Water / Coolant Radiators

Radiator Fan Resistor.

 


Fits:
Porsche 996 C4S 2002>>
Porsche 996 2004 (M095 - Special model "911 Anniversary Edition")


Click pictrue for large parts diagram.
Diagram Ref No 4.

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.



Fits:
Porsche 996 C2 / C4 / GT3 1997-05
Porsche 986 Boxster 1997-2004

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Related, superseded, cross reference or alternative numbers for comparison.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

Radiator For Water Coolant Fluid.
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:

• Removes excess heat from engine coolant.
• Provides a large surface area for heat dissipation.
• Allows hot coolant to flow through its internal passages.
• Transfers coolant heat into the surrounding airflow.
• Supports stable engine operating temperatures.
• Helps prevent engine overheating.
• Maintains coolant within the pressurised cooling circuit.
• Works with the water pump, thermostat, cooling fans, hoses and associated components.
• Supports efficient cooling during normal and demanding driving conditions.
• Replaces a leaking, damaged, corroded or restricted radiator.
• Helps restore cooling-system efficiency.
• Provides an OE Match replacement for compatible Porsche applications.  

Symptoms Of Wear Or Failure:

• Visible coolant leakage.
• Coolant collecting beneath the front of the vehicle.
• Low coolant warning.
• Coolant level repeatedly dropping.
• Engine running hotter than normal.
• Engine overheating.
• Temperature increasing during slow traffic.
• Temperature increasing under heavy engine load.
• Unusual temperature fluctuations.
• Coolant smell around the vehicle.
• Steam from the cooling-system area.
• Dried or crystallised coolant deposits on the radiator.
• Corrosion around the radiator core.
• Damaged or bent cooling fins.
• Physical damage to the radiator.
• Restricted or blocked radiator surfaces.
• Coolant staining around joints or connections.
• Reduced cooling performance.  

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

Radiator for water coolant fluid.



Fits:
Porsche 996 C2 / C4 / GT3 1997-05
Porsche 986 Boxster 1997-2004

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

Radiator for water coolant fluid

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

Radiator for water coolant fluid.



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

Radiator for water coolant fluid



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

Radiator Rubber Cap.



Fits:
Porsche 986 Boxster 1997-04
Porsche 996 C2/C4/C4S 1998-05
Porsche 996 GT3 2000-05

Click 'Zoom in' for large parts diagram.
Diagram Ref No 19

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99610633400

The product you are viewing cross references to these numbers

Radiator Water Bracket - Centre Bottom.


Fits:
Porsche 996 Turbo 2000-05

Click pictrue for large parts diagram.
Diagram Ref No 3.

Radiator Water Bracket - Centre Top.



Fits:
Porsche 996 Turbo 2000-05

Click picture for large parts diagram.
Diagram Ref No 2.

Radiator water bracket, Centre bottom.

 

Fits:
Porsche 996 GT2 2001-05

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Diagram Ref No 3.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99650441330

The product you are viewing cross references to these numbers

Radiator water bracket., Centre top



Fits:
Porsche 996 GT2 2001-05

Click 'Zoom in' for large parts diagram.
Diagram Ref No 2.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99650419530

The product you are viewing cross references to these numbers

Radiator Water Bracket.
Left or Right



Fits:
Porsche 986 Boxster 1997-05
Porsche 996 C2, C4, GT3 1997-05

Click pictrue for large parts diagram.
Diagram Ref No 7.

Please select below

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99650417

The product you are viewing cross references to these numbers

Radiator Water Drain Plug & Seal.



Fits:
Porsche 986 Boxster S - 2000 to  2004
Porsche 996 - 1997 to 2005
Porsche 996 GT3 - 1999 to 2005

Click picture for large parts diagram.
Diagram Ref No 10

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99610690100

The product you are viewing cross references to these numbers

Radiator Water Fan Cowling.



Fits:
Porsche 986 Boxster 1997-05
Porsche 996 C2 / C4 1998-05
Porsche 996 GT3 MKI

Click picture for large parts diagram.
Diagram Ref No 3.

Radiator Water Fan Cowling.



Fits:
Porsche 996 GT2, Turbo 1997-04

Click picture for large parts diagram.
Diagram Ref No 3.