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Water / Coolant Radiators

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DISPLAYING 17 to 32 (of 52 products)
1 2 3 4
Special Order item
99110654601
Product Information
Product Information
Blanking plug / bung for water radiator.

Fits:
Porsche 981 Boxster 2012-16
Porsche 981SP Boxster Spyder 2016
Porsche 982 Boxster 2017>>
Porsche 981C Cayman 2012-16
Porsche 981 Cayman GT4 2016
Porsche 982C Cayman 2017>>
Porsche 991.1 Carrera 2012-16
Porsche 991.2 Carrera 2017-19
Porsche 991 GT3 4.0L 2013-17

Click 'Zoom in' for large parts diagram.
Diagram ref no 23

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99110654601

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99110635503
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Captive nut, metal - fits the bottom edge of the front radiator fan console. 

Sold individually; four required per vehicle. 

Accompanied by M8 x 25 bolt - part number N0195307.

Fits:
Porsche 981 Boxster / S 2012-16
Porsche 981 Cayman / S 2013-16
Porsche 981 Boxster Spyder 2016
Porsche 981 Cayman GT4 2016
--
Porsche 718 (982) Boxster / Cayman / S 2017>>
Porsche 718 (982) Boxster Spyder 2019>>
Porsche 718 (982) Cayman GT4 2019>>
--
Porsche 991 Carrera / S 2012-19
Porsche 991 Turbo / GT2 RS 2014-20
Porsche 991 GT3 / GT3 RS 2014-21


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99110635503
99110635502
N0195307

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Special Order item
99110653802
Product Information
Product Information
Centre radiator lower rubber mounting. Sold each.

Fits:
Porsche 981 Boxster / Boxster Spyder 2012-16
Porsche 981C Cayman / Cayman GT4 2012-16
Porsche 982 (718) Boxster 2017>>
Porsche 982C (718C) Cayman 2017>>
Porsche 991.1 2012-16
Porsche 991.2 2017>>

Click 'Zoom in' for large parts diagram,
Diagram ref no 5

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99110653802
99110653802

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Special Order item
99110633701
Product Information
Product Information
Centre radiator sealing frame.

Fits:
Porsche 981 Boxster 2012-16
Porsche 981C Cayman 2012-16
Porsche 982 (718) Boxster 2017>>
Porsche 982C (718C) Cayman 2017>>
Porsche 991.1 Carrera 2012-16
Porsche 991.2 Carrera 2017>>

Click 'Zoom in' for large parts diagram,
Diagram ref no 3

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99110633701
99110633701

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Special Order item
99110653701
Product Information
Product Information
Centre radiator upper rubber mounting. Sold each.

Fits:
Porsche 981 Boxster / Boxster Spyder 2012-16
Porsche 981C Cayman / Cayman GT4 2012-16
Porsche 982 (718) Boxster 2017>>
Porsche 982C (718C) Cayman 2017>>
Porsche 991.1 2012-16
Porsche 991.2 2017>>

Click 'Zoom in' for large parts diagram,
Diagram ref no 4

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99110653701
99110653701

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99110613
Product Information
Product Information
Engine radiator.
A high-quality replacement radiator manufactured to closely match Porsche’s original equipment specification. It serves as a coolant heat exchanger that helps maintain proper engine operating temperature by transferring heat from the engine’s coolant to the surrounding air.

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 circulates hot engine coolant through its cooling fins and tubes, allowing excess heat to dissipate into the air as it passes through. This cooling process keeps the engine within its optimal temperature range, preventing overheating and helping sustain performance, efficiency, and long-term reliability - especially under high-load driving conditions.

Function:
• Uses a network of tubes and fins to transfer heat from coolant to ambient air
• Works with the engine cooling fan and shroud to enhance airflow
•  Helps maintain consistent operating temperature for the engine and drivetrain
•  Supports optimal combustion, performance, and durability, particularly during spirited driving or hot weather

A functional radiator is essential to engine health and performance. Over time, radiators can suffer from:
•   Clogging or corrosion
•   Leaks or cracks
•   Reduced cooling efficiency
•   Coolant contamination.
A failing radiator may lead to overheating, reduced performance, and potential engine damage. Replacing a worn unit with a new radiator ensures proper cooling performance and helps maintain your Porsche’s original thermal management efficiency.

