Koelmiddeltanks / expansievaten

Engine coolant expansion tank kit with sensor.
This kit includes a direct-fit coolant expansion tank, pressure cap, long-life red antifreeze, and a coolant level sensor, giving you the essential components needed to refresh the coolant reservoir side of the engine cooling system with parts that match the original equipment specifications.

Fits:
Porsche 996 3.6L C2 / C4 / C4S 2001 - 2005
Porsche 996 Turbo 2001 - 2005
Porsche 996 GT2 2001 - 2005
Porsche 996 GT3 MKII / GT3 RS 2001 - 2005
Porsche 997.1  2005 - 2008 all models
Porsche 997.2 2009 - 2012 all models

Diagram ref no 1, 2, 3, 4, 5, 13, 14, 17.

The core expansion tank included - part 99610615704 - is designed for Porsche 911 models (996 & early-mid 997 generations) from roughly 2001 to 2012 family vehicles when equipped with the matching cooling setup. It is precision-moulded for proper hose and sensor connections.  Always double-check fitment with your vehicle’s year, model and engine before ordering.

The Engine Coolant Expansion Tank Kit brings together the key components responsible for reliable coolant overflow control, pressure sealing, fluid protection, and level monitoring:

• 99610615704/1 × 1 – OE Match Coolant Expansion Tank incl. Cap (99610644704): Precision-matched coolant reservoir engineered to replicate the original Porsche expansion tank for the 911 (996/997) cooling system. Correct pressure cap that seals the expansion tank and helps maintain proper system pressure to optimise coolant performance.

•  00004330194 × 5 – Comma Antifreeze 1 L Red Concentrate (5-Year Protection): High-quality coolant concentrate designed for long life protection against corrosion, freeze, and boil when mixed with distilled water.

•  99764150300/1 × 1 – OE Match Coolant Level Sensor: that fits into the expansion tank, monitoring coolant level and triggering alerts if it falls below safe thresholds.

Together, these parts provide a comprehensive OE Match solution for maintaining or overhauling your cooling system’s expansion reservoir assembly.

Coolant expansion tanks can become brittle and crack over time due to heat cycling, stringently affecting coolant containment and pressure regulation. Old or degraded antifreeze also loses protective properties against corrosion and thermal stress. A failing level sensor can result in inaccurate or missing low-coolant warnings, increasing risk of overheating and engine damage. By replacing all key components with OE Match quality parts, you help maintain proper cooling function, consistent performance, and long-term reliability.

Replace this kit when you notice any of the following: 
•  Cracks, leaks or deformation in the expansion tank
•  Pressure cap no longer seals or maintains system pressure
•  Coolant appears contaminated, sludgy or past its service life
•  Frequent coolant top-ups are required without visible external leaks.

Gerelateerde referentienummers
Gerelateerde, vervangen, kruisverwijzingen of alternatieve nummers ter vergelijking.

COOLTANKKIT997.2

Het product dat u bekijkt, verwijst naar deze nummers

Engine coolant expansion tank kit with sensor.
A complete OE Genuine Porsche cooling system service kit that includes all the factory-specified components perfect for routine maintenance or when replacing worn cooling system components to maintain precise temperature control and system integrity.

Fits:
Porsche 996 3.6L C2 / C4 / C4S 2001 - 2005
Porsche 996 Turbo 2001 - 2005
Porsche 996 GT2 2001 - 2005
Porsche 996 GT3 MKII / GT3 RS 2001 - 2005
Porsche 997.1  2005 - 2008 all models
Porsche 997.2 2009 - 2012 all models

Diagram ref no 1, 2, 3, 4, 5, 13, 14, 17.

This OE Genuine Porsche kit is designed for Porsche models that use part number 99610615704 for the coolant expansion reservoir - commonly found on Porsche 911 (996 & early 997) vehicles from roughly 2001-2012. Always verify specific model and year compatibility before installation.

This service kit combines essential Genuine Porsche components engineered to work together for optimal cooling system performance:

• 99610615704 × 1 – Genuine Porsche Coolant Expansion Tank: Factory-designed coolant reservoir that collects expanding coolant as engine temperatures rise and returns it as the system cools. Built to exact Porsche OE specifications for perfect fit and long service life.

