This seal goes on the neck of petrol tanks as a protection against water intrusion causing rust and also to make the hole look neater so replace them when they crack or shrink through heat. This is the original fatter type as used pre 1997.
For later cars see
WGG100010.
We advise fitting the [link]14A7057GENUINE[/link}for extra longevity, quality, looks and fit, where we seem to be the only company offering a quality part from our own tooling made in the UK.