Turbo Chargers / Intercoolers & Parts

Diesel Turbocharger Actuator

This turbocharger actuator is designed for the Porsche Cayenne 3.0ltr diesel engine fitted to the 957 and 958 generation models. The actuator plays a critical role in controlling turbo boost pressure by regulating the turbocharger’s variable geometry system.

Fits:
Porsche 957 Cayenne 3.0L Diesel 2007-10
Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2010-17

Fits to diagram ref no 5 Diagram ref no 1

Modern turbo diesel engines rely on precise boost control to deliver efficient performance, strong torque and optimal fuel economy. A failing turbo actuator can significantly affect engine performance and trigger warning lights or limp mode.

What the Turbocharger Actuator Does

The turbo actuator controls the position of the turbocharger vanes or wastegate mechanism. It adjusts the amount of exhaust gas flowing through the turbocharger to regulate boost pressure.

This allows the engine to:

• Deliver strong acceleration and torque
• Maintain efficient combustion and fuel economy
• Prevent excessive boost pressure that could damage engine components
• Provide smooth power delivery across the rev range

The actuator communicates with the engine control unit to constantly adjust turbo boost depending on engine load and driving conditions.

Why Turbo Actuators Fail

Turbo actuators operate in extremely harsh conditions near the turbocharger where high heat and constant movement are present. Over time this can cause internal components to wear or fail.

Common causes of failure include:

Electrical motor or sensor failure
The actuator contains electronic components that can fail due to heat exposure.

Carbon buildup in the turbo mechanism
Soot deposits can restrict the movement of turbo vanes, causing excessive strain on the actuator.

Internal gear wear
Mechanical wear inside the actuator can cause inaccurate positioning of the turbo vanes.

Heat damage
Prolonged exposure to turbocharger heat can degrade actuator components.

Symptoms of a Faulty Turbo Actuator

• Loss of engine power or poor acceleration
• Turbo boost errors or warning lights
• Engine entering limp mode
• Inconsistent turbo performance
• Fault codes relating to boost pressure control
• Increased fuel consumption

Replacing a faulty turbo actuator restores proper boost regulation and helps return the engine to its intended performance levels.

Why You May Need to Replace the Turbo Actuator

Restore Turbo Performance
A new actuator allows the turbocharger to operate correctly and deliver the expected engine power.

Prevent Engine Management Faults
Replacing a failing actuator can resolve boost control fault codes and warning lights.

Improve Fuel Efficiency
Proper turbo boost control helps the engine run efficiently and maintain optimal fuel consumption.

Avoid Further Turbocharger Damage
A malfunctioning actuator can place strain on the turbocharger mechanism if left unresolved. 

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95512302500

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Clamp (40 - 60 x 12) for intercooler pressure pipe.
The Porsche Genuine OE clamp (Part No. N10518801 / N10-518-801) is an original equipment fastener clamp specifically designed to secure intercooler pressure pipes and hoses, is used on multiple Porsche models with turbocharged engines, where OE intercooler piping uses this specific clamp style.
Sold individually

Fits:
Porsche 955 Cayenne 4.5L V8 2003 - 2006 (D9L)
Porsche 957 Cayenne 4.8L >> 2008 (D5Z)
Porsche 957 Cayenne 3.0L Diesel 2007 - 2010 (D50)
Porsche 958 Cayenne 3.0L 2014 - 2018
Porsche 958 Cayenne 3.0L Diesel >> 2011
Porsche 9YA Cayenne 3.0L V6 2018 - 2024
Porsche 9YA.2 Cayenne 3.0L V6 2023 >>

Porsche 95B.1 Macan 2.0L 2014 - 2018
Porsche 95B.2 Macan 2.0L 2019 >> (T2G)

Porsche 970 Panamera 4.8L 2010 - 2016

Diagram ref no 13

This clamp’s primary job is to secure intercooler pressure pipes and hoses that carry boosted (pressurised) intake air between the turbocharger, intercooler, and intake manifold. It prevents hose slip or separation under high boost and pressure cycles, preserving correct turbocharging performance and helping maintain optimal engine efficiency and driveability. A secure, correct clamp also helps prevent boost leaks that can cause loss of power, poor throttle response, or diagnostic faults.

