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Water / Coolant Radiators

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DISPLAYING 1 to 16 (of 76 products)
1 2 3 4 >>
RADKIT99102
Product Information
Product Information

Racing and high performance radiators for all Porsche models make a great performance upgrade as well as an incredibly durable and reliable OE replacement.

csf

Racing & high performance radiators for all Porsche models. CSF strives to build and engineer the most advanced, efficient, and reliable cooling systems in the world. All-aluminium 100% TIG welded, CNC machined brackets, mounting pins and "Quick-Connect" inlet/outlet pipes, Drop-in fit requiring no modifications , 2 row core with B-Tube technology (+20%), 1 hour hand polished, Track Tested & Proven in 110°F, ISO 9001 certified cooling system manufacture.

ENGINEERING
"B-Tube" Technology - Most efficient tube in the world
High Efficiency Louvered Fin
OE radial and deep drawn aluminium end tanks
Wind tunnel tested for optimal radiator core cooling performance
Stronger joint design for mountings, fan shrouds & condensers
OE Specific Mounting
"Drop-in" fitment requiring no modifications
CNC Machined brackets and fittings
Racing Style all-aluminium drain plug

MANUFACTURING
Brazed in CAB Furnace
ISO 9001/9002 certification
Privately owned factories with full "In house" tool rooms
"Master Class" TIG welding

TESTING
Individually leak tested
Vibration cycle tested
Thermal cycle tested
Burst pressure cycle tested 10,000 times for strength
Salt spray tested for corrosion protection

Cross reference numbers
Left: 99110613103
Right: 99110613203
Centre: 99110613702

Fits:
Porsche 991.1 Carrera / Carrera 4 - 2012 to 2016
Porsche 991.1 Carrera S / Carrera 4S - 2012 to 2016
Porsche 987 Boxster / Boxster S - 2013 to 2016
Porsche 987 Cayman / Cayman S - 2013 to 2016




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Related, superseded, cross reference or alternative numbers for comparison.

RADKIT99102
99110613103
99110613203
99110313702
99110613701

The product you are viewing cross references to these numbers
RADKIT99605
Product Information
Product Information
Radiator for Water Coolant Fluid. Porsche 996 / Boxster 986

mahle

SET OF 2


Fits:
Porsche 996 C2 / C4 / GT3 1997-05
Porsche 986 Boxster 1997-2004

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.

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Related, superseded, cross reference or alternative numbers for comparison.

RADKIT99605
8MK376714291
99610613151
99610613151
99610613150
8MK376713791
8MK 376 713-791
99610613251
99610613181

The product you are viewing cross references to these numbers
RADKIT99606
Product Information
Product Information
Radiator for Water Coolant Fluid. Porsche 996 / Boxster 986

oematch
SET OF 2

Fits:
Porsche 996 C2 / C4 / GT3 1997-05
Porsche 986 Boxster 1997-2004

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.

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

RADKIT99606
8MK376714291
99610613151
99610613151
99610613150
8MK376713791
99610613251

The product you are viewing cross references to these numbers
99110613702/1KIT
Product Information
Product Information

Centre Radiator, Coolant Hoses & Mountings Kit 
This complete kit includes a direct-fit centre radiator, left and right coolant hoses and radiator mountings. Designed to OEM specifications, the set ensures efficient engine cooling, leak-free connections, and secure mounting. By replacing the radiator, hoses, and mountings together, you restore the cooling system’s reliability and avoid weak points that can lead to costly engine damage.

Fits:
Porsche Boxster 981 2.7L 2012-16
Porsche Boxster S / GTS 981 3.4L 2012-16
Porsche 991 Carrera C2 3.4L (350Bhp)
Porsche 991 Carrera C2S 3.8L (400Bhp)
Porsche 991 Carrera C4 3.4L (350Bhp)
Porsche 991 Carrera C4S 3.8L (400Bhp)
Porsche Cayman 2.7L 981 2013-16
Porsche Cayman S / GTS 3.4L 981 2013-16

 What the Products Do

  • Radiator: Dissipates heat from engine coolant to maintain safe operating temperatures.
  • Coolant Hoses: Carry coolant between the radiator and engine, ensuring proper circulation under pressure.
  • Mountings: Securely hold the radiator in place, preventing movement, vibration, and premature wear.