Replace the radiator if you notice:
•   Coolant leaks or visible damage
•   Overheating or fluctuating temperature gauge readings
•   Coolant contamination or debris buildup
•   During engine cooling system overhaul or when other related components are replaced

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99110613
99110613103
99110613203

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99110613
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Product 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.

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99110613
99110613103
99110613203

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99110624202
Product Information
Product Information
Mounting bracket for water coolant radiator.
Sold each - 2 per side. Fits left or right radiator

Fits:
Porsche 991 GT3 / GT3 RS - 2014 to 2016
Porsche 991.1 turbo / turbo S - 2012 to 2016
Porsche 991.2 turbo / turbo S - 2016 to 2016

For engine codes
GT3 / GT3 RS - A175 / A176
turbo - A171 / DABA / DBCA / DBCB

Click 'Zoom in' for large parts diagram.
Diagram ref no 25



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99110624202
99110624202
99110624201

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99110633200
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Product Information

Radiator Lower Mounting Bush
Sold each – 4 required per car

The radiator lower mounting bush 99110633101 is an essential component used to support and isolate the radiator within the cooling system of several modern Porsche models including the 981, 718 Boxster, 718 Cayman and the 991.

Fits:

  • Porsche Boxster 981 2.7L 2012-16
  • Porsche Boxster 981 S / GTS 3.4L 2012-16
  • Porsche Boxster 981 Spyder 3.8L 2016
  • 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 Boxster GTS 718 4.0L Manual (400 Bhp) 01/2019>>
  • Porsche Boxster GTS 718 4.0L PDK (400 Bhp) 01/2019>>
  • Porsche Boxster Spyder / Sypder RS 718 4.0L 01/2019>>
  • Porsche Boxster 25 Years 718 4.0L Manual (400 Bhp) 01/2020>>
  • Porsche Boxster 25 Years 718 4.0L PDK (400 Bhp) 01/2020>>
  • 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 991.1 Turbo 3.8L (520 Bhp) 2014-16
  • Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014-16
  • Porsche 991.1 R 4.0L (500 Bhp) 2016
  • Porsche 991.1 GT3 3.8L (475 Bhp) 2014-16
  • Porsche 991.2 Carrera 2 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Carrera 2S / GTS 3.0L (420/450 Bhp) 2016-19
  • Porsche 991.2 Carrera 4 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Carrera 4S / GTS 3.0L (420/450 Bhp) 2016-19
  • Porsche 991.2 Cabriolet 2 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Cabriolet 2S / GTS 3.0L (420/450 Bhp) 2016-19
  • Porsche 991.2 Cabriolet 4 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Cabriolet 4S / GTS 3.0L (420/450 Bhp) 2016-19
  • Porsche 991.2 Targa 4 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Targa 4S / GTS 3.0L (420/450 Bhp) 2016-19
  • Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
  • Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
  • Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
  • Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19
  • Porsche 991.2 Speedster 4.0L (510Bhp) 2019
  • Porsche 991.2 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp) 2017-19
  • Porsche 991.2 GT2 RS 3.8L PDK (700 bhp) 2018-19
  • Porsche Cayman 2.7L 981 2013-16
  • Porsche Cayman S / GTS 3.4L 981 2013-16
  • Porsche Cayman GT4 3.8L 2015-16
  • 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)
  • Porsche Cayman GTS 718 4.0L Manual (400 Bhp)
  • Porsche Cayman GTS 718 4.0L PDK (400 Bhp)
  • Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L
  • Porsche Cayman GT4 Clubsport
  • Porsche Cayman GT4 RS Clubsport 2020-2024

Diagram Ref No 23  

Although small, this rubber mounting bush plays an important role in stabilising the radiator assembly while absorbing vibration and movement generated by the engine, road surface and cooling fans.

What This Radiator Mounting Bush Does

The lower radiator mounting bush sits between the radiator and the chassis mounting point. It helps secure the radiator in place while isolating vibration.

This component helps:

• Secure the radiator within the cooling system frame
• Absorb vibration and movement from the engine and road
• Prevent stress damage to the radiator housing
• Maintain proper radiator alignment with cooling ducts and fans

Without these bushes functioning correctly, the radiator may move excessively, leading to premature wear or cooling system issues.

Why Radiator Mounting Bushes Fail

Over time, rubber components within the engine bay are exposed to heat, moisture and road debris. This can cause the bush material to deteriorate.

