Tim, your parts list link says the hose is 3696551 which is, in fact, BH13841. It is the official replacement for the GM part.
The only difference is that it is now 18 1/4" long.
By using your link, I was able to confirm that the wheel cylinder 5455478/9 is WC14493/4. So now both WC and hose confirmed.
Thank you for posting that!
