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Water / Coolant Radiators

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RADKIT987-997.CSF
Product Information
Product Information

Aluminium Water Coolant Radiators & Air Conditioning Condenser Kit

Completely refresh your Porsche's cooling and climate control system with this CSF Aluminium Water Coolant Radiator & Air Conditioning Condenser Kit. Combining CSF's industry-leading cooling technology with OEM+ fitment, this complete kit delivers improved engine cooling, enhanced air conditioning performance and exceptional long-term reliability.

Fits:

  • Porsche Boxster 987 2.7L 2005-08/08
  • Porsche Boxster 987 S 3.2/3.4L 2005-08/08
  • Porsche Boxster 987 MKII 2.9L 2009-12
  • Porsche Boxster S 987 MKII 3.4L 2009-12
  • Porsche 997 MK1 Carrera 2 3.6L 2005-08
  • Porsche 997 MK1 Carrera 2S 3.8L 2005-08
  • Porsche 997 MK1 Carrera 4 3.6L 2005-08
  • Porsche 997 MK1 Carrera 4S 3.8L 2005-08
  • Porsche 997 MK1 GT3 / GT3 RS 2007-09
  • Porsche 997 MKII Carrera C2 3.6L 2009-12
  • Porsche 997 MKII Carrera C4 3.6L 2009-12
  • Porsche 997 MKII Carrera C2S 3.8L 2009-12
  • Porsche 997 MKII Carrera C4S 3.8L 2009-12
  • Porsche 997 MKII GT3 / GT3 RS 2010-11
  • Porsche Cayman 2.7L 987C 2006-08
  • Porsche Cayman S 3.4L 987C 2005-08
  • Porsche Cayman 2.9L 987C MKII 2009-12
  • Porsche Cayman S / R 3.4L 987C MKII 2009-12

As Porsche 997 and 987 models continue to age, corrosion, blocked cooling fins and road debris can significantly reduce the efficiency of both the engine cooling system and the air conditioning condensers. Replacing these components together restores cooling performance throughout the vehicle while reducing future labour costs and helping prevent overheating or air conditioning failures.

This complete upgrade package is ideal for road cars, fast-road builds, track day vehicles and full restorations.

Kit Contents

This complete cooling package includes:

  • 2 x CSF OEM+ Performance Air Conditioning Condensers
  • 1 x CSF Aluminium Left Water Coolant Radiator
  • 1 x CSF Aluminium Right Water Coolant Radiator 

Together these components provide a complete front-end cooling system upgrade using premium CSF Performance products.

Why Replace the Cooling System Together?

The front-mounted radiators and air conditioning condensers are constantly exposed to:

  • Road debris.
  • Stone impacts.
  • Moisture.
  • Corrosion.
  • Leaves and dirt blocking airflow.

Even when they appear externally clean, internal corrosion and blocked cooling passages can significantly reduce cooling efficiency.

Replacing all four units together provides:

  • Maximum engine cooling performance.
  • Improved air conditioning efficiency.
  • Better airflow through the front cooling pack.
  • Reduced coolant temperatures.
  • Improved refrigerant heat dissipation.
  • Increased long-term reliability.
  • Lower overall installation costs compared with replacing components individually.

Advanced CSF Cooling Technology

CSF has become one of the world's leading manufacturers of high-performance cooling systems, supplying OEM manufacturers, motorsport teams and Porsche enthusiasts worldwide.

Each component in this kit has been developed using modern engineering techniques to outperform the original factory equipment while maintaining direct OE fitment.      

CSF Aluminium Radiators

The CSF  and radiators feature:

  • Premium all-aluminium construction.
  • High-efficiency cooling core.
  • Increased coolant flow.
  • Excellent thermal efficiency.
  • Stronger construction than ageing factory radiators.
  • Superior resistance to corrosion and fatigue.
  • Direct replacement fitment.

Together they provide significantly improved cooling capacity while maintaining factory installation points.

Benefits of the Complete CSF Cooling Upgrade

Replacing both radiators and both condensers at the same time offers numerous advantages:

  • Restores factory cooling performance.
  • Improves air conditioning operation.
  • Reduces engine operating temperatures.
  • Improves airflow through the complete cooling pack.
  • Enhances reliability during spirited road driving and track use.
  • Helps protect expensive engine components.
  • Reduces the likelihood of future cooling system failures.
  • Ideal preventative maintenance on higher mileage vehicles.

Premium Quality Construction

Every CSF component is manufactured to exacting standards using premium materials.

Features include:

  • 100% aluminium construction.
  • Precision TIG-welded assemblies.
  • Satin black corrosion-resistant finish.
  • OEM mounting locations.
  • Plug-and-play installation.
  • No modifications required.
  • Individually leak and pressure tested.
  • Backed by CSF's quality manufacturing standards.       



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

RADKIT987-997.CSF
99710613102
99710613202
99757391102
99657311103
99757391104
99657311102

The product you are viewing cross references to these numbers
RADKIT997.MAH
Product Information
Product Information
Radiator for Water Coolant Fluid
Radiator for water coolant fluid (also known as Coolant radiator, Water radiator or Water coolant fluid cooler) is the backbone of a Porsche engine’s thermal management system. It dissipates heat from the engine’s water-based coolant, stabilising engine temperatures, preserving performance, efficiency, and long-term reliability. 
SET OF 2

Fits:
Porsche 987.1 Boxster 2005 - 2008
Porsche 987.2 Boxster 2009 - 2012
Porsche 987C.1 Cayman 2005 - 2008
Porsche 987C.2 Cayman 2009 - 2012
Porsche 997.1 Carrera 2005 - 2008
Porsche 997.1 GT3 2007 - 2009
Porsche 997.2 Carrera 2009 - 2012
Porsche 997.2 GT3 2010 - 2011

This product comes with 2 YEARS Warranty

The radiator’s main role is to remove heat from the engine coolant that carries thermal energy away from the engine block and cylinder head. Hot coolant flows into the radiator, where it travels through a series of fine tubes and cooling fins. Air passing through the radiator core (from vehicle motion and fans) absorbs the heat, lowering coolant temperature before it returns to the engine.

Proper heat rejection helps:
• Maintain optimal engine operating temperature
 Prevent overheating under everyday and high-load conditions
 Support fuel efficiency and emission control
 Preserve engine component durability and longevity


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

RADKIT997.MAH
8MK376730581
8MK 376 730-581
8MK376733671
8MK 376 733-671
99710613102
99710613202

The product you are viewing cross references to these numbers
RADKIT997.OEM
Product Information
Product Information
SET OF 2
Radiators for Water Coolant Fluid. Porsche Boxster 987 / Cayman 987C / 997 (OE Part No. 99710613102 / 99710613202)

oematch

Fits:
Porsche 987 Boxster 2005>>
Porsche 987C Cayman 2005-08
Porsche 997 2005-08

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.
This product comes with 2 YEARS Warranty

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

RADKIT997.OEM
99710613102
99710613202

The product you are viewing cross references to these numbers
RADKIT997.1.OEM
Product Information
Product Information
Water Coolant Fluid radiators and connecting pipes. Porsche Boxster 987 / Cayman 987C / 997 (OE Part No. 99710613102 / 99710613202)

oematch

Fits:
Porsche 987 Boxster 2005>>
Porsche 987C Cayman 2005-08
Porsche 997 2005-08

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.
This product comes with 2 YEARS Warranty

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

RADKIT997.1.OEM
99710613102
99710613202
99710662105
99710662504
99710662204
99710662605

The product you are viewing cross references to these numbers
DISPLAYING 1 to 4 (of 25 products)
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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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