Coolant Hose Connecting Piece. Porsche 987 Boxster / 987C Cayman / 997 › 99710625502

Coolant Hose Connecting Piece
This connecting piece forms part of the radiator coolant hose assembly, providing a secure connection between associated coolant hoses and pipework. It helps maintain an effective coolant circulation system, ensuring reliable coolant flow and supporting consistent engine temperature regulation.

Fits:
Porsche 987.1 Boxster / S 2005 - 2008
Porsche 987.2 Boxster / S 2009 - 2010
Porsche 987C.1 Cayman / S 2006 - 2008
Porsche 987C.2 Cayman / S 2009 - 2012
Porsche 997.1 Carrera 2005 - 2008
Porsche 997.1 Turbo 2007 - 2009
Porsche 997.2 Carrera 2009 - 2012
Porsche 997.2 Turbo 2010 - 2013
Porsche 997 GT3 2007 - 2010

Diagram ref no 11

Manufactured to Porsche's original specifications, this genuine replacement connector offers precise fitment, durability and resistance to the temperature and pressure demands of the cooling system.

Ideal for replacing cracked, damaged or leaking original connectors during radiator repairs, coolant hose replacement or routine cooling system maintenance.

What Does This Part Do? – Functions

• Secure Connection: Joins radiator coolant hoses and associated cooling system pipework.
• Coolant Circulation: Supports consistent coolant flow through the radiator circuit.
• Leak Prevention: Helps maintain a secure, leak-resistant connection.
• Temperature Resistance: Designed to withstand normal cooling system temperatures and pressures.
• Original Fitment: Maintains Porsche factory cooling system specifications.

Why Replace This Part?
Over time, coolant hose connecting pieces can become brittle, cracked or damaged due to repeated temperature changes, coolant pressure and ageing. A deteriorated connector may cause coolant leaks, pressure loss and reduced cooling system efficiency.

Replacing a damaged connector with a genuine Porsche component helps restore secure hose connections, reduce the risk of coolant loss and maintain reliable engine cooling performance.

When to Replace This Part?

• Coolant Leaks: Visible coolant escaping around the connector.
• Physical Damage: Cracked, broken or deformed connecting piece.
• Poor Sealing: Loose or leaking coolant hose connections.
• Material Deterioration: Signs of ageing, brittleness or damage.
• Cooling System Repairs: During radiator or coolant hose replacement.

Where Does It Fit on the Car?
Location: Front cooling system – radiator coolant hose assembly.

The coolant hose connecting piece is installed within the radiator coolant pipework, joining the associated coolant hoses and helping maintain a secure connection between cooling system components. It forms part of the front radiator hose arrangement on compatible Porsche 987 and 997 models. 

Related reference numbers
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99710625502

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