Heater blowers
Fits:
Porsche 964 1989-94
Porsche 993 1995-98
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Diagram ref no 13.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96462433800
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Fits:
Porsche 964 1989-94
Porsche 993 1995-98
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Diagram ref no 7.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96421132303
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97

Fits:
Porsche 964 1989-94
Porsche 993 1994-98
Diagram ref no 10
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96461655002
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Fits:
Porsche 964 1989-94
Porsche 993 1995-98
Click 'Zoom in' for large parts diagram.
Diagram ref no 6
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96421131102
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97

Fits:
Porsche 993 Turbo 1994-98
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Diagram ref no 21
Related reference numbers
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99321131250
The product you are viewing cross references to these numbers
- Porsche 993 (911) TURBO 1994-96
Fits:
Porsche 964 1989-94
Porsche 993 1994-98
Porsche 968 1992-95
Porsche 944 1989-91
Diagram ref no 12
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96465912001
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- Porsche 968 3.0L 1992-94
- Porsche 968 Sport 3.0L 1994-95
- Porsche 968 CS 3.0L 1993-95
- Porsche 968 Turbo S 3.0L 1993-94
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.