Common causes of failure include:

Heat degradation
Continuous exposure to engine bay temperatures can cause rubber to harden and crack.

Compression fatigue
Years of supporting the radiator weight can flatten or weaken the bush.

Oil and coolant contamination
Exposure to fluids may accelerate rubber deterioration.

General ageing
Rubber components naturally degrade over time and lose elasticity.

Symptoms of a Worn Radiator Mount Bush

• Loose or unstable radiator positioning
• Rattling or vibration from the front cooling system area
• Visible cracking or deterioration of the rubber mount
• Radiator sitting lower or misaligned within the mount

Replacing worn mounting bushes restores proper support and reduces unwanted vibration in the cooling system.

Why You May Need to Replace This Part

Protect the Radiator Assembly
A stable radiator prevents stress on coolant connections, hoses and fittings.

Reduce Vibration and Noise
New bushes absorb vibration and prevent rattling from the radiator frame.

Prevent Cooling System Damage
Loose radiators can lead to cracked plastic tanks, hose strain or coolant leaks.

Affordable Preventative Maintenance
Replacing small rubber mounts during cooling system service or radiator replacement helps extend the life of the entire system.



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

99110633200
99110633200

The product you are viewing cross references to these numbers
Special Order item
99110633101
Product Information
Product Information

Radiator Upper Mounting Bush
Sold each – 4 required per car

The radiator upper mounting bush 99110633101 is an essential component used to support and isolate the radiator within the cooling system of several modern Porsche models including the 981, 718 Boxster, 718 Cayman and the 991.

Fits:

  • Porsche Boxster 981 2.7L 2012-16
  • Porsche Boxster 981 S / GTS 3.4L 2012-16
  • Porsche Boxster 981 Spyder 3.8L 2016
  • 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 Boxster GTS 718 4.0L Manual (400 Bhp) 01/2019>>
  • Porsche Boxster GTS 718 4.0L PDK (400 Bhp) 01/2019>>
  • Porsche Boxster Spyder / Sypder RS 718 4.0L 01/2019>>
  • Porsche Boxster 25 Years 718 4.0L Manual (400 Bhp) 01/2020>>
  • Porsche Boxster 25 Years 718 4.0L PDK (400 Bhp) 01/2020>>
  • 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 991.1 Turbo 3.8L (520 Bhp) 2014-16
  • Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014-16
  • Porsche 991.1 R 4.0L (500 Bhp) 2016
  • Porsche 991.1 GT3 3.8L (475 Bhp) 2014-16
  • Porsche 991.2 Carrera 2 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Carrera 2S / GTS 3.0L (420/450 Bhp) 2016-19
  • Porsche 991.2 Carrera 4 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Carrera 4S / GTS 3.0L (420/450 Bhp) 2016-19
  • Porsche 991.2 Cabriolet 2 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Cabriolet 2S / GTS 3.0L (420/450 Bhp) 2016-19
  • Porsche 991.2 Cabriolet 4 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Cabriolet 4S / GTS 3.0L (420/450 Bhp) 2016-19
  • Porsche 991.2 Targa 4 3.0L (370 Bhp) 2016-19
  • Porsche 991.2 Targa 4S / GTS 3.0L (420/450 Bhp) 2016-19
  • Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
  • Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
  • Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
  • Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19
  • Porsche 991.2 Speedster 4.0L (510Bhp) 2019
  • Porsche 991.2 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp) 2017-19
  • Porsche 991.2 GT2 RS 3.8L PDK (700 bhp) 2018-19
  • Porsche Cayman 2.7L 981 2013-16
  • Porsche Cayman S / GTS 3.4L 981 2013-16
  • Porsche Cayman GT4 3.8L 2015-16
  • 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)
  • Porsche Cayman GTS 718 4.0L Manual (400 Bhp)
  • Porsche Cayman GTS 718 4.0L PDK (400 Bhp)
  • Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L
  • Porsche Cayman GT4 Clubsport
  • Porsche Cayman GT4 RS Clubsport 2020-2024

Diagram Ref No 23  

Although small, this rubber mounting bush plays an important role in stabilising the radiator assembly while absorbing vibration and movement generated by the engine, road surface and cooling fans.

