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Radiators
CSF Complete Performance Radiator Kit – Left, Right and Centre
This complete high-performance cooling kit from CSF provides
a full radiator replacement solution for Porsche 991 turbo models. Designed as a direct OE replacement with
motorsport-grade durability, the kit includes all three radiators along with
essential installation components.
Fits:
Kit Contents
• Left radiator
• Right radiator
• Centre radiator
• Radiator hoses
• Hose clips
• Radiator mounting buffers
• Blanking caps
This comprehensive kit allows you to replace the entire radiator system in one installation, ensuring optimal cooling performance and reducing the risk of future leaks or component failures.
Cross Reference Numbers
• LEFT:
99110614101
• RIGHT: 99610614201
• CENTRE: 99110613801 / 99110613802
What These Radiators Kit Do
The Porsche 991 turbo cooling system relies on three front-mounted radiators to dissipate heat from the engine coolant. These radiators maintain stable engine operating temperatures by transferring heat away from the coolant through airflow across the radiator core.
A properly functioning radiator system helps:
• Prevent engine overheating
• Maintain optimal engine performance
• Protect cylinder heads and gaskets
• Improve cooling during heavy traffic or hot weather
• Support track and performance driving conditions
Why Porsche Radiators Fail
Over time, original radiators can suffer from:
- Road debris damage
- Corrosion and coolant contamination
- Plastic end tank fatigue
- Blocked cooling cores
Replacing all three radiators together ensures balanced cooling performance and prevents repeated labour costs.
Why Upgrade to CSF Performance Radiators?
All-Aluminium Motorsport Construction
CSF radiators are engineered using full aluminium construction with precision
welding and reinforced joints, improving strength and durability compared with
standard replacements.
High Efficiency Core Design
The advanced 2-row core with CSF B-Tube technology increases cooling capacity
by approximately 20 percent compared with conventional radiator tube designs.
True Drop-In Installation
Designed as OE-specific replacements with correct mounting points and
quick-connect inlet and outlet pipes for easy installation without
modification.
Track-Tested Reliability
These radiators have been tested under extreme conditions, including high
ambient temperatures and track environments.
Engineering Highlights
• B-Tube technology for maximum heat transfer efficiency
• High efficiency louvered fin design
• OE radial and deep drawn aluminium end tanks
• Wind tunnel tested core for optimal airflow cooling
• Reinforced mounting design for fan shrouds and condensers
• CNC machined brackets and fittings
• Racing style all aluminium drain plug
• Direct OE fitment requiring no modifications
Manufacturing Quality
• Brazed in CAB furnace for strength and consistency
• ISO 9001 / ISO 9002 certified production
• Dedicated in-house tooling and engineering facilities
• Master-class TIG welding for precision joints
Testing and Quality Control
• Individual leak testing
• Vibration cycle testing
• Thermal cycle testing
• Burst pressure testing repeated 10,000 times
• Salt spray corrosion resistance testing
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
7069KIT.1
The product you are viewing cross references to these numbers
- Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014-16
- 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
Racing and high performance radiators for all Porsche models make a great performance upgrade as well as an incredibly durable and reliable OE replacement.
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: 99110614101
Right: 99110614201
Centre: 99110613802 / 99110603890
Fits:
Porsche 991 turbo / turbo S - 2009 to 2016
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
RADKIT99103.CSF
The product you are viewing cross references to these numbers
- Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014-16
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:
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
The product you are viewing cross references to these numbers
- Porsche Boxster 981 Spyder 3.8L 2016
- Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014-16
- Porsche 991.1 GT3 3.8L (475 Bhp) 2014-16
- Porsche 991.1 GT3 RS 4.0L (500 Bhp) 2015-16
- 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 Cayman GT4 3.8L 2015-16
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
The product you are viewing cross references to these numbers
- Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014-16
- Porsche 991.1 GT3 3.8L (475 Bhp) 2014-16
- Porsche 991.1 GT3 RS 4.0L (500 Bhp) 2015-16
- 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
Maintain efficient charge-air cooling, consistent boost performance and dependable turbocharged engine operation with these Porsche Radiator Intercoolers, part numbers 99111063973 and 99111064073. Designed for compatible Porsche applications, the intercoolers form a critical part of the engine's forced-induction and charge-air system.
