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Your Vehicle  //  Porsche  //  Boxster 986/987/981 (1997-2016)  //  Boxster 987 2.7L 2005-08/08

Hose Clips / Screws / Brackets and Fixings

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DISPLAYING 1 to 9 (of 9 products)
90037801301/1::1
Product Information
Product Information
Hex head bolt M6x25 with various applications
Sold each


Fits:
Porsche 986 Boxster - 1997 to 2004
Porsche 987 Boxster / Cayman - 2005 to 2012
Porsche 993 - 1994 to 1998
Porsche 997 - 2005 to 2012



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Related, superseded, cross reference or alternative numbers for comparison.

90037801301
90037801301
90037801309

The product you are viewing cross references to these numbers
Special Order item
90037801301::1
Product Information
Product Information
Hex head bolt M6x25 with various applications
Sold each

Fits:
Porsche 986 Boxster - 1997 to 2004
Porsche 987 Boxster / Cayman - 2005 to 2012
Porsche 993 - 1994 to 1998
Porsche 997 - 2005 to 2012



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

90037801301
90037801301
90037801309

The product you are viewing cross references to these numbers
Special Order item
98710642501
Product Information
Product Information
Coolant Hose Bracket.

Fits:
Porsche 987 Boxster 2.7L M96.25 2004>>2006
Porsche 987 Boxster 3.2L M96.26 2004>>2006
Porsche 987 Boxster 2.7L M97.20 2006>>2008
Porsche 987 Boxster 3.4L M97.21 2006>>2008
Porsche 987 Boxster 3.4L M97.22 2007>>2008
Porsche 987 Cayman 2.7L M97.20 2006>>2008
Porsche 987 Cayman 3.4L M97.21 2005>>2008
Porsche 987 Cayman 3.4L M97.22 2007>>2008

Diagram Ref No 25

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Related, superseded, cross reference or alternative numbers for comparison.

98710642501
98710642501
98710642500

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Special Order item
99710690200
Product Information
Product Information
Coolant Hose Clamp
This clamp forms part of the radiator coolant hose assembly, helping secure the associated coolant hose connection and maintain a reliable seal within the cooling system.
Sold individually

Fits:
Porsche 987.1 Boxster / S 2005 - 2008
Porsche 987.2 Boxster / S 2009 - 2012
Porsche 987C.1 Cayman / S 2006 - 2008
Porsche 987C.2 Cayman / S 2009 - 2012
Porsche 997.1 Carrera 3.6L / 3.8L 2005 - 2008 CABRIO/COUPE
Porsche 997.2 Carrera 3.6L / 3.8L 2009 - 2010 CABRIO/COUPE

Diagram ref no 27.

Manufactured to Porsche's original specifications, this genuine replacement clamp provides precise fitment, durability and dependable fastening under the temperature changes, pressure and vibration experienced during normal vehicle operation.

Ideal for replacing worn, damaged or corroded original clamps during radiator repairs, coolant hose replacement or cooling system maintenance.

What Does This Part Do? – Functions
  • Secure Fastening: Helps hold coolant hose connections firmly in position.
  • Leak Prevention: Supports a secure connection to minimise coolant leakage.
  • Coolant System Reliability: Helps maintain the integrity of the radiator cooling circuit.
  • Vibration Resistance: Reduces the risk of hose connections becoming loose.
  • Original Fitment: Maintains factory-correct cooling system assembly.

Why Replace This Part?
Over time, coolant hose clamps may become corroded, weakened or damaged due to repeated temperature changes, moisture and vibration. A faulty clamp can compromise the hose connection, potentially resulting in coolant leakage and reduced cooling system reliability.

Replacing a worn or damaged clamp with a genuine Porsche component helps restore secure fastening, reduce the risk of coolant loss and maintain dependable engine cooling performance.

When to Replace This Part?
  • Coolant Leaks: Visible leakage around the hose connection.
  • Corrosion: Rust or deterioration affecting clamp strength.
  • Physical Damage: Bent, cracked or deformed clamp.
  • Loose Connection: Clamp no longer secures the hose correctly.
  • Cooling System Repairs: During radiator or coolant hose replacement.

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

The coolant hose clamp is installed at a designated connection within the radiator coolant hose arrangement, securing the associated hose and helping maintain a reliable cooling system connection.

It forms part of the coolant hose and pipework assembly on compatible Porsche 987 Boxster, Cayman and 997 Carrera models.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99710690200
99710690200

The product you are viewing cross references to these numbers
Special Order item
99710625502
Product Information
Product Information
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. 

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Related, superseded, cross reference or alternative numbers for comparison.

99710625502
99710625502

The product you are viewing cross references to these numbers
Special Order item
90037817701
Product Information
Product Information
M6 x 30 hex. head bolt for multiple applications.

Sold individually. 

Fits:
Porsche 986 Boxster 1997-04

Porsche 987-1 Boxster 2005-08
Porsche 987-1 Cayman 2005-08

Porsche 993 Carrera 1994-98
Porsche 993 Turbo 1995-98

Porsche 996 Carrera 1998-05
Porsche 996 Turbo 2001-05
Porsche 996 GT3 1999-05

Porsche Carrera GT 2004-06

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

90037817701
90037817701
90037817709
90037811609
90037801409

The product you are viewing cross references to these numbers
90037817701/1
Product Information
Product Information
M6 x 30 hex. head bolt for multiple applications.

Sold individually. 

