Yup, I have a Cummins 4BT in Moonshine (my 60) outlined in the signature below. There's no such thing AFAIK as a Cummins 3BT. If you're referring to the Toyota 3B or Toyota 13B-T, or any Toy diesel for that matter, the reason why I went with Cummins is more or less three fold:
1. Parts...