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Engine coolant expansion tank kit. Porsche 986 Boxster / 987.1 Boxster 1997-06 - COOLTANKKIT986.1.OE
COOLTANKKIT986.1.OE
Vehicle Group
- 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 Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
Information
Engine coolant expansion tank kit.
This kit comes with a genuine coolant expansion tank, matching cap, and multiple bottles of Porsche long-life antifreeze - everything needed to renew your cooling system’s reservoir side with components built to precise Porsche standards.
Fits:
Porsche 986 Boxster 1997 - 2004
Porsche 987.1 Boxster 2.7L / 3.2L 2005 - 2006 (9625, 9626)
Diagram ref no 8, 11, 26, 27
This Genuine Porsche kit is designed for Porsche models that use part number 99610614708 for the engine coolant expansion tank, including Porsche Boxster 986 (1997–2004) and Boxster 987 (2005–2008) vehicles. Always verify fitment with your exact model year and chassis before installation.
This engine coolant expansion tank service kit includes the key factory-designed parts used on Porsche vehicles to manage coolant expansion, system pressure, and thermal protection:
• 99610614708 × 1 – Genuine Porsche Coolant Expansion Tank: Factory-original reservoir engineered to hold excess coolant and maintain correct system balance as temperatures change.
• 99610644704 × 1 – Genuine Porsche Expansion Tank Cap: Replacement pressure cap that seals the tank and helps maintain proper cooling system pressure.
• 00004330515 × 5 – Genuine Porsche Long-Life Antifreeze (1 L Red Concentrate, 5-Year Service): Porsche-approved coolant concentrate that, when mixed with distilled water, protects against freezing, boiling and corrosion for up to five years.
Together, these genuine Porsche products deliver a factory-level coolant reservoir solution that restores proper coolant containment and thermal performance.
This kit refreshes the key components of your engine’s coolant expansion side. The expansion tank captures coolant that expands as the engine heats, preventing overflow in the system. The cap keeps the system pressurised for better heat transfer, reducing the risk of boil-over. The included long-life antifreeze provides high-level protection against freezing, overheating, and internal corrosion - vital for engine longevity and reliability
Over time, the factory expansion tank and cap can become brittle, cracked, discoloured, or weakened, which can lead to coolant loss and reduced cooling performance. Using genuine Porsche parts ensures exact fit and factory-level reliability, helping maintain stable engine temperatures and reducing the risk of overheating or internal corrosion. The long-life antifreeze included also extends protection and reduces the frequency of coolant service intervals.
Replace these parts when you notice any of the following conditions:
• Cracks or visible leaks around the expansion tank
• Discolouration or brittleness of plastic components
• Coolant level fluctuations without visible leaks
• Overheating symptoms or reduced cooling performance
• Routine coolant system maintenance interval is due
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
COOLTANKKIT986.1.OE
The product you are viewing cross references to these numbers
This kit comes with a genuine coolant expansion tank, matching cap, and multiple bottles of Porsche long-life antifreeze - everything needed to renew your cooling system’s reservoir side with components built to precise Porsche standards.
Fits:
Porsche 986 Boxster 1997 - 2004
Porsche 987.1 Boxster 2.7L / 3.2L 2005 - 2006 (9625, 9626)
Diagram ref no 8, 11, 26, 27
This Genuine Porsche kit is designed for Porsche models that use part number 99610614708 for the engine coolant expansion tank, including Porsche Boxster 986 (1997–2004) and Boxster 987 (2005–2008) vehicles. Always verify fitment with your exact model year and chassis before installation.
This engine coolant expansion tank service kit includes the key factory-designed parts used on Porsche vehicles to manage coolant expansion, system pressure, and thermal protection:
• 99610614708 × 1 – Genuine Porsche Coolant Expansion Tank: Factory-original reservoir engineered to hold excess coolant and maintain correct system balance as temperatures change.
• 99610644704 × 1 – Genuine Porsche Expansion Tank Cap: Replacement pressure cap that seals the tank and helps maintain proper cooling system pressure.
• 00004330515 × 5 – Genuine Porsche Long-Life Antifreeze (1 L Red Concentrate, 5-Year Service): Porsche-approved coolant concentrate that, when mixed with distilled water, protects against freezing, boiling and corrosion for up to five years.
Together, these genuine Porsche products deliver a factory-level coolant reservoir solution that restores proper coolant containment and thermal performance.
This kit refreshes the key components of your engine’s coolant expansion side. The expansion tank captures coolant that expands as the engine heats, preventing overflow in the system. The cap keeps the system pressurised for better heat transfer, reducing the risk of boil-over. The included long-life antifreeze provides high-level protection against freezing, overheating, and internal corrosion - vital for engine longevity and reliability
Over time, the factory expansion tank and cap can become brittle, cracked, discoloured, or weakened, which can lead to coolant loss and reduced cooling performance. Using genuine Porsche parts ensures exact fit and factory-level reliability, helping maintain stable engine temperatures and reducing the risk of overheating or internal corrosion. The long-life antifreeze included also extends protection and reduces the frequency of coolant service intervals.
Replace these parts when you notice any of the following conditions:
• Cracks or visible leaks around the expansion tank
• Discolouration or brittleness of plastic components
• Coolant level fluctuations without visible leaks
• Overheating symptoms or reduced cooling performance
• Routine coolant system maintenance interval is due
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
COOLTANKKIT986.1.OE
99610614708
99610614703
99610614704
99610614705
99610614706
99610614707
The product you are viewing cross references to these numbers
About kit
This kit is comprised of the following items:
1 x Coolant Bottle. Porsche Boxster 986 / Boxster 987 1997-06 (99610614708
1 x Coolant bottle cap. Porsche Boxster 986 / Boxster 987 / Cayman 987C / 996 / 997 (99610644704
5 x Coolant / Antifreeze 1Ltr Top-up Bottle - Long Life 5 Year Red For Porsche Cars (00004330515
€426.18
Now €383.54
Arriving soon
Related products
Vehicle Group
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 GT3 MKI 1999-02
Information
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
Related, superseded, cross reference or alternative numbers for comparison.
99610614756
The product you are viewing cross references to these numbers
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
Related, superseded, cross reference or alternative numbers for comparison.
99610614756
99610614753
99610614754
99610614755
99610614756
2140258
56959
The product you are viewing cross references to these numbers
€767.20
Now €690.48
Orderable
Vehicle Group
- 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 Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- 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 996 GT3 RS 2003-04
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
Information
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
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
99610644704
99610644703
99610644702
99610644701
99610644700
171121321D
The product you are viewing cross references to these numbers
€27.46
Now €24.71
Arriving soon
Vehicle Group
- 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 Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- 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 996 GT3 RS 2003-04
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
Information
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
Related, superseded, cross reference or alternative numbers for comparison.
99610634702
The product you are viewing cross references to these numbers
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
Related, superseded, cross reference or alternative numbers for comparison.
99610634702
99610634702
99610634701
99610634700
99970737040
99970737140
The product you are viewing cross references to these numbers
€154.40
Now €138.96
In stock