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Engine Block Hoses

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DISPLAYING 65 to 80 (of 111 products)
<< 4 5 6 7
Special Order item
94810642112
Product Information
Product Information
Cooling Water Tube, Return.

The Cooling Water Tube, Return is a genuine Porsche OEM coolant return pipe designed to route returning coolant through the engine cooling system. This rigid connector tube helps maintain correct coolant circulation and system pressure, supporting stable engine operating temperatures and reliable heating performance. Manufactured to Porsche specifications, it provides precise fitment and durability for Porsche 957 / 958 / 970 models.

Fits:

  • Porsche 957 Cayenne S/GTS 4.8L 2007-10
  • Porsche 957 Cayenne Turbo / Turbo S 4.8L 2007-10
  • Porsche 958 Cayenne S V8 4.8L Petrol 400HP 2010-17
  • Porsche 958 Cayenne GTS V8 4.8L Petrol 400HP 2010-17
  • Porsche 958 Cayenne Turbo V8 4.8L Petrol 500HP 2010-17
  • Porsche 958 Cayenne Turbo S V8 4.8L Petrol 550HP 2010-17
  • Porsche 970.1 Panamera V6 3.6L 2WD 2009-13
  • Porsche 970.1 Panamera 4 V6 3.6L 4WD 2009-13
  • Porsche 970.1 Panamera S V8 4.8L 2009-13
  • Porsche 970.1 Panamera 4S V8 4.8L 2009-13
  • Porsche 970.1 Panamera GTS V8 4.8L 2011-13
  • Porsche 970.1 Panamera Turbo V8 4.8L 2009-13
  • Porsche 970.1 Panamera Turbo S V8 4.8L 2009-13
  • Porsche 970.2 Panamera V6 3.6L 2WD (310Hp) 2014-16
  • Porsche 970.2 Panamera 4 V6 3.6L 4WD (310Hp) 2014-16
  • Porsche 970.2 Panamera GTS V8 4.8L 4WD (440Hp) 2014-16
  • Porsche 970.2 Panamera Turbo V8 4.8L (520Hp) 2014-16
  • Porsche 970.2 Panamera Turbo V8 Executive 2014-16
  • Porsche 970.2 Panamera Turbo S V8 4.8L 2014-16 

Diagram Ref No 13 (Diagram Ref No 2 Included)

What This Product Does:

  • Routes returning coolant through the cooling system to complete the circulation loop.
  • Helps maintain proper coolant flow and pressure, ensuring efficient heat transfer and stable engine temperatures.
  • Supports reliable engine cooling by ensuring coolant can flow back toward other cooling components without restriction.
  • Provides a rigid, durable coolant pathway, reducing the risk of kinking or collapse compared to flexible hoses.

Symptoms Of Wear Or Failure:
  • Coolant may drip or seep from the tube itself or from the hose connection points, often leaving staining or residue.
  • A leaking return tube can cause gradual coolant loss, requiring frequent top-ups.
  • If the return pipe leaks or becomes restricted, coolant circulation can be disrupted, causing rising or fluctuating engine temperatures.
  • A noticeable sweet smell in the engine bay is often a sign of coolant escaping from the system.
  • Common visible signs include corrosion/pitting, cracking near joints, weakened metal around fittings or mounting areas
  • Poor coolant circulation can affect the heater circuit, leading to weak or inconsistent cabin heat.
  • Modern Porsche models may trigger low coolant or overheating warnings if the tube begins to fail.

Why Replacement Matters:
  • Prevents coolant leaks that cause low coolant levels and loss of system pressure.
  • Helps avoid engine overheating, which can result in severe and costly engine damage.
  • Restores proper coolant circulation, ensuring the cooling system functions efficiently under all driving conditions.
  • Maintains reliable heater performance, since consistent coolant flow is required for the heater core to work correctly.
  • Protects surrounding components, as leaking coolant can damage hoses, sensors, seals, and nearby engine parts.



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

94810642112
94810642112
94810642104
94810642110

The product you are viewing cross references to these numbers
94810642112/1
Product Information
Product Information
Cooling Water Tube, Return.

