do not press the back button…
Enter your VAT number here and click Verify:
Your details have been verified. VAT number registered to:
,
.
Your order will now be zero rated for VAT purposes. We reserve the right to verify these details after your order request has been made and reinstate VAT if required.
Your VAT details were not recognised or were invalid. Your VAT number must be matched to your Billing Country as specified above. This is currently specified as . You do not need to enter the country code part of your VAT number as this has already been selected in your billing address details above.
The VAT number checking service is currently offline. Please supply your VAT details within the comments or special instructions field below and we will apply a VAT discount after placing your order request.
- Porsche 971.1 Panamera V6 3.0L 2WD (330 Hp) 2017-20
- Porsche 971.1 Panamera 4 V6 3.0L 4WD (330 Hp) 2017-20
- Porsche 971.1 Panamera 4 V6 3.0L 4WD Executive 2017-20
OE Match coolant radiator.
Fits
Porsche 971.1 Panamera 3.0L 2017 - 2021
* with 'Standard' equipment (option code: A8C)
* without alternative drive system (option code: 0K0)
Check fitment for your specific vehicle (model, year, engine) before ordering.
What This Product Does
Heated coolant passes through the radiator, where its heat is released into the surrounding airflow. The cooled fluid then circulates back through the engine. Cooling fans assist airflow when needed, while the radiator forms part of the system that controls operating temperature.
Functions
- Releases heat carried by circulating coolant.
- Helps control engine operating temperature.
- Returns cooled fluid to the engine cooling circuit.
Technical Details
- Product type: engine coolant radiator / coolant cooler.
- Brand: OE Match.
- Supplied reference numbers: 9A712125310 and PAE121253A.
- Application requirements: equipment code A8C and drive-system code 0K0.
Symptoms of Fault
- Temperature climbing during demanding driving or warm weather.
- Falling coolant level, damp radiator surfaces or puddles beneath the vehicle.
- Sweet odour or dried deposits near radiator seams.
- Discoloured coolant containing corrosion residue or debris.
- Dashboard warning indicating excessive engine temperature.
- Weak cabin heating when coolant is low or circulation is impaired.
- Steam beneath the bonnet associated with escaping or boiling coolant.
- Damaged fins, visible corrosion or gurgling following shutdown.
Why Replacement Matters
Leaks and restricted coolant passages can reduce the radiator's ability to remove heat. Prolonged overheating may damage cylinder heads and gaskets, affect engine oil and lead to further repairs. Renewing a radiator with confirmed damage addresses the faulty component rather than repeatedly topping up lost coolant.
Inspect nearby hoses, joints, seals and mounting hardware during the repair. Similar symptoms can arise elsewhere in the cooling circuit, so establish the source before replacing parts.
FAQs
How can a radiator leak be distinguished from a hose leak?
Look for moisture or deposits on the radiator core and seams, then inspect hose connections. A cooling-system pressure test can help locate the source.
Can overheating occur without a visible leak?
Yes. Deposits inside coolant passages can restrict circulation without producing external seepage. Fan operation and thermostat behaviour also need checking.
What else should be inspected during replacement?
Check the pressure cap, thermostat, hoses and connections. Renew supporting components where inspection identifies deterioration rather than assuming every item needs replacement.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PAE121253A
The product you are viewing cross references to these numbers
- 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 C4S 3.6L 09/01-2005
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
The Series Resistor (OEM Part Number 996.616.101.00) is an essential component in the cooling system of Porsche 986 Boxster and 996 Carrera models. It controls the speed of the auxiliary radiator fan, allowing for both low and high-speed operation to keep your engine running at optimal temperatures.
Fits:
Porsche 986 Boxster 1997 - 2004
Porsche 996 C2 / C4 / C4S 1998 - 2005
Porsche 996 GT3 / GT3 RS 1999 - 2005
Diagram Ref No 4.
Why Replace Your Series Resistor?
Over time, heat and wear can cause the resistor to fail, leading to:
• Low-Speed Fan Failure: The fan may stop operating at low speeds, causing the engine temperature to rise.
• Erratic Fan Operation: The fan could run intermittently or at incorrect speeds, reducing cooling efficiency.
• Risk of Overheating: Poor cooling can result in engine overheating, potentially damaging critical components.
Common Symptoms of a Failing Resistor
• Fan Speed Issues: One fan may only operate at high speed, indicating a faulty resistor.
• Complete Fan Failure: In some cases, the fan may not activate at all.
• Persistent Engine Heat: Consistently high engine temperatures can signal a failing resistor.
