Here is a quick rundown on the lighthouse motor I bought to replace one I had burned up in my Fein Turbo III
Ward said he wasn't sure the motor would work but we chose one that looked like the fein motor. It was $69 shipped and I got it in 3 days. The motor is about 1/2 inch shorter than the original but that didn't create a problem. It works as well and maybe better than the original. It isn't any louder.
I would recommend these motors to anyone needing a new motor for a Fein. With free shipping and no sales tax Lighthouse is about half price of grainger.