You mean Bell factory parts? Not sure if your faith is well earned. The factory parts have been known to break down and fly apart - hence the 2 year 1200hr limit.
These ones are 'Factory Parts' and they are presumably new.
It's a simple device. I wonder what sort of stress tests were required to certify these after market ones? Given the failures of the original part, I hope the tests were far more severe than anything likely to be encountered in actual use.