inconsistent
  • Vacuum-related fault codes where monitored by the vehicle
  • Poor sealing around vacuum-line connections

A hard brake pedal can also be caused by a faulty brake booster, vacuum pump, non-return valve or related vacuum-system component, so correct diagnosis is recommended before replacement.

Why Replacement Matters:
The brake booster significantly reduces the physical effort required to apply the brakes.

If the vacuum line leaks or becomes disconnected, the booster may not receive enough vacuum to provide normal assistance. The hydraulic braking system may still operate, but substantially more pedal force can be required from the driver.

This can make the vehicle more difficult to stop comfortably and predictably, particularly during emergency braking or repeated brake applications.

A vacuum leak can also prevent the brake servo from storing or maintaining sufficient vacuum between braking events.

Replacing a damaged vacuum line helps restore:

  • Correct brake booster vacuum supply
  • Normal power-assisted braking
  • Consistent brake pedal effort
  • Reliable brake servo operation
  • Proper sealing of the vacuum circuit
  • Factory-correct hose routing and connections

Because this component forms part of the braking assistance system, cracks, leaks or damaged connections should not be ignored.



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