Water radiator top hose intake LEFT. Porsche 996 C2/C4 Manual  ›  99610662158

OE Match radiator pipe replacement kit, intended for renewing corroded or leaking coolant pipework around the front wheels and across the front cooling circuit.

Fits

• Porsche 997 Gen 1
  997 MK1 Carrera 2 3.6L 2005-08
  997 MK1 Carrera 2S 3.8L 2005-08
  997 MK1 Carrera 4 3.6L 2005-08
  997 MK1 Carrera 4S 3.8L 2005-08
• Porsche 997 Gen 2
  997 MKII Carrera C2 3.6L 2009-12
  997 MKII Carrera C4 3.6L 2009-12
  997 MKII Carrera C2S 3.8L 2009-12
  997 MKII Carrera C4S 3.8L 2009-12
• Porsche 987 Boxster Gen 1
  Boxster 987 2.7L 2005-08/08
  Boxster 987 S 3.2/3.4L 2005-08/08
• Porsche 987 Boxster Gen 2
  Boxster 987 MKII 2.9L 2009-12
  Boxster S 987 MKII 3.4L 2009-12
• Porsche 987C Cayman Gen 1
  Cayman 2.7L 987C 2006-08
  Cayman S 3.4L 987C 2005-08
• Porsche 987C Cayman Gen 2
  Cayman 2.9L 987C MKII 2009-12
  Cayman S / R 3.4L 987C MKII 2009-12
  
  

Check fitment for your specific vehicle (model, year, engine) before ordering.


What This Product Does

The replacement pipework carries coolant through the radiator-section supply and return circuits. It addresses deteriorated connections and crossover pipes where corrosion or seepage has developed.

Functions

• Conveys coolant through the front cooling circuit.
• Connects supply and return pipework.
• Replaces affected pipes and hoses during cooling-system repairs.
  
  

Technical Details

• Supply cross tube reference: 99710671103; return cross tube reference: 99710672003.
• Connecting hose reference: 99710672307; diagram quantity: 2.
• Distributor tube references: 99710675104 and 99710675204. Supply and return descriptions vary between the supplied application diagrams.
• Left-side hose references: 99710662303 and 99710672803; right-side hose references: 99710662703 and 99710662403.
• Sleeve reference: 99710655103; diagram quantity: 2.
• Supplied 997.1 Carrera diagram identifies M96.05 3.6L and M97.01 3.8L Coupé/Cabriolet applications, 2005–08.
  
  

Symptoms of Fault

• Coolant collecting beneath the front of the vehicle.
• Damp connectors, staining or dried coolant deposits.
• A sweet odour accompanied by falling coolant levels.
• Low-coolant warnings, gurgling or increasing temperature readings.
  
  

Why Replacement Matters

Corrosion and ageing joints can allow coolant to escape. Renewing affected pipework addresses the leak source; adjoining hoses, seals, clips and supports should also be inspected rather than assuming the pipes alone explain every cooling fault.

FAQs

How can the leak source be confirmed?
A cooling-system pressure test can help distinguish leaking pipe joints from radiator or other cooling-component faults.

Does the kit provide every installation consumable?
Check the component contents against the planned repair. Do not assume coolant, additional seals, clips or mounting hardware are included.

Is gurgling proof of a failed pipe?
No. Low coolant or trapped air can produce similar sounds, so diagnosis is needed before replacing components.