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[Field Marshal Dr. Opti]

The new hoses are marked GM 12842477 and GM 12842478.

Getting back on topic, the new ones I fitted on my car have the above part numbers printed on them, so they are the correct ones

Phil, my understanding is that the new hoses fit the revised coolant tank and are not the same as the hoses used for the previous tank.

I still have the old tank........which is not leaking as of yet.

[Phil]

Phil, my understanding is that the new hoses fit the revised coolant tank and are not the same as the hoses used for the previous tank.

I still have the old tank........which is not leaking as of yet.

Fairly sure the pipes are the same.

Think I swapped the pipes over a couple of days before changing the expansion tank and there were no issues.

They are an odd pipe in as much that the old ones tapered where they were connected to a smaller ID think the new ones are a more uniform diameter