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Engine coolant hose, return. Porsche 997.2 / 981 Boxster / 981C Cayman - 9A110661501
9A110661501/1
Vehicle Group
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- 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 991.1 Carrera C2 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Carrera C4 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C4S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
Information
Engine coolant hose - Return
Fits:
Porsche 987.2 Boxster 2.9ltr / 3.4ltr - 2009 to 2012
Porsche 981C.2 Cayman 2.9ltr / 3.4ltr - 2009 to 2012
Porsche 997.2 Carrera - 2009 to 2012
Porsche 991.1 Carrera - 2012 to 2016
Click 'Zoom in' for large parts diagram.
Diagram ref no 16
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9A110661501
The product you are viewing cross references to these numbers
Fits:
Porsche 987.2 Boxster 2.9ltr / 3.4ltr - 2009 to 2012
Porsche 981C.2 Cayman 2.9ltr / 3.4ltr - 2009 to 2012
Porsche 997.2 Carrera - 2009 to 2012
Porsche 991.1 Carrera - 2012 to 2016
Click 'Zoom in' for large parts diagram.
Diagram ref no 16
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9A110661501
9A110661501
9A110661500
The product you are viewing cross references to these numbers
Price: £11.95
In stock
Related products
Vehicle Group
- 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
Information
Water hose that fits to the water pump part number 99610612155.
This OE Match water hose is a coolant hose designed to connect the engine cooling circuit to the water thermostat housing on Porsche 911 (996) models produced between 1998 and 2005. This hose forms part of the engine’s cooling system, allowing coolant to circulate between the engine and thermostat assembly to regulate operating temperature.
Fits:
Porsche 996 C2 / C4 / C4S 1998 - 2005
Diagram ref no 24
This product supersedes Porsche's old part numbers: 99610650253, 99610650254.
The hose carries coolant between the thermostat housing and the engine’s cooling pipes. This allows the thermostat to regulate coolant flow depending on engine temperature, ensuring the engine warms up efficiently and remains within the correct operating range.
A properly functioning coolant hose is essential to maintain stable engine temperatures and prevent overheating.
Function
• Coolant Circulation: Transfers coolant between the thermostat housing and engine cooling pipes
• Temperature Regulation: Supports thermostat operation in controlling engine temperature
• Cooling System Integrity: Maintains sealed coolant flow under pressure
• Engine Protection: Helps prevent overheating and cooling system leaks
Coolant hoses operate under constant heat and pressure. Over time the rubber can become brittle, swell or crack due to thermal cycling and coolant exposure. A deteriorated hose may cause coolant leaks or reduced cooling efficiency, potentially leading to engine overheating. Replacing worn hoses ensures the cooling system maintains proper pressure and flow.
When to Replace. Consider replacing the hose if you notice:
• Visible cracks, swelling or deterioration in the rubber
• Coolant leaks around the thermostat connection
• Loss of coolant pressure or overheating issues
• During cooling system overhaul or thermostat replacement.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610650256
The product you are viewing cross references to these numbers
This OE Match water hose is a coolant hose designed to connect the engine cooling circuit to the water thermostat housing on Porsche 911 (996) models produced between 1998 and 2005. This hose forms part of the engine’s cooling system, allowing coolant to circulate between the engine and thermostat assembly to regulate operating temperature.
Fits:
Porsche 996 C2 / C4 / C4S 1998 - 2005
Diagram ref no 24
This product supersedes Porsche's old part numbers: 99610650253, 99610650254.
The hose carries coolant between the thermostat housing and the engine’s cooling pipes. This allows the thermostat to regulate coolant flow depending on engine temperature, ensuring the engine warms up efficiently and remains within the correct operating range.
A properly functioning coolant hose is essential to maintain stable engine temperatures and prevent overheating.
Function
• Coolant Circulation: Transfers coolant between the thermostat housing and engine cooling pipes
• Temperature Regulation: Supports thermostat operation in controlling engine temperature
• Cooling System Integrity: Maintains sealed coolant flow under pressure
• Engine Protection: Helps prevent overheating and cooling system leaks
Coolant hoses operate under constant heat and pressure. Over time the rubber can become brittle, swell or crack due to thermal cycling and coolant exposure. A deteriorated hose may cause coolant leaks or reduced cooling efficiency, potentially leading to engine overheating. Replacing worn hoses ensures the cooling system maintains proper pressure and flow.
When to Replace. Consider replacing the hose if you notice:
• Visible cracks, swelling or deterioration in the rubber
• Coolant leaks around the thermostat connection
• Loss of coolant pressure or overheating issues
• During cooling system overhaul or thermostat replacement.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610650256
99610650253
99610550254
99610550256
The product you are viewing cross references to these numbers
Price: £39.00
In stock
Vehicle Group
- 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
Information
Coolant hose - elbow. Coolant supply hose for oil pump housing.
Fits:
Porsche 996 3.4L/3.6L C2 / C4 / C4S 1998-2005
M 66X 01815 >>
Click 'Zoom in' for large parts diagram.
