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Porsche // Macan (95B) MK1 (2014-2018) // Any
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- 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 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
The Genuine Porsche Stopper / Sealing Cap (Part Number: 99906301541) is an original equipment sealing component used in the windscreen washer reservoir assembly of selected classic Porsche models.
Fits:
- 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 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
Diagram Ref No 25
The sealing cap is designed to close a designated opening in the washer fluid reservoir, helping maintain the integrity of the container and preventing unwanted fluid escape from the sealed opening.
This component is associated with the windscreen washer systems fitted to selected Porsche 924S, 944 and 911 (964) models.
Porsche reference 99906301541 supersedes the earlier reference 99906301540.
Although relatively small, the stopper plays an important role in maintaining the condition and functionality of the washer reservoir assembly.
The windscreen washer system stores cleaning fluid in a reservoir and delivers it to the windscreen through an electrically operated pump, connecting hoses and washer jets.
The stopper closes the reservoir opening for which it is specified, helping prevent washer fluid from leaking through that location.
Over time, the original sealing cap may become worn, hardened, cracked, distorted or damaged during removal and servicing.
A damaged or missing stopper can allow washer fluid to escape, potentially causing a gradual reduction in the reservoir's fluid level.
Depending on the location of the opening, leakage may become particularly noticeable after the reservoir is filled or while the vehicle is moving.
Replacing a defective stopper with a Genuine Porsche component helps restore the intended reservoir seal, reduce unwanted fluid loss and maintain the original washer system arrangement.
Ideal for washer reservoir repairs, windscreen washer system maintenance and classic Porsche restoration, this Genuine Porsche Sealing Cap provides an original equipment replacement for compatible applications.
What This Product Does:
The stopper is a sealing component fitted to a designated opening in the windscreen washer fluid reservoir.
Its primary function is to close that opening and help keep washer fluid contained within the reservoir.
The washer system relies on an adequate supply of cleaning fluid to remove dirt, road spray and other contamination from the windscreen.
If an unused or designated reservoir opening is not properly sealed, fluid may leak from the container instead of remaining available for the washer pump.
The stopper helps maintain the reservoir's intended configuration without requiring replacement of the entire container when only the sealing component is defective.
Its main functions include:
- Sealing the reservoir opening: Closes the specific opening for which the stopper is designed.
- Preventing washer fluid leakage: Helps keep cleaning fluid inside the reservoir.
- Maintaining fluid levels: Reduces unnecessary fluid loss through the sealed opening.
- Supporting washer system reliability: Helps ensure washer fluid remains available when required.
- Providing secure closure: Maintains the intended fit within the reservoir opening.
- Protecting the reservoir interior: Helps limit the entry of unwanted dirt or contamination through the closed opening.
- Maintaining original reservoir configuration: Preserves Porsche's specified washer fluid container arrangement.
- Supporting component servicing: Allows a damaged seal to be replaced separately where appropriate.
- Reducing unnecessary fluid consumption: Helps prevent repeated refilling caused by leakage at the stopper.
- Supporting vehicle maintenance: Helps keep the windscreen washing system in serviceable condition.
Symptoms Of Wear Or Failure:
The washer reservoir sealing cap does not contain moving parts, but it can deteriorate through age, chemical exposure, temperature changes and repeated removal.
A damaged stopper may no longer fit securely or provide an effective seal.
Common symptoms and signs include:
- Washer fluid leakage: Fluid may escape from the reservoir opening around the stopper.
- Repeated loss of washer fluid: The reservoir level may gradually fall without the washer system being operated.
- Dampness around the reservoir: Moisture or washer fluid residue may appear near the sealed opening.
- Visible cracks: Ageing or physical damage may cause the stopper to split.
- Hardened material: Deterioration may reduce the stopper's ability to seal against the reservoir.
- Distorted shape: A deformed stopper may no longer fit correctly.
- Loose fitment: The component may become insecure within the opening.
- Missing stopper: An uncovered opening may permit fluid loss or contamination.
- Damaged sealing edge: Cuts or tears may prevent a consistent seal.
- Fluid leakage after refilling: The reservoir may leak when filled above the height of the affected opening.
- Contamination around the opening: Dirt or debris may accumulate where the stopper is damaged or missing.
- Repeated need to top up the washer reservoir: An unresolved leak may cause the fluid level to decrease more quickly than expected.
- Poor sealing after previous repairs: Incorrect installation or use of the wrong replacement component may cause persistent leakage.
- Visible ageing: Surface deterioration may indicate that the original stopper should be inspected.
Why Replacement Matters:
Replacing a defective washer reservoir stopper helps maintain the correct sealing arrangement of the windscreen washer system.
