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Water / Coolant Radiators

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DISPLAYING 1 to 16 (of 40 products)
1 2 3
RADKIT99101
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: 9P1121251
Right: 9P1121252
Centre: 99110613502

Fits:
Porsche 991.2 Carrera / Carrera 4 - 2016 to 2018
Porsche 991.2 Carrera S / Carrera 4S - 2016 to 2018
Porsche 718 Boxster / S / T / GTS 2.0ltr - 2.5ltr - 2017 onwards
Porsche 718 Cayman / S / T / GTS 2.0ltr - 2.5ltr - 2017 onwards



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Related, superseded, cross reference or alternative numbers for comparison.

RADKIT99101
9P1121251
9P1121252
991110613702

The product you are viewing cross references to these numbers
RADKIT99104
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: 9P1121251
Right: 9P1121252
Centre: 99110613801 / 99110613802 / 99110603890

Fits:
Porsche 991.2 GT3 
Porsche 991.2 GT2 
Porsche 718 Cayman GT4 
Porsche 718 Boxster Spyder 



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Related, superseded, cross reference or alternative numbers for comparison.

RADKIT99104
9P1121251
9P1121252
99110613801
99110613802
99110603890

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
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
708
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 991.2 Carrera
Porsche 991 GT2/RS
Porsche 991.2 GT3/RS/R
Porsche 718 Boxster
Porsche 718 Cayman
Porsche 718 GT4

 • OEM #:  Left: 9P1121251 / Right: 9P1121252

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,

• 2-Row 42mm High-Performance Core Featuring CSF's B-Tube Technology
• Core Features Ultra Efficient 6.5mm Tall Fins with a Multi-Louvered Design for Maximum Surface Area Contact
• 100% All-Aluminum TIG-Welded Construction
• CNC Machined Mounting Brackets and OEM Style "Quick Connect" Inlet/Outlet
• Sealing Foam for Optimized Airflow Into the Core and Precise Fitment Into OEM Radiator Pods
• True "Drop-in Fit" Requires No Modifications to Install
• Individually Leak and Pressure Tested
• High-Performance Upgrade Suitable for Professional Racing, Street Performance, or OEM Replacement
• 1 Hour "Mirror Finish" Hand Polish
• 2 Year Limited Warranty


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Related, superseded, cross reference or alternative numbers for comparison.

708
7086
7087
9P1121252
9P1121251

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
Special Order item
99110635503
Product Information
Product Information
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.

porsche

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


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

99110635503
99110635502
N0195307

The product you are viewing cross references to these numbers
Special Order item
99157516103
Product Information
Product Information
Centre radiator air deflector.

porsche

Fits:
Porsche 991.2 Carrera 2017>> PDK transmission cars

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

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

99157516103
99157516103

The product you are viewing cross references to these numbers
Special Order item
9P1121687
Product Information
Product Information
Centre radiator gasket

porsche

Fits:
Porsche 991.2 2017>>
Porsche 982 (718) Boxster 2017>>
Porsche 982 (718) Cayman 2017>>

Click 'Zoom in' for large parts diagram.
Diagram ref no 12

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

9P1121687
9P1121687

The product you are viewing cross references to these numbers
Special Order item
9P1121687A
Product Information
Product Information
Centre radiator gasket.

porsche

Fits:
Porsche 991.2 2017>>
Porsche 982 (718) Boxster 2017>>
Porsche 982 (718) Cayman 2017>>

Click 'Zoom in' for large parts diagram.
Diagram ref no 13

Price is for each.

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

9P1121687A
9P1121687A
9P1121687

The product you are viewing cross references to these numbers
Special Order item
99110653802
Product Information
Product Information
Centre radiator lower rubber mounting. Sold each.

porsche

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

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

99110653802
99110653802

The product you are viewing cross references to these numbers
Special Order item
99110633701
Product Information
Product Information
Centre radiator sealing frame.

porsche

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

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

99110633701
99110613702

The product you are viewing cross references to these numbers
Special Order item
9P112148
Product Information
Product Information
Centre radiator side cover.

porsche

Fits:
Porsche 991.2 2017>>
Porsche 982 (718) Boxster 2017>>
Porsche 982 (718) Cayman 2017>>

Click 'Zoom in' for large parts diagram.
Diagram ref no 11 (left) / 12 (right)

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

9P112148
9P1121483
9P1121484

The product you are viewing cross references to these numbers
Special Order item
99110653701
Product Information
Product Information
Centre radiator upper rubber mounting. Sold each.

porsche

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

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

99110653701
99110653701

The product you are viewing cross references to these numbers
Special Order item
9P112133
Product Information
Product Information
Cowling For Water Radiator.

Fits:
Porsche 991 Gen II 2017>>
Porsche 982 (718) Boxster 2017>>
Porsche 982C (718) Cayman 2017>>

Diagram Ref No 26

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

9P112133
9P1121333
9P1121334

The product you are viewing cross references to these numbers
DISPLAYING 1 to 16 (of 40 products)
1 2 3
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.

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