you can get a new one from here, if you do use a second hand one make sure it's not started to corrode in the same place as yours.
https://www.ebay.co.uk/itm/263868653649
I had two back in 2020 but sold them, well at least one from memory.
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I also think there are two types i could be wrong.
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It's a double job with the engine in place, but not easy by any means, due to the fixings at the back of the engine.
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All that above behind the engine, and this fixing at the side of the engine.
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I have a feeling you would need to remove the metal intercooler pipe as well.
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The photos will only show you the route i am afraid, not how to do the job with the engine in the car.
https://rimmerbros.com/Item--i-GRID001722