The Cooling Water Tube, Return is a OE MATCH coolant return pipe designed to route returning coolant through the engine cooling system. This rigid connector tube helps maintain correct coolant circulation and system pressure, supporting stable engine operating temperatures and reliable heating performance. It provides precise fitment and durability for Porsche 957 / 958 / 970 models.

Fits:

  • Porsche 957 Cayenne S/GTS 4.8L 2007-10
  • Porsche 957 Cayenne Turbo / Turbo S 4.8L 2007-10
  • Porsche 958 Cayenne S V8 4.8L Petrol 400HP 2010-17
  • Porsche 958 Cayenne GTS V8 4.8L Petrol 400HP 2010-17
  • Porsche 958 Cayenne Turbo V8 4.8L Petrol 500HP 2010-17
  • Porsche 958 Cayenne Turbo S V8 4.8L Petrol 550HP 2010-17
  • Porsche 970.1 Panamera V6 3.6L 2WD 2009-13
  • Porsche 970.1 Panamera 4 V6 3.6L 4WD 2009-13
  • Porsche 970.1 Panamera S V8 4.8L 2009-13
  • Porsche 970.1 Panamera 4S V8 4.8L 2009-13
  • Porsche 970.1 Panamera GTS V8 4.8L 2011-13
  • Porsche 970.1 Panamera Turbo V8 4.8L 2009-13
  • Porsche 970.1 Panamera Turbo S V8 4.8L 2009-13
  • Porsche 970.2 Panamera V6 3.6L 2WD (310Hp) 2014-16
  • Porsche 970.2 Panamera 4 V6 3.6L 4WD (310Hp) 2014-16
  • Porsche 970.2 Panamera GTS V8 4.8L 4WD (440Hp) 2014-16
  • Porsche 970.2 Panamera Turbo V8 4.8L (520Hp) 2014-16
  • Porsche 970.2 Panamera Turbo V8 Executive 2014-16
  • Porsche 970.2 Panamera Turbo S V8 4.8L 2014-16 

Diagram Ref No 13 (Diagram Ref No 2 Sold Separately)

What This Product Does:

  • Routes returning coolant through the cooling system to complete the circulation loop.
  • Helps maintain proper coolant flow and pressure, ensuring efficient heat transfer and stable engine temperatures.
  • Supports reliable engine cooling by ensuring coolant can flow back toward other cooling components without restriction.
  • Provides a rigid, durable coolant pathway, reducing the risk of kinking or collapse compared to flexible hoses.

Symptoms Of Wear Or Failure:
  • Coolant may drip or seep from the tube itself or from the hose connection points, often leaving staining or residue.
  • A leaking return tube can cause gradual coolant loss, requiring frequent top-ups.
  • If the return pipe leaks or becomes restricted, coolant circulation can be disrupted, causing rising or fluctuating engine temperatures.
  • A noticeable sweet smell in the engine bay is often a sign of coolant escaping from the system.
  • Common visible signs include corrosion/pitting, cracking near joints, weakened metal around fittings or mounting areas
  • Poor coolant circulation can affect the heater circuit, leading to weak or inconsistent cabin heat.
  • Modern Porsche models may trigger low coolant or overheating warnings if the tube begins to fail.

Why Replacement Matters:
  • Prevents coolant leaks that cause low coolant levels and loss of system pressure.
  • Helps avoid engine overheating, which can result in severe and costly engine damage.
  • Restores proper coolant circulation, ensuring the cooling system functions efficiently under all driving conditions.
  • Maintains reliable heater performance, since consistent coolant flow is required for the heater core to work correctly.
  • Protects surrounding components, as leaking coolant can damage hoses, sensors, seals, and nearby engine parts.