Fits:
- Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014-16
Diagram Ref No 1 And 2
When a turbocharger compresses intake air, the air temperature rises significantly. Hotter air is less dense and can reduce the amount of oxygen available for combustion. The intercooler acts as a heat exchanger, removing excess heat from the compressed charge air before it reaches the engine.
By reducing charge-air temperature, the intercooler helps provide a denser intake charge and supports consistent engine performance, particularly during acceleration and sustained high-load operation.
The intercooler must also maintain a sealed path for pressurised intake air. Cracks, damaged connections, deteriorated seals or physical damage can allow boost pressure to escape, resulting in reduced power and potentially triggering engine-management faults.
Replacing a damaged or inefficient component with the correct Porsche Radiator Intercooler 99111063973 / 99111064073 helps restore effective charge-air cooling and boost-system integrity.
What This Product Does:
Symptoms Of Wear Or Failure:
- Noticeable loss of engine power.
- Poor or sluggish acceleration.
- Reduced turbocharger boost.
- Inconsistent power delivery.
- Check engine or engine-management warning light.
- Underboost-related diagnostic fault codes.
- Hissing or rushing-air noises under acceleration.
- Actual boost pressure failing to reach the requested value.
- Intermittent power loss under heavy acceleration.
- Increased charge-air temperatures.
- Engine entering a reduced-power or protective mode.
- Increased fuel consumption.
- Oil residue around intercooler connections or leaking areas.
- Cracks or physical damage to the intercooler.
- Damaged inlet or outlet connections.
- Impact damage. Loose or leaking charge-air connections.
- Pressure loss detected during boost-system testing.
Why Replacement Matters:
- An intercooler performs two particularly important functions: cooling compressed intake air and containing boost pressure.
- If the intercooler develops a crack or leak, some of the pressurised air produced by the turbocharger can escape before reaching the engine. The result can be reduced boost, slower acceleration and a noticeable loss of performance.
- The engine control unit monitors boost-system operation and may detect a difference between requested and actual pressure. A sufficiently large leak can trigger underboost fault codes and may cause the engine to enter a reduced-performance strategy.
- Cooling efficiency is equally important. Turbocharging naturally increases intake air temperature, and the intercooler is responsible for removing much of this additional heat. If cooling performance deteriorates, intake temperatures can rise and the density of the incoming air can decrease.
- During demanding driving, excessive charge temperatures may cause the engine-management system to modify operating parameters to control thermal loads, potentially reducing available performance.
- A leaking or damaged intercooler can therefore affect both power delivery and thermal management.
- Replacing a defective component with the correct Porsche Radiator Intercooler 99111063973 / 99111064073 helps restore charge-air cooling efficiency, maintain boost pressure and support consistent turbocharged engine performance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9911106
The product you are viewing cross references to these numbers
- Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014-16

DesignTek Porsche intercoolers produces high-flow rate and dramatic temperature reduction which are mainly contributed by two key factors. Firstly, the great temperature reduction is accomplished by a 40% larger than stock sized intercooler cores in which each core has the capacity flow rate of 750 CFM. Secondly, which in our opinion is the most important element of an IC; the inlet/outlet end-tanks. Our end-tanks are a one piece cast aluminium construction design, formed with little to no corners and are also fully polished on the insides to increase air velocity; therefore minimizes welding points and greatly increases air flow and reduction in pressure drop which yields to improved efficiency. Also please note that all of our intercoolers come only in high polished finished for that uncompromised appearance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99111063055
The product you are viewing cross references to these numbers
- Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014-16
- 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
Fits:
Porsche 991 Turbo
Porsche 991 Turbo S
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9911106
The product you are viewing cross references to these numbers
- Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014-16
RIGHT Radiator Intercooler.
Restore efficient charge-air cooling, correct boost pressure and consistent turbocharged engine performance with this OE Match RIGHT Radiator Intercooler. Designed for compatible Porsche applications, this intercooler is specified for the right-hand side of the vehicle's charge-air system.
Fits:
- Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014-16
Diagram Ref No 2
Turbochargers increase engine performance by compressing the incoming air before it enters the engine. However, compression also increases air temperature. The intercooler acts as a heat exchanger, removing excess heat from the compressed air before it reaches the combustion chambers.
