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Porsche > Cayenne 9PA1 (957) 2007-2010 > 957 Cayenne 3.6L 2007-10 > Heating / Air Conditioning >

Heater blowers

Heater blowers

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Coolant pump auxiliary heating. Porsche 955 / 957 / 958 Cayenne - 95557215005, 95557215007, 95857215009, 95857215010 - 7.06740.26.0
3
Coolant pump auxiliary heating. Porsche 955 / 957 / 958 Cayenne
95857215010/1
Product Information
Product Information

Coolant pump auxiliary heating. 

pierburg

Fits:
Porsche 955 Cayenne S / Cayenne turbo - 2003 to 2006
Porsche 957 Cayenne - 2007 to 2010 (Option codes 7VE, 7VL, 9AH, D5X, D5V, D5Z, 9M5, 9AH)
Porsche 958 Cayenne - 2010 to 2017 (Option Codes 9M1, 9M5, 9M9)

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



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Related, superseded, cross reference or alternative numbers for comparison.

95857215010
95557215005
95557215007
95857215009
95857215010

The product you are viewing cross references to these numbers
Coolant pump auxiliary heating. Porsche 955 / 957 / 958 Cayenne - 95557215005, 95557215007, 95857215009, 95857215010
3
Coolant pump auxiliary heating. Porsche 955 / 957 / 958 Cayenne
95857215010/2
Product Information
Product Information

Auxiliary Coolant Pump for Heating System

The auxiliary coolant pump for the Porsche 955, 957 and 958 Cayenne is a secondary electric water pump designed to support coolant circulation through the vehicle’s heating system. This pump ensures consistent coolant flow to the heater matrix, improving cabin heating performance and maintaining balanced engine temperature control.  This is a key component of the cooling and climate system, particularly in colder conditions and during idle operation.

Fits:

  • 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
957 -  Option codes 7VE, 7VL, 9AH, D5X, D5V, D5Z, 9M5, 9AH

  • Porsche 958 Cayenne V6 3.6L Petrol (300Hp) 2010-17
  • Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2010-17
  • Porsche 958 Cayenne S V6 3.0L Hybrid (380Hp) 2010-17
  • Porsche 958 Cayenne S V8 4.8L Petrol (400Hp) 2010-17
  • Porsche 958 Cayenne S V8 4.2L Diesel (382Hp) 2010-17
  • Porsche 958 Cayenne GTS V8 4.8L Petrol (400Hp) 2010-17
  • Porsche 958 Cayenne Turbo V8 4.8L Petrol (500Hp) 2010-17
  • Porsche 958 Cayenne Turbo S V8 4.8L Petrol (550Hp) 2010-17
958 -  Option Codes 9M1, 9M5, 9M9

Diagram ref no 24

What the Auxiliary Coolant Pump Does

Unlike the main engine-driven water pump, the auxiliary coolant pump operates electrically and assists with circulating coolant when required. It is responsible for:

  • Supplying hot coolant to the cabin heater core
  • Supporting even heat distribution inside the vehicle
  • Maintaining coolant flow at idle or low engine speeds
  • Assisting with temperature regulation in complex cooling systems
  • Improving warm-up efficiency

In Porsche Cayenne models equipped with advanced climate control systems, the auxiliary pump plays an important role in ensuring reliable heating performance.

Why Auxiliary Coolant Pumps Fail

Over time, the auxiliary coolant pump can fail due to:

  • Electrical motor wear
  • Internal bearing degradation
  • Coolant contamination
  • Heat cycling within the engine bay
  • Age-related plastic housing fatigue
  • Corrosion from coolant exposure

Because the pump operates electrically, failure may occur suddenly or gradually.

Common symptoms of a failing auxiliary coolant pump include:

  • Weak or inconsistent cabin heating
  • Heater blowing cold air at idle
  • Coolant circulation fault codes
  • Check engine or cooling system warning lights
  • Unusual noise from the cooling system
  • Coolant leaks around the pump housing

When You Should Replace the Auxiliary Coolant Pump

You should consider replacing the auxiliary coolant pump if:

  • Cabin heating performance becomes inconsistent
  • The vehicle struggles to maintain warm air at idle
  • Diagnostic fault codes indicate coolant circulation issues
  • The pump becomes noisy or stops functioning
  • You are servicing other cooling system components
  • The vehicle has high mileage and original cooling parts

Replacing the pump proactively helps maintain reliable heating performance and prevents strain on other cooling system components.