Together, they form a complete cooling solution that keeps your engine protected and performing as intended.

Symptoms of Failure

  • Rising engine temperatures or overheating
  • Coolant leaks around radiator or hose connections
  • Bulging, cracked, or soft coolant hoses
  • Rattling or loose radiator due to failed mounts
  • Sweet coolant smell from the engine bay
  • Low coolant levels requiring frequent top-ups

Common Reasons for Failure

  • Heat & Pressure Cycles: Repeated expansion and contraction cause radiator and hoses to weaken over time.
  • Material Aging: Rubber hoses harden or swell, while plastic mounts may crack.
  • Coolant Quality: Old or contaminated coolant accelerates corrosion and internal damage.
  • Vibration & Stress: Worn mounts allow radiator movement, leading to leaks and structural failure.

Why Replace as a Kit?

  • Restores complete cooling system integrity in one service.
  • Prevents breakdowns by addressing all common weak points at once.
  • New mounts ensure secure fitment and reduced vibration.
  • Protects against overheating and costly engine repairs.
  • Saves labour costs compared to replacing components individually.       
Ideal For: Cooling system overhauls, resolving overheating or leaks, and preventive maintenance on performance-driven or high-mileage vehicles.

Kit contains a Mahle radiator and Original Porsche hoses and mountings

Diagram ref no 1, 4, 5, 6 and 7



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

99110613702
99110613702
8MK376792601
99110613701
9P1121253
99110653701
99110653802
99110663901
99110663802

The product you are viewing cross references to these numbers
RADKIT99704
Product Information
Product Information
SET OF 2
Radiator Water Coolant Fluid. Porsche Boxster 987 / Cayman 987C / 997 (OE Part No. 99710613102 / 99710613202)

mahle

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.

RADKIT99704
8MK376730581
8MK 376 730-581
8MK376733671
8MK 376 733-671
99710613102
99710613202

The product you are viewing cross references to these numbers
RADKIT99601
Product Information
Product Information
Reduces the high water running temperature, which in turn will protect your engine.
Lower operating water temperature up to 60° F

Fits:
Porsche 996 3.4L C2/C4/C4S Upto 2001 Pre-Face Lift
Manual cars only.

Porsche 996 3.6L C2/C4/C4S Upto 2001 Pre-Face Lift
Manual cars only.

Porsche Boxster 2.5L / 2.7L
Manual cars only.

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

RADKIT99601
99610603753

The product you are viewing cross references to these numbers
RADKIT99602
Product Information
Product Information
Reduces the high water running temperature, which in turn will protect your engine.
Lower operating water temperature up to 60° F

Fits:
Porsche 996 3.4L C2/C4/C4S 2002 Onwards Face Lift
Manual cars only.

Porsche 996 3.6L C2/C4/C4S 2002 Onwards Face Lift
Manual cars only.

Porsche Boxster 2.5L / 2.7L
Manual cars only.

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

RADKIT99602
9965055610201C
99650448702
90037807401
99959186901
99950755001
93011343000
99650448502
90037803601
99657514104
99610666656
99610666558
99951255201
99951249900
99610603753

The product you are viewing cross references to these numbers
WATERRADKIT1
Product Information
Product Information
Reduces the high water running temperature, which in turn will protect your engine.
Lower operating water temperature up to 60° F

Fits:
Porsche Boxster 987

Manual & Tiptronic cars.