What This Radiator Mounting Bush Does

The upper radiator mounting bush sits between the radiator and the chassis mounting point. It helps secure the radiator in place while isolating vibration.

This component helps:

• Secure the radiator within the cooling system frame
• Absorb vibration and movement from the engine and road
• Prevent stress damage to the radiator housing
• Maintain proper radiator alignment with cooling ducts and fans

Without these bushes functioning correctly, the radiator may move excessively, leading to premature wear or cooling system issues.

Why Radiator Mounting Bushes Fail

Over time, rubber components within the engine bay are exposed to heat, moisture and road debris. This can cause the bush material to deteriorate.

Common causes of failure include:

Heat degradation
Continuous exposure to engine bay temperatures can cause rubber to harden and crack.

Compression fatigue
Years of supporting the radiator weight can flatten or weaken the bush.

Oil and coolant contamination
Exposure to fluids may accelerate rubber deterioration.

General ageing
Rubber components naturally degrade over time and lose elasticity.

Symptoms of a Worn Radiator Mount Bush

• Loose or unstable radiator positioning
• Rattling or vibration from the front cooling system area
• Visible cracking or deterioration of the rubber mount
• Radiator sitting lower or misaligned within the mount

Replacing worn mounting bushes restores proper support and reduces unwanted vibration in the cooling system.

Why You May Need to Replace This Part

Protect the Radiator Assembly
A stable radiator prevents stress on coolant connections, hoses and fittings.

Reduce Vibration and Noise
New bushes absorb vibration and prevent rattling from the radiator frame.

Prevent Cooling System Damage
Loose radiators can lead to cracked plastic tanks, hose strain or coolant leaks.

Affordable Preventative Maintenance
Replacing small rubber mounts during cooling system service or radiator replacement helps extend the life of the entire system.



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

99110633101
99110633101

The product you are viewing cross references to these numbers
Special Order item
99959152540
Product Information
Product Information
Plastic expansion rivet for door frame or cooling rad frame -7,0 x 14,05
Sold each

Fits:
Porsche 981 Boxster / Cayman - 2012 to 2016
Porsche 718 Boxster / Cayman - 2017 Onwards
Porsche 991.1 / 991.2 - 2012 to 2019
Porsche 991 turbo - 2014 to 2020
Porsche 991 GT3 - 2014 to 2021

Click 'Zoom in' for large parts diagram.
Diagram ref no 3 or 6




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99959152540
99959152540

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9P1959455CY/1
Product Information
Product Information
Radiator cooling fan, 600 W.
This radiator cooling fan 600 W is a direct-fit replacement for the front cooling module on Porsche 991.2, 982 Boxster S and 982C Cayman S models. It provides the airflow needed to keep coolant temperatures under control in traffic, hot weather and spirited driving.

Fits:
Porsche 991.2 Carrera 2017 - 2019
Porsche 991.2 Turbo 3.8L 16.11.2018 - 2020 (Engine code: DHNA)
Porsche 991.2 4.0L GT3 / GT3 RS / Speedster 01.04.2017 >> (Engine codes: DGGA, DGGB, DNS, DSD)
Porsche 982 (718) Boxster S 2017 >>
Porsche 982C (718) Cayman S 2017 >>

Diagram ref no 2

Please note: Before ordering, please check the part number in the vehicle.

It’s ideal as a cost-effective replacement when the factory fan has become noisy, weak, or failed completely.

Function:
• Draws air through the radiator and condenser to assist engine cooling
• Supports stable coolant temperatures at idle, low speeds and high load
• Integrates with the vehicle’s fan control strategy for staged or variable-speed operation.

Over time, cooling fans are subjected to heat, vibration and moisture, which can wear motor bearings, damage windings or throw the fan out of balance. A weak or failing fan can’t move enough air, causing rising coolant temperatures, especially in slow traffic or on hot days. Replacing it with a properly spec’d OE-Match unit restores consistent cooling performance and helps protect the engine from overheating.

When to Replace:
• Coolant temperature climbs at idle or in traffic
• Fan runs noisily (grinding, humming or excessive vibration)
• Fan fails to start even when the engine is hot
• Intermittent fan operation or related fault codes
• Radiator/condenser replacement where the old fan shows wear or damage.

Related reference numbers
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9P1959455CY
9P1959455BY

The product you are viewing cross references to these numbers
Special Order item
99110634
Product Information
Product Information
Radiator fan shroud.

