The tanks are the manifold like items at the top and bottom (or sides) of the radiator.
If the tanks are in good shape, and a new radiator is prohibitively expensive, a good shop and to a good job re-coring an old one.

If you run your fingers across the little fins, do they crumble?

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It is a truism that almost any sect, cult, or religion will legislate its creed into law if it acquires the political power to do so. Robert A. Heinlein


09 Jetta TDI
1985 300D