A cracked, loose or missing sealing cap may allow washer fluid to escape, resulting in unnecessary fluid loss and reduced washer system availability.
Continued leakage can also cause fluid to accumulate around surrounding components and may leave the windscreen washer reservoir empty when cleaning fluid is needed.
Installing a Genuine Porsche replacement Stopper / Sealing Cap helps to:
- Restore the reservoir seal: Replace a defective component that no longer closes the opening properly.
- Prevent unwanted fluid loss: Help stop washer fluid escaping from the affected location.
- Maintain washer fluid availability: Keep more cleaning fluid available for windscreen washing.
- Reduce repeated refilling: Address unnecessary fluid consumption caused by a confirmed stopper leak.
- Maintain correct component fitment: Restore the intended original equipment sealing arrangement.
- Replace damaged sealing material: Renew a cracked, hardened or distorted stopper.
- Prevent contamination: Help protect the reservoir from dirt entering through an open or damaged sealing point.
- Support windscreen visibility: Maintain the washer fluid supply required for normal screen cleaning.
- Avoid unnecessary reservoir replacement: Repair the sealing point where the reservoir itself remains serviceable.
- Support classic Porsche restoration: Restore the original washer system using a Genuine Porsche component.
- Maintain factory specifications: Use the correct Porsche part reference rather than an unverified substitute.
- Support long-term system reliability: Replace deteriorated sealing components before further fluid loss occurs.
Replacement is recommended when inspection confirms that the stopper is missing, damaged, distorted or leaking.
If the reservoir opening itself is cracked or damaged, replacing the stopper alone may not resolve the problem.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99906301541
The product you are viewing cross references to these numbers
- Porsche 955 Cayenne 3.2L V6 2003-06
- Porsche 955 Cayenne S 4.5L V8 2003-06
- Porsche 955 Cayenne Turbo 4.5L 2003-06
- Porsche 955 Cayenne Turbo S 4.5L 2006>>
- Porsche 957 Cayenne 3.0L Diesel 2007-10
- Porsche 957 Cayenne 3.6L 2007-10
- Porsche 957 Cayenne S / GTS 4.8L 2007-10
- Porsche 957 Cayenne Turbo / Turbo S 4.8L 2007-10
- Porsche 958 Cayenne V6 3.6L Petrol (300Hp) 2010-17
- Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2010-17
- Porsche 958 Cayenne S V6 3.0L Hybrid (380Hp) 2010-17
- Porsche 958 Cayenne S V8 4.8L Petrol (400Hp) 2010-17
- Porsche 958 Cayenne S V8 4.2L Diesel (382Hp) 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 95B.1 Macan Petrol 2.0L (237Bhp) 2014-18
- Porsche 95B.1 Macan S Petrol 3.0L V6 (340Bhp) 2014-18
- Porsche 95B.1 Macan S Diesel 3.0L V6 (258Bhp) 2014-18
- Porsche 95B.1 Macan Turbo 3.6L V6 (400Bhp) 2014-18
Fits:
Porsche 955 Cayenne 2003-06
Porsche 957 Cayenne 2007-11
Porsche 958 Cayenne 2011>>
Porsche Macan 2014>>
Click 'Zoom in' for large parts diagram.
Diagram ref no 10
Related reference numbers
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95562817201
The product you are viewing cross references to these numbers
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- 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
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII GT3 / GT3 RS 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
- Porsche 991.1 Carrera C2 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Carrera C4 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C4S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014-16
- Porsche 991.1 GT3 3.8L (475 Bhp) 2014-16
- Porsche 991.1 GT3 RS 4.0L (500 Bhp) 2015-16
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S / GTS 3.4L 981 2013-16
- Porsche Cayman GT4 3.8L 2015-16
- Porsche 955 Cayenne 3.2L V6 2003-06
- Porsche 955 Cayenne S 4.5L V8 2003-06
