Got a picture?
If it is the same one that shows up when you go to FInish Line, I think Wagner makes the same unit. They are bolted next to the bellhousing using one the bolt that holds the housing to the engine.
You may be able to find this one at Lone Star. I think they sell the wagner unit. If not they may be able to give you the number of the wagner unit. Then you can goto a NAPA store and check it out.
Just a thought.