Fitment / Position on Car
•  Installed on: Intercooler pressure/boost pipes and hose connections
•  Location: Between turbocharger, intercooler core(s), and intake manifold junctions
•  Assembly role: Works with O-rings, hose ends, and pipes to form a secure, pressurised air path

Intercooler pressure pipes are subject to high boost pressures, heat cycles, and vibration. The clamps used to secure these pipes must hold reliably under all conditions - a failure here can result in boost leaks, reduced power, drivability issues, or even engine error codes. Using a genuine Porsche OE clamp like N10518801 ensures the correct clamp diameter, spring tension, and material quality specified by Porsche engineers, preserving performance and reliability.

Related reference numbers
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N10518801

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Intercooler sealing ring. Upper hose


Fits:
Porsche 957 Cayenne 3.0L V6 DIESEL 2007-10
Porsche 958 Cayenne 3.0L V6 DIESEL 2011-18

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

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95511051700

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Intercooler sealing ring. Bottom hose


Fits:
Porsche 957 Cayenne 3.0L V6 DIESEL 2007-10
Porsche 958 Cayenne 3.0L V6 DIESEL 2011-18

Click 'Zoom in' for large parts diagram.
Diagram ref no 24

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95511051710

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Intercooler To Turbo Pressure Coupling Hose.
x1 Hose Clamp 50-70x12 Included.

Fits:
Porsche 92A Cayenne (958) 3.0L V6 Diesel 2010>>2011
Porsche 9PA1 Cayenne (957) 3.0L V6 Diesel 2007>>2010

Diagram Ref No 35 (Diagram Ref No 36 Included)

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Mounting Kit, charger.



Fits:
Porsche Cayenne (955) 3.0 TDI 02/09-09/10

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95512302500

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Radiator intercooler.



Fits:
Porsche 957 Cayenne 3.0L DIESEL
Porsche 958 Cayenne 3.0L DIESEL

Click 'Zoom in' for large parts diagram.
Diagram ref no 1 (LEFT) and 2 (RIGHT)

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9551106

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Radiator Intercooler.
The OE Match Radiator Intercooler is a high-quality replacement charge air cooling component designed for turbocharged Porsche applications. Engineered to OE specifications for fit, performance and durability, this intercooler reduces the temperature of compressed air generated by the turbocharger before it enters the engine, helping to maximise power output, combustion efficiency and overall engine reliability.

Fits:

• Porsche 957 Cayenne 3.0L Diesel 2007-10
• Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2010-17 

Diagram Ref No 1 (LEFT) And 2 (RIGHT)

Featuring a precision-manufactured cooling core and durable end tank construction, the intercooler efficiently dissipates heat from the charge air system. By delivering cooler, denser intake air to the engine, it helps maintain consistent boost performance and supports the responsive driving characteristics expected from a Porsche vehicle.  

What This Product Does:

• Cools compressed air from the turbocharger before it enters the engine.
• Increases intake air density for improved combustion efficiency.
• Supports optimum engine power and torque output.
• Helps maintain consistent boost pressure performance.
• Reduces intake air temperatures during demanding driving conditions.
• Improves turbocharger system efficiency.
• Enhances throttle response and engine reliability.
• Contributes to overall engine thermal management.

Symptoms Of Wear Or Failure:

• Reduced engine power and acceleration.
• Loss of turbocharger boost pressure.
• Sluggish throttle response.
• Increased fuel consumption.
• Hissing noises caused by boost leaks.
• Excessive black exhaust smoke under acceleration.
• Engine management warning lights.
• Oil residue around intercooler pipe connections.
• Visible corrosion, impact damage or cracking of the intercooler core.
• Fault codes relating to intake air pressure or boost system performance.