Fit:
Porsche 991Carrera 2012-16
Porsche 981 Boxster 2012-16
Porsche 981 Boxster Spyder 2016
Porsche 981C Cayman 2012-16
Porsche 981 Cayman GT4 2016

Click 'Zoom in' for large parts diagram.
Diagram ref no 20

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99110634
99110634100
99110634200

The product you are viewing cross references to these numbers
Special Order item
99110614
Product Information
Product Information
Radiator for water coolant. 

Fits:
Porsche 991 GT3 / GT3 RS - 2014 to 2016
Porsche 991.1 turbo / turbo S - 2012 to 2016
Porsche 991.2 turbo / turbo S - 2016 to 2016

For engine codes
GT3 / GT3 RS - A175 / A176
turbo - A171 / DABA / DBCA / DBCB

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

99110614
99110614101
99110614201

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99110613802/2
Product Information
Product Information
Radiator water / coolant - Centre
OE Match centre water / coolant radiator for selected Porsche 991 Turbo, GT3, GT3 RS and GT2 RS models, as well as 981 Boxster Spyder and Cayman GT4 applications. This replacement centre radiator forms part of the engine cooling system, helping dissipate heat from the coolant and maintain stable engine operating temperatures.

Fits:
Porsche 991.1 Turbo / Turbo S 3.8L 2014 - 2016
Porsche 991.1 GT3 3.8L 2014 - 2016
Porsche 991.1 GT3 RS 4.0L 2015 - 2016

Porsche 991.2 Turbo / Turbo S 3.8L 2016 - 2019
Porsche 991.2 GT3 4.0L / GT3 RS 4.0L 2017-19

Porsche 981 Boxster Spyder 3.8L 2016
Porsche 981 Cayman 981 GT4 3.8L 2015-16

Diagram ref no 1

This is the centre-mounted coolant radiator used within the multi-radiator cooling system fitted to selected high-performance Porsche models. It works alongside the other cooling components to remove heat from the engine coolant as air passes through the radiator core.

Designed as an OE Match replacement for applications using part numbers 99110613802 or 99110613801.

What this part does
  • Replaces the centre engine coolant radiator
  • Helps remove heat from the engine coolant
  • Supports stable engine operating temperatures
  • Works as part of the vehicle’s multi-radiator cooling system
  • Helps maintain efficient coolant circulation and heat exchange
  • Suitable for replacing leaking, damaged or blocked radiators
  • Suitable for cooling system repair or restoration
  • Supplied as an OE Match replacement part.

Why Replace This Part?
Radiators are positioned at the front of the vehicle and are exposed to road debris, corrosion, contamination and repeated heating and cooling cycles. Over time, the radiator core can become damaged, blocked or develop leaks.

A damaged or inefficient centre radiator may contribute to:
  • Coolant leakage
  • Higher than normal coolant temperatures
  • Reduced cooling system efficiency
  • Overheating under demanding driving conditions
  • Visible damage to the radiator core
  • Coolant residue around the radiator

Replacing a faulty radiator helps restore effective heat dissipation and reliable cooling system performance.

When to Replace This Part
  • Radiator is leaking
  • Core is damaged or corroded
  • Cooling efficiency has reduced
  • Coolant temperature is running higher than normal
  • Radiator fins are heavily damaged or blocked
  • Cooling system overhaul is being carried out
  • Front-end accident repair is required.

Where it fits on the car
Fits in the centre front radiator position as part of the engine coolant cooling system.


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

99110613802
99110613801
99110613802
8MK 376 701-661
8MK376701661
CR89000P

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99110613802
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Radiator water / coolant - Centre
This original Porsche centre radiator forms part of the engine cooling system, helping dissipate heat from the circulating coolant and maintain the correct operating temperature during road and track use.

Fits:
Porsche 991.1 Turbo / Turbo S 3.8L 2014 - 2016
Porsche 991.1 GT3 3.8L 2014 - 2016
Porsche 991.1 GT3 RS 4.0L 2015 - 2016

Porsche 991.2 Turbo / Turbo S 3.8L 2016 - 2019
Porsche 991.2 GT3 4.0L / GT3 RS 4.0L 2017-19

Porsche 981 Boxster Spyder 3.8L 2016
Porsche 982 Boxster Spyder 2019>>
Porsche 981 Cayman GT4 3.8L 2015-16
Porsche 982 Cayman GT4 2019>>

Diagram ref no 1

Designed for the factory front cooling arrangement, it provides an OE replacement for a leaking, damaged or inefficient original centre radiator.

