Where can I find a Mitsubishi HD1000 color wheel replacement part?

My beloved Mitsubishi HD1000 projector stated buzzing. I Googled it and took apart the projector to find the color wheel had broken. Now I'm struggling to find a replacement part. This thing is a workhorse and I would hate to throw it out because of one part. I've tried Googling the part but I have had no luck. I'm hoping the good people at iFixit can help out.