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Water Hose, 18 X 3,5 X 50. Porsche 986 Boxster / 987 Boxster / 987C Cayman - 90018106250
90018106250
Vehicle Group
- Porsche Boxster 986 2.5L 1997-99
- 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, 18 X 3,5 X 50.
The Genuine Porsche Water Hose 90018106250 is a short coolant connector hose used within the water-cooling circuit associated with the Tiptronic automatic-transmission heat exchanger on selected Porsche Boxster and Cayman models.
Sold Each.
x2 Required Per Car.
Fits:
Cars With Option Codes:
249 - Tiptronic Transmission
Diagram Ref No 11
Although positioned within the transmission-cooling system, this hose carries engine coolant rather than automatic transmission fluid.
Coolant circulating through the ATF heat exchanger transfers heat between the engine cooling system and the automatic transmission fluid, helping the transmission reach and maintain an appropriate operating temperature.
Because the hose operates as part of the pressurised engine cooling system, it must remain flexible, securely clamped and completely leak-free.
Age, heat, coolant exposure and repeated pressure cycles can eventually cause the rubber to harden, swell, crack or lose its ability to seal correctly.
Replacing a deteriorated hose helps restore coolant-system integrity and reduces the risk of coolant loss, transmission heat-exchanger problems and engine overheating.
What This Product Does:
This hose provides a short flexible coolant connection within the Tiptronic transmission oil-cooling circuit.
Its functions include:
- Carrying engine coolant through the transmission heat-exchanger circuit.
- Maintaining coolant circulation around the ATF cooler.
- Helping regulate automatic-transmission fluid temperature.
- Maintaining a sealed and pressurised cooling circuit.
- Providing flexibility between adjoining rigid coolant components.
- Accommodating vibration and thermal movement.
- Preventing coolant loss at the connection.
Symptoms Of Wear Or Failure:
Common symptoms include:
- Visible coolant leakage.
- Coolant residue around the hose.
- Damp hose connections.
- Gradual loss of coolant.
- Low-coolant warning.
- Sweet coolant smell.
- Drips beneath the vehicle.
- Cracked rubber.
- Hardened hose material.
- Soft or swollen rubber.
- Bulging.
- Leakage around the hose clamps.
- Engine temperature rising above normal.
- Steam following a major coolant leak.
Why Replacement Matters:
Replacing a worn or leaking water hose helps restore:
- Cooling-system sealing.
- Correct coolant circulation.
- Proper system pressure.
- Reliable ATF heat-exchanger cooling.
- Stable engine operating temperature.
- Reduced risk of coolant loss.
- Long-term cooling-system reliability.
A small coolant hose is inexpensive compared with the potential consequences of major coolant loss or overheating.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90018106250
90018106250
90018106050
The product you are viewing cross references to these numbers
Price: £22.18
In stock
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Information
PDK Gearbox Coolant Hose, Feed.
Maintain proper transmission cooling and performance with the PDK Gearbox Coolant Hose, Feed. This OEM-quality hose is designed to deliver coolant to the PDK gearbox cooling circuit, helping regulate transmission temperatures under normal driving and high-performance conditions.
Fits:
Diagram Ref No 7
What This Product Does:
Symptoms Of Wear Or Failure:
Related reference numbers
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The product you are viewing cross references to these numbers
Maintain proper transmission cooling and performance with the PDK Gearbox Coolant Hose, Feed. This OEM-quality hose is designed to deliver coolant to the PDK gearbox cooling circuit, helping regulate transmission temperatures under normal driving and high-performance conditions.
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Diagram Ref No 7
What This Product Does:
- Feeds coolant into the PDK gearbox cooling circuit
- Helps dissipate heat generated by the transmission
- Maintains stable gearbox operating temperatures
- Protects internal transmission components from heat-related wear
- Supports smooth shifting and overall transmission performance
Symptoms Of Wear Or Failure:
- Coolant leaks near the transmission or under the vehicle
- Low coolant warning light
- Frequent coolant top-offs
- Transmission temperature warning message
- Gearbox running hotter than normal
- Reduced transmission performance or protective limp mode
- Coolant residue or staining around hose fittings
- Cracked, brittle, or swollen hose material
- Steam from under the vehicle in severe cases
- The PDK gearbox coolant feed hose is essential for delivering coolant to the transmission cooling system. If this hose becomes worn, cracked, or begins to leak, coolant flow to the gearbox cooler can be reduced or lost entirely.