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

94810642112
94810642112
94810642104
94810642110

The product you are viewing cross references to these numbers
Special Order item
95810626500
Product Information
Product Information
Cooling water tube.

porsche

Fits:
Porsche 958 Cayenne 3.0L Diesel >>2011

Click 'Zoom in' for large parts diagram.
Diagram ref no 40

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

95810626500
95810626500

The product you are viewing cross references to these numbers
Special Order item
95810636020
Product Information
Product Information
Cooling water tube.

porsche

Fits:
Porsche 958 Cayenne 3.6L 2011-18

Click 'Zoom in' for large parts diagram.
Diagram ref no 37

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

95810636020
95810636020

The product you are viewing cross references to these numbers
Special Order item
95810606500
Product Information
Product Information
Cooling water tube.

porsche

Fits:
Porsche 958 Cayenne 3.0L Diesel 2012-18
Porsche 95B Macan 3.0L Diesel 2014-18
Porsche 970 Panamera 3.0L Diesel 2011-16

Click 'Zoom in' for large parts diagram.
Diagram ref no 17

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

95810606500
95810606500

The product you are viewing cross references to these numbers
Special Order item
95810644402
Product Information
Product Information
Cooling water tube.

porsche

Fits:
Porsche 958 Cayenne 3.0L Hybrid 2012-18
Porsche 970 Panamera 3.0L Hybrid 2012-16

Click 'Zoom in' for large parts diagram.
Diagram ref no 32

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

95810644402
95810644402
95810644401
95810644400

The product you are viewing cross references to these numbers
Special Order item
PAB121065
Product Information
Product Information
Cooling water tube.

porsche

Fits:
Porsche 958 Cayenne 3.0L Hybrid 2011-18
Porsche 970 Panamera 3.0L Hybrid 2012-16

Click 'Zoom in' for large parts diagram.
Diagram ref no 26

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

PAB121065
95810646500
PAB121065

The product you are viewing cross references to these numbers
Special Order item
95510606300
Product Information
Product Information
Cooling water tube.

porsche

Fits:
Porsche 957 Cayenne 3.0L Diesel 2007-10
Porsche 958 Cayenne 3.0L Diesel >>2011

Click 'Zoom in' for large parts diagram.
Diagram ref no 17

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

95510606300
95510606300

The product you are viewing cross references to these numbers
Special Order item
95510607100
Product Information
Product Information
Cooling water tube.

porsche

Fits:
Porsche 957 Cayenne 3.0L 2007-10
Porsche 958 Cayenne 3.0L >>2011

Click 'Zoom in' for large parts diagram.
Diagram ref no 11

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

95510607100
95510607100

The product you are viewing cross references to these numbers
94810606176/1
Product Information
Product Information
Distributor tube water coolant. 

oematch

Fits:
Porsche 958 Cayenne 3.6ltr V6 - 2010 to 2017
Porsche 95B Macan S - 2014 to 2018 (Petrol)
Porsche 95B Macan GTS - 2014 to 2018

Porsche 95B Macan turbo - 2018 to 2018
Porsche 970.2 Panamera S 3.0ltr - 2014 to 2016
Porsche 970.2 Panamera 4S 3.0ltr - 2014 to 2016

Click 'Zoom in' for large parts diagram.
Diagram ref no 1



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

94810606176
94810606176

The product you are viewing cross references to these numbers
Special Order item
94610602660
Product Information
Product Information
Engine coolant vent line.

porsche

Fits:
Porsche 958 Cayenne 3.6L 2011-18
Porsche 95B.1 Macan 3.0L / 3.6L  2014-18
Porsche 970.2 Panamera 3.0L 2013-16

Click 'Zoom in' for large parts diagram.
Diagram ref no 12

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

94610602660
94610602660

The product you are viewing cross references to these numbers
94610602660/1
Product Information
Product Information
Engine coolant vent line. Porsche 958 Cayenne / 95B.1 Macan / 970.2 Panamera 94610602660

oematch

Fits:
Porsche 958 Cayenne 3.6L 2011-18
Porsche 95B.1 Macan 3.0L / 3.6L  2014-18
Porsche 970.2 Panamera 3.0L 2013-16

Click 'Zoom in' for large parts diagram.
Diagram ref no 12

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

94610602660
94610602660

The product you are viewing cross references to these numbers
Special Order item
99970182541
Product Information
Product Information

O-Ring, 19.6 X 3.53N.
The O-Ring 19.6 x 3.53N is a genuine Porsche OEM sealing ring designed to create a tight, leak-free seal between coolant pipe connections and related engine cooling system components. Manufactured to precise dimensions, this O-ring fits into the mating groove of the pipe joint to prevent coolant loss and maintain correct system pressure. It is an essential replacement seal used on various Porsche coolant and inlet pipe applications.

Fits:

  • Porsche 957 Cayenne S/GTS 4.8L 2007-10
  • Porsche 957 Cayenne Turbo / Turbo S 4.8L 2007-10
  • Porsche 958 Cayenne S V8 4.8L Petrol 400HP 2010-17
  • Porsche 958 Cayenne GTS V8 4.8L Petrol 400HP 2010-17
  • Porsche 958 Cayenne Turbo V8 4.8L Petrol 500HP 2010-17
  • Porsche 958 Cayenne Turbo S V8 4.8L Petrol 550HP 2010-17
  • Porsche 970.1 Panamera V6 3.6L 2WD 2009-13
  • Porsche 970.1 Panamera 4 V6 3.6L 4WD 2009-13
  • Porsche 970.1 Panamera S V8 4.8L 2009-13
  • Porsche 970.1 Panamera 4S V8 4.8L 2009-13
  • Porsche 970.1 Panamera GTS V8 4.8L 2011-13
  • Porsche 970.1 Panamera Turbo V8 4.8L 2009-13
  • Porsche 970.1 Panamera Turbo S V8 4.8L 2009-13
  • Porsche 970.2 Panamera V6 3.6L 2WD (310Hp) 2014-16
  • Porsche 970.2 Panamera 4 V6 3.6L 4WD (310Hp) 2014-16
  • Porsche 970.2 Panamera GTS V8 4.8L 4WD (440Hp) 2014-16
  • Porsche 970.2 Panamera Turbo V8 4.8L (520Hp) 2014-16
  • Porsche 970.2 Panamera Turbo V8 Executive 2014-16
  • Porsche 970.2 Panamera Turbo S V8 4.8L 2014-16 

Diagram Ref No 2

What This Product Does:

  • Seals coolant pipe joints to prevent coolant leaks between connected pipes and fittings.
  • Maintains correct cooling system pressure, which is essential for efficient engine temperature control.
  • Creates a tight seal between metal components by compressing inside a groove when the pipe connection is tightened.

Symptoms Of Wear Or Failure:

  • Coolant may seep or drip from the joint where the O-ring seals the connection.
  • A worn O-ring can cause slow coolant loss, leading to frequent topping up.
  • Loss of coolant or system pressure can reduce cooling efficiency and contribute to overheating.
  • A leaking O-ring often produces a noticeable coolant smell near the engine bay.
  • The O-ring may show cracking, flattening (loss of shape), swelling, hardening or brittleness
  • Modern Porsche models may trigger low coolant warnings if leakage occurs.

Why Replacement Matters:

  • Prevents coolant leaks at pipe connections, avoiding coolant loss and contamination.
  • Maintains correct system pressure, which is essential for efficient engine cooling performance.
  • Helps prevent engine overheating, since even a small leak can lead to low coolant levels and temperature rise.
  • Protects surrounding components, as leaking coolant can damage hoses, sensors, connectors, and nearby engine parts.
  • Ensures reliable long-term sealing, since old O-rings harden and flatten over time due to heat and pressure cycles.



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

99970182541
99970182541
99970182540

The product you are viewing cross references to these numbers
Special Order item
95510651100
Product Information
Product Information
Sealing ring coolant connection. 

porsche

Fits:
Porsche 957 Cayenne 3.6ltr V6 - 2007 to 2010
Porsche 958 Cayenne 3.6ltr V6 - 2010 to 2017

Click 'Zoom in' for large parts diagram.
Diagram ref no 23


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

95510651100
95510651100

The product you are viewing cross references to these numbers
95510613100/1
Product Information
Product Information
Thermostat Cover.

The Thermostat Cover is a OE MATCH cooling system component designed to securely house and seal the thermostat within the engine’s cooling circuit. This cover protects the thermostat assembly while ensuring a leak-free connection between the thermostat housing and connected coolant hoses.

Fits:

  • Porsche 957 Cayenne 3.6L 2007-10
  • Porsche 958 Cayenne V6 3.6L Petrol (300Hp) 2010-17

Diagram Ref No 13

What This Product Does:
  • Securing and sealing the thermostat assembly
  • Maintaining correct coolant routing through the thermostat housing
  • Ensuring proper cooling system pressure
  • Preventing coolant leaks at the thermostat connection
  • Supporting stable engine temperature regulation

Symptoms Of Wear Or Failure:
  • Coolant leaks near the thermostat housing
  • Visible cracks or damage to the cover
  • Coolant smell from the engine bay
  • Low coolant warning light
  • Engine overheating due to coolant loss
  • Coolant residue around housing connections

Why Replacement Matters:
  • Prevent coolant leaks and system pressure loss
  • Maintain proper thermostat operation
  • Protect the engine from overheating damage
  • Restore reliable cooling system performance
  • Avoid costly engine repairs caused by heat-related issues



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

95510613100
95510613100

The product you are viewing cross references to these numbers
Special Order item
95510613100
Product Information
Product Information
Thermostat cover. 

porsche

Fits:
Porsche 957 Cayenne 3.6ltr V6 - 2007 to 2010
Porsche 958 Cayenne 3.6ltr V6 - 2010 to 2017

Click 'Zoom in' for large parts diagram.
Diagram ref no 13


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

95510613100
95510613100

The product you are viewing cross references to these numbers
DISPLAYING 65 to 80 (of 111 products)
<< 4 5 6 7
Also found on these pages
About Engine Block Hoses

Engine Block Coolant Hoses – Front Engine Porsche Models | Reliable Cooling for Peak Performance

Engine block coolant hoses are critical to maintaining stable engine temperatures and preventing overheating in your Porsche’s front-engine cooling system. These hoses circulate coolant between the engine block, radiator, and heater core, ensuring consistent temperature regulation and efficient heat dissipation — essential for performance, reliability, and longevity.

At Design911, we supply a complete selection of genuine and manufacturer-quality engine block coolant hoses for front-engine Porsche models, including the transaxle models, Cayenne, Panamera, and Macan. Each hose is precisely engineered for a perfect fit and superior heat resistance, offering the same durability, flexibility, and performance as factory-installed components.

What Do Engine Block Coolant Hoses Do?

Coolant hoses in the engine block are responsible for transferring coolant throughout the engine’s cooling circuit. Their main functions include:

  • Carrying coolant between the radiator, water pump, and engine block.
  • Regulating engine temperature for efficient performance.
  • Maintaining system pressure within the cooling system.
  • Preventing heat build-up that can lead to overheating or gasket failure.

Properly functioning coolant hoses are essential for ensuring your Porsche’s front-mounted engine operates within optimal temperature ranges — especially during heavy use or long drives.

Why Do Engine Block Coolant Hoses Fail?

Due to constant exposure to heat, pressure, and coolant chemicals, these hoses naturally degrade over time. Common causes of failure include:

  • Heat damage from prolonged exposure to high engine temperatures.
  • Rubber deterioration or cracking from age and coolant corrosion.
  • Leaks at joints or clamps due to pressure fluctuations.
  • Swelling or soft spots from internal chemical breakdown.
  • Mechanical abrasion from contact with nearby components.

Symptoms of failing hoses include visible coolant leaks, overheating, low coolant levels, or a strong coolant smell from the engine bay.

Why Replace Faulty Engine Block Coolant Hoses?

A leaking or weakened hose can cause serious cooling system failures, including overheating and engine damage. Replacing old or brittle hoses ensures reliable coolant circulation and safeguards your Porsche’s engine performance.

Benefits of replacement include:

  • Restored cooling efficiency and pressure control.
  • Prevention of leaks and overheating.
  • Improved long-term reliability and system safety.
  • Manufacturer-quality materials for perfect fit and heat resistance.

All replacement hoses in this range are constructed using reinforced, high-grade rubber compounds that meet or exceed factory standards, ensuring durability and dependability in all driving conditions.

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