Water Hose. Porsche 957 Cayenne 3.0L Diesel 2007–10 › 95510610300

Water Hose.
This Porsche water hose carries coolant through its section of the engine cooling circuit on the Cayenne 957 3.0L Diesel. It connects its designated cooling-system connections as part of the coolant plumbing.

Fits:

• Porsche Cayenne 9PA1 (957) 3.0L Diesel 2007–10, PR:D50

Diagram Ref No 20
 
Check fitment for your specific vehicle (model, year, engine) before ordering. Confirm the PR:D50 application and part number against your vehicle.

What Is This Part?
This is a coolant-carrying hose associated with the coolant cooling system / coolant expansion tank assembly. It forms one section of the connected hose-and-pipe network through which coolant circulates. The hose body and its ends must remain sound, while the adjoining connections and retaining fixings must also be in serviceable condition. When investigating coolant loss, inspect these areas together rather than assuming that any dampness identifies the hose itself as faulty. 

What Does This Part Do?

• Carries coolant: Provides a passage through its designated section of the cooling circuit.
• Connects the coolant plumbing: Joins the connection points assigned to this hose within the assembly.
• Contains coolant: Works with its mating connections and retaining fixings to keep coolant within the circuit.

Why Replace This Part?
Replacement is appropriate when inspection confirms leakage through the hose body, damaged ends or deterioration that makes the hose unsuitable for refitting. Cracks near the ends, localised soft spots and bulging are useful warning signs when assessing coolant-hose condition. Inspect the whole accessible length, not just the area where coolant has collected. 

A falling coolant level does not establish that this particular hose needs replacing. Check neighbouring pipes, connections and retaining hardware before selecting parts. During related cooling-system work, assess the removed hose and its connections; removal alone is not a reason to discard a serviceable component.

When to Replace This Part?

• Confirmed leakage: Coolant escapes through the hose body or a damaged end.
• Cracked ends: Splits or cracks are visible around the hose connections.
• Soft spots: Localised changes in firmness suggest deterioration.
• Bulging: A distorted section indicates that the hose needs closer assessment.
• Physical damage: Cuts, rubbing or damaged seating surfaces make secure refitting unsuitable.

Cracks, soft spots and bulges are established coolant-hose inspection indicators. Inspect only when the engine and cooling system are cold; do not open the expansion tank while hot or pressurised. 

Where Is This Part Fitted?
Location: Within the engine cooling circuit, associated with the coolant cooling system / coolant expansion tank assembly.

Product Summary

• Product: Water / coolant hose.
• Brand: Porsche.
• Part number: 95510610300.
• Purpose: Carries coolant through its section of the engine cooling circuit.
• Application restriction: PR:D50.

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

95510610300

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