- Failure to replace a damaged hose may result in elevated transmission temperatures, reduced performance, or the transmission entering protective (limp) mode. Prolonged overheating can lead to premature wear of internal components and costly repairs.
- Replacing the hose ensures consistent coolant supply to the PDK system, maintains stable operating temperatures, and helps protect the transmission for long-term reliability and performance.
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Price: £92.12
Orderable
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Information
PDK Gearbox Coolant Hose, Feed.
Maintain proper transmission cooling and performance with the PDK Gearbox Coolant Hose, Feed. This OE MATCH hose is designed to deliver coolant to the PDK gearbox cooling circuit, helping regulate transmission temperatures under normal driving and high-performance conditions.
Fits:
Diagram Ref No 7
What This Product Does:
Symptoms Of Wear Or Failure:
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9G230706500
The product you are viewing cross references to these numbers
Maintain proper transmission cooling and performance with the PDK Gearbox Coolant Hose, Feed. This OE MATCH hose is designed to deliver coolant to the PDK gearbox cooling circuit, helping regulate transmission temperatures under normal driving and high-performance conditions.
Fits:
- Porsche Boxster 718 2.0L Manual (300 Bhp) 2017>>
- Porsche Boxster 718 2.0L PDK (300 Bhp) 2017>>
- Porsche Boxster S 718 2.5L Manual (350 Bhp) 05/2017>>
- Porsche Boxster S 718 2.5L PDK (350 Bhp) 05/2017>>
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Diagram Ref No 7
What This Product Does:
- Feeds coolant into the PDK gearbox cooling circuit
- Helps dissipate heat generated by the transmission
- Maintains stable gearbox operating temperatures
- Protects internal transmission components from heat-related wear
- Supports smooth shifting and overall transmission performance
Symptoms Of Wear Or Failure:
- Coolant leaks near the transmission or under the vehicle
- Low coolant warning light
- Frequent coolant top-offs
- Transmission temperature warning message
- Gearbox running hotter than normal
- Reduced transmission performance or protective limp mode
- Coolant residue or staining around hose fittings
- Cracked, brittle, or swollen hose material
- Steam from under the vehicle in severe cases
- The PDK gearbox coolant feed hose is essential for delivering coolant to the transmission cooling system. If this hose becomes worn, cracked, or begins to leak, coolant flow to the gearbox cooler can be reduced or lost entirely.
- Failure to replace a damaged hose may result in elevated transmission temperatures, reduced performance, or the transmission entering protective (limp) mode. Prolonged overheating can lead to premature wear of internal components and costly repairs.
- Replacing the hose ensures consistent coolant supply to the PDK system, maintains stable operating temperatures, and helps protect the transmission for long-term reliability and performance.
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Price: £61.50
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Information
PDK Gearbox Coolant Hose, Return.
Diagram Ref No 9
What This Product Does:
Symptoms Of Wear Or Failure:
Related reference numbers
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9G230707904
The product you are viewing cross references to these numbers
Ensure proper transmission cooling and long-term gearbox performance with the PDK Gearbox Coolant Hose, Return. This OE return hose is designed to carry coolant back from the PDK gearbox cooling circuit, helping maintain consistent coolant circulation and stable operating temperatures.
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Diagram Ref No 9
What This Product Does:
- Returns coolant from the PDK gearbox cooling system
- Maintains continuous coolant circulation through the transmission cooler
- Helps remove excess heat from the PDK gearbox
- Supports stable transmission temperatures and smooth performance
- Helps prevent overheating and heat-related transmission wear
Symptoms Of Wear Or Failure:
- Coolant leaks near the transmission or under the vehicle
- Low coolant warning light
- Frequent need to top off coolant
- Transmission temperature warning message
- Gearbox running hotter than normal
- Transmission entering limp mode due to overheating
- Coolant residue or dampness around hose fittings
- Cracked, brittle, swollen, or soft hose material
- Steam from beneath the vehicle in severe cases
- The PDK gearbox coolant return hose is essential for maintaining proper coolant circulation through the transmission cooling system. If this hose becomes cracked, weakened, or begins to leak, coolant flow may be reduced and transmission temperatures can rise quickly.
- Failure to replace a worn hose can lead to coolant loss, overheating, reduced transmission performance, and potential internal gearbox damage. In severe cases, the transmission may enter protective limp mode to prevent further harm.
- Replacing the return hose restores reliable coolant circulation, supports stable gearbox temperatures, and helps protect the PDK transmission for long-term performance and durability.
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Orderable