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Additional center coolant radiator. Porsche 9YA Cayenne 3.0L / 4.0L Hybrid 2018>> - PAB145804
PAB145804
Vehicle Group
- Porsche 9YA Cayenne E-Hybrid V6 3.0L V6 (340Hp) 2018-23
- Porsche 9YA Cayenne Coupe E-Hybrid V6 3.0L (340Hp) 2020-23
- Porsche 9YA Cayenne Turbo S E-Hybrid V8 4.0L (550Hp) 2019-23
- Porsche 9YA Cayenne Coupe Turbo S E-Hybrid V8 4.0L (550Hp) 2020-23
- Porsche 9YA.2 Cayenne E-Hybrid V6 3.0L (470Hp) 2023>>
- Porsche 9YA.2 Cayenne E-Hybrid Coupe V6 3.0L (470Hp) 2023>>
- Porsche 9YA.2 Cayenne S E-Hybrid V6 3.0L (519Hp) 2023>>
- Porsche 9YA.2 Cayenne S E-Hybrid Coupe V6 3.0L (519Hp) 2023>>
- Porsche 9YA.2 Cayenne GTS V8 4.0L Bi-Turbo Petrol 2023>>
- Porsche 9YA.2 Cayenne GTS Coupe V8 4.0L Bi-Turbo 2023>>
Information
Additional center coolant radiator
The Porsche Genuine OE Additional Center Coolant Radiator (PAB145804) is a specific auxiliary cooling component designed to manage excess heat in hybrid-assisted Cayenne 9YA models. It enhances the ability of the cooling system to regulate coolant temperature during heavy engine load or hybrid system operation - contributing to efficient engine performance and longevity through improved thermal management.
Fits:
Porsche 9YA (E3) Cayenne 3.0L / 4.0L Hybrid 2018 - 2024
Porsche 9YA.2 (E3 PA) Cayenne 3.0L Hybrid 2023 >>
Diagram ref no 1
This additional center coolant radiator functions as a supplementary heat exchanger in the engine’s cooling system. It helps dissipate excess heat from the engine coolant, reducing overall operating temperature and relieving load on the primary radiator - particularly under higher thermal loads seen in hybrid-assisted or high-performance operation. By improving coolant temperature control, it supports optimal combustion efficiency, long-term durability, and consistent engine performance.
Applications
• Cooling system repair: Replace a damaged or failed auxiliary radiator component
• Performance reliability: Add or restore cooling capacity to support hybrid engine thermal loads
• Factory-standard restoration: Use when rebuilding or fully servicing cooling circuits
• Preventative maintenance: Install as part of coolant system servicing for consistent temperature control
Fitment / Position on Car
• Installed on: Engine bay, mounted centrally as part of the coolant heat-exchange system
• Location: Integrated with front cooling network alongside main radiator cores and intercoolers
• Connection: Works within the standard coolant piping and hose routing for the Cayenne 9YA hybrid platform
Modern performance and hybrid engines, such as those found in the Cayenne 9YA, generate additional heat due to electric motor assist, turbocharging, and high output demands. An auxiliary radiator increases total cooling surface area, helping prevent overheating, reduce thermal stress on primary components, and maintain consistent performance both in everyday driving and demanding conditions. Choosing a genuine Porsche OE cooling radiator means getting the exact specification, durability, and fitment that Porsche engineers designed for your vehicle’s thermal system
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PAB145804
The product you are viewing cross references to these numbers
The Porsche Genuine OE Additional Center Coolant Radiator (PAB145804) is a specific auxiliary cooling component designed to manage excess heat in hybrid-assisted Cayenne 9YA models. It enhances the ability of the cooling system to regulate coolant temperature during heavy engine load or hybrid system operation - contributing to efficient engine performance and longevity through improved thermal management.
Fits:
Porsche 9YA (E3) Cayenne 3.0L / 4.0L Hybrid 2018 - 2024
Porsche 9YA.2 (E3 PA) Cayenne 3.0L Hybrid 2023 >>
Diagram ref no 1
This additional center coolant radiator functions as a supplementary heat exchanger in the engine’s cooling system. It helps dissipate excess heat from the engine coolant, reducing overall operating temperature and relieving load on the primary radiator - particularly under higher thermal loads seen in hybrid-assisted or high-performance operation. By improving coolant temperature control, it supports optimal combustion efficiency, long-term durability, and consistent engine performance.
Applications
• Cooling system repair: Replace a damaged or failed auxiliary radiator component
• Performance reliability: Add or restore cooling capacity to support hybrid engine thermal loads
• Factory-standard restoration: Use when rebuilding or fully servicing cooling circuits
• Preventative maintenance: Install as part of coolant system servicing for consistent temperature control
Fitment / Position on Car
• Installed on: Engine bay, mounted centrally as part of the coolant heat-exchange system
• Location: Integrated with front cooling network alongside main radiator cores and intercoolers
• Connection: Works within the standard coolant piping and hose routing for the Cayenne 9YA hybrid platform
Modern performance and hybrid engines, such as those found in the Cayenne 9YA, generate additional heat due to electric motor assist, turbocharging, and high output demands. An auxiliary radiator increases total cooling surface area, helping prevent overheating, reduce thermal stress on primary components, and maintain consistent performance both in everyday driving and demanding conditions. Choosing a genuine Porsche OE cooling radiator means getting the exact specification, durability, and fitment that Porsche engineers designed for your vehicle’s thermal system
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PAB145804
PAB145804
The product you are viewing cross references to these numbers
Price: £650.27
Orderable
Related products
Vehicle Group
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche Boxster 981 Spyder 3.8L 2016
- Porsche 991.1 Carrera C2 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Carrera C4 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C4S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S / GTS 3.4L 981 2013-16
- Porsche Cayman GT4 3.8L 2015-16
Information
Radiator fluid, or coolant, is the most important part of your car's cooling system, which protects your engine from overheating. Low coolant can lead to a breakdown and expensive repairs.
