You will need the ring to the cooler tube as well, and the one that looks kind of like an 8. Unless I am mistaken.
I looks like your pipe has the 4 o-rings.
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Johannes
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Audi S8 -99, Pearlescent, Alcantara/silk napa leather, Burr walnut insert, Alcantara roof lining upper pack
A8 32V engine
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Jeep Grand Cherokee -98
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