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Heater blowers
- Porsche 95B.1 Macan Petrol 2.0L (237Bhp) 2014-18
- Porsche 95B.1 Macan S Petrol 3.0L V6 (340Bhp) 2014-18
- Porsche 95B.1 Macan S Diesel 3.0L V6 (258Bhp) 2014-18
- Porsche 95B.1 Macan GTS Petrol 3.0L V6 (360Bhp) 2014-18
- Porsche 95B.1 Macan Turbo 3.6L V6 (400Bhp) 2014-18
- Porsche 95B.2 Macan Petrol 2.0L (245Bhp) 2019-21
- Porsche 95B.2 Macan S Petrol 3.0L V6 (354Bhp) 2019-21
- Porsche 95B.2 Macan GTS Petrol 2.9L V6 (380Bhp) 2019-21
- Porsche 95B.2 Macan Turbo 2.9L V6 (440Bhp) 2019-21
Fits:
Porsche 95B.1 Macan 2014 - 2018
Porsche 95B.2 Macan 2019>>
Diagram ref no 15
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PAB820521
The product you are viewing cross references to these numbers
- Porsche 95B.1 Macan Petrol 2.0L (237Bhp) 2014-18
- Porsche 95B.1 Macan S Petrol 3.0L V6 (340Bhp) 2014-18
- Porsche 95B.1 Macan S Diesel 3.0L V6 (258Bhp) 2014-18
- Porsche 95B.1 Macan GTS Petrol 3.0L V6 (360Bhp) 2014-18
- Porsche 95B.1 Macan Turbo 3.6L V6 (400Bhp) 2014-18
- Porsche 95B.2 Macan Petrol 2.0L (245Bhp) 2019-21
- Porsche 95B.2 Macan S Petrol 3.0L V6 (354Bhp) 2019-21
- Porsche 95B.2 Macan GTS Petrol 2.9L V6 (380Bhp) 2019-21
- Porsche 95B.2 Macan Turbo 2.9L V6 (440Bhp) 2019-21
Fits:
Porsche 95B.1 Macan 2014 - 2018
Porsche 95B.2 Macan 2019>>
Diagram ref no 15
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PAB820521
The product you are viewing cross references to these numbers
- Porsche 95B.1 Macan Petrol 2.0L (237Bhp) 2014-18
- Porsche 95B.1 Macan S Petrol 3.0L V6 (340Bhp) 2014-18
- Porsche 95B.1 Macan S Diesel 3.0L V6 (258Bhp) 2014-18
- Porsche 95B.1 Macan GTS Petrol 3.0L V6 (360Bhp) 2014-18
- Porsche 95B.1 Macan Turbo 3.6L V6 (400Bhp) 2014-18
- Porsche 95B.2 Macan Petrol 2.0L (245Bhp) 2019-21
- Porsche 95B.2 Macan S Petrol 3.0L V6 (354Bhp) 2019-21
- Porsche 95B.2 Macan GTS Petrol 2.9L V6 (380Bhp) 2019-21
- Porsche 95B.2 Macan Turbo 2.9L V6 (440Bhp) 2019-21
Fits:
Porsche 95B.1 Macan 2014 - 2018
Porsche 95B.2 Macan 2019>>
Diagram ref no 15
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PAB820521
The product you are viewing cross references to these numbers
- Porsche 95B.1 Macan Petrol 2.0L (237Bhp) 2014-18
- Porsche 95B.1 Macan S Petrol 3.0L V6 (340Bhp) 2014-18
- Porsche 95B.1 Macan S Diesel 3.0L V6 (258Bhp) 2014-18
- Porsche 95B.1 Macan GTS Petrol 3.0L V6 (360Bhp) 2014-18
- Porsche 95B.1 Macan Turbo 3.6L V6 (400Bhp) 2014-18
- Porsche 95B.2 Macan Petrol 2.0L (245Bhp) 2019-21
- Porsche 95B.2 Macan S Petrol 3.0L V6 (354Bhp) 2019-21
- Porsche 95B.2 Macan GTS Petrol 2.9L V6 (380Bhp) 2019-21
- Porsche 95B.2 Macan Turbo 2.9L V6 (440Bhp) 2019-21
This Porsche Genuine OE Heater / Air Con Blower (Part No. 8T2820021) is a factory-engineered climate control blower motor designed and manufactured to Porsche’s original equipment standards. This blower is specifically specified for Right-Hand Drive (RHD) versions of the Porsche 95B Macan.
Fits:
RHD (right-hand drive) cars only
Porsche 95B.1 Macan 2014 - 2018
Porsche 95B.2 Macan 2019 - 2021
Porsche 95B.3 Macan 2022>>
Diagram ref no 1
The heater / Air Con blower is a key component of the HVAC (Heating, Ventilation, and Air Conditioning) system. It circulates air through the climate control system - drawing in cabin or outside air and pushing it through the heater matrix, evaporator core, or vents as directed by the climate control unit. This blower ensures that temperature-conditioned air reaches every corner of the cabin, providing comfort to occupants regardless of conditions outside.
