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Porsche
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Engine Cooling
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Coolant Hoses and Pipes (Rear engine cars)
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Coolant Hoses - Centre Section
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O-ring seal water pipe. Porsche 987 Boxster / 987 Cayman ❭ 99610680107
O-ring seal water pipe. Porsche 987 Boxster / 987 Cayman - 99610680107
99610680107
Vehicle Group
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
Information
O ring seal water pipe, 39.3 x 3.53 mm
This original Porsche sealing ring is used in the engine cooling system, helping seal the coolant pipe connection and prevent coolant leaks.
Sold individually,
Fits:
Porsche 987.1 Boxster 2005 - 2008
Porsche 987.2 Boxster 2009 - 2012
Porsche 987C.1 Cayman 2005 - 2008
Porsche 987C.2 Cayman 2009 - 2012
Diagram ref no 39
This O-ring is used on selected Porsche 987 Boxster and Cayman cooling system pipework.
What This Part Does / Functions
• Seals the water pipe / coolant pipe connection
• Helps prevent coolant leaks
• Maintains cooling system pressure
• Supports correct coolant flow through the engine and radiator circuit
• Helps prevent air entering the cooling system
• Replaces a hardened, flattened, cut or leaking original O-ring
• Provides correct OE Porsche size, material and fitment
• Supports correct reassembly after coolant pipe or hose service.
Why Replace This Part?
Coolant O-rings are exposed to heat cycles, coolant pressure, vibration and age-related rubber deterioration. Over time, the seal can harden, flatten, crack or lose elasticity. A worn O-ring may allow coolant seepage from the pipe connection, leading to coolant loss, pressure loss or low coolant warnings. Replacing it with a Genuine Porsche OE water pipe O-ring helps restore the correct seal and supports reliable cooling system operation.
Common Symptoms of a Failed Water Pipe O-Ring
• Coolant leak around the water pipe connection
• Dried coolant residue near the pipe joint
• Low coolant warning
• Coolant smell from the engine bay
• Cooling system pressure loss
• Air entering the cooling system
• O-ring found flattened, cut or hardened during inspection
• Coolant seepage after previous pipe or hose work.
When to Replace This Part
• Whenever the water pipe or coolant pipe is removed
• During coolant hose or pipe replacement
• If coolant is leaking from the pipe connection
• If the O-ring is hardened, flattened, cracked or damaged
• During cooling system overhaul or repair
• When replacing related coolant pipes, hoses or housings
• After separating the water pipe connection
• Whenever Porsche workshop procedure recommends replacing the seal after removal.
Where It Fits on the Car
This O-ring fits in the engine cooling system water pipe / coolant pipe connection. It is commonly shown in Porsche cooling diagrams in the feed and return water hose / coolant hose centre section area. Correct installation is important. The sealing surface should be clean, and the O-ring should be fitted without twisting, pinching or damage.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610680107
The product you are viewing cross references to these numbers
This original Porsche sealing ring is used in the engine cooling system, helping seal the coolant pipe connection and prevent coolant leaks.
Sold individually,
Fits:
Porsche 987.1 Boxster 2005 - 2008
Porsche 987.2 Boxster 2009 - 2012
Porsche 987C.1 Cayman 2005 - 2008
Porsche 987C.2 Cayman 2009 - 2012
Diagram ref no 39
This O-ring is used on selected Porsche 987 Boxster and Cayman cooling system pipework.
What This Part Does / Functions
• Seals the water pipe / coolant pipe connection
• Helps prevent coolant leaks
• Maintains cooling system pressure
• Supports correct coolant flow through the engine and radiator circuit
• Helps prevent air entering the cooling system
• Replaces a hardened, flattened, cut or leaking original O-ring
• Provides correct OE Porsche size, material and fitment
• Supports correct reassembly after coolant pipe or hose service.
Why Replace This Part?
Coolant O-rings are exposed to heat cycles, coolant pressure, vibration and age-related rubber deterioration. Over time, the seal can harden, flatten, crack or lose elasticity. A worn O-ring may allow coolant seepage from the pipe connection, leading to coolant loss, pressure loss or low coolant warnings. Replacing it with a Genuine Porsche OE water pipe O-ring helps restore the correct seal and supports reliable cooling system operation.
Common Symptoms of a Failed Water Pipe O-Ring
• Coolant leak around the water pipe connection
• Dried coolant residue near the pipe joint
• Low coolant warning
• Coolant smell from the engine bay
• Cooling system pressure loss
• Air entering the cooling system
• O-ring found flattened, cut or hardened during inspection
• Coolant seepage after previous pipe or hose work.
When to Replace This Part
• Whenever the water pipe or coolant pipe is removed
• During coolant hose or pipe replacement
• If coolant is leaking from the pipe connection
• If the O-ring is hardened, flattened, cracked or damaged
• During cooling system overhaul or repair
• When replacing related coolant pipes, hoses or housings
• After separating the water pipe connection
• Whenever Porsche workshop procedure recommends replacing the seal after removal.
Where It Fits on the Car
This O-ring fits in the engine cooling system water pipe / coolant pipe connection. It is commonly shown in Porsche cooling diagrams in the feed and return water hose / coolant hose centre section area. Correct installation is important. The sealing surface should be clean, and the O-ring should be fitted without twisting, pinching or damage.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610680107
99610680107
The product you are viewing cross references to these numbers
Price: £5.24
In stock
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