- Porsche 955 Cayenne Turbo 4.5L 2003-06
- Porsche 955 Cayenne Turbo S 4.5L 2006>>
- Porsche 957 Cayenne 3.0L Diesel 2007-10
- Porsche 957 Cayenne 3.6L 2007-10
- Porsche 957 Cayenne S / GTS 4.8L 2007-10
- Porsche 957 Cayenne Turbo / Turbo S 4.8L 2007-10
- Porsche 958 Cayenne V6 3.6L Petrol (300Hp) 2010-17
- Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2010-17
- Porsche 958 Cayenne S V6 3.0L Hybrid (380Hp) 2010-17
- Porsche 958 Cayenne S V8 4.8L Petrol (400Hp) 2010-17
- Porsche 958 Cayenne S V8 4.2L Diesel (382Hp) 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 V6 3.6L 2WD 2009-13
- Porsche 970.1 Panamera 4 V6 3.6L 4WD 2009-13
- 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 970.1 Panamera Diesel V6 3.0L 2011-13
- Porsche 970.1 Panamera S Hybrid V6 3.0L 2011-13
- Porsche 970.2 Panamera V6 3.6L 2WD (310Hp) 2014-16
- Porsche 970.2 Panamera 4 V6 3.6L 4WD (310Hp) 2014-16
- Porsche 970.2 Panamera S V6 Turbo 3.0L 2WD (420Hp) 2014-16
- Porsche 970.2 Panamera S V6 Turbo 3.0L 2WD Executive 2014-16
- Porsche 970.2 Panamera 4S V6 Turbo 3.0L 4WD (420Hp) 2014-16
- Porsche 970.2 Panamera 4S V6 Turbo 3.0L 4WD Executive 2014-16
- 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 V8 Executive 2014-16
- Porsche 970.2 Panamera Turbo S V8 4.8L 2014-16
- Porsche 970.2 Panamera Diesel V6 3.0L (250Hp) 2014-16
- Porsche 970.2 Panamera S E-Hybrid V6 3.0L (416Hp) 2014-16
- Porsche 95B.1 Macan Petrol 2.0L (237Bhp) 2014-18
- Porsche 95B.1 Macan S Petrol 3.0L V6 (340Bhp) 2014-18
- Porsche 95B.1 Macan S Diesel 3.0L V6 (258Bhp) 2014-18
- Porsche 95B.1 Macan Turbo 3.6L V6 (400Bhp) 2014-18
Fits:
Porsche 955 Cayenne 2003-06
Porsche 957 Cayenne 2007-10
Porsche 958 Cayenne 2011>>
Porsche Macan 2014>>
Porsche 970 Panamera 2010>>
Porsche 987 Boxster 2005>>
Porsche 981 Boxster 2012>>
Porsche 987C Cayman 2005>>
Porsche 981 Cayman 2014>>
Porsche 997 2005>>
Porsche 991 2012>>
Click 'Zoom in' for large parts diagram.
Diagram ref no 11
Related reference numbers
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95562810500
The product you are viewing cross references to these numbers
- Porsche 970.2 Panamera V6 3.6L 2WD (310Hp) 2014-16
- Porsche 970.2 Panamera 4 V6 3.6L 4WD (310Hp) 2014-16
- Porsche 970.2 Panamera S V6 Turbo 3.0L 2WD (420Hp) 2014-16
- Porsche 970.2 Panamera S V6 Turbo 3.0L 2WD Executive 2014-16
- Porsche 970.2 Panamera 4S V6 Turbo 3.0L 4WD (420Hp) 2014-16
- Porsche 970.2 Panamera 4S V6 Turbo 3.0L 4WD Executive 2014-16
- 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 V8 Executive 2014-16
- Porsche 970.2 Panamera Turbo S V8 4.8L 2014-16
- Porsche 970.2 Panamera Diesel V6 3.0L (250Hp) 2014-16
- Porsche 970.2 Panamera S E-Hybrid V6 3.0L (416Hp) 2014-16
- Porsche 95B.1 Macan Petrol 2.0L (237Bhp) 2014-18
- Porsche 95B.1 Macan S Petrol 3.0L V6 (340Bhp) 2014-18
- Porsche 95B.1 Macan S Diesel 3.0L V6 (258Bhp) 2014-18
- Porsche 95B.1 Macan GTS Petrol 3.0L V6 (360Bhp) 2014-18
- Porsche 95B.1 Macan Turbo 3.6L V6 (400Bhp) 2014-18
Fits:
Porsche 970 Panamera 2010-16
For cars with Headlamp washer system (I288)
Porsche 95B Macan 2014-18
For cars with Headlamp cleaning system (I8X1))
Click 'Zoom in' for large parts diagram.
Diagram ref no 6 (Panamera)
Diagram ref no 8 (Macan)
Related reference numbers
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1J0955665E
The product you are viewing cross references to these numbers
- Porsche 95B.1 Macan Petrol 2.0L (237Bhp) 2014-18
- Porsche 95B.1 Macan S Petrol 3.0L V6 (340Bhp) 2014-18
- Porsche 95B.1 Macan S Diesel 3.0L V6 (258Bhp) 2014-18
- Porsche 95B.1 Macan GTS Petrol 3.0L V6 (360Bhp) 2014-18
- Porsche 95B.1 Macan Turbo 3.6L V6 (400Bhp) 2014-18
Fits:
Porsche 95B Macan 2014-18
Click 'Zoom in' for large parts diagram.
Diagram ref no 1
Related reference numbers
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95B955451
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