Coolant Bottles / Expansion Tanks

Antifreeze 1Ltr Bottle Concentrate 5 Years protection
1:1 ratio for -36°C protection
1:2 ratio for -20°C protection

Features:
Anti-freeze & Summer Coolant is an ethylene glycol based antifreeze and engine coolant, incorporating the latest in Organic Acid Technology (OAT). It offers winter protection down to -36°C, whilst has been developed to replace BS6580 (2010) and VW G-12/TL-774D & VW G-12+/TL-774F, MAN 278 & MAN 324, MB 325.3, Renault 41-01-001. It can be left in the system as a coolant and rust inhibitor for up to a maximum of 5 Years.

Benefits:
Provides excellent protection against corrosion
Significantly reduces the likelihood of cavity erosion

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00004330194

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Coolant / Antifreeze 1Ltr Top-up Bottle - Long Life 5 Year Red



Anti Freeze, please check your vehicle handbook for applications

Mix 50/50 with distilled water for best results.

This product supersedes Porsche's old part numbers:
- 000 043 301 03

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00004330515

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Coolant / Antifreeze 20Ltr Garage Bottle (Concentrated) - Long Life 5 Year Red

Anti Freeze
Workshop or Garage can containing 20Ltrs.

Meets the performance specifications for the following manufactures.
Audi, Ford, Isuzu, Renault, Jaguar, Mecedes Benz,
Saab, Seat, Skoda, Vauxhall, Volkswagen.

Related reference numbers
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52377048T

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Replacement bleed valve cap with 8 screws and seal



Fits:
Porsche 996 1998-05
Porsche 997 MKI 2005>>
Porsche 986 Boxster 1997-04
Porsche 987 Boxster 2005>>
Porsche 987C Cayman 2005>>

This product supersedes Porsche's old part numbers:
- 99610634700
- 99610634701

Click 'Zoom in' for large parts diagram.
Diagram ref no 3, 4, 11 and 12.

Related reference numbers
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99610634702

The product you are viewing cross references to these numbers

Replacement bleed valve cap with 8 screws and seal.
Does NOT come with these seals 99970737040, 99970737140.



Fits:
Porsche 996 1998-05
Porsche 997 MKI 2005>>
Porsche 986 Boxster 1997-04
Porsche 987 Boxster 2005>>
Porsche 987C Cayman 2005>>


This product supersedes Porsche's old part numbers:
- 99610634700
- 99610634701

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99610634702

The product you are viewing cross references to these numbers

Replacement filler cap.



Fits:
Porsche 996 1998-05
Porsche 997 2005>>
Porsche 986 Boxster 1997-04
Porsche 987 Boxster 2005>>
Porsche 987C Cayman 2005>>

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

99610644704

The product you are viewing cross references to these numbers

Coolant bottle level sensor.

Fits:
Porsche 986 Boxster 1997-04
Porsche 987 Boxster MKI 2005-08
Porsche 996 Carrera/ Turbo / GT3 1998-04
Porsche 997 MKI & MKII Carrera / Turbo/ GT3 2005>>
Porsche Carrera GT 2003-06

This product supersedes Porsches old part number:
- 99664150300

Diagram ref no 4

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

99764150300

The product you are viewing cross references to these numbers

Coolant bottle level sensor.

Fits:
Porsche 986 Boxster 1997-04
Porsche 987 Boxster MKI 2005-08
Porsche 996 Carrera/ Turbo / GT3 1998-04
Porsche 997 MKI & MKII Carrera / Turbo/ GT3 2005>>
Porsche Carrera GT 2003-06

This product supersedes Porsches old part number:
- 99664150300

Diagram ref no 4

Related reference numbers
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99764150300

The product you are viewing cross references to these numbers

Coolant expansion tank bottle.



Fits:
Porsche 996 C2 / C4 1997-2000
Porsche 996 GT3 MKI 1997-2000

Every car has its weak points, and although the Boxster and 996 has very few, one of the items to keep an eye on is the coolant recovery tank. Over time it becomes brittle and has a tendency to crack and leak coolant into the rear trunk area in the Boxster. A simple preventative measure is to replace your tank with a genuine Porsche recovery tank.

Related reference numbers
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99610614756

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Coolant expansion tank bottle.



Fits:
Porsche 996 C2 / C4 1997-2000
Porsche 996 GT3 MKI 1997-2000

Every car has its weak points, and although the Boxster and 996 has very few, one of the items to keep an eye on is the coolant recovery tank. Over time it becomes brittle and has a tendency to crack and leak coolant into the rear trunk area in the Boxster. A simple preventative measure is to replace your tank with a OE MATCH recovery tank.

Related reference numbers
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99610614756

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Replacement Coolant reservoir / expansion tank cap.
This coolant expansion tank cap is a direct replacement for Porsche 996 (1998–2005) and also fits Boxster (986/987), Cayman, and 997 models, upgrading earlier versions with improved sealing and pressure control.

