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Coolant return water hose. Porsche 996 3.6L C2 MANUAL › 99610684110

Coolant return water hose. Porsche 996 3.6L C2 MANUAL - 99610684110, 99610684108, 99610684104 - URO-004733, 1614300400
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99610684110/1
Product Information
Product Information
Coolant return water hose, From engine return pipe to main return pipe.
OE Match coolant return water hose for Porsche 996 Carrera 2 3.6L models with 6-speed manual transmission. This hose connects the engine return pipe to the main return pipe, forming part of the vehicle’s engine cooling circuit. Suitable for replacing an aged, cracked, leaking or damaged original coolant hose where part number 99610684110 is specified.

Fits:
Porsche 996 C2 2002 - 2005
 * with 6-Speed Manual Transmission

Diagram ref no 3

This coolant return hose carries engine coolant between the engine return pipe and the main return pipe within the cooling system. It is designed for Porsche 996 C2 3.6L models fitted with the 6-speed manual transmission and replaces earlier references 99610684108 and 99610684104.

What this part does
  • Connects the engine return pipe to the main return pipe
  • Carries coolant through the engine cooling circuit 
  • Helps maintain correct coolant circulation 
  • Supports stable engine operating temperatures
  • Replaces aged, split or leaking coolant hoses 
  • Suitable for cooling system servicing or overhaul
  • Supplied as an OE Match replacement part

Why Replace This Part?
Coolant hoses are exposed to repeated heat cycles, cooling system pressure and engine-bay temperatures. Over time, the hose material can harden, crack, swell or deteriorate. A damaged return hose may contribute to:
  • Coolant leaks
  • Loss of coolant
  • Reduced cooling system pressure
  • Overheating
  • Coolant residue around hose connections
  • Increased risk of cooling system failure

Replacing deteriorated hoses helps maintain a sealed and reliable cooling system.

When to Replace This Part
Hose is leaking coolant Rubber is cracked or hardened Hose is swollen or deteriorated Connections show signs of coolant seepage Cooling system is being refurbished Associated coolant pipes are being replaced

Where it fits on the car
Fits within the engine coolant return circuit, connecting the engine return pipe to the main return pipe.


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Related, superseded, cross reference or alternative numbers for comparison.

99610684110
99610684110
99610684108
99610684104

The product you are viewing cross references to these numbers