Please wait… 
Please wait while we process your order,
do not press the back button…
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.
Engine coolant expansion tank kit with sensor. Porsche 986 Boxster / 987.1 Boxster 1997-06 - COOLTANKKIT986.2
COOLTANKKIT986.2
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 with sensor.
This complete cooling system refresh kit combines essential components - expansion tank, sealing cap, level sensor, and long-life antifreeze — to maintain proper engine cooling performance and fluid management over the long term.
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, 34
This OE Match kit is designed for Porsche models that use the 99610614708 expansion tank - such as Porsche Boxster 986 (1997–2004) and Boxster 987 (2005–2006). Always confirm compatibility with the exact model year and engine before purchase.
This engine coolant expansion tank kit includes four key OE Match components that work together to ensure efficient and reliable cooling system operation:
• 99610614708/1 × 1 – OE Match Coolant Expansion Tank: A precision-engineered coolant reservoir designed to replace the original plastic tank on Porsche models like the Boxster (986/987). It stores excess coolant as the engine heats and expands.
• 99610644704/1 × 1 – OE Match Expansion Tank Cap: A direct-fit pressure cap that seals the reservoir and maintains the proper cooling system pressure to optimise thermal performance.
• 00004330194 × 5 – Comma Antifreeze 1 L Red Coolant Concentrate (5-Year Long Life): High-quality antifreeze designed to be mixed with distilled water, offering excellent corrosion protection and extended service life (up to 5 years).
• 99764150300 × 1 – Coolant Level Sensor: OE Match coolant level sensor that monitors the reservoir’s fluid level and enables accurate dashboard warnings to help prevent low-coolant conditions.
This kit addresses both fluid containment and monitoring functions of the coolant system - essential for engine health and performance.
This engine cooling kit enables your vehicle’s cooling system to manage thermal expansion, maintain correct coolant levels, and monitor fluid status effectively. The expansion tank stores overflow coolant when the engine warms up and returns it to the system as it cools down. The pressure cap helps hold system pressure, which elevates boiling point and prevents boil-over. The level sensor ensures accurate monitoring, while the antifreeze helps protect against corrosion and temperature extremes.
Over time, coolant expansion tanks can crack, deform, or develop leaks due to heat cycling and material fatigue. A failing tank or cap can lead to loss of coolant, poor pressure control, and engine overheating. The level sensor can also fail or give inaccurate readings as it ages. Replacing these components with OE Match quality parts restores proper coolant containment, pressure regulation, and fluid level monitoring - helping protect the engine from thermal stress and potentially costly damage.
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.
COOLTANKKIT986.2
The product you are viewing cross references to these numbers
This complete cooling system refresh kit combines essential components - expansion tank, sealing cap, level sensor, and long-life antifreeze — to maintain proper engine cooling performance and fluid management over the long term.
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, 34
This OE Match kit is designed for Porsche models that use the 99610614708 expansion tank - such as Porsche Boxster 986 (1997–2004) and Boxster 987 (2005–2006). Always confirm compatibility with the exact model year and engine before purchase.
This engine coolant expansion tank kit includes four key OE Match components that work together to ensure efficient and reliable cooling system operation:
• 99610614708/1 × 1 – OE Match Coolant Expansion Tank: A precision-engineered coolant reservoir designed to replace the original plastic tank on Porsche models like the Boxster (986/987). It stores excess coolant as the engine heats and expands.
• 99610644704/1 × 1 – OE Match Expansion Tank Cap: A direct-fit pressure cap that seals the reservoir and maintains the proper cooling system pressure to optimise thermal performance.
• 00004330194 × 5 – Comma Antifreeze 1 L Red Coolant Concentrate (5-Year Long Life): High-quality antifreeze designed to be mixed with distilled water, offering excellent corrosion protection and extended service life (up to 5 years).
• 99764150300 × 1 – Coolant Level Sensor: OE Match coolant level sensor that monitors the reservoir’s fluid level and enables accurate dashboard warnings to help prevent low-coolant conditions.
This kit addresses both fluid containment and monitoring functions of the coolant system - essential for engine health and performance.
This engine cooling kit enables your vehicle’s cooling system to manage thermal expansion, maintain correct coolant levels, and monitor fluid status effectively. The expansion tank stores overflow coolant when the engine warms up and returns it to the system as it cools down. The pressure cap helps hold system pressure, which elevates boiling point and prevents boil-over. The level sensor ensures accurate monitoring, while the antifreeze helps protect against corrosion and temperature extremes.
Over time, coolant expansion tanks can crack, deform, or develop leaks due to heat cycling and material fatigue. A failing tank or cap can lead to loss of coolant, poor pressure control, and engine overheating. The level sensor can also fail or give inaccurate readings as it ages. Replacing these components with OE Match quality parts restores proper coolant containment, pressure regulation, and fluid level monitoring - helping protect the engine from thermal stress and potentially costly damage.
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.
COOLTANKKIT986.2
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
1 x Coolant reservoir / expansion tank cap. Porsche Boxster 986 / Boxster 987 / Cayman 987C / 996 / 997 (99610644704/1
1 x Coolant bottle level sensor. Porsche Boxster 986 / Boxster 987 / 996 / 997 (99764150300/1
5 x Antifreeze 1Ltr Concentrate Bottle 5 year Red (00004330194
Price: £200.95
In stock
Related products
Vehicle Group
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- Porsche 968 3.0L 1992-94
- Porsche 968 Sport 3.0L 1994-95
- Porsche 968 CS 3.0L 1993-95
- Porsche 968 Turbo S 3.0L 1993-94
Information
Expansion tank cap.
Fits:
Porsche 924S 1986-88
Porsche 944 1985-91
Porsche 968 1992-95
Click 'Zoom in' for large parts diagram.
Diagram ref no 7.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94410625700
The product you are viewing cross references to these numbers
Fits:
Porsche 924S 1986-88
Porsche 944 1985-91
Porsche 968 1992-95
Click 'Zoom in' for large parts diagram.
Diagram ref no 7.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94410625700
94410625700
8MY376742221
The product you are viewing cross references to these numbers
Price: £28.60
Orderable
Vehicle Group
- Porsche 944 2.5L 8V 1982-87
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Information
Expansion tank cap.
Fits:
Porsche 944 1982-85
Porsche 928 1978-95
Click 'Zoom in' for large parts diagram.
Diagram ref no 7.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92810625703
The product you are viewing cross references to these numbers
Fits:
Porsche 944 1982-85
Porsche 928 1978-95
Click 'Zoom in' for large parts diagram.
Diagram ref no 7.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92810625703
92810625700
92810625703
8MY376742-061
8MY376742-181
The product you are viewing cross references to these numbers
Price: £28.60
Orderable
Vehicle Group
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
Information
Water coolant reservoir expansion tank.
Single outlet pipe type
Fits:
Porsche 924S 1986-88
Porsche 944 1982-91
Click 'Zoom in' for large parts diagram.
Diagram ref no 16.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94410612506
The product you are viewing cross references to these numbers
Single outlet pipe type
Fits:
Porsche 924S 1986-88
Porsche 944 1982-91
Click 'Zoom in' for large parts diagram.
Diagram ref no 16.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94410612506
94410612506
94410612505
94410612504
94410612503
94410612502
The product you are viewing cross references to these numbers
Price: £245.38
Orderable