Windshield washer nozzle cartridge?

[spender]

I am the proud owner of a new 2004 Sienna XLE. Everything on it is awesome, except that it would appear that I am missing a nozzle "insert" for one of my front windshield washer sprayers - the solution comes out in a big, messy stream. I've looked on 1sttoyotaparts, but can't seem to find the part I'm referring to, I must not be searching for the right thing. If someone can help me find this part number, I would be grateful.

Also, from what I can see, the nozzle piece appears to be an insert into the nozzle "head" - is this indeed the case? I.E., can I buy the nozzle insert and then just snap it in, or is it more involved than that?

Thanks!!