Starter woes

So y'all got me fired up. When I got home I ran out to the garage before dinner and bench tested the new PowerMaster. It's DOA. The Bendix pops out but no spin at all. Lesson learned, bench test before install. Going to return it and use the old starter.
FYI I looked up the specs on that PM and it’s hardly any different than a magnum mini starter. I get mine for a 2001 dodge ram 2500 with a 5.9 and they work fantastic.