Here are some of bits I did, the hoses themselves seemed ok but everything plastic was starting to get brittle.

03H121145A + 03H121041B (guess the one piece I did not touch, and now is leaking)

03H121117B - There are metal ones, but the one I got was machined poorly, ymmv
03H121121D
03H121113E
WHT005190 - This is the big o-ring that leaks at the block.
03H121133

If you would like a full list, let me know. I will put a spreadsheet together.