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

WATERRADKIT1
98757532300
99710603702
99750448500
99750448700
99710663904
99710663804
99959186901
90037807401
9875055550001C

The product you are viewing cross references to these numbers
99662413500/2KIT
Product Information
Product Information
Radiator water fans. SET OF 2 Porsche 986 Boxster / 996. Fits Left & Right side for LHD or RHD cars 

oematch

Fits:
Porsche 986 Boxster 1997-2004
Porsche 996 C2, C4, GT3 1998-05

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

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

99662413500
99662413500

The product you are viewing cross references to these numbers
Special Order item
99710615
Product Information
Product Information
Radiator Water Bracket.
porsche

Fits:
Porsche 987 Boxster
Porsche 987C Cayman
Porsche 997 Carrera

Click 'Zoom in' for large parts diagram.
Diagram Ref No 8

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

99710615
99710615601
99710615501

The product you are viewing cross references to these numbers
Special Order item
98757532300
Product Information
Product Information
Air Duct for center radiator.
porsche

Fits:
Porsche 987 Boxster S 2005-08 Tiptronic transmission

Click 'Zoom in' for large parts diagram.
Diagram Ref No 9

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

98757532300
99710603702
53799
8MK376729531
8MK 376 729 531

The product you are viewing cross references to these numbers
7068
Product Information
Product Information

Racing and high performance radiators for all Porsche models make a great performance upgrade as well as an incredibly durable and reliable OE replacement.

Fits:
Porsche 911 Turbo (991) / 991 GT3 / 991 GT3RS / 991 CUP / 981 Boxster Spyder / Cayman GT4

Cross reference numbers
99110613801, 99110613802, 99110603890


CSF strives to build and engineer the most advanced, efficient, and reliable cooling systems in the world. All-aluminium 100% TIG welded, CNC machined brackets, mounting pins and "Quick-Connect" inlet/outlet pipes, Drop-in fit requiring no modifications , 2 row core with B-Tube technology (+20%), 1 hour hand polished, Track Tested & Proven in 110°F, ISO 9001 certified cooling system manufacture.

ENGINEERING
"B-Tube" Technology - Most efficient tube in the world
High Efficiency Louvered Fin
OE radial and deep drawn aluminium end tanks
Wind tunnel tested for optimal radiator core cooling performance
Stronger joint design for mountings, fan shrouds & condensers
OE Specific Mounting
"Drop-in" fitment requiring no modifications
CNC Machined brackets and fittings
Racing Style all-aluminium drain plug

MANUFACTURING
Brazed in CAB Furnace
ISO 9001/9002 certification
Privately owned factories with full "In house" tool rooms
"Master Class" TIG welding

TESTING
Individually leak tested
Vibration cycle tested
Thermal cycle tested
Burst pressure cycle tested 10,000 times for strength
Salt spray tested for corrosion protection

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

7068
7068
99110613802
99110613801
99110603890

The product you are viewing cross references to these numbers
7060
Product Information
Product Information
Racing and high performance radiators for all Porsche models make a great performance upgrade as well as an incredibly durable and reliable OE replacement.

Fits:
Porsche Boxster 981
Porsche Cayman 981
Porsche 991.1 and 991.2 Carrera

Cross reference numbers
99110613702, 99110613701, 9P1121253

CSF strives to build and engineer the most advanced, efficient, and reliable cooling systems in the world. All-aluminium 100% TIG welded, CNC machined brackets, mounting pins and "Quick-Connect" inlet/outlet pipes, Drop-in fit requiring no modifications , 2 row core with B-Tube technology (+20%), 1 hour hand polished, Track Tested & Proven in 110°F, ISO 9001 certified cooling system manufacture.

