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Breather Hose. Porsche 996 / 997.1 1998-08 - 99610623053
99610623053
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 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
Information
Breather Hose.
Restore the engine ventilation routing on your Porsche 911 (996 / 997 series) with this genuine breather hose. This hose is located at the top of the oil cooler and connects the breather or ventilation circuit, ensuring proper air/oil vapour flow and system integrity.
Fits:
Symptoms Of Wear Or Failure:
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610623053
The product you are viewing cross references to these numbers
Restore the engine ventilation routing on your Porsche 911 (996 / 997 series) with this genuine breather hose. This hose is located at the top of the oil cooler and connects the breather or ventilation circuit, ensuring proper air/oil vapour flow and system integrity.
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 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
Diagram Ref No 30
What This Product Does:
- The breather hose is part of the engine’s ventilation or crankcase/air-oil management system. In this case, it's described as being located at the top of the oil-cooler, which may mean it connects the crankcase ventilation or engine breather output back into the intake or another system.
- Its main function: to provide a path for gases (blow-by, vapor, pressure) from the engine or oil-cooler area back into the intake system or safe discharge path.
- The hose must withstand engine heat, pressure/vacuum cycles, vibrations, and exposure to oil or vapour, and provide a leak-free connection.
- Proper functioning helps maintain correct crankcase pressure, prevents undue pressure build-up or vacuum, helps control emissions, keeps the oil cooler circuit operating correctly, and ensures the engine’s ventilation system does not allow unintended air or oil vapour to escape or enter in the wrong way.
Symptoms Of Wear Or Failure:
- Oil vapour or smell around the engine compartment, especially near the oil cooler area or hose routing, indicating leakage of crankcase gases.
- Visible cracks, splits, brittleness, or hose collapse — old hoses can harden, crack or collapse internally causing blockage or leakage.
- Unusual engine behaviour: e.g., increased oil consumption, engine smoking slightly, or unusual intake/vacuum behaviour — if ventilation is compromised.
- Check engine or emission warnings: A compromised breather hose may lead to induction of unmetered air or vapours, affecting engine management.
- Oil cooler area contamination: Because the hose is described as located at the top of the oil cooler, if oil or vapour-contaminated deposits are visible there, the hose may be failing.
- Maintains correct engine ventilation: A good breather hose ensures proper crankcase/ventilation flow, and prevents pressure build-up or vacuum conditions that can lead to leaks or part failures (seals, gaskets).
- Protects the oil-cooler circuit and engine components: Because this hose is located at the oil-cooler top, replacing it helps ensure the oil cooler and associated hoses remain uncontaminated by vapour or oil mist escaping via degraded hoses.
- Improves reliability: Since these hoses are subject to heat, pressure and ageing, replacing them proactively avoids sudden failure, which could leave the car stranded or cause engine issues.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610623053
99610623053
99610623052
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Price: £51.97
Arriving soon
Related products
Vehicle Group
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
Information
700mm long Cloth Covered Rubber Breather Hose. This hose runs from the oil reservoir tank to the rear of the engine. Fits all 2.7L and 3.0L naturally aspirated 911 models built between 1974 and 1983, as well as all 3.0L 911 Turbo models built between 1976 and 1977.
Fits:
Porsche 911 1965-83
This product supersedes Porsche's old part numbers:
- 90110739300
- 90110739400
- 90110739301
- 99923600850
Diagram Ref No 12
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PCG236008A
The product you are viewing cross references to these numbers
Fits:
Porsche 911 1965-83
This product supersedes Porsche's old part numbers:
- 90110739300
- 90110739400
- 90110739301
- 99923600850
Diagram Ref No 12
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PCG236008A
00004320516
90110739300
90110739400
90110739301
99923600850
PCG236008A
The product you are viewing cross references to these numbers
£25.00
Now £22.50
In stock
Vehicle Group
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
Information
Breather Hose. From oil tank to the air box (ridged box)
Fits:
Porsche 911 1965-83
Click picture for large parts diagram.
Diagram Ref No 37.
Fits:
Porsche 911 1965-83
Click picture for large parts diagram.
Diagram Ref No 37.
Price: £55.91
In stock
Vehicle Group
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
Information
Breather hose oil tank to crankcase bottom half.
Fits:
Porsche 911 1980-83
Diagram ref no 35B
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93010739409
The product you are viewing cross references to these numbers
Fits:
Porsche 911 1980-83
Diagram ref no 35B
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93010739409
93010739409
The product you are viewing cross references to these numbers
£15.95
Now £14.35
In stock