Orbital will be using them for ISS resupply missions!
Once they get one off the pad.
There is a reason for why reusing old engines meant for a rocket that never survived launch back when UFOs were fresh is not the best idea.
Evidence says no, at least for the refurbished ones. Also, Preparing of NK-33 engine mass production says "NK-33 acquired the outlook for mass production restoration due to those successful launches.". This does not necessarily mean that russians re-use old engines, just that up to Feb. 2014 they didn't mass-produce them.
Additionally, the failure modes seems to have nothing to do first first-stage engines.
abnormal operation of the third stage engine booster
Not the NK-33. These are RD-0212 made by "Kosberg". Do they have any in store back from the glasnost era? I don't know...
On second thoughts, these guys most likely source a good percentage of the parts from the eastern provinces of Ukraine, which are now being freedomized by the neocon cabal...