At Design911, we supply high-quality auxiliary coolant pumps engineered to meet OEM specifications. Designed for durability and reliable performance, this pump restores proper coolant circulation and heating efficiency.

Maintaining your Cayenne’s cooling and heating system is essential for both comfort and long-term engine reliability.

Key Benefits at a Glance

  • Direct replacement auxiliary coolant pump
  • Restores cabin heating efficiency
  • Maintains proper coolant circulation
  • Reduces risk of overheating or heater malfunction
  • Suitable for Porsche 955, 957 and 958 Cayenne
  • Ideal for repair or preventative cooling system maintenance       




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

95857215010
95557215005
95557215007
95857215009
95857215010

The product you are viewing cross references to these numbers
DISPLAYING 1 to 2 (of 2 products)
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About Heater blowers

Porsche Heater Blowers | Reliable Cabin Heating & Airflow Performance

Heater blowers are the driving force behind your Porsche’s cabin heating system. They circulate warm air through the interior vents, distributing heat evenly and ensuring rapid defrosting and demisting during colder conditions. A properly functioning heater blower guarantees consistent cabin comfort and visibility no matter the season.

At Design911, we supply high-quality heater blowers engineered to meet or exceed original performance standards. Built using robust motors, balanced impellers, and heat-resistant materials, our blowers ensure smooth operation, low noise, and long-lasting reliability across all Porsche models.

Whether you’re restoring an air-cooled 911 or maintaining a modern Porsche with advanced HVAC systems, our heater blowers deliver dependable airflow and efficient heating for optimal comfort and safety.

What Do Heater Blowers Do?

The heater blower is a key component of your Porsche’s heating and ventilation system, ensuring a steady flow of warm air into the cabin.

Core Functions:

  • Circulates warm air through the heater core and into the cabin.
  • Defrosts and demists windows for safe driving visibility.
  • Distributes airflow evenly through multiple vent settings.
  • Works in conjunction with the climate control system for temperature precision.
  • Enhances cabin comfort during cold weather or damp conditions.

Without a functioning heater blower, air circulation is limited, leading to poor heating performance, fogged windows, and reduced climate control efficiency.

Why Do Heater Blowers Fail or Degrade?

Over time, heater blowers are subject to constant use, heat, and debris exposure, which can cause electrical or mechanical wear.

Common Causes of Failure Include:

  • Worn or burnt-out blower motor.
  • Debris or dust buildup in the fan impeller.
  • Electrical connection corrosion or short circuits.
  • Seized bearings causing noise or vibration.
  • Faulty resistors or speed control modules.

When failure occurs, you may notice weak airflow, inconsistent heating, strange noises, or complete loss of ventilation.

Why Replace Your Porsche Heater Blower?

Replacing a worn or faulty blower motor restores full airflow, heating efficiency, and reliable window defrosting. Upgraded blowers provide smoother operation and improved energy efficiency.

Key Benefits:

  • Restores proper cabin heating and ventilation.
  • Ensures rapid window demisting and defrosting.
  • Reduces noise and vibration from worn components.
  • Improves overall climate control system performance.
  • Designed for Porsche 911, Cayman, Boxster, Panamera, Macan, Cayenne, and classic models.
  • Ideal for regular servicing, HVAC repairs, or full restorations.

Replacing a heater blower at the first sign of failure prevents secondary electrical strain and extends the life of your heating system.

Highlights

  • Precision-engineered Porsche heater blowers for reliable airflow.
  • Quiet, efficient, and durable motor construction.
  • Direct-fit replacements for all Porsche heating systems.
  • Compatible with both manual and automatic climate systems.
  • Improves cabin comfort, defrosting speed, and safety.
  • Perfect for maintenance, performance upgrades, and restorations.       

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