ENGINEERING
"B-Tube" Technology - Most efficient tube in the world
High Efficiency Louvered Fin
OE radial and deep drawn aluminium end tanks
Wind tunnel tested for optimal radiator core cooling performance
Stronger joint design for mountings, fan shrouds & condensers
OE Specific Mounting
"Drop-in" fitment requiring no modifications
CNC Machined brackets and fittings
Racing Style all-aluminium drain plug

MANUFACTURING
Brazed in CAB Furnace
ISO 9001/9002 certification
Privately owned factories with full "In house" tool rooms
"Master Class" TIG welding

TESTING
Individually leak tested
Vibration cycle tested
Thermal cycle tested
Burst pressure cycle tested 10,000 times for strength
Salt spray tested for corrosion protection


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

7060
99110613702
7060
99110613701
9P1121253

The product you are viewing cross references to these numbers
706
Product Information
Product Information
Racing and high performance radiators for all Porsche models make a great performance upgrade as well as an incredibly durable and reliable OE replacement.

Fits:

Porsche 991.1
Porsche Boxster 981
Porsche Cayman 981

Cross reference numbers
99110613103, 99110613203

CSF strives to build and engineer the most advanced, efficient, and reliable cooling systems in the world. All-aluminium 100% TIG welded, CNC machined brackets, mounting pins and "Quick-Connect" inlet/outlet pipes, Drop-in fit requiring no modifications , 2 row core with B-Tube technology (+20%), 1 hour hand polished, Track Tested & Proven in 110°F, ISO 9001 certified cooling system manufacture.

ENGINEERING
"B-Tube" Technology - Most efficient tube in the world
High Efficiency Louvered Fin
OE radial and deep drawn aluminium end tanks
Wind tunnel tested for optimal radiator core cooling performance
Stronger joint design for mountings, fan shrouds & condensers
OE Specific Mounting
"Drop-in" fitment requiring no modifications
CNC Machined brackets and fittings
Racing Style all-aluminium drain plug

MANUFACTURING
Brazed in CAB Furnace
ISO 9001/9002 certification
Privately owned factories with full "In house" tool rooms
"Master Class" TIG welding

TESTING
Individually leak tested
Vibration cycle tested
Thermal cycle tested
Burst pressure cycle tested 10,000 times for strength
Salt spray tested for corrosion protection

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

706
7066
7067
99110613103
99110613203

The product you are viewing cross references to these numbers
70
Product Information
Product Information

Racing and high performance radiators for all Porsche models make a great performance upgrade as well as an incredibly durable and reliable OE replacement.

Fits:
Porsche 911 Carrera (991.2) / 911 Turbo (991) / 991 GT3 / 991 GT3RS / 991 CUP 

Cross reference numbers
99110614101, 99610114201

 CSF strives to build and engineer the most advanced, efficient, and reliable cooling systems in the world. All-aluminium 100% TIG welded, CNC machined brackets, mounting pins and "Quick-Connect" inlet/outlet pipes, Drop-in fit requiring no modifications , 2 row core with B-Tube technology (+20%), 1 hour hand polished, Track Tested & Proven in 110°F, ISO 9001 certified cooling system manufacture.


ENGINEERING
"B-Tube" Technology - Most efficient tube in the world
High Efficiency Louvered Fin
OE radial and deep drawn aluminium end tanks
Wind tunnel tested for optimal radiator core cooling performance
Stronger joint design for mountings, fan shrouds & condensers
OE Specific Mounting
"Drop-in" fitment requiring no modifications
CNC Machined brackets and fittings
Racing Style all-aluminium drain plug

MANUFACTURING
Brazed in CAB Furnace
ISO 9001/9002 certification
Privately owned factories with full "In house" tool rooms
"Master Class" TIG welding

TESTING
Individually leak tested
Vibration cycle tested
Thermal cycle tested
Burst pressure cycle tested 10,000 times for strength
Salt spray tested for corrosion protection


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

70
7066
7067
99110614101
99110614201

The product you are viewing cross references to these numbers
Special Order item
99110654601
Product Information
Product Information
Blanking plug / bung for water radiator.

porsche

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

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

99110654601
99110654601

The product you are viewing cross references to these numbers
DISPLAYING 1 to 16 (of 76 products)
1 2 3 4 >>
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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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