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Track & Race Coolant Radiators
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster 986 2.7L 2003-04
CSF Complete Performance Radiator Kit – Left and Right
This complete high-performance cooling kit from CSF provides
a full radiator replacement solution for Porsche 986 Boxster models. Designed as a direct OE replacement with
motorsport-grade durability, the kit includes all three radiators along with
essential installation components.
Fits:
This makes it an ideal upgrade for ageing cooling systems or for drivers who want improved cooling performance and long-term reliability.
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:
99610613151
• RIGHT:
99610613251
What This Radiator Kit Does
The Porsche 986 Boxster 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 996 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.
7044KIT.5
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
Racing and high performance radiators for all Porsche models make a great performance upgrade as well as an incredibly durable and reliable OE replacement.
SET OF 2, for Left and Right side.
Fits:
Porsche 996 C2
Porsche 996 C4
Porsche 996 GT3 1997-05
Porsche 986 Boxster 1997-2004
Cross reference numbers:
• LEFT: 8MK376714291 / 99610613151 / 99610613181
• RIGHT: 8MK376713791 / 99610613251 / 99610613282
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.
7044KIT
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04

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: 8MK376714291 = 99610613151
Right: 8MK376713791 = 99610613251
Centre: 8MK376716651 , 99610603751, 99610603750,
Fits:
Porsche 996 C2
Porsche 996 C4
Porsche 996 GT3 1997-05
Porsche 986 Boxster S
Porsche 986 Boxster Tiptronic
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
RADKIT99603
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
Upgrade your Porsche’s cooling performance with this premium radiator and A/C condenser set from CSF - engineered for enhanced heat management, durability, and reliability on both the street and track.
Fits:
Porsche 996 911 (Carrera, 4, 4S, Targa, & GT3) 1999-2005
Porsche 986 Boxster (Base, S, Roadster, & Roadster S) 1997-2005
Cross reference numbers:
A/C Radiators: 9975739101, 99657311100
Water Radiator LEFT: 8MK376714291 / 99610613151 / 99610613181
Water Radiator IGHT: 8MK376713791 / 99610613251 / 99610613282
Set Includes:
• 2 × CSF 7044 All-Aluminium Coolant Radiators - high-performance water cooling radiators designed specifically for Porsche 996, Boxster 986, and GT3 models. Built with 100% TIG-welded aluminium, CNC-machined brackets and B-Tube core technology for increased airflow and superior coolant heat dissipation. Drop-in fit requires no modifications and supports both left & right side installations.
• 2 × CSF 8381 A/C Condensers - direct-fit aluminium air conditioning radiators that outperform OEM units. Featuring a modern parallel-flow core and multi-louvered fins for improved refrigerant cooling, optimized airflow to the engine radiator, and increased overall A/C efficiency.
Performance Benefits:
• Enhanced cooling capacity for coolant and refrigerant systems - ideal for high-heat conditions, spirited driving, and track use.
• Superior heat exchange performance thanks to optimized core designs and precision aluminium construction.
• Improved engine reliability and A/C performance, reducing overheating and maintaining consistent operating temperatures.
• OEM-plus quality that fits like stock but performs like a high-end upgrade.
Perfect For:
• Porsche enthusiasts looking to replace ageing or underperforming radiators and condensers - especially on Carrera, C4, GT3, Boxster, and other 996/986 variants.
• Upgrade both your cooling and air conditioning systems in one complete, performance-oriented package - keep your Porsche running cooler and functioning stronger with CSF quality.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
RADKIT996-986
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
Sold each, fits Left or Right side.
Fits:
Porsche 996 C2 1998 - 2005
Porsche 996 C4 1998 - 2005
Porsche 996 GT3 1997 - 2005
Porsche 986 Boxster 1997 - 2004
Cross reference numbers:
• LEFT - 8MK376714291 / 99610613151 / 99610613181
• RIGHT - 8MK376713791 / 99610613251 / 99610613282
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.
7044
The product you are viewing cross references to these numbers
High-Performance Track & Race Coolant Radiators for Motorsport-Level Engine Cooling
Track and race coolant radiators are engineered to withstand the extreme thermal demands of motorsport, high-revving engines and repeated full-throttle operation. Designed to offer superior cooling capacity compared to standard radiators, these units feature enhanced cores, high-flow fin structures, improved heat dissipation and reinforced construction. Whether preparing for track days, competitive racing or spirited performance driving, upgrading to a race-spec radiator is essential for maintaining safe engine temperatures under severe conditions.
These radiators provide robust cooling efficiency, helping prevent overheating, power loss and premature wear—making them a crucial component for any high-performance build.
What Track & Race Coolant Radiators Do
Performance radiators deliver significantly improved cooling
by:
- Increasing
coolant flow through larger or multi-row cores
- Maximising
heat transfer with high-efficiency fin designs
- Managing
extreme temperatures produced during racing or track sessions
- Preventing
overheating when engine output and ambient heat are at their highest
- Improving
coolant stability during repeated high-load cycles
- Supporting upgraded engines, forced induction setups or heavy performance tuning
These radiators maintain optimal operating temperatures where standard cooling components cannot cope.
Why Standard Radiators Fail Under Track Conditions
Racing conditions expose radiators to far greater stress
than road use. Failures often occur due to:
- Heat
saturation where standard cooling cores cannot dissipate enough heat
- Coolant
boiling or overflow caused by extreme temperatures
- Weak
core construction leading to cracks or leaks
- Blocked
or restricted fins reducing airflow
- Plastic
end-tank fatigue failing under high thermal load
- Vibration
damage from track surfaces and aggressive driving
- Insufficient coolant flow in performance-modified engines
Symptoms include rising coolant temperatures, steam, coolant loss, reduced power, limp-mode activation or overheating during extended high-load operation.
Why You Should Upgrade to a Track & Race Coolant Radiator
Replacing the standard radiator with a high-quality, motorsport-grade alternative engineered for superior heat management ensures consistent performance and protects the engine from severe damage.
Key benefits include:
- Stable coolant temperatures under extreme load
- Improved reliability during track days, racing or spirited driving
- Enhanced heat dissipation and faster cooling recovery
- Stronger construction with alloy tanks and reinforced cores
- Prevention of head gasket failure, detonation and thermal stress
- Longer life for coolant hoses, water pumps and thermostats
- Increased confidence and capability for high-performance driving
A race-spec radiator is one of the most impactful upgrades for track-driven vehicles or modified engines.