Welcome to the forum! First off if you haven't you should read the noob guide:
viewtopic.php?f=5&t=54207Second, many people here have purchased from:
http://www.moparpartsamerica.com with great success.
Third, the factory service manual and parts fiches can be downloaded in PDF form here:
viewtopic.php?f=5&t=24600In the future if you ever need to find a random part like the washer pump you can search the PDF for keywords, or dig through the directory to find it.
In the 05 parts fiche I searched for "windshield washer" the first result was listed as "PUMP, windshield washer" with a Jeep part number of 05161319AA
However searching two online parts sites with that part number did not return any results.
So I checked the 06 parts fiche and got the part number:
05179153AA
Which also did not return any results. This is sometimes caused by a new part number superseding the old, or the online catalogues just not listed every part known to man.
The part number you posted off of the part sounds like a mercedes part number, so now armed with three different part number you ought to be able to order it from somewhere, generally if you call up one of the online retailers like moparpartsamerica and give them the jeep part number they should be able to look it up despite not listing it in the online database.
Hope that helps, and welcome to the site!
_________________
http://www.Colorado4Wheel.com
"Its not about what you can
DO with your Jeep, its about where you can
GO with your Jeep."
Knowledgeable - But Caustic