Fits:
Porsche 986 Boxster 1997-04

Porsche 987-1 Boxster 2005-08
Porsche 987-1 Cayman 2005-08

Porsche 993 Carrera 1994-98
Porsche 993 Turbo 1995-98

Porsche 996 Carrera 1998-05
Porsche 996 Turbo 2001-05
Porsche 996 GT3 1999-05

Porsche Carrera GT 2004-06

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

90037817701
90037817701
90037817709
90037811609
90037801409

The product you are viewing cross references to these numbers
Special Order item
99751274201
Product Information
Product Information
Radiator hose retaining clamp
This retaining clamp is designed to secure the radiator coolant hose assembly in its correct position, helping maintain proper hose alignment and prevent unwanted movement within the cooling system.
Sold each

Fits:
Porsche 987.1 Boxster / S 2005 - 2008
Porsche 987.2 Boxster / S 2009 - 2012
Porsche 987C.1 Cayman / S 2006 - 2008
Porsche 987C.2 Cayman / S 2009 - 2012
Porsche 997.1 Carrera 3.6L /  3.8L 2005 - 2008 CABRIO/COUPE
Porsche 997.2 Carrera 3.6L /  3.8L  2009 - 2010 CABRIO/COUPE

Diagram ref no 

Designed to meet Porsche's original equipment specifications, this replacement component provides secure fastening and reliable support for the associated radiator hose connections.

Ideal for replacing worn, damaged or missing original clamps during radiator repairs, coolant hose replacement or cooling system maintenance.

Previous Porsche Part Number: 99710690100.

What Does This Part Do? – Functions
  • Secure Hose Retention: Helps hold radiator coolant hoses firmly in position.
  • Correct Alignment: Maintains proper positioning of associated cooling system connections.
  • Vibration Resistance: Reduces unwanted hose movement during vehicle operation.
  • Component Support: Helps protect hose connections from unnecessary mechanical stress.
  • Original Fitment: Supports factory-correct cooling system assembly.

Why Replace This Part?
Over time, radiator hose retaining clamps can become worn, weakened or damaged due to heat exposure, vibration and ageing. A damaged or missing clamp may allow excessive hose movement, potentially placing additional stress on the cooling system connections.

Replacing it with a genuine Porsche component helps restore secure hose retention, maintain correct alignment and support the reliability of the radiator cooling system.

When to Replace This Part?
  • Physical Damage: Cracked, broken or deformed retaining clamp.
  • Loose Hoses: Excessive movement around radiator hose connections.
  • Corrosion: Visible deterioration affecting clamp strength.
  • Missing Clamp: Original retaining component has been lost or removed.
  • 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 retaining clamp is installed within the front radiator assembly, securing the associated coolant hose connection in its designated position. It helps maintain correct hose routing and alignment around the radiator mounting area.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99751274201
99751274201
99710690100

The product you are viewing cross references to these numbers
Special Order item
99710654002
Product Information
Product Information
Support bracket for water coolant pipes. 2 per vehicle. Sold as each.

Fits:
Porsche 987 Boxster 2005-2008
Porsche 987C Cayman 2006-2008
Porsche 987.2 Boxster 2009-2012
Porsche 987C.2 Cayman 2009-2012
Porsche 996 Carrera / Turbo1998-2005 
Porsche 997.1 Carrera / Turbo / GT3 2005-2008
Porsche 997.2 Carrera / Turbo / GT3 2009-2012

Diagram ref no 23


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Related, superseded, cross reference or alternative numbers for comparison.

99710654002
99710654002

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DISPLAYING 1 to 9 (of 9 products)
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About Hose Clips / Screws / Brackets and Fixings

Hose Clips, Screws, Brackets & Fixings for Reliable Coolant System Performance

Hose clips, screws, brackets and fixings are the essential hardware that keeps your coolant hoses, pipes and auxiliary lines securely in place. These compact but critical components maintain stable pressure, prevent coolant leaks, and ensure the entire cooling system functions efficiently under varying temperatures and engine loads. Whether you're upgrading cooling components, performing routine maintenance or completing a restoration project, dependable hose fixings are vital to long-term engine health.

What Hose Clips, Screws, Brackets & Fixings Do

Cooling systems operate under constant pressure and temperature fluctuations.

These fittings perform several key roles:

  • Securing coolant hoses and pipes to prevent movement, abrasion or disconnection
  • Maintaining a reliable seal against leaks and pressure drops
  • Supporting correct routing of hoses throughout the engine bay
  • Preventing vibration damage by keeping lines firmly positioned
  • Ensuring proper airflow and coolant flow by holding components safely in place

From simple worm-drive hose clamps to engineered brackets made for specific vehicle models, these components are designed to ensure stability and performance.

Why Hose Clips & Fixings Commonly Fail

Over time, coolant system fixings endure significant strain from heat cycles, vibration and coolant exposure.

Common reasons for failure include:

  • Corrosion due to moisture or coolant seepage
  • Material fatigue or weakened tension from age
  • Cracked or brittle brackets caused by heat stress
  • Over-tightening or incorrect installation leading to thread damage
  • Degraded rubber insulators on mounting brackets
  • Hose expansion causing clamps to loosen

When these components weaken, the system can no longer maintain proper pressure, often resulting in leaks, overheating, or hose detachment.

Why You Should Replace Worn Hose Clips & Fixings

Replacing worn or damaged fixings with high-quality, precision-made replacement components designed to match original performance levels ensures your cooling system remains secure, leak-free and efficient.

Benefits of replacing them include:

  • Restored clamping strength and sealing reliability
  • Reduced risk of coolant leaks and overheating
  • Proper alignment and support for coolant hoses and pipes
  • Improved durability under heat and vibration
  • Enhanced long-term cooling system resilience

Quality fixings are a small investment that protect major engine components, ensuring dependable performance in both daily driving and high-demand conditions.

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