Wiper arm Genuine Porsche part 958955408B

Water reservoir filler neck cap
The Porsche Genuine OE Reservoir Cap (Part No. PAA955455) is an original factory sealing cap for the windscreen washer fluid reservoir. Designed and manufactured by Porsche, this component ensures a secure seal on the washer fluid filler neck, protecting the system from contamination and fluid loss. Also commonly referred to as a washer fluid cap, sealing cap, or end cap, it is a small but essential part of the vehicle’s washer system.

Fits:
Porsche 955 Cayenne 2003 - 2006
Porsche 957 Cayenne 2007 - 2010
Porsche 958 Cayenne 2011 - 2018

Diagram ref no 3

The reservoir cap seals the washer fluid tank filler neck, preventing dirt, debris, and moisture from entering the system while also stopping fluid from splashing or evaporating.

By maintaining a closed system, it ensures reliable operation of the windscreen washer jets, helping maintain clear visibility in all driving conditions.

Functions & Technical Role
• Sealing function: Prevents washer fluid leakage and contamination
• System protection: Keeps debris and moisture out of the washer reservoir
• Fluid retention: Minimises evaporation and spillage
• Easy access: Allows quick opening for refilling washer fluid
• OEM precision: Manufactured to Porsche specifications for exact fit and durability

Fitment / Position on car
•  Fitting position: Front – washer fluid system
•  Location: On top of the windscreen washer reservoir filler neck
•  System: Windscreen washer / cleaning system

Cross Reference / Superseded Numbers
This part cross-references and replaces several related OE numbers: 1K0955455, 3Q0955455, 95552860700, 95552860701, 958955455

Although small, a missing or damaged cap can lead to:
•  Washer fluid leaks or evaporation
•  Contamination of the washer system
•  Reduced washer performance
•  Potential blockage of washer jets

Replacing with a genuine Porsche OE cap ensures proper sealing, long-term durability, and reliable operation of the washer system.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

PAA955455

The product you are viewing cross references to these numbers

Wiper arm FRONT PASSENGER'S SIDE, for RHD cars



Fits:
Porsche 955 Cayenne MKI 2003-2006
Porsche 957 Cayenne MKII 2007-10

Note: This is later type shape of wiper arm. If you have MKI 955 or early MKII 957 it may require new set of wiper blades to fit.

Click 'zoom in' for large parts diagram.
Diagram ref no 20 (passenger's side - part no 95562802622)

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

958955407A

The product you are viewing cross references to these numbers

Filler neck cap for windscreen washer reservoir.
The Porsche Genuine OE Reservoir Cap (Part No. PAA955455) is an original factory sealing cap for the windscreen washer fluid reservoir. Designed and manufactured by Porsche, this component ensures a secure seal on the washer fluid filler neck, protecting the system from contamination and fluid loss. Also commonly referred to as a washer fluid cap, sealing cap, or end cap, it is a small but essential part of the vehicle’s washer system.

Fits:
Porsche 95B.1 Macan 2014 - 2018
Porsche 95B.2 Macan 2019 - 2021
Porsche 95B.3 Macan 2022>>

Diagram ref no 3

The reservoir cap seals the washer fluid tank filler neck, preventing dirt, debris, and moisture from entering the system while also stopping fluid from splashing or evaporating.

By maintaining a closed system, it ensures reliable operation of the windscreen washer jets, helping maintain clear visibility in all driving conditions.

Functions & Technical Role
• Sealing function: Prevents washer fluid leakage and contamination
• System protection: Keeps debris and moisture out of the washer reservoir
• Fluid retention: Minimises evaporation and spillage
• Easy access: Allows quick opening for refilling washer fluid
• OEM precision: Manufactured to Porsche specifications for exact fit and durability

Fitment / Position on car
•  Fitting position: Front – washer fluid system
•  Location: On top of the windscreen washer reservoir filler neck
•  System: Windscreen washer / cleaning system

Cross Reference / Superseded Numbers
This part cross-references and replaces several related OE numbers: 1K0955455, 3Q0955455, 95552860700, 95552860701, 958955455

Although small, a missing or damaged cap can lead to:
•  Washer fluid leaks or evaporation
•  Contamination of the washer system
•  Reduced washer performance
•  Potential blockage of washer jets

Replacing with a genuine Porsche OE cap ensures proper sealing, long-term durability, and reliable operation of the washer system.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

PAA955455

The product you are viewing cross references to these numbers

Filler neck cap water reservoir
An OE Match filler neck cap for the water (washer fluid) reservoir, designed to securely seal the fluid tank and protect the system from contamination in Porsche Cayenne and Macan models.

Fits:
Porsche 955 Cayenne 2003 - 2006
Porsche 957 Cayenne 2007 - 2010
Porsche 958 Cayenne 2011 - 2018
Porsche 95B.1 Macan 2014 - 2018
Porsche 95B.2 Macan 2019 - 2021
Porsche 95B.3 Macan 2022>>

Diagram ref no 3

This OE Match Filler Neck Cap – Water Reservoir is a high-quality replacement component designed to replicate original Porsche specifications for fit, durability, and sealing performance. Installed on the washer fluid reservoir filler neck, this cap ensures the system remains properly sealed and protected.

This cap seals the washer fluid reservoir, preventing fluid loss and protecting the system from contamination, ensuring reliable operation of the windscreen washer system.

Function
•   Provides a secure seal for the washer fluid reservoir
•   Prevents fluid leakage and evaporation
•   Protects against dirt, debris, and contamination
•   Maintains proper washer system pressure and function
•   Ensures reliable windscreen cleaning performance

Cross References:
PAA955455
95552860700 / 95552860701
958955455
1K0955455 / 3Q0955455

Why Replacement Matters
A damaged or missing reservoir cap can lead to fluid contamination, leakage, and reduced washer system performance. Dirt entering the system can clog washer jets or damage the pump over time. Replacing the cap ensures the system remains clean, sealed, and fully functional.

When to replace
•   Cap is missing or loose
•   Visible cracks or damage to plastic
•   Washer fluid leaking or evaporating
•   Contamination inside the reservoir
•   During routine maintenance or inspection

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

PAA955455

The product you are viewing cross references to these numbers