Cooling the charge air increases its density and helps provide the engine with the intended mass of air under boost. This supports responsive acceleration, consistent power delivery and efficient engine operation, particularly during sustained high-load driving.
The intercooler also forms part of the pressurised boost circuit. Cracks, damaged connections, deteriorated seals or physical damage can allow compressed air to escape, resulting in reduced boost pressure and engine performance.
This OE Match Right Radiator Intercooler provides a high-quality replacement for a leaking, damaged or inefficient original component.
What This Product Does:
- Reduced engine power.
- Sluggish acceleration.
- Loss of turbocharger boost.
- Inconsistent power delivery.
- Poor throttle response.
- Check engine or engine-management warning light.
- Underboost-related diagnostic fault codes.
- Hissing or rushing-air noises during acceleration.
- Actual boost pressure lower than requested boost pressure.
- Intermittent loss of power under heavy load.
- Increased charge-air temperatures.
- Engine entering a reduced-power or protective mode.
- Increased fuel consumption.
- Oil residue around intercooler connections.
- Cracks or splits in the intercooler.
- Damaged inlet or outlet connections.
- Impact damage. Loose or leaking charge-air connections.
- Pressure loss identified during boost-system testing.
Why Replacement Matters:
- The intercooler performs two critical functions within a turbocharged engine: cooling the compressed intake charge and maintaining a sealed path for boost pressure.
- If the intercooler develops a crack or leak, some of the compressed air produced by the turbocharger can escape before reaching the engine. Even a relatively small leak can affect boost performance, while a significant leak can result in noticeable power loss and underboost faults.
- The engine control unit continually monitors boost-system performance. If actual boost pressure remains below the requested value, the ECU may record diagnostic faults and, depending on the severity of the problem, limit engine performance as a protective measure.
- Efficient charge-air cooling is equally important. Hotter intake air is less dense, reducing the amount of oxygen available within a given volume of air. Higher intake temperatures can therefore affect engine performance, particularly during sustained acceleration and demanding driving.
- If charge temperatures become excessive, the engine-management system may alter boost, ignition or other operating parameters to protect the engine.
- Replacing a damaged component with this OE Match Right Radiator Intercooler helps restore boost-system integrity, effective charge-air cooling and consistent turbocharged engine performance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99111064073
The product you are viewing cross references to these numbers
- Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014-16
Porsche Performance Radiators - Engine Cooling & Thermal Control Upgrades
Radiators are a critical part of the engine cooling system, responsible for dissipating heat and maintaining optimal operating temperatures. In performance-driven, tuned, or high-mileage Porsche engines, upgraded radiators play a vital role in preventing overheating, reducing thermal stress, and protecting engine components under sustained load.
Available from Design911, Porsche performance radiators are engineered to deliver increased cooling efficiency, improved airflow, and enhanced durability—making them essential upgrades for road, track, and high-performance applications.
What Do Radiators Do?
Radiators regulate engine temperature by transferring heat away from the coolant.
Core Functions:
- Dissipate engine heat efficiently.
- Maintain stable operating temperatures.
- Prevent overheating under load.
- Support consistent engine performance.
- Protect internal engine components from heat damage.
Effective cooling is essential for engine reliability and longevity.
Why Do Radiators Fail?
Standard radiators can degrade over time due to age,
contamination, and increased thermal demand. Common failure causes include:
- Internal blockage from debris or sediment.
- External fin corrosion or damage.
- Coolant leaks from plastic end tanks or seals.
- Reduced efficiency due to age and contamination.
- Increased heat load from tuned or track-driven engines.
A failing radiator can lead to overheating, coolant loss, and serious engine damage if left unresolved.
Why Upgrade to a Performance Radiator?
Performance radiators are designed to handle higher thermal loads more effectively.
Upgrade Benefits:
- Increased cooling capacity and heat dissipation.
- Improved airflow and coolant flow efficiency.
- Stronger materials for enhanced durability.
- Reduced risk of overheating during spirited or track driving.
- Ideal upgrade for tuned and high-output engines.
Upgrading the radiator helps protect engine reliability while supporting performance enhancements.
Highlights
- Porsche performance radiator upgrades
- Improved cooling efficiency and heat management
- Designed for tuned and high-performance engines
- Enhanced durability and long service life
- Essential upgrade for track and performance use