Windshield Washer Pump Reservoir Grommet RTC3959 is used to secure the washer pump to the washer fluid reservoir, providing a tight seal and stable mounting point. This rubber grommet helps prevent washer fluid leaks while isolating vibration from the pump during operation.

Over time, the original grommet can harden, crack, or shrink, leading to leaks or a loose pump fitment. Replacing the grommet restores proper sealing and ensures the washer pump remains firmly seated in the reservoir.

Ideal for washer system repairs, pump replacement, or preventative maintenance on classic Land Rover models.

Vehicle Fitment

• Defender 90 (1987–2006)

• Defender 110 (1987–2006)

• Discovery I (1989–1998)

• Range Rover Classic (1986–1994)

Supersession Part Numbers

No supersessions found.

FAQ

What does this grommet do?
It seals and secures the washer pump where it inserts into the washer reservoir.

Should this grommet be replaced when installing a new washer pump?
Yes. Replacing the grommet helps ensure a leak-free installation and proper pump retention.

Is this sold individually?
Yes. This listing includes one (1) washer pump reservoir grommet.

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Part Number: RTC3959

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