Fits:
Porsche 996 1998 - 2005
Porsche 997.1 2005 - 2008
Porsche 986 Boxster 1997 - 2004
Porsche 987.1 Boxster 2005 - 2008
Porsche 987C.1 Cayman 2005 - 2008

Diagram ref no 5

This cap serves as the pressure seal for the coolant expansion tank, keeping the cooling system at the correct pressure. It regulates venting to the overflow reservoir, preventing blowback, leaks, and overpressure while helping avoid coolant loss, boiling, and overheating.

It replaces earlier versions: 99610644700, 99610644701, 99610644702, 99610644703

Why replacement matters:
• An old or worn cap may fail to hold pressure, causing coolant to boil, vaporize, or overflow
• A bad cap can allow air to enter the cooling system, leading to overheating, hot spots, or poor cooling performance
• A leaking or weak cap can lead to gradual coolant loss, requiring refills and risking engine damage

Installing an OE-Match version restores proper pressure control, reliable sealing, and helps maintain engine temperature stability.


Related reference numbers
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99610644704

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Drain Hose For Coolant Reservoir.
The Porsche Drain Hose for Coolant Reservoir is a genuine OEM component that ensures your cooling system operates efficiently under all conditions. This hose connects the coolant reservoir to the overflow system, allowing excess coolant to safely flow into the expansion tank when system pressure rises.

Fits:

• 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 TURBO 2000-05
• Porsche 996 GT2 2001-05
• Porsche 996 GT3 MKI 1999-02
• Porsche 996 GT3 MKII 2003>>
• Porsche 997 Carrera 2 3.6L 2005-08
• Porsche 997 Carrera 2S 3.8L 2005-08
• Porsche 997 Carrera 4 3.6L 2005-08
• Porsche 997 Carrera 4S 3.8L 2005-08
• Porsche 997 TURBO 2007-09
• Porsche 997 GT3 2007-09
• Porsche 997 GT2 2007-09
• Porsche 997 MKII Carrera C2 3.6L 2009-12
• Porsche 997 MKII Carrera C4 3.6L 2009-12
• Porsche 997 MKII Carrera C2S 3.8L 2009-12
• Porsche 997 MKII Carrera C4S 3.8L 2009-12
• Porsche 997 MKII GT3 2010-11
• Porsche 997 MKII Turbo 2010-13
• Porsche 997 MKII GT2 RS 2011-13

What This Product Does:
This hose functions as a drain / overflow path in the cooling system. When coolant pressure or volume is high (due to heat, expansion), excess coolant flows into the reservoir or overflow tank via this hose.

Symptoms / Signs Of A Faulty / Damaged Hose:

• Coolant leaks (weeping or dripping) around the reservoir, hose connection points, or under the car.
  
• Overheating or fluctuating temperatures, if coolant isn’t flowing properly or the overflow path is blocked.
  
• Loss of coolant in the reservoir over time, without other visible leaks.
  
• A hose that is cracked, brittle, perished, or has collapsed (blocking flow).
• Bubbling or gurgling noises in the cooling system or reservoir due to trapped air or improper overflow.
• Overflow tank that doesn’t fill or returns little coolant on cooling — i.e., the system is not cycling properly through the reservoir.

Why Replacement Matters:

• Ensures the overflow system works correctly — letting excess coolant go to the reservoir instead of causing pressure issues or spillage.
  
• Prevents coolant loss or leaks, which can lead to engine damage from low coolant or overheating.
  
• Maintains system pressure balance, which is critical in modern closed-loop cooling systems for proper pump flow and temperature control.
  
• Avoids damage to other parts — a leaking hose can spray coolant onto other components (belts, wiring, bodywork) causing corrosion or damage.
  
  

Diagram Ref No 12

Related reference numbers
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99610629705

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Rubber O-Ring for Bleeder Valve. Larger 47 x 4.



Fits:
Porsche 996 1998-05
Porsche 997 MKI 2005>>
Porsche 986 Boxster 1997-04
Porsche 987 Boxster 2005>>
Porsche 987C Cayman 2005>>

Click 'Zoom in' for large parts diagram.
Diagram ref no 11

Related reference numbers
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99970737040

The product you are viewing cross references to these numbers

Rubber O-Ring for Bleeder Valve. Smaller 17 x 4



Fits:
Porsche 996 1998-05
Porsche 997 MKI 2005>>
Porsche 986 Boxster 1997-04
Porsche 987 Boxster 2005>>
Porsche 987C Cayman 2005>>

Click 'Zoom in' for large parts diagram.
Diagram ref no 12

Related reference numbers
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99970737140

The product you are viewing cross references to these numbers

Windscreen water reservoir filler neck.



Fits:
Porsche 986 Boxster 1997-04
Porsche 996 1998-05
Porsche 996 Turbo 2001-05
Porsche 996 GT3 1999-05
Porsche Carrera GT 2003-06

Click 'Zoom in' for large parts diagram.
Diagram ref no 3

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99652860500

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