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Water Hose, Supply. Porsche 986 Boxster / 987 Boxster / Cayman 2000-08 - 99610621212
99610621212
Vehicle Group
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005 -08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
Information
Water Hose, Supply.
Restore the core coolant routing of your Porsche with this genuine OEM water hose. This 3-way supply hose is designed for models such as the Porsche Boxster (2000-2008) and Porsche Cayman (2006-2008) with automatic Tiptronic transmission. Engineered to Porsche’s exact specifications, this hose ensures correct coolant flow, high durability under heat and pressure, and a perfect fit.
Fits:
249 - Tiptronic Transmission
Diagram Ref No 5
What This Product Does:
Symptoms Of Wear / Damage / When To Replace:
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610621212
The product you are viewing cross references to these numbers
Restore the core coolant routing of your Porsche with this genuine OEM water hose. This 3-way supply hose is designed for models such as the Porsche Boxster (2000-2008) and Porsche Cayman (2006-2008) with automatic Tiptronic transmission. Engineered to Porsche’s exact specifications, this hose ensures correct coolant flow, high durability under heat and pressure, and a perfect fit.
Fits:
- Porsche Boxster 986 2.7L 2000-02
- Porsche Boxster S 986 3.2L 2000-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005 -08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
249 - Tiptronic Transmission
Diagram Ref No 5
What This Product Does:
- This water hose is part of the engine cooling system — it routes coolant between components of the cooling circuit (likely between the water pump / oil cooler / radiator or similar) doing a “3-way” path.
- It ensures coolant flows properly, helping regulate engine temperature, protect components from overheating, and maintain correct thermal management.
- Because modern Porsche engines operate with tight tolerances and high performance, correct hose routing, quality of hose material, and correct diameter are important to avoid flow restrictions, leaks or hose collapse.
Symptoms Of Wear / Damage / When To Replace:
- Visible cracking, bulging, swelling or hose softening at clamps or along the hose length — hose material degrades with heat, age and coolant exposure.
- Coolant leaks around the hose or hose clamps — signs of coolant around the hose, white or green crust, or low coolant level without obvious reason.
- Overheating or elevated engine temperatures — if a hose is degraded or collapsed, it can restrict flow and reduce cooling system efficiency.
- During engine work: If you’re already removing parts of the cooling system (water pump, oil cooler, hoses) and the hose looks old, it’s sensible to replace this unit to avoid future failure.
- Ensuring coolant integrity and flow: A failing hose can compromise coolant flow and temperature regulation, potentially leading to serious engine damage.
- Prevents unexpected breakdowns: Considering the cost of engine damage, or expenses related to overheating, replacing aged hoses is cost-effective preventive maintenance.
- Supports longevity and reliability: Especially in performance vehicles like Boxster/Cayman, cooling system maintenance matters for engine life, performance consistency and resale value.
- Saves labour in the long term: Since many cooling hoses are hidden or routed behind other components, replacing while you have access prevents having to revisit the job later.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610621212
99610621212
99610621210
99610621206
The product you are viewing cross references to these numbers
€38.32
Now €34.49
In stock