I fitted this to my 2004 2.1l Sprinter, after driving with the battery light on on the dash from Cambridge to Nottingham at dusk. I've no idea who makes this alternator, but it was a direct replacement for the one that had given up the ghost, and when I turned the key, the battery charging light went out. It was giving out 14.6 v and charged up the battery as it should. I've given it 5 stars, even though I've only driven it for a week. Should be good for another 10 years, by which point diesel motors will be dinosaurs