I have a leak coming from the VTEC spool valve assembly on my 2011 Acura TL SH-AWD and will be replacing the entire assembly in the next week or so. Other than the assembly itself, are there any other parts that I should replace along with it? For example, are there any other seals or o-rings behind the assembly that should be replaced?

 

Apparently there are two gaskets and an o-ring to replace. I found a really good video online detailing how to do so: