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Engine Block Hoses
.jpg?width=197 "Coolant Hose With Check Valve. Porsche 957 / 958 Cayenne 3.0L Diesel 2007–11 - 95510630700")
- Porsche 957 Cayenne 3.0L Diesel 2007-10
- Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2010-17
The Genuine Porsche Coolant Hose with Check Valve (95510630700) is an original equipment cooling system component designed for selected Porsche Cayenne models.
Fits:
- Porsche 957 Cayenne 3.0L Diesel 2007-10
- Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2010-11
Diagram Ref No 32
Combining a coolant hose with an integrated one-way check valve, this assembly helps maintain the intended direction of coolant flow within its designated cooling circuit.
The Porsche Cayenne uses a sophisticated liquid cooling system to regulate engine operating temperatures and support the performance and reliability of its powertrain.
During engine operation, coolant circulates through various passages, hoses, heat exchangers and cooling components, carrying heat away from the engine.
For the cooling system to function correctly, the coolant must travel through the appropriate circuits under the intended operating conditions.
Some cooling system branches incorporate non-return valves to prevent unwanted reverse circulation.
The Porsche Coolant Hose with Check Valve 95510630700 provides this function within the corresponding original equipment arrangement.
The integrated valve is designed to permit coolant movement in its specified direction while restricting flow in the opposite direction.
This helps maintain the intended circulation pattern within the associated coolant circuit.
Unlike a conventional hose that simply connects two cooling system components, this assembly also performs a directional flow-control function.
The combination of hose and valve makes correct component selection particularly important.
A damaged hose may allow coolant to escape, while a faulty check valve may interfere with the intended coolant flow.
Over time, exposure to hot coolant, changing system pressures, vibration and thermal cycling can cause deterioration of hose material, connectors or internal valve components.
A worn hose may develop cracks, splits, swelling or leaks.
Similarly, the integrated check valve may become stuck, restricted or unable to prevent reverse flow effectively.
Such faults can affect the operation of the relevant cooling circuit, depending on the valve's installation location and the vehicle's cooling system configuration.
Replacing a confirmed defective assembly with Genuine Porsche part number 95510630700 helps restore the intended hose connection and non-return valve function.
This component is particularly useful during cooling system maintenance, diagnosis of unexplained coolant circulation problems and repairs involving damaged coolant pipework.
As a Genuine Porsche part, it is designed to provide the appropriate original equipment configuration for compatible vehicles.
What This Product Does:
The coolant hose with check valve performs two related functions: carrying coolant through the designated system branch and controlling the direction of flow.
Its primary functions include:
- Transfers Coolant: Provides a passage between the corresponding cooling system components.
- Controls Flow Direction: Uses an integrated check valve to permit flow in the intended direction.
- Prevents Reverse Flow: Restricts unwanted coolant movement in the opposite direction.
- Maintains Coolant Circuit Integrity: Provides a sealed connection within the cooling system.
- Supports Correct Circulation: Helps coolant follow the original Porsche cooling system arrangement.
- Maintains System Pressure Integrity: Helps prevent coolant loss at the hose and valve connections.
- Supports Engine Temperature Management: Contributes to correct operation of the associated cooling circuit.
- Reduces Unwanted Backflow: Helps prevent reverse circulation when pressure conditions change.
- Restores Original Equipment Function: Replaces damaged pipework or a defective non-return valve.
- Maintains Factory Cooling System Routing: Preserves the original installation and connection arrangement.
Symptoms Of Wear Or Failure:
Coolant hoses and non-return valves operate under demanding conditions involving heat, pressure, vibration and continuous contact with engine coolant.
Although the assembly does not normally have a fixed replacement interval, deterioration may eventually require replacement.
Typical symptoms:
- Wetness around the hose.
- Coolant dripping from connections.
- Coloured or crystalline coolant residue.
- Fluid beneath the vehicle.
- Repeated coolant loss.
- Low coolant warning on the instrument display.
- Coolant expansion tank requiring frequent top-ups.
- Cooling system warnings appearing after driving.
- Visible loss of coolant during pressure testing.
- Surface cracking.
- Splits near connection points.
- Hardened or brittle material.
- Visible damage around hose bends.
- Leakage when the system is pressurised.
Why Replacement Matters:
Replacing a damaged coolant hose with check valve helps restore the intended coolant circulation and sealing arrangement.
Because the assembly includes a one-way valve, replacement is important for both preventing leaks and maintaining the designed coolant flow direction.
- Restores Correct Coolant Flow Direction: Re-establishes the integrated non-return valve function.
- Helps Prevent Coolant Leaks: Replaces cracked, split or damaged hose sections.
- Maintains Cooling Circuit Integrity: Restores the original sealed connection.
