Filler neck cap water reservoir. Porsche 955/957/958 Cayenne / 95B Macan  ❭  PAA955455

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Related, superseded, cross reference or alternative numbers for comparison.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