Originally Posted by Archon
They're available at many parts stores on the Dorman "Help" cards.
Dorman "Help" PN 47065 They come in a pack with both elbows and the O-Rings.
I ended up having to special order them, nobody had them in stock, but I ordered a few sets since they are inexpensive enough to have extras.
Suggestion: while you have the Alternator bracket off, take a 10ga bore brush (Phosphor-Bronze, not steel) chuck it in an electric drill, and clean out the openings on the housing and manifold where the elbows plug in. The coolant tends to make a mess in the o-ring areas. A clean surface will give you a good seal on the first try.
And of course, if you haven't dumped the DexCool yet, now is the time to do so.