Just FYI for anyone finding this later.
I found an even newer part rev #: 5085546AG
I also found better results searching without the leading 0, some places list it with the 0 and some without.
I found eBay was the best deals (auto parts dealers selling on there), similar prices but often free shipping which saves around $8 or more.
Hopefully once I get it fixed I can get the air out of the lines and make it work good again. Makes horrible noises right now and PS stutters. As soon as it started acting up we topped off the fluid, then realized it was leaking pretty good. Drive it the very short distance home and parked it.
I also had come across another post on this forum with "cold weather" part numbers but they were harder to find and much more expensive. The OE one has worked for many years here, very rare to be below -10F
http://www.dodgejourneyforum.com/topic/6183-power-steering-fluid/
68143978AA LHD Return Hose Assembly (Replaces 05085546AB)