- Supports Stable Cooling System Operation: Helps preserve the intended circulation pattern.
- Prevents Unwanted Backflow: Restores directional flow control within the relevant circuit.
- Reduces Risk of Coolant Loss: Addresses leaks before they lead to more serious problems.
- Supports Engine Reliability: Helps maintain the cooling system's intended operation.
- Reduces Overheating Risk: Addresses defects that may contribute to reduced coolant circulation or loss.
- Preserves Factory Specification: Maintains the original hose and valve configuration.
- Genuine Porsche Replacement: Provides the original equipment component for compatible vehicles.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95510630700
The product you are viewing cross references to these numbers
- Porsche 957 Cayenne 3.0L Diesel 2007-10
The Coolant Hose is a genuine Porsche cooling system component designed to ensure reliable coolant flow between key engine and radiator components. Built to withstand high temperatures, pressure fluctuations, and constant heat cycling, this hose plays a crucial role in maintaining stable engine operating temperatures.
Fits:
- Porsche 957 Cayenne 3.0L Diesel 2007-10
Diagram Ref No 34
What This Product Does:
- Transferring coolant through the engine cooling circuit
- Maintaining consistent coolant circulation
- Supporting correct cooling system pressure
- Helping regulate engine operating temperature
- Preventing overheating during everyday and high-load driving
Symptoms Of Wear Or Failure:
- Coolant leaks or visible fluid under the vehicle
- Cracked, brittle, swollen, or soft hose material
- Coolant smell from the engine bay
- Low coolant warning light
- Engine overheating or fluctuating temperature gauge
- Steam from the engine compartment
- Coolant residue around hose joints
Why Replacement Matters:
- Prevent sudden coolant loss and breakdowns
- Maintain proper coolant circulation and system pressure
- Protect the engine from overheating damage
- Restore cooling system reliability
- Avoid expensive repair costs caused by overheating
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95510606120
The product you are viewing cross references to these numbers
- Porsche 957 Cayenne 3.0L Diesel 2007-10
The Coolant Hose is a OE MATCH cooling system component designed to ensure reliable coolant flow between key engine and radiator components. Built to withstand high temperatures, pressure fluctuations, and constant heat cycling, this hose plays a crucial role in maintaining stable engine operating temperatures.
Fits:
- Porsche 957 Cayenne 3.0L Diesel 2007-10
Diagram Ref No 34
What This Product Does:
- Transferring coolant through the engine cooling circuit
- Maintaining consistent coolant circulation
- Supporting correct cooling system pressure
- Helping regulate engine operating temperature
- Preventing overheating during everyday and high-load driving
Symptoms Of Wear Or Failure:
- Coolant leaks or visible fluid under the vehicle
- Cracked, brittle, swollen, or soft hose material
- Coolant smell from the engine bay
- Low coolant warning light
- Engine overheating or fluctuating temperature gauge
- Steam from the engine compartment
- Coolant residue around hose joints
Why Replacement Matters:
- Prevent sudden coolant loss and breakdowns
- Maintain proper coolant circulation and system pressure
- Protect the engine from overheating damage
- Restore cooling system reliability
- Avoid expensive repair costs caused by overheating
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95510606120
The product you are viewing cross references to these numbers
- Porsche 957 Cayenne 3.0L Diesel 2007-10
- Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2010-17
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 29
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95510630200
The product you are viewing cross references to these numbers
- Porsche 957 Cayenne 3.0L Diesel 2007-10
- Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2010-17
Fits:
Porsche 957 Cayenne 3.0L Diesel 2007-10
Porsche 958 Cayenne 3.0L Diesel >>2017
Click 'Zoom in' for large parts diagram.
Diagram ref no 15
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95510637300
The product you are viewing cross references to these numbers
- Porsche 957 Cayenne 3.0L Diesel 2007-10
- Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2010-17
Fits:
Porsche 957 Cayenne 3.0L Diesel 2007-10
Porsche 958 Cayenne 3.0L Diesel >>2017
Click 'Zoom in' for large parts diagram.
Diagram ref no 47
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95510657300
The product you are viewing cross references to these numbers
- Porsche 957 Cayenne 3.0L Diesel 2007-10
- Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2010-17
Fits:
Porsche Cayenne 957 3.0L Diesel 2007-10
Porsche Cayenne 958 3.0L Diesel >>2011
Click 'Zoom in' for large parts diagram.
Diagram ref no 48
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95510657400
The product you are viewing cross references to these numbers
- Porsche 957 Cayenne 3.0L Diesel 2007-10
- Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2010-17
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
The product you are viewing cross references to these numbers
- Porsche 957 Cayenne 3.0L Diesel 2007-10
- Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2010-17
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
The product you are viewing cross references to these numbers
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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