Radiators

CSF Complete Performance Radiator Kit – Left and Right

This complete high-performance cooling kit from CSF provides a full radiator replacement solution for Porsche 718 Boxster and Cayman models. Designed as a direct OE replacement with motorsport-grade durability, the kit includes all three radiators along with essential installation components.

Fits:

• Porsche Boxster 718 2.0L Manual (300 Bhp) 2017>>
• Porsche Boxster 718 2.0L PDK (300 Bhp) 2017>>
• Porsche Boxster S 718 2.5L Manual (350 Bhp) 05/2017>>
• Porsche Boxster S 718 2.5L PDK (350 Bhp) 05/2017>>
• Porsche Boxster T 718 2.0L Manual (300 Bhp) 01/2019>>
• Porsche Boxster T 718 2.0L PDK (300 Bhp) 01/2019>>
• Porsche Boxster GTS 718 2.5L Manual (365 Bhp) 05/2017>>
• Porsche Boxster GTS 718 2.5L PDK (365 Bhp) 05/2017>>
• Porsche Boxster GTS 718 4.0L Manual (400 Bhp) 01/2019>>
• Porsche Boxster GTS 718 4.0L PDK (400 Bhp) 01/2019>>
• Porsche Boxster Spyder / Sypder RS 718 4.0L 01/2019>>
• Porsche Boxster 25 Years 718 4.0L Manual (400 Bhp) 01/2020>>
• Porsche Boxster 25 Years 718 4.0L PDK (400 Bhp) 01/2020>>
• Porsche Cayman 718 2.0L Manual (300 Bhp)
• Porsche Cayman 718 2.0L PDK (300 Bhp)
• Porsche Cayman S 718 2.5L Manual (350 Bhp)
• Porsche Cayman S 718 2.5L PDK (350 Bhp)
• Porsche Cayman T 718 2.0L Manual (300 Bhp)
• Porsche Cayman T 718 2.0L PDK (300 Bhp)
• Porsche Cayman GTS 718 2.5L Manual (365 Bhp)
• Porsche Cayman GTS 718 2.5L PDK (365 Bhp)
• Porsche Cayman GTS 718 4.0L Manual (400 Bhp)
• Porsche Cayman GTS 718 4.0L PDK (400 Bhp)
• Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L
• Porsche Cayman GT4 Clubsport
• Porsche Cayman GT4 RS Clubsport 2020-2024

Kit Contents

• Left radiator
• Right 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:  9P1121251
• RIGHT:  9P1121252

What These Radiators Kit Do

The Porsche 718 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

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: 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