I don't know about TYC alternators, but the first new TYC power window regulator Rock shipped me for our '97 Accord coupe was bad from the package, while the second, which Rock shipped as a replacement with no questions asked lasted about a year.
So, I'd just say no to TYC parts.
A rebuild from NAPA or another parts source catering to the shop market might be okay, but if the thing is really hard to replace, then price out a new OEM unit.
The quality will remain long after the price is forgotten, as someone once said.