Diagram ref no 29
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610623356
The product you are viewing cross references to these numbers
Fits:
Porsche 996 3.4L/3.6L C2 / C4 / C4S 1998-2005
M 66X 01815 >>
Click 'Zoom in' for large parts diagram.
Diagram ref no 29
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610623356
99610623356
99610623355
99610623353
99610623352
The product you are viewing cross references to these numbers
Price: £10.00
In stock
Vehicle Group
- 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
Information
Coolant hose, supply.
From feed pipe.
Fits:
Porsche 996 C2 / C4 / C4S 1998-05
Click 'Zoom in' for large parts diagram.
Diagram ref no 27
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610621260
The product you are viewing cross references to these numbers
From feed pipe.
Fits:
Porsche 996 C2 / C4 / C4S 1998-05
Click 'Zoom in' for large parts diagram.
Diagram ref no 27
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610621260
99610621253
99610621252
99610621253
99610621260
The product you are viewing cross references to these numbers
Price: £25.95
In stock
Vehicle Group
- 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
Information
Engine coolant hose, Intake. RIGHT.
This OE Match engine coolant hose is a replacement intake-side coolant hose for Porsche 996 models. It is designed to match the original-style fitment and function, helping maintain correct coolant flow within the engine cooling system.
Fits:
Porsche 996 Carrera 1998 - 2005
Porsche 996 Turbo 2001 - 2005
Diagram ref no 5
The engine coolant hose carries coolant through the intake-side section of the cooling circuit, helping regulate engine temperature and support efficient heat transfer. A secure, leak-free coolant hose is essential for maintaining the correct operating temperature and protecting the engine from overheating.
Functions
• Replaces the intake-side engine coolant hose
• Carries coolant through the engine cooling system
• Helps maintain correct engine operating temperature
• Supports coolant circulation and heat transfer
• Helps prevent coolant leaks and pressure loss
• Replaces cracked, swollen, split, leaking, or aged original hoses
• OE Match replacement for cooling system repair and maintenance
Why Replace This Part?
Coolant hoses are exposed to heat, pressure, coolant chemicals, vibration, and age-related wear. Over time, the hose can harden, soften, swell, crack, split, or leak. A failing coolant hose may cause coolant loss, overheating, steam from the engine bay, low coolant warnings, or reduced cooling system reliability. Replacing a worn coolant hose helps protect the engine and restore dependable cooling system performance.
When to Replace This Part
• The coolant hose is cracked, swollen, soft, brittle, or split
• Coolant leaks are visible around the hose or connections
• The engine shows signs of overheating or coolant loss
• The hose connection is loose or contaminated
• The cooling system is being serviced or flushed
• Related coolant pipes, thermostat, water pump, or radiator parts are being replaced
• Preventative replacement is being carried out during engine maintenance.
Where it fits on the car
This coolant hose fits on the intake-side area of the engine cooling system on Porsche 996 models. It forms part of the coolant circulation circuit and connects according to the factory cooling system layout.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610672305
The product you are viewing cross references to these numbers
This OE Match engine coolant hose is a replacement intake-side coolant hose for Porsche 996 models. It is designed to match the original-style fitment and function, helping maintain correct coolant flow within the engine cooling system.
Fits:
Porsche 996 Carrera 1998 - 2005
Porsche 996 Turbo 2001 - 2005
Diagram ref no 5
The engine coolant hose carries coolant through the intake-side section of the cooling circuit, helping regulate engine temperature and support efficient heat transfer. A secure, leak-free coolant hose is essential for maintaining the correct operating temperature and protecting the engine from overheating.
Functions
• Replaces the intake-side engine coolant hose
• Carries coolant through the engine cooling system
• Helps maintain correct engine operating temperature
• Supports coolant circulation and heat transfer
• Helps prevent coolant leaks and pressure loss
• Replaces cracked, swollen, split, leaking, or aged original hoses
• OE Match replacement for cooling system repair and maintenance
Why Replace This Part?
Coolant hoses are exposed to heat, pressure, coolant chemicals, vibration, and age-related wear. Over time, the hose can harden, soften, swell, crack, split, or leak. A failing coolant hose may cause coolant loss, overheating, steam from the engine bay, low coolant warnings, or reduced cooling system reliability. Replacing a worn coolant hose helps protect the engine and restore dependable cooling system performance.
When to Replace This Part
• The coolant hose is cracked, swollen, soft, brittle, or split
• Coolant leaks are visible around the hose or connections
• The engine shows signs of overheating or coolant loss
• The hose connection is loose or contaminated
• The cooling system is being serviced or flushed
• Related coolant pipes, thermostat, water pump, or radiator parts are being replaced
• Preventative replacement is being carried out during engine maintenance.
Where it fits on the car
This coolant hose fits on the intake-side area of the engine cooling system on Porsche 996 models. It forms part of the coolant circulation circuit and connects according to the factory cooling system layout.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610672305
99610672305
99610672304
99610672302
The product you are viewing cross references to these numbers
Price: £22.00
In stock