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- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- Porsche 968 3.0L 1992-94
- Porsche 968 Sport 3.0L 1994-95
- Porsche 968 CS 3.0L 1993-95
- Porsche 968 Turbo S 3.0L 1993-94
- Porsche 928S2 4.7L 1984-86
Vacuum Hose Distribution Y-Piece – 4mm Vacuum Line
Splitter
Sold each - used in various locations
High-quality vacuum hose distribution Y-piece designed for a wide range of Porsche models including 911, 964, 924S, 944, 968, and 928.
This Y-splitter allows a single vacuum source to be divided into two outlets, enabling efficient routing and connection of vacuum lines within the engine bay or HVAC system. It is specifically designed for vacuum hoses with a 4mm outer diameter, ensuring a secure and precise fit.
Fits:
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- Porsche 968 3.0L 1992-94
- Porsche 968 Sport 3.0L 1994-95
- Porsche 968 CS 3.0L 1993-95
- Porsche 968 Turbo S 3.0L 1993-94
- Porsche 928S2 4.7L 1984-86
Diagram ref no 4
Manufactured to OEM standards, this connector is ideal for maintaining or restoring vacuum system integrity across multiple Porsche applications.
Key Features
• Universal-style vacuum Y-piece connector
• Suitable for Porsche 911, 964, 924S, 944, 968, and 928
• Designed for 4mm outer diameter vacuum hoses
• Enables splitting of vacuum lines
• OEM-style fit and function
• Durable construction for long-term reliability
Function and Purpose
This Y-piece is a critical connector within the vacuum system.
It helps to:
• Split a single vacuum line into two outputs
• Maintain proper vacuum routing
• Ensure consistent vacuum pressure distribution
• Support engine and HVAC system operation
Why Replace Your Vacuum Connector
Over time, vacuum connectors can degrade due to heat and age.
Common issues include:
• Cracked or brittle plastic
• Vacuum leaks
• Poor hose connections
• Engine or HVAC system malfunctions
Replacing the Y-piece restores proper vacuum system function.
• Loose or unsecured temperature sensor
• Incorrect temperature readings
• HVAC system inconsistencies
• Broken or missing connector clips
Replacing the lock piece restores proper sensor stability and function.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92857372702
The product you are viewing cross references to these numbers
- Porsche 957 Cayenne S / GTS 4.8L 2007-10
- Porsche 957 Cayenne Turbo / Turbo S 4.8L 2007-10
- Porsche 958 Cayenne S V8 4.8L Petrol (400Hp) 2010-17
- Porsche 958 Cayenne GTS V8 4.8L Petrol (400Hp) 2010-17
- Porsche 958 Cayenne Turbo V8 4.8L Petrol (500Hp) 2010-17
- Porsche 958 Cayenne Turbo S V8 4.8L Petrol (550Hp) 2010-17
- Porsche 970.1 Panamera S V8 4.8L 2009-13
- Porsche 970.1 Panamera 4S V8 4.8L 2009-13
- Porsche 970.1 Panamera GTS V8 4.8L 2011-13
- Porsche 970.1 Panamera Turbo V8 4.8L 2009-13
- Porsche 970.1 Panamera Turbo S V8 4.8L 2009-13
- Porsche 970.2 Panamera GTS V8 4.8L 4WD (440Hp) 2014-16
- Porsche 970.2 Panamera Turbo V8 4.8L (520Hp) 2014-16
- Porsche 970.2 Panamera Turbo S V8 4.8L 2014-16
Fits:
Porsche 92A Cayenne (958) 4.8L Petrol 2011>>2018
Cars With Engine Codes:
4802
Porsche 9PA1 Cayenne (957) 4.8L 2007>>2010
Cars With Engine Codes:
4801
Porsche 970 Panamera MKI / MKII 4.8L 2010>>2016
Cars With Engine Codes:
4820 / 4840 / CXPA / CXRA / CXR
Diagram Ref No 10
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94811013600
The product you are viewing cross references to these numbers
- Porsche 958 Cayenne Turbo V8 4.8L Petrol (500Hp) 2010-17
- Porsche 958 Cayenne Turbo S V8 4.8L Petrol (550Hp) 2010-17
Inlet Manifold Breather Line for Fuel Tank
Restore the efficiency of your Porsche's evaporative
emissions system with this OE Match Inlet Manifold Fuel Tank Breather Line.Manufactured to original equipment
specifications, this high-quality replacement breather line ensures the safe
transfer of fuel vapours from the fuel tank's EVAP system to the inlet
manifold, where they are burned during normal engine operation.
Fits:
- Porsche 958 Cayenne Turbo V8 4.8L Petrol (500Hp) 2010-17
- Porsche 958 Cayenne Turbo S V8 4.8L Petrol (550Hp) 2010-17
Diagram ref no 4
The inlet manifold breather line is a vital component of the Porsche fuel vapour recovery system. It prevents harmful fuel vapours from escaping into the atmosphere while maintaining correct engine vacuum and emissions performance. A leaking or damaged breather line can cause vacuum leaks, engine management warning lights, rough running and fuel vapour odours.
Constructed from premium fuel-resistant and heat-resistant materials, this OE Match replacement delivers factory-quality fitment, dependable sealing and long-term durability, making it an ideal solution for routine maintenance or emissions system repairs.
What Does the Inlet Manifold Fuel Tank Breather Line Do?
