Thanks a bunch folks, I ended up ordering the assembly.

Appreciate the kindness of your time!

Thomas.

No, just the one number in the photo (which doesn't really lead to anything useful in a search).

Thanks for taking the time to reply, much appreciated!

Cleverly, while replacing rotted hoses in our 2005 XC90 2.5T, I snapped the end off what I presume is a check valve on one of the 9.5mm manifold vacuum hoses(?) https://lh3.googleusercontent.com/tuIVY9tTV9v-43DJlXjf_3FX12eQZp6_ffez_tLmNIDWN3yAmQvITMYNFtkjw4cwg1lfJqdOQhanm5gmizx5iRdaKJX6JaQwpODtI_dg2...