Why Replacement Matters:

• Intercoolers operate under demanding conditions and are continuously exposed to high-pressure intake air, temperature fluctuations, moisture, road debris and environmental contamination. Over time, the cooling core may become damaged, corroded or develop leaks that reduce cooling efficiency and compromise boost pressure retention.
• A failing intercooler can allow compressed air to escape, reducing engine performance and forcing the turbocharger to work harder to achieve target boost levels. Higher intake air temperatures can negatively affect combustion efficiency, fuel economy and engine longevity. Continued operation with a damaged intercooler may place additional strain on the turbocharger and associated intake system components.
• Replacing a worn or damaged intercooler restores efficient charge air cooling, maintains boost pressure integrity and helps preserve engine performance. An OE Match replacement provides factory-style fitment, effective heat dissipation and long-term durability, ensuring your Porsche continues to deliver optimum power, efficiency and reliability.

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95814580

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Maintain optimum turbocharged engine performance with these Genuine Porsche Charge Air Coolers, part numbers 958145803A (Left) and 958145804A (Right), designed for Porsche Cayenne 958 models equipped with the 3.0-litre Diesel engine. These factory-original intercoolers are engineered to cool compressed intake air from the turbocharger before it enters the engine, ensuring maximum power delivery, improved combustion efficiency and consistent performance under all driving conditions.

Fits:
Porsche 957 Cayenne 3.0L DIESEL
Porsche 958 Cayenne 3.0L DIESEL

Diagram ref no 1 (LEFT) and 2 (RIGHT)

As genuine Porsche components, these charge air coolers are manufactured to exact OE specifications, providing perfect fitment, superior cooling efficiency and long-term reliability. Replacing a damaged or leaking intercooler can restore lost performance, improve throttle response and help prevent excessive engine temperatures associated with reduced charge-air cooling efficiency. Porsche identifies 958145803A as the left-hand charge air cooler, with the matching 958145804A serving the right-hand side on applicable Cayenne 958 diesel models.

Features:

• Genuine Porsche OE parts Part numbers: 958145803A (Left) & 958145804A (Right) 
• Designed for Porsche Cayenne 958 3.0 Diesel models 
  Factory-engineered cooling performance
  Direct replacement for original intercoolers 
  Restores efficient charge-air cooling
  Helps maintain engine power and fuel efficiency 
  
• Factory-engineered cooling performance
• Direct replacement for original intercoolers 
• Restores efficient charge-air cooling
• Helps maintain engine power and fuel efficiency 
• Precision fit and OE-quality construction
• Designed for long service life and reliability  

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95814580

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Fits:
Porsche 957 Cayenne 3.0L V6 DIESEL 2007-10
Porsche 958 Cayenne 3.0L V6 DIESEL 2011

Click 'Zoom in' for large parts diagram.
Diagram ref no 16

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Fits:
Porsche 957 Cayenne 3.0L V6 DIESEL 2009-10
Porsche 958 Cayenne 3.0L V6 DIESEL 2011-14
Porsche 970 Panamera 3.0L V6 DIESEL 2011-14

Click 'Zoom in' for large parts diagram.
Diagram ref no 13

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Fits:
Porsche 957 Cayenne 3.0L V6 DIESEL 2009-10
Porsche 958 Cayenne 3.0L V6 DIESEL 2011-14
Porsche 970 Panamera 3.0L V6 DIESEL 2011-14

Click 'Zoom in' for large parts diagram.
Diagram ref no 13

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Fits:
Porsche 957 Cayenne 3.0L DIESEL 2009-10
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Click 'Zoom in' for large parts diagram.
Diagram ref no 8

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Fits:
Porsche 957 Cayenne 3.0L DIESEL 2009-10
Porsche 958 Cayenne 3.0L DIESEL 2011

Click 'Zoom in' for large parts diagram.
Diagram ref no 8

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Fits:
Porsche Cayenne (92A) 3.0 TDI  06/2010 - 05/2011
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