Functions & Technical Role
• Air circulation: Moves air through the HVAC system’s heater core or A/C evaporator
• Temperature comfort: Supports rapid cabin heating, cooling, and defogging
• Multi-speed performance: Works with the vehicle’s blower resistor/ECU for variable airflow control
• Noise-optimised design: Porsche-tuned acoustics for minimal cabin noise at all blower speeds
• OEM quality and fit: Designed for exact mounting, electrical connection and airflow pathways in RHD Macan
Fitment / Position on Car
• Installed on: Interior of the HVAC unit, usually behind the dashboard
• Location: Mounted inside the blower housing, feeding conditioned air into the cabin ducting
• Connection: Bolts to HVAC bracket and plugs into factory wiring harness
A functioning HVAC blower is essential not just for comfort (heating and cooling) but also for safety - ensuring clear visibility through effective defrost/defog operation. A worn or failing blower can result in weak airflow, inconsistent temperature delivery, or excessive noise. Choosing a genuine Porsche OE blower guarantees correct fitment, proper airflow speed ranges, and integration with vehicle electronics.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
8T2820021
The product you are viewing cross references to these numbers
- Porsche 95B.1 Macan Petrol 2.0L (237Bhp) 2014-18
- Porsche 95B.1 Macan S Petrol 3.0L V6 (340Bhp) 2014-18
- Porsche 95B.1 Macan S Diesel 3.0L V6 (258Bhp) 2014-18
- Porsche 95B.1 Macan GTS Petrol 3.0L V6 (360Bhp) 2014-18
- Porsche 95B.1 Macan Turbo 3.6L V6 (400Bhp) 2014-18
- Porsche 95B.2 Macan Petrol 2.0L (245Bhp) 2019-21
- Porsche 95B.2 Macan S Petrol 3.0L V6 (354Bhp) 2019-21
- Porsche 95B.2 Macan GTS Petrol 2.9L V6 (380Bhp) 2019-21
- Porsche 95B.2 Macan Turbo 2.9L V6 (440Bhp) 2019-21
This OE Match Heater / Air Con Blower is a direct-fit replacement blower motor designed for the heating, ventilation & air conditioning (HVAC) system in right-hand drive (RHD) Porsche 95B Macan models. This unit circulates air through the cabin, delivering warm or cold airflow as directed by the climate control system.
Fits:
RHD (right-hand drive) cars only
Porsche 95B.1 Macan 2014 - 2018
Porsche 95B.2 Macan 2019 - 2021
Porsche 95B.3 Macan 2022>>
Diagram ref no 1
The blower motor draws air from outside or the cabin interior and pushes it through the HVAC system’s heater core and A/C evaporator. It then forces conditioned air into the cabin vents to regulate temperature and ensure comfort. A strong, reliable blower is vital for effective demisting/defrosting, climate comfort, and rapid temperature adjustment.
Function
• Circulates cabin airflow through heater core and A/C evaporator.
• Supports climate control operation, whether heating in cold weather or cooling in summer.
• Enhances defrost/demist performance for clear visibility.
Over time, blower motors can suffer from worn brushes, seized bearings, reduced airflow, or electrical issues - leading to weak cabin airflow, uneven heating/cooling, or noisy operation. Replacing a failing blower with an OE Match part restores proper HVAC performance, improves passenger comfort, and ensures effective climate control operation, especially in extreme weather or when demisting windows.
Replace the HVAC blower if you notice any of the following:
• Weak airflow from vents
• No airflow in any fan speed setting
• Loud or unusual blower noise
• Intermittent blower function
• Burning smell when blower is engaged
• Failed HVAC diagnostics
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
8T2820021
The product you are viewing cross references to these numbers
- Porsche 95B.1 Macan Petrol 2.0L (237Bhp) 2014-18
- Porsche 95B.1 Macan S Petrol 3.0L V6 (340Bhp) 2014-18
- Porsche 95B.1 Macan S Diesel 3.0L V6 (258Bhp) 2014-18
- Porsche 95B.1 Macan GTS Petrol 3.0L V6 (360Bhp) 2014-18
- Porsche 95B.1 Macan Turbo 3.6L V6 (400Bhp) 2014-18
- Porsche 95B.2 Macan Petrol 2.0L (245Bhp) 2019-21
- Porsche 95B.2 Macan S Petrol 3.0L V6 (354Bhp) 2019-21
- Porsche 95B.2 Macan GTS Petrol 2.9L V6 (380Bhp) 2019-21
- Porsche 95B.2 Macan Turbo 2.9L V6 (440Bhp) 2019-21
This MAHLE heater / air conditioning blower motor is a high-quality aftermarket interior blower designed to replace Porsche OEM part 8T2820021 specifically for right-hand drive (RHD) Macan vehicles. This blower motor is a core component of the HVAC (heating, ventilation, and air conditioning) system that circulates conditioned air through the cabin, ensuring consistent airflow for heating and cooling functions.
Fits:
RHD (right-hand drive) cars only
Porsche 95B.1 Macan 2014 - 2018
Porsche 95B.2 Macan 2019 - 2021
Porsche 95B.3 Macan 2022>>
Diagram ref no 1
Built to MAHLE’s exacting quality standards, the unit delivers reliable airflow performance and long service life, making it an ideal choice for replacing worn, noisy, or failed blower motors in Porsche Macan 95B models. The blower fits perfectly in RHD vehicles and works with the original climate control system to restore proper passenger comfort.
Function
• Circulates cabin airflow through heater core and A/C evaporator.
• Supports climate control operation, whether heating in cold weather or cooling in summer.
• Enhances defrost/demist performance for clear visibility.
The blower motor is responsible for moving air from the heater core, evaporator, or fresh air inlet into the cabin. Over time the motor can wear, become noisy, or fail entirely, leading to reduced airflow and compromised HVAC performance. Replacing it with a MAHLE unit restores consistent airflow and helps maintain cabin climate comfort.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
8T2820021
The product you are viewing cross references to these numbers
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.