•  99610644704 × 1 – Genuine Porsche Expansion Tank Cap: Original equipment pressure cap that seals the reservoir and maintains correct cooling system pressure for efficient thermal control.

•  99764150300 × 1 – Genuine Porsche Coolant Level Sensor: Factory fluid level sensor ensures accurate monitoring of coolant level and integrates with the vehicle’s onboard warning system for enhanced safety.

•  00004330515 × 5 – Genuine Porsche Long-Life Antifreeze (1 L, Red, 5-Year Protection): Factory-approved coolant concentrate formulated to deliver extended thermal protection and corrosion resistance when mixed with distilled water.

Together, these parts create a comprehensive cooling system refresh kit designed to restore and maintain proper coolant management under all driving conditions.

Over time, the original coolant expansion tank can become brittle, discoloured, or cracked due to repeated heat cycling and chemical exposure, potentially leading to leaks, reduced pressure control, and poor cooling performance. Old or degraded coolant loses its protective properties, increasing the risk of corrosion and overheating. Failing to replace worn parts can result in costly engine damage. Using Genuine Porsche parts ensures factory-original fit, dependable performance, and long-term reliability - preserving engine health and cooling efficiency.

Replace this kit when you notice any of the following: 
•  Cracks, leaks or deformation in the expansion tank
•  Pressure cap no longer seals or maintains system pressure
•  Coolant appears contaminated, sludgy or past its service life
•  Frequent coolant top-ups are required without visible external leaks.

Gerelateerde referentienummers
Gerelateerde, vervangen, kruisverwijzingen of alternatieve nummers ter vergelijking.

COOLTANKKIT997.2.OE

Het product dat u bekijkt, verwijst naar deze nummers

Koelvloeistofexpansietankset voor de motor.
Deze set bevat een direct passend koelvloeistofexpansievat, een drukdop, duurzame rode antivries en een koelvloeistofniveausensor. Hiermee beschikt u over de essentiële onderdelen om het koelvloeistofreservoir van het motorkoelsysteem te vernieuwen met onderdelen die voldoen aan de originele specificaties.

Geschikt voor:
Porsche 996 3.6L C2 / C4 / C4S 2001 - 2005
Porsche 996 Turbo 2001 - 2005
Porsche 996 GT2 2001 - 2005
Porsche 996 GT3 MKII / GT3 RS 2001 - 2005
Porsche 997.1 2005 - 2008 alle modellen
Porsche 997.2 2009 - 2012 alle modellen

Diagram referentienummers 1, 3, 4, 5, 13, 14, 17.

Deze OE Match-kit is ontworpen voor Porsche-voertuigen die onderdeelnummer 99610615704 gebruiken voor hun koelvloeistofexpansievat, wat veelal past op Porsche 911-modellen (996 en vroege 997-serie). Controleer altijd het specifieke modeljaar en de motor van uw voertuig om er zeker van te zijn dat het onderdeel past voordat u het aanschaft.

Deze kit voor het expansievat van de motorkoelvloeistof combineert de essentiële originele onderdelen die nodig zijn voor een correct onderhoud van het koelsysteem:

• 99610615704/1 × 1 – OE Match Koelvloeistofexpansievat incl. dop (99610644704): Nauwkeurig afgestemd koelvloeistofreservoir, ontworpen om het originele Porsche-expansievat voor het koelsysteem van de 911 (996/997) na te bootsen. Correcte drukdop die het expansievat afsluit en helpt de juiste systeemdruk te handhaven voor optimale koelvloeistofprestaties.

• 00004330194 × 5 – Comma Antivries 1 L Rood Concentraat (5 jaar bescherming): Hoogwaardig koelvloeistofconcentraat, ontworpen voor langdurige bescherming tegen corrosie, bevriezing en koken wanneer gemengd met gedestilleerd water.

Deze componenten zorgen er samen voor dat uw koelsysteem wordt vernieuwd met hoogwaardige onderdelen die qua prestaties en eigenschappen nauw aansluiten bij het origineel.

Deze set helpt het koelsysteem weer in staat te stellen de uitzetting en inkrimping van de koelvloeistof te reguleren bij temperatuurschommelingen. Het expansievat vangt overtollige koelvloeistof veilig op, de drukdop zorgt voor de integriteit van het systeem en het kookpunt, en de antivries met lange levensduur beschermt interne onderdelen tegen corrosie, oververhitting en vorstschade.

