Breather Line. Porsche 996 Carrera / Turbo 1998-05 - 99610676
99610676
Vehicle Group
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
Information
Breather Line.
Renew the ventilation path on your Porsche 911 (996-series) with these genuine breather / vent hoses. Designed for 1998-2005 911 (996) models (including Carrera, Turbo variants) these hoses ensure your engine’s breather or cooling-vent line operates correctly—preventing vapour or pressure buildup, supporting correct engine ventilation and maintaining system reliability.
Fits:
Diagram Ref No 21 And 22
What This Product Does:
Symptoms Of Wear, Damage Or When To Replace:
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Renew the ventilation path on your Porsche 911 (996-series) with these genuine breather / vent hoses. Designed for 1998-2005 911 (996) models (including Carrera, Turbo variants) these hoses ensure your engine’s breather or cooling-vent line operates correctly—preventing vapour or pressure buildup, supporting correct engine ventilation and maintaining system reliability.
Fits:
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
Diagram Ref No 21 And 22
What This Product Does:
- In the context of the engine / cooling / ventilation system, a “breather line” or “vent hose / vent line” allows controlled venting of crankcase or cooling system gases, or supports the cooling/overflow/expansion system to relieve pressure, direct vapour, or provide required venting.
- These hoses ensure air or vapour that builds up is not trapped in the engine/cooling system, allow system pressure to stabilise, and maintain correct service behaviour of the engine’s ventilation or cooling circuits.
- They also help prevent buildup of pressure/vapour that could otherwise lead to malfunction, leaks or driveability issues.
Symptoms Of Wear, Damage Or When To Replace:
- Hose visible damage, cracking, brittleness or detachment — Over time, heat and age degrade rubber/hose materials.
- Engine or cooling system venting issues — for example, if you smell vapour/odour, see coolant or oil vapour escaping in unusual places, or lid caps popping off unexpectedly.
- Unusual noise or hissing from the engine bay or venting hose areas—possibly indicating a leak or damaged hose.
- Performance degradation in the ventilation/cooling system—such as elevated temperatures, pressure spikes in cooling, or increased oil consumption if the hose is a crankcase breather.
- Poor condition hoses in older vehicles—since these parts are often overlooked in maintenance, especially with older 996 models, they may be degraded and benefit from preventive replacement.
- Maintains correct system function: A properly functioning breather line ensures your engine’s ventilation/cooling systems are working as intended — preventing pressure buildup, vapour trapping or system inefficiencies.
- Prevents secondary damage: A failing hose might lead to undue pressure or vapour escaping in unwanted places, which can damage hoses, connectors, engine seals or other vulnerable parts.
- Helps reliability and longevity: Especially in older 996 models, replacing old, brittle, cracked hoses with fresh OEM-spec units avoids failures that can strand the vehicle or lead to more expensive repair.
- Peace of mind & maintenance value: Ensuring the ventilation path is intact supports the overall health of the engine and cooling system, which can matter for resale or restoration quality.
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Prices from: €44.30
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Engine coolant overflow hose.
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Click 'Zoom in' for large parts diagram.
Diagram ref no 28
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Click 'Zoom in' for large parts diagram.
Diagram ref no 28
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Code: 99110655101
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Coolant hose. Sold each.
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Click 'Zoom in' for large parts diagram.
Diagram ref no 4
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Click 'Zoom in' for large parts diagram.
Diagram ref no 4
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Front Coolant Hose - Connects Metal Distributor Tube to Crossover Pipe. Porsche 981 / 982 (718) / 991
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Code: 99110672
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Information
Front coolant hose - connects metal distributor tube to crossover pipe.
Fits:
Porsche 981 Boxster / S 2012-16
Porsche 981 Boxster Spyder 2016
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Porsche 718 (982) Boxster / S / GTS 2017>>
Porsche 718 (982) Boxster Spyder 2019>>
Porsche 718 (982) Cayman / S / GTS 2017>>
Porsche 718 (982) Cayman GT4 2019>>
Porsche 991.1 & 991.2 Carrera 2012-19
Porsche 991 Turbo / S / GT2 RS 2014-20
Porsche 991 GT3 / RS 2014-21
Click 'Zoom in' for large parts diagram.
Diagram ref no 27
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Click 'Zoom in' for large parts diagram.
Diagram ref no 27
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