Key Features
  • Genuine Porsche centre water/coolant radiator.
  • Designed for selected high-performance Porsche 991 and 981 models.
  • Supports efficient heat dissipation and engine temperature control.
  • Forms part of the front-mounted radiator cooling system.
  • Helps maintain correct coolant circulation and cooling performance.
  • Replaces a leaking, corroded or damaged original radiator.
  • Manufactured to Porsche's original fitment specification.

Why Replace This Part?
The centre radiator is exposed to road debris, moisture, corrosion and repeated temperature changes. Over time, the radiator core can become damaged or blocked, while ageing connections and seals may contribute to coolant leaks. A faulty radiator can reduce cooling efficiency and increase the risk of engine overheating, particularly during demanding driving conditions.

Replacing it with a Genuine Porsche centre radiator helps restore the original cooling system performance.

Common Symptoms of a Faulty Radiator
  • Coolant leaking from the front centre radiator area.
  • Low coolant warning.
  • Engine temperature rising above normal.
  • Damaged or corroded radiator core.
  • Bent or blocked cooling fins.
  • Dried coolant residue around radiator connections.
  • Cooling system pressure loss.
  • Reduced cooling efficiency during demanding driving.

Where It Fits on the Car
The radiator is fitted in the front centre cooling assembly, behind the front bumper. It works alongside the vehicle's other radiators, coolant hoses and associated cooling system components.


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

99110613802
99110613801
99110613802
8MK 376 701-661
8MK376701661

The product you are viewing cross references to these numbers
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About Water / Coolant Radiators

Water Coolant Radiators – Efficient Cooling Performance for Porsche Engines

Water coolant radiators are the heart of your Porsche’s cooling system, responsible for maintaining the perfect balance between performance and engine temperature. These components dissipate heat from the coolant as it passes through the radiator core, ensuring your engine operates at peak efficiency while preventing overheating - whether you’re cruising through city streets or pushing hard on the track.

At Design911, we offer a comprehensive range of genuine and high-quality water coolant radiators for Porsche models including 911, Boxster, Cayman, Cayenne, Macan, Panamera and transaxle cars. Each radiator is precision-engineered to provide efficient heat exchange, corrosion resistance, and a perfect fit, ensuring long-lasting performance and reliability for every driving condition.

What Do Water Coolant Radiators Do?

Radiators are essential to your Porsche’s engine cooling system. Their primary functions include:

  • Transferring heat from the coolant to the surrounding air.
  • Regulating coolant temperature to prevent engine overheating.
  • Supporting overall thermal balance for performance and emissions efficiency.
  • Enhancing reliability by maintaining optimal operating temperatures in all climates.

By efficiently dissipating heat, radiators protect your engine, prevent premature wear, and maintain consistent performance under pressure.

Why Do Radiators Fail?

Despite being built for endurance, radiators experience constant thermal stress, exposure to pressure, and environmental elements that can lead to failure. Common causes include:

  • Corrosion or rust due to contaminated or old coolant.
  • Leaks from cracked tanks, damaged cores, or failing seals.
  • Blockages caused by debris or scale build-up inside coolant passages.
  • Physical damage from road debris or stone impacts.
  • Coolant contamination from oil or combustion residue.

Symptoms of radiator failure include overheating, coolant loss, visible leaks, or fluctuating temperature readings.

Why Replace a Faulty Radiator?

A damaged or inefficient radiator compromises your Porsche’s cooling system, risking overheating and potential engine damage. Replacing your radiator with a high-quality, manufacturer-standard unit ensures optimal cooling efficiency, reliability, and peace of mind.

Benefits of replacement include:
Restored cooling efficiency and heat dissipation.
Prevention of engine overheating and coolant loss.
Enhanced vehicle performance and fuel economy.
Durable, corrosion-resistant materials for long service life.

All radiators in our range are designed using premium aluminium cores, precision welds, and reinforced end tanks to ensure excellent cooling capacity, leak prevention, and long-term reliability — perfect for both standard and high-performance Porsche applications.

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