Na verloop van tijd kunnen het originele expansievat en de dop van het koelvloeistofreservoir broos, verkleurd, gebarsten of verzwakt raken door herhaalde temperatuurschommelingen en blootstelling aan koelvloeistof. Een defect expansievat kan leiden tot verlies van koelvloeistof of lucht in het systeem, terwijl oude of uitgeputte koelvloeistof zijn beschermende eigenschappen verliest. Een origineel expansievat en dop herstellen de juiste afdichting van de koelvloeistof en de drukregeling. Door de koelvloeistof bij te vullen met hoogwaardige antivries blijft de bescherming tegen corrosie en extreme temperaturen jarenlang behouden.

Vervang deze set wanneer u een van de volgende problemen opmerkt:
• Scheuren, lekkages of vervormingen in het expansievat
• De drukdop sluit niet langer goed af en houdt de systeemdruk niet meer op peil.
• De koelvloeistof lijkt vervuild, slibachtig of heeft zijn levensduur overschreden.
• Regelmatig bijvullen van de koelvloeistof is noodzakelijk, zonder zichtbare externe lekkages.

Gerelateerde referentienummers
Gerelateerde, vervangen, kruisverwijzingen of alternatieve nummers ter vergelijking.

COOLTANKKIT997.1

Het product dat u bekijkt, verwijst naar deze nummers

Engine coolant expansion tank kit.
Genuine Porsche cooling system kit provides the genuine coolant expansion tank, correct sealing cap, and long-life antifreeze concentrate - everything needed to refresh and maintain your vehicle’s coolant reservoir system the way Porsche intended.

Fits:
Porsche 996 3.6L C2 / C4 / C4S 2001 - 2005
Porsche 996 Turbo 2001 - 2005
Porsche 996 GT2 2001 - 2005
Porsche 996 GT3 MKII / GT3 RS 2001 - 2005
Porsche 997.1  2005 - 2008 all models
Porsche 997.2 2009 - 2012 all models

Diagram ref no 1, 3, 4, 5, 13, 14, 17.

This Genuine Porsche kit is designed for Porsche models that use part 99610615704 as the coolant expansion reservoir, which includes various 911 (996 & early 997) vehicles (typically fitted to Porsche 911 2001–2012 models). Verify your specific year, model and engine to ensure compatibility.

This engine coolant expansion tank kit includes:

• 99610615704 × 1 – Genuine Porsche Coolant Expansion Tank: The OE-designed coolant reservoir, precision-molded and pressure-tested to factory specifications. It handles expanding coolant as your engine warms, keeping the cooling system stable and correctly balanced.

•  99610644704 × 1 – Genuine Porsche Expansion Tank Cap: A direct-fit factory cap engineered to maintain specified cooling system pressure and seal the reservoir tightly under thermal cycling.

•  00004330515 × 5 – Genuine Porsche Long-Life Antifreeze (1 L Red Concentrate, 5-Year Protection): Porsche-approved long-life coolant concentrate that, when mixed properly with distilled water, offers extended protection against freezing, boiling, and corrosion — critical for long term engine health.

Together, these parts form a complete, genuine Porsche cooling system refresh solution that maintains factory-engineered performance, durability and thermal stability.

Original coolant expansion tanks can become brittle, discoloured or cracked over time due to constant heat cycling and chemical exposure, leading to coolant leaks or pressure loss. A failing reservoir or cap can compromise cooling performance and increase the risk of engine overheating. Additionally, coolant degrades with age and loses protective qualities against rust and thermal stress. Replacing these components with Genuine Porsche products ensures restored system integrity, accurate fluid containment and long-lasting protection - helping preserve engine longevity and performance.

Replace this kit when you notice any of the following: 
•  Cracks, leaks or deformation in the expansion tank
•  Pressure cap no longer seals or maintains system pressure
•  Coolant appears contaminated, sludgy or past its service life
•  Frequent coolant top-ups are required without visible external leaks.

Gerelateerde referentienummers
Gerelateerde, vervangen, kruisverwijzingen of alternatieve nummers ter vergelijking.

COOLTANKKIT997.1.OE

Het product dat u bekijkt, verwijst naar deze nummers