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Engine Cooling
- 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
This is a damaged in transit part, offered for parts or refurbishment purposes only. Ideal for restoration specialists, collectors, or workshops looking for components at reduced cost.
NOTE: For spares, repair, or core replacement only.
Condition:
This RIGHT Radiator For Water Coolant Fluid is brand new and never been fitted. It has some transport damage which is repairable.
Please see the gallery of images before purchasing.
Fits:
- 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
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610613251
The product you are viewing cross references to these numbers
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MKII Turbo 2010-13
Fits:
Porsche 996 Turbo / GT2 / C4S 1998-05
Porsche 997 Turbo MK1 & MKII
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.
Click 'Zoom in' for large parts diagram.
Diagram Ref No 1.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610613
The product you are viewing cross references to these numbers
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MKII Turbo 2010-13
This OE Match coolant radiator is suitable for selected Porsche 996 C4S, Turbo and GT2 models, together with applicable 997 Turbo, GT2 and GT2 RS variants. Separate OE references identify the left- and right-hand radiators, so the required position must be confirmed before ordering.
Fits:
Porsche 996 Turbo / GT2 / C4S 1998 - 2005
Porsche 997.1 Turbo 2007 - 2009
Porsche 997.2 Turbo 2010 - 2013
Diagram ref no 1
What This Product Does
The radiator transfers heat from the circulating engine coolant to the surrounding airflow. This helps the water-cooling system regulate engine temperature during normal driving, low-speed operation and higher engine loads.
Functions
- Releases heat carried by the engine coolant.
- Supports stable coolant and engine operating temperatures.
- Works with the radiator fan and air guide to provide cooling airflow.
- Maintains coolant circulation through the front cooling assembly.
- Provides a replacement for a leaking, blocked or physically damaged radiator.
Technical Details
- OE reference 99610613174: left-hand radiator.
- OE reference 99610613272: right-hand radiator.
- Verified applications include 996 C4S and Turbo, 997.1 Turbo and GT2 with M97.70 engine, 997.2 Turbo 3.8L and 997.2 GT2 RS 3.6L.
- The radiator fan, air guide, supports, hoses and mounting components form part of the surrounding cooling assembly and should be inspected separately.
- Diagram Ref No 1.
Symptoms of Fault
- Coolant staining or dampness around the radiator core or end-tank seams.
- A sweet coolant smell or puddles beneath the front of the vehicle.
- Repeated low-coolant warnings or an unexplained drop in coolant level.
- Rising temperature in traffic, under load or at motorway speeds.
- Cooling fans operating more frequently than expected.
- Corroded, blocked, bent or damaged radiator fins.
- Coolant residue collecting on the front undertrays.
- Gurgling after shutdown where air has entered the cooling system.
Why Replacement Matters
A leaking or restricted radiator reduces the system’s ability to remove heat from the coolant. Continued coolant loss can introduce air into the system and lead to unstable operating temperatures. Replacement restores the integrity of the affected cooling circuit, while inspection of the hoses, joints, fan and mounting hardware can identify related age or impact damage.
FAQs
- Are the left and right radiators interchangeable?
No. Each side has a separate OE reference, so confirm the required position against the vehicle and existing component. - Can a radiator be restricted without leaking?
Yes. Internal deposits or external debris between the fins can reduce heat transfer without producing a visible coolant leak. - How can a radiator leak be distinguished from a hose leak?
Radiator faults commonly leave residue around the core or end-tank seams, while hose leaks tend to appear around connections. A cooling-system pressure test can help locate the source. - Should the hoses be checked during replacement?
Yes. Inspect nearby hoses, clamps, seals and mountings for ageing, cracking or coolant residue before reassembly. - Why can overheating be more noticeable in traffic?
Natural airflow is reduced at low speed, increasing reliance on the radiator core and electric cooling fan.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610613
The product you are viewing cross references to these numbers
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MKII Turbo 2010-13
Fits:
Porsche 996 Turbo / GT2 / C4S 1998-05
Porsche 997 Turbo MK1 & MKII
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.
Click 'Zoom in' for large parts diagram.
Diagram Ref No 1.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610613
The product you are viewing cross references to these numbers
Special Offer Engine Cooling Parts – Discounted Genuine and Performance Cooling Components
Special Offer Engine Cooling Parts bring together discounted genuine, OEM-quality and performance cooling components designed to maintain optimal engine operating temperature and prevent overheating. This category features limited-time promotions and clearance pricing on essential cooling system parts from trusted automotive brands.
At Design911, our Special Offer Engine Cooling range includes radiators, coolant hoses, thermostats, water pumps, expansion tanks and performance cooling upgrades — all selected for precise fitment, durability and reliable temperature control.
What Do Engine Cooling Parts Do?
Engine cooling components regulate engine temperature and protect critical internal parts from heat-related damage. Key functions include:
• Dissipating excess heat through radiators and cooling fans
• Circulating coolant via water pumps and hoses
• Maintaining correct operating temperature with thermostats
• Preventing pressure build-up using expansion tanks and caps
• Supporting performance applications with upgraded cooling solutions
A properly functioning cooling system helps prevent engine overheating, gasket failure and long-term mechanical damage.
Why Choose Special Offer Engine Cooling Parts?
Special Offer Engine Cooling Parts are ideal for customers seeking reliable maintenance or performance upgrades at reduced pricing. Benefits include:
• Discounted genuine and OEM-quality cooling components
• Access to premium brands at promotional prices
• Cost-effective preventative maintenance solutions
• Limited-time savings on essential engine protection parts
• Trusted compatibility with Porsche and performance vehicles
At Design911, all discounted cooling parts meet strict quality and fitment standards to ensure reliable operation and long-term durability.
When Should You Replace Engine Cooling Components?
Special Offer Engine Cooling Parts are ideal when:
• Addressing overheating issues
• Replacing ageing hoses, radiators or water pumps
• Performing preventative maintenance
• Upgrading cooling performance for track or high-output engines
• Taking advantage of limited-time promotional pricing
Replacing worn cooling components promptly helps protect your engine from costly repairs and maintains consistent performance.
