oh yes it did, the intake flange on the discharge side of the compressor says so! that turbo went on an old ass detroit "2 cycle" diesel that had a blower,that that snout bolted to the inlet of the blower (corn binder) lol, so it's IS from a detroit engine,but waaaaaaay too old to be a GT series turbo,more like a TV series or some shit...been too long.