Fits:
Porsche 981 Boxster 2012 - 2016
Porsche 981SP Boxster Spyder 2016
Porsche 981C Cayman 2013 - 2016
Porsche 981C Cayman GT4 2016
Porsche 991.1 Carrera 2012 - 2016
Diagram ref no 1
The radiator functions as the primary heat exchanger in the vehicle’s cooling system. Coolant heated by the engine flows through the radiator’s tubes and fins, where it relinquishes heat to the surrounding air as it passes through. This heat transfer process is essential to prevent overheating, maintain ideal combustion conditions, protect internal engine components, and ensure consistent performance.
Function:
• Dissipates thermal energy from engine coolant via a network of tubes and cooling fins
• Works with the cooling fan and shroud assembly to optimise airflow and cooling efficiency
• Maintains stable engine operating temperatures under varying load and ambient conditions
• Ensures long-term reliability and protects the engine from heat-related wear or damage.
Genuine Porsche radiators are constructed from durable materials designed to withstand constant temperature changes, road vibration, and corrosion, ensuring sustained performance over time.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99110613
The product you are viewing cross references to these numbers
Fits:
Porsche 981 Boxster 2012 - 2016
Porsche 981SP Boxster Spyder 2016
Porsche 981C Cayman 2013 - 2016
Porsche 981C Cayman GT4 2016
Porsche 991.1 Carrera 2012 - 2016
Diagram ref no 1
The radiator functions as the primary heat exchanger in the vehicle’s cooling system. Coolant heated by the engine flows through the radiator’s tubes and fins, where it relinquishes heat to the surrounding air as it passes through. This heat transfer process is essential to prevent overheating, maintain ideal combustion conditions, protect internal engine components, and ensure consistent performance.
Function:
• Dissipates thermal energy from engine coolant via a network of tubes and cooling fins
• Works with the cooling fan and shroud assembly to optimise airflow and cooling efficiency
• Maintains stable engine operating temperatures under varying load and ambient conditions
• Ensures long-term reliability and protects the engine from heat-related wear or damage.
Genuine Porsche radiators are constructed from durable materials designed to withstand constant temperature changes, road vibration, and corrosion, ensuring sustained performance over time.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99110613
99110613103
99110613203
The product you are viewing cross references to these numbers
Prices from: £567.15
Vehicle Group
- Porsche Boxster 981 2.7L 2012-16
- Porsche 991.1 Carrera C2 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche Cayman 2.7L 981 2013-16
Information
Radiator water fan.
Fits:
Porsche 991 C2 / C2S 2012>>
Porsche 981 Boxster 2.7L 2012>>
Porsche 981C Cayman 2.7L 2013>> (I008)
Click 'Zoom in' for large parts diagram.
Diagram ref no 2
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99162493902
The product you are viewing cross references to these numbers
Fits:
Porsche 991 C2 / C2S 2012>>
Porsche 981 Boxster 2.7L 2012>>
Porsche 981C Cayman 2.7L 2013>> (I008)
Click 'Zoom in' for large parts diagram.
Diagram ref no 2
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99162493902
99162493902
99162493901
The product you are viewing cross references to these numbers
Price: £463.71
Orderable
Vehicle Group
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche Boxster 718 2.0L Manual (300 Bhp) 2017>>
- Porsche Boxster 718 2.0L PDK (300 Bhp) 2017>>
- Porsche Boxster S 718 2.5L Manual (350 Bhp) 05/2017>>
- Porsche Boxster S 718 2.5L PDK (350 Bhp) 05/2017>>
- Porsche Boxster T 718 2.0L Manual (300 Bhp) 01/2019>>
- Porsche Boxster T 718 2.0L PDK (300 Bhp) 01/2019>>
- Porsche Boxster GTS 718 2.5L Manual (365 Bhp) 05/2017>>
- Porsche Boxster GTS 718 2.5L PDK (365 Bhp) 05/2017>>
- Porsche 991.1 Carrera C2 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Carrera C4 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C4S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S / GTS 3.4L 981 2013-16
- Porsche Cayman 718 2.0L Manual (300 Bhp)
- Porsche Cayman 718 2.0L PDK (300 Bhp)
- Porsche Cayman S 718 2.5L Manual (350 Bhp)
- Porsche Cayman S 718 2.5L PDK (350 Bhp)
- Porsche Cayman T 718 2.0L Manual (300 Bhp)
- Porsche Cayman T 718 2.0L PDK (300 Bhp)
- Porsche Cayman GTS 718 2.5L Manual (365 Bhp)
- Porsche Cayman GTS 718 2.5L PDK (365 Bhp)
Information
Radiator water / coolant - centre.
Fits:
Porsche 981 Boxster / Cayman
Porsche 718 Boxster / Cayman 2.0ltr / 2.5ltr
Porsche 991.1 Carrera / Carrera S
Porsche 991.1 Carrera 4 / Carrera 4S
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99110613702
The product you are viewing cross references to these numbers
Fits:
Porsche 981 Boxster / Cayman
Porsche 718 Boxster / Cayman 2.0ltr / 2.5ltr
Porsche 991.1 Carrera / Carrera S
Porsche 991.1 Carrera 4 / Carrera 4S
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99110613702
99110613702
99110613701
The product you are viewing cross references to these numbers
Price: £616.69
Orderable