Replacing a worn or damaged series resistor ensures your Porsche maintains proper cooling performance and protects your engine from overheating.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99661610100
The product you are viewing cross references to these numbers
- 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
Restore efficient engine cooling and dependable temperature control with this OE Match Water Coolant Radiator, designed for compatible Porsche applications.
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
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.
The radiator is one of the principal components of the engine cooling system. Hot coolant leaving the engine passes through the radiator's internal channels, where heat is transferred through the radiator core and dissipated into the surrounding airflow. The cooled fluid then continues through the cooling circuit to help maintain the engine within its intended operating temperature range.
Porsche cooling systems operate under demanding conditions, and the radiator must withstand constant thermal cycling, cooling-system pressure, road debris and environmental contamination. Over time, the core can become damaged or restricted, while corrosion, deteriorated joints or physical impact can cause coolant leaks.
A failing radiator can reduce the cooling system's ability to control engine temperature and may eventually result in coolant loss or overheating. Replacing a damaged, leaking or inefficient unit with this OE Match Radiator helps restore cooling performance and protect the engine from excessive temperatures.
Diagram Ref No 1
What This Product Does:
Symptoms Of Wear Or Failure:
Why Replacement Matters:
- The radiator is responsible for releasing a substantial amount of the heat absorbed by the engine coolant.
- If its ability to dissipate heat is reduced, coolant may return to the engine at a higher temperature than intended. If the radiator also leaks, the cooling system may gradually lose coolant and eventually become unable to control engine temperature effectively.
- Replacing a defective radiator before severe overheating occurs can prevent substantially more expensive repairs.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610613
The product you are viewing cross references to these numbers
- Porsche Boxster S 986 3.2L 1999-02
- 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 C4S 3.6L 09/01-2005
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
Radiator for water coolant fluid (also known as Coolant radiator, Water radiator or Water coolant fluid cooler) is the backbone of a Porsche engine’s thermal management system. It dissipates heat from the engine’s water-based coolant, stabilising engine temperatures, preserving performance, efficiency, and long-term reliability.
Fits:
Porsche 986 Boxster 3.2L 2000 - 2004
Porsche 996 C2 / C4 / C4S / GT3 1998 - 2005
This product supersedes Porsche's old part numbers: 99610603750, 99610603751, 99610603752
Diagram Ref No 1.
The radiator’s main role is to remove heat from the engine coolant that carries thermal energy away from the engine block and cylinder head. Hot coolant flows into the radiator, where it travels through a series of fine tubes and cooling fins. Air passing through the radiator core (from vehicle motion and fans) absorbs the heat, lowering coolant temperature before it returns to the engine.
Proper heat rejection helps:
• Maintain optimal engine operating temperature
• Prevent overheating under everyday and high-load conditions
• Support fuel efficiency and emission control
• Preserve engine component durability and longevity
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610603753
The product you are viewing cross references to these numbers
- 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 OE Match Water Radiator Set includes both left and right water radiators - designed as direct-fit replacements for the original factory cooling cores on Porsche 996 (911) & 986 Boxster models. Together they form the central cooling system components responsible for controlling engine temperature and preventing overheating.
SET OF 2
Fits:
Porsche 996 C2 / C4 / GT3 1997 - 2005
Porsche 986 Boxster 1997 - 2004
The cooling system of the Porsche 996 and 986 is based on two radiators (left and right) that effectively remove heat from the engine coolant under all operating conditions, from everyday driving to dynamic use on the road.
Each radiator is engineered to match original Porsche specifications for:
• Core dimensions and fin density
• Mounting points and hose connections
• Coolant flow capacity
• Heat transfer performance
This OE Match radiator set delivers balanced cooling and thermal stability by replacing both cores at once, ensuring equal efficiency on each side of the system. Manufactured from high-quality materials with durable aluminium cores and corrosion-resistant tanks, these radiators offer long service life and effective heat rejection with reliable fitment.
Direct replacement for the original Porsche components, this set installs using the existing mounting brackets, hoses, and hardware, making it ideal for cooling system overhauls, radiator failure replacement, or preventative maintenance on higher-mile vehicles.
A failing radiator can lead to engine overheating, coolant loss, reduced performance, and even engine damage if left unaddressed. Symptoms such as rising temperature gauge readings, coolant leaks, or steam from the engine bay indicate a compromised cooling core. Replacing both radiators as a matched set ensures consistent cooling efficiency and balanced performance across the entire system.
Replace this radiator set if you notice:
• Persistent engine overheating
• Leaks or corrosion on radiator cores
• Bent, dented, or clogged cooling fins
• Reduced heater performance
• After front-end collision or cooling system service
• During routine coolant system overhaul
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
RADKIT99606.OEM
The product you are viewing cross references to these numbers
This kit is comprised of the following items: