Needed: new circuit breaker for CMM1000 Type 4.

The breaker on my 2003 CMM1000 cuts off the motor after only a few minutes of mowing, even if I'm pushing the mower at snail's pace. The "local" Black and Decker store (an hour away) tells me that the circuit breaker is "obsolete", such that my only choice is to have them upgrade the mower to a later model. But I don't want them introducing Chinese parts into a mower that believe to have been built in the US and has held up very well.



Replacementparts.com shows the circuit breaker (or circuit switch) to be "obsolete", confirming Black and Decker.



Is there any place I can go to for a new circuit breaker?