Water tank reservoir cap and hose. Porsche 911 63-68 / 356 B/C

Water tank reservoir cap & hose.
Direct-fit washer bottle cap with integrated hose for classic Porsche 356, 911 and 912 models. Restores proper sealing and fluid delivery, preventing leaks and contamination in the windshield.

Fits:
Porsche 356 B/C 1.6 01/1959 - 12/1965
Porsche 911 2.0 01/1963 - 07/1968
Porsche 912 1.6 01/1965 - 07/1968

Diagram ref no 3

• Position on Vehicle: Mounted at the top of the washer fluid reservoir (windshield washer tank) in the front compartment or accessory bay; includes the attached hose for correct routing and connection.

• Applications: Ideal for use when the original cap is cracked, missing, leaking washer fluid, or when restoring the original appearance and function of the windshield washer system on a classic Porsche.

A properly functioning washer system cap ensures the washer fluid tank remains sealed, preventing contamination or evaporation and allowing the system to maintain correct pressure and fluid delivery when you need to clean your windshield. A cracked or missing cap can allow debris or moisture into the system, cause fluid leakage, or reduce washer effectiveness - critical during poor weather conditions or for safe driving. Replacing cap restores function, prevents failures and preserves the original system integrity.

When and why to replace:
• Washer fluid leaks from the reservoir cap or hose connection.
• Cap shows visible cracks, warping, or the hose connection is loose or detached.
• During restoration or servicing of the washer system when the original cap is removed.
• If the washer tank or hose has been replaced and original cap is missing or the seal has aged.
• For collectors looking to maintain correct original component appearance and function.

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Related, superseded, cross reference or alternative numbers for comparison.

90162872320

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