Please wait… 
Please wait while we process your order,
do not press the back button… 
Design 911 Design 911 supply Porsche parts, Porsche spares and Porsche accessories, to both retail and to the trade. Our Porsche product and accessory range includes brakes, exhausts, tyres, wheels and Porsche panels and interiors. https://design91.uk/images/schemaLogo.png https://design91.uk/images/schemaLogo.png +443456003478 https://design91.uk Facebook Instagram

Water / Coolant Radiators

Filter by brand
DISPLAYING 17 to 25 (of 25 products)
1 2
Special Order item
9P1959456Y
Product Information
Product Information
Radiator cooling fan.

porsche

Fits:
Porsche 982 (718) Boxster 2017>>
Porsche 982C (718) Cayman 2017>>

Click 'Zoom in' for large parts diagram.
Diagram ref no 2

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Related, superseded, cross reference or alternative numbers for comparison.

9P1959456Y
9P1959456Y

The product you are viewing cross references to these numbers
Special Order item
99110613702
Product Information
Product Information
Radiator water / coolant - centre.

porsche

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Related, superseded, cross reference or alternative numbers for comparison.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

The product you are viewing cross references to these numbers
99110613702/1
Product Information
Product Information
Radiator water / coolant, Centre.

mahle

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Related, superseded, cross reference or alternative numbers for comparison.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
8MK376792601
99110613701
9P1121253

The product you are viewing cross references to these numbers
Special Order item
9P112125
Product Information
Product Information
Radiator Water.

porsche

Fits:
Porsche 991.2 - 2017>>
Porsche 991.2 GT2 RS - 2017>>
Porsche 991.2 GT3 / GT3 RS / Speedster - 2017>>

Porsche 982 (718) Boxster 2.0ltr / 2.5ltr - 2017>>
Porsche 982 (718) Boxster Spyder / GTS 4.0ltr - 2017>>
Porsche 982C (718) Cayman 2.0ltr / 2.5ltr - 2017>>
Porsche 982C (718) Cayman GT4 4.0ltr - 2019>>

Click 'Zoom in' for large parts diagram.
Diagram ref no 1



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Related, superseded, cross reference or alternative numbers for comparison.

9P112125
9P1121251
9P1121252

The product you are viewing cross references to these numbers
9P112125
Product Information
Product Information
Radiator water.

oematch

Fits:

Porsche 991.2 - 2017>>
Porsche 991.2 GT2 RS - 2017>>
Porsche 991.2 GT3 / GT3 RS / Speedster - 2017>>
Porsche 982 (718) Boxster 2.0ltr / 2.5ltr - 2017>>
Porsche 982 (718) Boxster Spyder / GTS 4.0ltr - 2017>>
Porsche 982C (718) Cayman 2.0ltr / 2.5ltr - 2017>>
Porsche 982C (718) Cayman GT4 4.0ltr - 2019>>

Click 'Zoom in' for large parts diagram.
Diagram ref no 1



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

9P112125
9P1121251
9P1121252

The product you are viewing cross references to these numbers
Special Order item
98212138
Product Information
Product Information
Bracket for the rear radiator. 

Fits:
Porsche 718 (982) Boxster 2.0L 2017>>
Porsche 718 (982) Boxster S 2.5L 2017>>

Porsche 718 (982) Cayman 2.0L 2017>> 
Porsche 718 (982) Cayman S 2.5L 2017>>

Diagram reference(s):

No. 7 - Left Bracket 
No. 8 - Right Bracket (As Pictured)

NOTE: These brackets are not for the two primary radiators at the front of the car. They are designed for the two laterally positioned radiators at the rear, part of the indirect charge-air cooling system. In this system, hot air is fed into the integrated charge-air cooler on top of the engine, where it is cooled by plate fins, transferring the heat to the water in the low-temperature circuit. The heated water is then routed into the two rear radiators, where it is cooled and recirculated for use in the cooling circuit.

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

98212138
982121383B
982121384B

The product you are viewing cross references to these numbers
Special Order item
99162417300
Product Information
Product Information
Rubber mounting/isolator for radiator fan. Six required per side; twelve in total. 
Sold each.

porsche

Fits: 
Porsche Boxster 981 / 982 (718) 2012>> 
Porsche Cayman 981 / 982 (718) 2014>>  
Porsche Boxster Spyder 981 / 982 (718) 2016>> 
Porsche Cayman GT4 981 / 982 (718) 2016>> 
Porsche 918 Spyder 2015 
Porsche 991 Carrera 2012-16 
Porsche 991 Turbo / GT2 RS 2014-2020
Porsche 991 GT3 / RS 2014-21

Click 'Zoom in' for large parts diagram.
Diagram ref no 11
Special Order item
99991930601
Product Information
Product Information
Screw with washer radiator fan cowl. 
Sold each - 4 required per car 

porsche

Fits:
Porsche 981 Boxster - 2012 to 2016
Porsche 981 Cayman - 2013 to 2016
Porsche 718 Boxster - 2017 to 2024
Porsche 718 Cayman - 2017 to 2024
Porsche 991.1 - 2012 to 2016
Porsche 991.2 - 2016 to 2019

Click 'Zoom in' for large parts diagram.
Diagram ref no 29



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

99991930601
99991930601

The product you are viewing cross references to these numbers
Special Order item
99162417503
Product Information
Product Information
Spacer sleeve for radiator fan. Three required per side; six in total. 
Sold each.

porsche

Fits: 
Porsche Boxster 981 / 982 (718) 2012>> 
Porsche Cayman 981 / 982 (718) 2014>>  
Porsche Boxster Spyder 981 / 982 (718) 2016>> 
Porsche Cayman GT4 981 / 982 (718) 2016>>  
Porsche 991 Carrera 2012-16 
Porsche 991 GT2 RS 2014-2020 

NOTE: This part will not fit GT3 or Turbo / Turbo S models. 

Click 'Zoom in' for large parts diagram.

Diagram ref no 12



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

99162417503
99162417502
99162417501

The product you are viewing cross references to these numbers
DISPLAYING 17 to 25 (of 25 products)
1 2
Also found on these pages
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.

You may also like
Popular Models