The breather line connects the fuel tank evaporative emissions (EVAP) system to the inlet manifold, allowing fuel vapours collected within the charcoal canister to be safely drawn into the engine and burned during combustion.
Its functions include:
- Transporting fuel vapours from the EVAP system to the engine.
- Preventing fuel vapour emissions from escaping into the atmosphere.
- Maintaining correct intake vacuum.
- Supporting efficient engine performance.
- Helping reduce exhaust emissions.
- Assisting compliance with modern emissions regulations.
A properly functioning breather line is essential for maintaining both engine efficiency and environmental performance.
Why Does the Breather Line Fail?
The breather line is constantly exposed to engine heat, vacuum pressure and fuel vapours, which can eventually cause deterioration.
Common causes of failure include:
- Heat-related ageing.
- Hardening or cracking of the hose.
- Fuel vapour degradation.
- Vacuum leaks.
- Damaged hose connectors.
- Engine movement stressing the pipework.
- Wear during servicing or engine repairs.
Replacing worn breather lines helps maintain the integrity of the EVAP system and prevents unwanted air entering the intake system.
Symptoms of a Failing Breather Line
Typical warning signs include:
- Engine management warning light.
- EVAP system fault codes.
- Fuel smell around the engine or vehicle.
- Rough or unstable idle.
- Vacuum leak or hissing noises.
- Poor fuel economy.
- Reduced engine performance.
- Visible cracking or deterioration of the hose.
Replacing the breather line promptly can often eliminate emissions-related faults and restore smooth engine operation.
When Should the Breather Line Be Replaced?
Replacement is recommended when:
- The hose becomes brittle or cracked.
- Vacuum leaks are detected.
- Fuel vapour leaks are present.
- EVAP fault codes are diagnosed.
- The inlet manifold is removed during servicing.
- Carrying out preventative maintenance on higher mileage vehicles.
Replacing ageing breather hoses helps maintain reliable emissions system performance and prevents future vacuum leaks.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94811002063
The product you are viewing cross references to these numbers
- Porsche 958 Cayenne Turbo V8 4.8L Petrol (500Hp) 2010-17
- Porsche 958 Cayenne Turbo S V8 4.8L Petrol (550Hp) 2010-17
Inlet Manifold Breather Line for Fuel Tank
Maintain the efficiency and reliability of your Porsche's evaporative emissions system with this Inlet Manifold Fuel Tank Breather Line. Manufactured to Porsche's exact original equipment standards, this factory-original breather line provides the precise fit, durability and performance required to safely transfer fuel vapours from the fuel tank EVAP system to the engine's inlet manifold.
Fits:
- Porsche 958 Cayenne Turbo V8 4.8L Petrol (500Hp) 2010-17
- Porsche 958 Cayenne Turbo S V8 4.8L Petrol (550Hp) 2010-17
Diagram ref no 4
The fuel tank breather line is an essential part of the evaporative emissions (EVAP) system. Instead of allowing fuel vapours to escape into the atmosphere, the system routes them to the inlet manifold, where they are burned during normal combustion. This improves emissions performance, supports engine efficiency and helps maintain the correct intake vacuum.
Over time, breather lines can become brittle, crack or develop leaks due to prolonged exposure to heat, fuel vapours and engine movement. Replacing a damaged breather hose with a Genuine Porsche component restores factory performance while ensuring maximum reliability and long service life.
What Does the Inlet Manifold Fuel Tank Breather Line Do?
The breather line connects the fuel tank evaporative emissions (EVAP) system to the inlet manifold, allowing fuel vapours collected within the charcoal canister to be safely drawn into the engine and burned during combustion.
Its functions include:
- Transporting fuel vapours from the EVAP system to the engine.
- Preventing fuel vapour emissions from escaping into the atmosphere.
- Maintaining correct intake vacuum.
- Supporting efficient engine performance.
- Helping reduce exhaust emissions.
- Assisting compliance with modern emissions regulations.
A properly functioning breather line is essential for maintaining both engine efficiency and environmental performance.
Why Does the Breather Line Fail?
The breather line is constantly exposed to engine heat, vacuum pressure and fuel vapours, which can eventually cause deterioration.
Common causes of failure include:
- Heat-related ageing.
- Hardening or cracking of the hose.
- Fuel vapour degradation.
- Vacuum leaks.
- Damaged hose connectors.
- Engine movement stressing the pipework.
- Wear during servicing or engine repairs.
Replacing worn breather lines helps maintain the integrity of the EVAP system and prevents unwanted air entering the intake system.
Symptoms of a Failing Breather Line
Typical warning signs include:
- Engine management warning light.
- EVAP system fault codes.
- Fuel smell around the engine or vehicle.
- Rough or unstable idle.
- Vacuum leak or hissing noises.
- Poor fuel economy.
- Reduced engine performance.
- Visible cracking or deterioration of the hose.
Replacing the breather line promptly can often eliminate emissions-related faults and restore smooth engine operation.
When Should the Breather Line Be Replaced?
Replacement is recommended when:
- The hose becomes brittle or cracked.
- Vacuum leaks are detected.
- Fuel vapour leaks are present.
- EVAP fault codes are diagnosed.
- The inlet manifold is removed during servicing.
- Carrying out preventative maintenance on higher mileage vehicles.
Replacing ageing breather hoses helps maintain reliable emissions system performance and prevents future vacuum leaks.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94811002063
The product you are viewing cross references to these numbers